Keithley Keithley Instruments DMM6500 Manual

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Model DMM6500 6½-digit Bench/System Multimeter

Reference Manual

DMM6500-901-01 Rev. A / April 2018

Test Equipment Depot - 800.517.8431 - 99 Washington Street Melrose, MA 02176 - TestEquipmentDepot.com

*PDMM6500-901-01A*

DMM6500-901-01A

6½-Digit Multimeter with Scanning

DMM6500

Reference Manual

Cleveland, Ohio, U.S.A.

Any unauthorized reproduction, photocopy, or use of the information herein, in whole or in part,

without the prior written approval of Keithley Instruments, LLC, is strictly prohibited.

These are the original instructions in English.

TSP®, TSP-Link®, and TSP-Net® are trademarks of Keithley Instruments. All Keithley Instruments

product names are trademarks or registered trademarks of Keithley Instruments, LLC. Other brand

names are trademarks or registered trademarks of their respective holders.

PUC-Rio.

Microsoft, Visual C++, Excel, and Windows are either registered trademarks or trademarks of

Microsoft Corporation in the United States and/or other countries.

Document number: DMM6500-901-01 Rev. A / April 2018

Safety precautions

The following safety precautions should be observed before using this product and any associated instrumentation. Although some instruments and accessories would normally be used with nonhazardous voltages, there are situations where hazardous conditions may be present.

This product is intended for use by personnel who recognize shock hazards and are familiar with the safety precautions required to avoid possible injury. Read and follow all installation, operation, and maintenance information carefully before using the product. Refer to the user documentation for complete product specifications.

If the product is used in a manner not specified, the protection provided by the product warranty may be impaired.

The types of product users are:

Responsible body is the individual or group responsible for the use and maintenance of equipment, for ensuring that the equipment is operated within its specifications and operating limits, and for ensuring that operators are adequately trained.

Operators use the product for its intended function. They must be trained in electrical safety procedures and proper use of the instrument. They must be protected from electric shock and contact with hazardous live circuits.

Maintenance personnel perform routine procedures on the product to keep it operating properly, for example, setting the line voltage or replacing consumable materials. Maintenance procedures are described in the user documentation. The procedures explicitly state if the operator may perform them. Otherwise, they should be performed only by service personnel.

Service personnel are trained to work on live circuits, perform safe installations, and repair products. Only properly trained service personnel may perform installation and service procedures.

Keithley products are designed for use with electrical signals that are measurement, control, and data I/O connections, with low transient overvoltages, and must not be directly connected to mains voltage or to voltage sources with high transient overvoltages. Measurement Category II (as referenced in IEC 60664) connections require protection for high transient overvoltages often associated with local AC mains connections. Certain Keithley measuring instruments may be connected to mains. These instruments will be marked as category II or higher.

Unless explicitly allowed in the specifications, operating manual, and instrument labels, do not connect any instrument to mains.

Exercise extreme caution when a shock hazard is present. Lethal voltage may be present on cable connector jacks or test fixtures. The American National Standards Institute (ANSI) states that a shock hazard exists when voltage levels greater than 30 V RMS, 42.4 V peak, or 60 VDC are present. A good safety practice is to expect that hazardous voltage is present in any unknown circuit before measuring.

Operators of this product must be protected from electric shock at all times. The responsible body must ensure that operators are prevented access and/or insulated from every connection point. In some cases, connections must be exposed to potential human contact. Product operators in these circumstances must be trained to protect themselves from the risk of electric shock. If the circuit is capable of operating at or above 1000 V, no conductive part of the circuit may be exposed.

Do not connect switching cards directly to unlimited power circuits. They are intended to be used with impedance-limited sources. NEVER connect switching cards directly to AC mains. When connecting sources to switching cards, install protective devices to limit fault current and voltage to the card.

Before operating an instrument, ensure that the line cord is connected to a properly-grounded power receptacle. Inspect the connecting cables, test leads, and jumpers for possible wear, cracks, or breaks before each use.

When installing equipment where access to the main power cord is restricted, such as rack mounting, a separate main input power disconnect device must be provided in close proximity to the equipment and within easy reach of the operator.

For maximum safety, do not touch the product, test cables, or any other instruments while power is applied to the circuit under test. ALWAYS remove power from the entire test system and discharge any capacitors before: connecting or disconnecting cables or jumpers, installing or removing switching cards, or making internal changes, such as installing or removing jumpers.

Do not touch any object that could provide a current path to the common side of the circuit under test or power line (earth) ground. Always make measurements with dry hands while standing on a dry, insulated surface capable of withstanding the voltage being measured.

For safety, instruments and accessories must be used in accordance with the operating instructions. If the instruments or accessories are used in a manner not specified in the operating instructions, the protection provided by the equipment may be impaired.

Do not exceed the maximum signal levels of the instruments and accessories. Maximum signal levels are defined in the specifications and operating information and shown on the instrument panels, test fixture panels, and switching cards.

When fuses are used in a product, replace with the same type and rating for continued protection against fire hazard.

Chassis connections must only be used as shield connections for measuring circuits, NOT as protective earth (safety ground) connections.

If you are using a test fixture, keep the lid closed while power is applied to the device under test. Safe operation requires the use of a lid interlock.

If a screw is present, connect it to protective earth (safety ground) using the wire recommended in the user documentation.

The symbol on an instrument means caution, risk of hazard. The user must refer to the operating instructions located in the user documentation in all cases where the symbol is marked on the instrument.

The symbol on an instrument means warning, risk of electric shock. Use standard safety precautions to avoid personal contact with these voltages.

The symbol on an instrument shows that the surface may be hot. Avoid personal contact to prevent burns.

The symbol indicates a connection terminal to the equipment frame.

If this symbol is on a product, it indicates that mercury is present in the display lamp. Please note that the lamp must be properly disposed of according to federal, state, and local laws.

The WARNING heading in the user documentation explains hazards that might result in personal injury or death. Always read the associated information very carefully before performing the indicated procedure.

The CAUTION heading in the user documentation explains hazards that could damage the instrument. Such damage may invalidate the warranty.

The CAUTION heading with the symbol in the user documentation explains hazards that could result in moderate or minor injury or damage the instrument. Always read the associated information very carefully before performing the indicated procedure. Damage to the instrument may invalidate the warranty.

Instrumentation and accessories shall not be connected to humans.

Before performing any maintenance, disconnect the line cord and all test cables.

To maintain protection from electric shock and fire, replacement components in mains circuits — including the power transformer, test leads, and input jacks — must be purchased from Keithley. Standard fuses with applicable national safety approvals may be used if the rating and type are the same. The detachable mains power cord provided with the instrument may only be replaced with a similarly rated power cord. Other components that are not safety-related may be purchased from other suppliers as long as they are equivalent to the original component (note that selected parts should be purchased only through Keithley to maintain accuracy and functionality of the product). If you are unsure about the applicability of a replacement component, call a Keithley office for information.

Unless otherwise noted in product-specific literature, Keithley instruments are designed to operate indoors only, in the following environment: Altitude at or below 2,000 m (6,562 ft); temperature 0 °C to 50 °C (32 °F to 122 °F); and pollution degree 1 or 2.

To clean an instrument, use a cloth dampened with deionized water or mild, water-based cleaner. Clean the exterior of the instrument only. Do not apply cleaner directly to the instrument or allow liquids to enter or spill on the instrument. Products that consist of a circuit board with no case or chassis (e.g., a data acquisition board for installation into a computer) should never require cleaning if handled according to instructions. If the board becomes contaminated and operation is affected, the board should be returned to the factory for proper cleaning/servicing.

Safety precaution revision as of June 2017.

Introduction ............................................................................................................... 1-1

Table of contents

Welcome .............................................................................................................................. 1-1

Extended warranty ............................................................................................................... 1-1

Contact information .............................................................................................................. 1-1

Organization of manual sections .......................................................................................... 1-2

Capabilities and features...................................................................................................... 1-3

General ratings ..................................................................................................................... 1-3

Installation ................................................................................................................. 2-1

Dimensions .......................................................................................................................... 2-1

Bumpers and extension feet ................................................................................................ 2-3

Removing the bumpers ............................................................................................................. 2-3

Adjusting the tilt feet .................................................................................................................. 2-3

Removing the tilt feet for rack mounting .................................................................................... 2-3

Installing a scanner card ...................................................................................................... 2-4

Instrument power ................................................................................................................. 2-4

Connect the power cord ............................................................................................................ 2-4

Turn the DMM6500 on or off ..................................................................................................... 2-5

Remote communications interfaces ..................................................................................... 2-5

Supported remote interfaces ..................................................................................................... 2-6

Comparison of the communications interfaces .......................................................................... 2-6

GPIB setup ................................................................................................................................ 2-7

LAN communications .............................................................................................................. 2-11

USB communications .............................................................................................................. 2-18

RS-232 .................................................................................................................................... 2-22

DMM6500 web interface ......................................................................................................... 2-23

How to install the Keithley I/O Layer ....................................................................................... 2-28

Modifying, repairing, or removing Keithley I/O Layer software ................................................ 2-29

Determining the command set you will use ....................................................................... 2-29

System information ............................................................................................................ 2-30

View system information from the front panel ......................................................................... 2-30

View system information using SCPI commands .................................................................... 2-31

View system information using TSP commands ..................................................................... 2-31

Instrument description ............................................................................................. 3-1

Front-panel overview ............................................................................................................ 3-1

Rear panel overview ............................................................................................................ 3-3

Touchscreen display ............................................................................................................ 3-5

Scroll bars ................................................................................................................................. 3-6

Enter information ....................................................................................................................... 3-6

Adjust the backlight brightness and dimmer .............................................................................. 3-7

Event messages ........................................................................................................................ 3-8

Screen descriptions .............................................................................................................. 3-8

Home screen ............................................................................................................................. 3-8

Table of contents DMM6500 6½-Digit Multimeter with Scanning Reference Manual

Menu overview ........................................................................................................................ 3-22

Trigger menu ........................................................................................................................... 3-51

Scripts menu ........................................................................................................................... 3-54

System menu .......................................................................................................................... 3-55

APPS Manager .................................................................................................................. 3-60

Download and run TSP applications ....................................................................................... 3-60

Examples in this manual .................................................................................................... 3-60

Display features ................................................................................................................. 3-61

Setting the number of displayed digits .................................................................................... 3-61

Setting the display format ........................................................................................................ 3-62

Customizing a message for the USER swipe screen .............................................................. 3-63

Creating messages for interactive prompts ............................................................................. 3-64

Saving screen captures to a USB flash drive .......................................................................... 3-64

Instrument sounds .............................................................................................................. 3-65

General operation ..................................................................................................... 4-1

Instrument access ................................................................................................................ 4-1

Changing the instrument access mode ..................................................................................... 4-2

Changing the password ............................................................................................................ 4-2

Switching control interfaces....................................................................................................... 4-3

Saving setups ....................................................................................................................... 4-3

Save a user setup to internal memory ....................................................................................... 4-3

Save a user setup to a USB flash drive ..................................................................................... 4-4

Copy a user setup ..................................................................................................................... 4-5

Delete a user setup ................................................................................................................... 4-5

Recall a user setup ................................................................................................................... 4-5

Define the setup used when power is turned on ....................................................................... 4-6

Saving front-panel settings into a macro script .................................................................... 4-7

Recording a macro script .......................................................................................................... 4-8

Running a macro script ............................................................................................................. 4-8

Front-panel macro recording limitations .................................................................................... 4-9

Using the event log .............................................................................................................. 4-9

Information provided for each event log entry ........................................................................... 4-9

Event log settings ...................................................................................................................... 4-9

Effects of errors on scripts....................................................................................................... 4-10

Resets ................................................................................................................................ 4-11

Reset the instrument ............................................................................................................... 4-12

Configuration lists ............................................................................................................... 4-12

Instrument configuration .......................................................................................................... 4-12

What is a configuration list? .................................................................................................... 4-13

What is a configuration index? ................................................................................................ 4-13

What settings are stored in a configuration list? ...................................................................... 4-14

Creating, storing, and performing operations on configuration lists and indexes .................... 4-14

Saving a configuration list ....................................................................................................... 4-15

Using remote commands for configuration list operations ....................................................... 4-16

Making measurements ............................................................................................. 5-1

Test connections .................................................................................................................. 5-1

Basic connections ..................................................................................................................... 5-2

Front- or rear-panel test connections ........................................................................................ 5-2

DMM6500 6½-Digit Multimeter with Scanning Reference Manual Table of contents

Measurement overview ........................................................................................................ 5-3

Measurement capabilities.......................................................................................................... 5-4

Warmup time ............................................................................................................................. 5-4

High-energy circuit safety precautions ...................................................................................... 5-4

DC voltage measurements ........................................................................................................ 5-5

AC voltage measurements ........................................................................................................ 5-9

DC current measurements ...................................................................................................... 5-10

AC current measurements ...................................................................................................... 5-12

Resistance measurements ...................................................................................................... 5-14

Continuity measurements........................................................................................................ 5-21

Frequency measurements....................................................................................................... 5-23

Period measurements ............................................................................................................. 5-25

Diode measurements .............................................................................................................. 5-26

Temperature measurements ................................................................................................... 5-28

Capacitance measurements.................................................................................................... 5-30

DC voltage ratio measurements .............................................................................................. 5-31

Digitize functions ..................................................................................................................... 5-34

Display results of two measure functions ................................................................................ 5-38

Displayed measurements ........................................................................................................ 5-40

Using Quickset ........................................................................................................................ 5-40

Measurement methods ...................................................................................................... 5-41

Continuous measurement triggering ....................................................................................... 5-41

Trigger key triggering .............................................................................................................. 5-41

Trigger model triggering .......................................................................................................... 5-41

Switching between measurement methods ............................................................................. 5-42

Auto Delay .......................................................................................................................... 5-42

Voltage autodelay times .......................................................................................................... 5-44

Current autodelay times .......................................................................................................... 5-44

Resistance autodelay times .................................................................................................... 5-44

Frequency and period autodelay times ................................................................................... 5-45

Temperature autodelay and autorange times.......................................................................... 5-45

Capacitance autodelay times .................................................................................................. 5-45

Diode autodelay times ............................................................................................................. 5-45

Automatic reference measurements .................................................................................. 5-46

Setting autozero ...................................................................................................................... 5-46

Ranges ............................................................................................................................... 5-47

Selecting the automatic measurement range .......................................................................... 5-47

Selecting a specific measure range ........................................................................................ 5-47

Relative offset .................................................................................................................... 5-48

Establishing a relative offset value .......................................................................................... 5-48

Calculations that you can apply to measurements ............................................................ 5-50

mx+b ....................................................................................................................................... 5-50

Percent .................................................................................................................................... 5-51

Reciprocal (1/X) ...................................................................................................................... 5-51

Setting mx+b math operations ................................................................................................ 5-51

Setting percent math operations ............................................................................................. 5-52

Setting reciprocal math operations .......................................................................................... 5-52

Switching math on the SETTINGS swipe screen .................................................................... 5-53

Filtering measurement data ............................................................................................... 5-53

Repeating average filter .......................................................................................................... 5-53

Moving average filter ............................................................................................................... 5-54

Filter window ........................................................................................................................... 5-54

Setting up the averaging filter.................................................................................................. 5-54

Limit testing and binning .................................................................................................... 5-55

Table of contents DMM6500 6½-Digit Multimeter with Scanning Reference Manual

Limit testing using the front-panel interface ............................................................................. 5-56

Line cycle synchronization ................................................................................................. 5-57

Using aperture or NPLCs to adjust speed and accuracy ................................................... 5-57

DMM resistance measurement methods ........................................................................... 5-59

Constant-current source method ............................................................................................. 5-59

Ratiometric method ................................................................................................................. 5-60

Low-level voltage measurement considerations ................................................................ 5-62

Thermoelectric potentials ........................................................................................................ 5-63

Magnetic fields ........................................................................................................................ 5-64

Radio frequency interference .................................................................................................. 5-65

Shielding ................................................................................................................................. 5-65

Measurement settling considerations ................................................................................ 5-67

Reference junctions ........................................................................................................... 5-67

Simulated reference junction ................................................................................................... 5-67

External reference junction...................................................................................................... 5-68

Offset-compensated ohm calculations ............................................................................... 5-68

Order of operations ............................................................................................................ 5-70

Switching and scanning ........................................................................................... 6-1

Scanner cards ...................................................................................................................... 6-1

Pseudocards ............................................................................................................................. 6-1

Connections to a scanner card .................................................................................................. 6-1

Identify installed scanner card ................................................................................................... 6-2

Determine scanner card capabilities ......................................................................................... 6-3

Setting up measurement channels ............................................................................................ 6-3

Making measurements with channels ....................................................................................... 6-8

Opening and closing channels .................................................................................................. 6-9

Channel status ........................................................................................................................ 6-12

Relay closure counts ............................................................................................................... 6-14

Using watch channels ............................................................................................................. 6-14

Scanning and triggering .......................................................................................................... 6-15

Multiple channel operation ...................................................................................................... 6-32

Reading buffers ........................................................................................................ 7-1

Reading buffers .................................................................................................................... 7-1

Getting started with buffers ....................................................................................................... 7-1

Remote buffer operation ......................................................................................................... 7-19

Apply mathematical expressions to reading buffer data .......................................................... 7-26

Graphing .................................................................................................................... 8-1

Graphing .............................................................................................................................. 8-1

Graph tab ............................................................................................................................. 8-1

Selecting the data to be plotted ................................................................................................. 8-2

Using the Graph tab .................................................................................................................. 8-2

Graph menu .............................................................................................................................. 8-3

Buffer Stats ............................................................................................................................... 8-3

Chan Stats swipe screen .......................................................................................................... 8-3

Scale ......................................................................................................................................... 8-3

Cursor ....................................................................................................................................... 8-4

DMM6500 6½-Digit Multimeter with Scanning Reference Manual Table of contents

Trace colors .............................................................................................................................. 8-4

Data tab ................................................................................................................................ 8-5

Scale Tab ............................................................................................................................. 8-5

Trigger tab ............................................................................................................................ 8-6

Setting up triggers ................................................................................................................ 8-6

Binning data with the Histogram .......................................................................................... 8-9

Setting up the Histogram ......................................................................................................... 8-10

Triggering .................................................................................................................. 9-1

Digital I/O ............................................................................................................................. 9-1

Digital I/O connector and pinouts .............................................................................................. 9-2

Digital I/O lines .......................................................................................................................... 9-5

Remote digital I/O commands ................................................................................................. 9-10

Digital I/O bit weighting ........................................................................................................... 9-11

Digital I/O programming examples .......................................................................................... 9-11

External trigger control ....................................................................................................... 9-14

Setting up the external I/O....................................................................................................... 9-14

Remote external I/O commands .............................................................................................. 9-15

Triggering ........................................................................................................................... 9-15

Command interface triggering ................................................................................................. 9-15

Triggering using hardware lines .............................................................................................. 9-17

Analog triggering overview ...................................................................................................... 9-17

LAN triggering overview .......................................................................................................... 9-20

Trigger timers .......................................................................................................................... 9-22

Event blenders ........................................................................................................................ 9-24

Interactive triggering ................................................................................................................ 9-26

Trigger model ..................................................................................................................... 9-28

Trigger model blocks ............................................................................................................... 9-28

Predefined trigger models ....................................................................................................... 9-47

Assembling trigger model blocks ............................................................................................. 9-49

Running the trigger model ....................................................................................................... 9-51

Using trigger events to start actions in the trigger model ........................................................ 9-54

TSP-Link and TSP-Net ............................................................................................ 10-1

TSP-Link System Expansion Interface .............................................................................. 10-1

TSP-Link connections ............................................................................................................. 10-1

TSP-Link nodes ....................................................................................................................... 10-3

Master and subordinates ......................................................................................................... 10-3

Initializing the TSP-Link system .............................................................................................. 10-4

Sending commands to TSP-Link nodes .................................................................................. 10-5

Using the reset() command ..................................................................................................... 10-5

Terminating scripts on the TSP-Link system ........................................................................... 10-5

Triggering using TSP-Link trigger lines ................................................................................... 10-6

Running simultaneous test scripts ........................................................................................... 10-6

Using DMM6500 TSP-Link commands with other TSP-Link products .................................. 10-11

TSP-Net ........................................................................................................................... 10-12

Using TSP-Net with any ethernet-enabled instrument .......................................................... 10-12

Remote instrument events .................................................................................................... 10-14

TSP-Net instrument commands: General device control ...................................................... 10-14

TSP-Net instrument commands: TSP-enabled device control .............................................. 10-15

Table of contents DMM6500 6½-Digit Multimeter with Scanning Reference Manual

Example: Using tspnet commands ........................................................................................ 10-15

Maintenance ............................................................................................................ 11-1

Introduction ........................................................................................................................ 11-1

Line fuse replacement ........................................................................................................ 11-1

Line voltage verification...................................................................................................... 11-3

Current input fuse replacement .......................................................................................... 11-4

Measurement input fuse replacement ................................................................................ 11-5

Lithium battery .................................................................................................................... 11-6

Front-panel display ............................................................................................................. 11-6

Cleaning the front-panel display .............................................................................................. 11-6

Abnormal display operation ..................................................................................................... 11-6

Removing ghost images or contrast irregularities ................................................................... 11-6

Upgrading the firmware ...................................................................................................... 11-7

From the front panel ................................................................................................................ 11-7

Using TSP ............................................................................................................................... 11-8

Using SCPI.............................................................................................................................. 11-8

Using TSB ............................................................................................................................... 11-9

Introduction to SCPI commands ....................................... Error! Bookmark not defined.

Introduction to SCPI ........................................................................................................... 12-1

Command execution rules....................................................................................................... 12-1

Command messages .............................................................................................................. 12-1

SCPI command formatting ................................................................................................. 12-2

SCPI command short and long forms ..................................................................................... 12-2

Optional command words........................................................................................................ 12-3

MINimum, MAXimum, and DEFault ........................................................................................ 12-3

Queries ................................................................................................................................... 12-3

SCPI parameters ..................................................................................................................... 12-4

Sending strings ....................................................................................................................... 12-4

Channel naming ...................................................................................................................... 12-5

Using the SCPI command reference ................................................................................. 12-6

Command name and summary table ...................................................................................... 12-7

Command usage ..................................................................................................................... 12-8

Command details .................................................................................................................... 12-8

Example section ...................................................................................................................... 12-9

Related commands list ............................................................................................................ 12-9

SCPI command reference ....................................................................................... 13-1

*RCL ....................................................................................................................................... 13-1

*SAV ....................................................................................................................................... 13-2

:FETCh? .................................................................................................................................. 13-3

:MEASure:DIGitize? ................................................................................................................ 13-5

:MEASure? .............................................................................................................................. 13-7

:READ:DIGitize? ................................................................................................................... 13-10

:READ? ................................................................................................................................. 13-12

CALCulate subsystem ...................................................................................................... 13-15

:CALCulate2:<function>:LIMit<Y>:AUDible ........................................................................... 13-15

DMM6500 6½-Digit Multimeter with Scanning Reference Manual Table of contents

:CALCulate2:<function>:LIMit<Y>:CLEar:AUTO ................................................................... 13-16

:CALCulate2:<function>:LIMit<Y>:CLEar[:IMMediate] .......................................................... 13-18

:CALCulate2:<function>:LIMit<Y>:FAIL? .............................................................................. 13-19

:CALCulate2:<function>:LIMit<Y>:LOWer[:DATA] ................................................................ 13-20

:CALCulate2:<function>:LIMit<Y>:STATe ............................................................................. 13-22

:CALCulate2:<function>:LIMit<Y>:UPPer[:DATA] ................................................................. 13-24

:CALCulate[1]:<function>:MATH:FORMat............................................................................. 13-25

:CALCulate[1]:<function>:MATH:MBFactor........................................................................... 13-26

:CALCulate[1]:<function>:MATH:MMFactor .......................................................................... 13-28

:CALCulate[1]:<function>:MATH:PERCent ........................................................................... 13-29

:CALCulate[1]:<function>:MATH:STATe ............................................................................... 13-31

DIGital subsystem ............................................................................................................ 13-31

:DIGital:LINE<n>:MODE ....................................................................................................... 13-32

:DIGital:LINE<n>:STATe ....................................................................................................... 13-34

:DIGital:READ? ..................................................................................................................... 13-35

:DIGital:WRITe <n> ............................................................................................................... 13-35

DISPlay subsystem .......................................................................................................... 13-36

:DISPlay:BUFFer:ACTive ...................................................................................................... 13-36

:DISPlay:CLEar ..................................................................................................................... 13-37

:DISPlay:<function>:DIGits.................................................................................................... 13-37

:DISPlay:LIGHt:STATe .......................................................................................................... 13-38

:DISPlay:READing:FORMat .................................................................................................. 13-39

:DISPlay:SCReen .................................................................................................................. 13-40

:DISPlay:USER<n>:TEXT[:DATA] ........................................................................................ 13-41

:DISPlay:WATCh:CHANnels ................................................................................................. 13-41

FORMat subsystem ......................................................................................................... 13-42

:FORMat:ASCii:PRECision ................................................................................................... 13-42

:FORMat:BORDer ................................................................................................................. 13-43

:FORMat[:DATA] ................................................................................................................... 13-44

ROUTe subsystem ........................................................................................................... 13-45

:ABORt .................................................................................................................................. 13-45

:INITiate[:IMMediate] ............................................................................................................. 13-45

:ROUTe[:CHANnel]:CLOSe .................................................................................................. 13-46

:ROUTe[:CHANnel]:CLOSe:COUNt? .................................................................................... 13-47

:ROUTe[:CHANnel]:DELay ................................................................................................... 13-48

:ROUTe[:CHANnel]:LABel..................................................................................................... 13-49

:ROUTe[:CHANnel]:MULTiple:CLOSe .................................................................................. 13-50

:ROUTe[:CHANnel]:MULTiple:OPEN .................................................................................... 13-51

:ROUTe[:CHANnel]:OPEN .................................................................................................... 13-51

:ROUTe[:CHANnel]:OPEN:ALL ............................................................................................. 13-52

:ROUTe[:CHANnel]:STATe? ................................................................................................. 13-52

:ROUTe[:CHANnel]:TYPE? ................................................................................................... 13-53

:ROUTe:SCAN:ADD ............................................................................................................. 13-53

:ROUTe:SCAN:ADD:SINGle ................................................................................................. 13-55

:ROUTe:SCAN:ALARm ......................................................................................................... 13-56

:ROUTe:SCAN:BUFFer ........................................................................................................ 13-56

:ROUTe:SCAN:BYPass ........................................................................................................ 13-58

:ROUTe:SCAN:CHANnel:STIMulus ...................................................................................... 13-59

:ROUTe:SCAN:COUNt:SCAN ............................................................................................... 13-61

:ROUTe:SCAN:COUNt:STEP? ............................................................................................. 13-62

:ROUTe:SCAN[:CREate]....................................................................................................... 13-63

:ROUTe:SCAN:EXPort .......................................................................................................... 13-65

:ROUTe:SCAN:INTerval ....................................................................................................... 13-67

:ROUTe:SCAN:LEARn:LIMits ............................................................................................... 13-68

:ROUTe:SCAN:MEASure:STIMulus ...................................................................................... 13-69

:ROUTe:SCAN:MEASure:INTerval ....................................................................................... 13-71

:ROUTe:SCAN:MODE .......................................................................................................... 13-72

Table of contents DMM6500 6½-Digit Multimeter with Scanning Reference Manual

:ROUTe:SCAN:MONitor:CHANnel ........................................................................................ 13-73

:ROUTe:SCAN:MONitor:LIMit:LOWer[:DATA] ...................................................................... 13-74

:ROUTe:SCAN:MONitor:LIMit:UPPer[:DATA] ....................................................................... 13-75

:ROUTe:SCAN:MONitor:MODE ............................................................................................ 13-76

:ROUTe:SCAN:RESTart ....................................................................................................... 13-77

:ROUTe:SCAN:STARt:STIMulus .......................................................................................... 13-78

:ROUTe:SCAN:STATe? ........................................................................................................ 13-80

:ROUTe:TERMinals? ............................................................................................................ 13-81

SCRipt subsystem ............................................................................................................ 13-81

:SCRipt:RUN ......................................................................................................................... 13-82

SENSe1 subsystem ......................................................................................................... 13-83

[:SENSe[1]]:<function>:APERture ......................................................................................... 13-83

[:SENSe[1]]:<function>:ATRigger:EDGE:LEVel .................................................................... 13-86

[:SENSe[1]]:<function>:ATRigger:EDGE:SLOPe .................................................................. 13-87

[:SENSe[1]]:<function>:ATRigger:MODE .............................................................................. 13-88

[:SENSe[1]]:<function>:ATRigger:WINDow:DIRection .......................................................... 13-89

[:SENSe[1]]:<function>:ATRigger:WINDow:LEVel:HIGH ...................................................... 13-90

[:SENSe[1]]:<function>:ATRigger:WINDow:LEVel:LOW ....................................................... 13-91

[:SENSe[1]]:<function>:AVERage:COUNt ............................................................................ 13-92

[:SENSe[1]]:<function>:AVERage[:STATe] ........................................................................... 13-93

[:SENSe[1]]:<function>:AVERage:TCONtrol ......................................................................... 13-95

[:SENSe[1]]:<function>:AVERage:WINDow .......................................................................... 13-97

[:SENSe[1]]:<function>:AZERo[:STATe] ............................................................................... 13-98

[:SENSe[1]]:<function>:BIAS:LEVel .................................................................................... 13-100

[:SENSe[1]]:<function>:DB:REFerence ............................................................................... 13-101

[:SENSe[1]]:<function>:DBM:REFerence ............................................................................ 13-102

[:SENSe[1]]:<function>:DELay:AUTO ................................................................................. 13-103

[:SENSe[1]]:<function>:DELay:USER<n> ........................................................................... 13-104

[:SENSe[1]]:<function>:DETector:BANDwidth .................................................................... 13-105

[:SENSe[1]]:<function>:INPutimpedance ............................................................................ 13-106

[:SENSe[1]]:<function>:LINE:SYNC .................................................................................... 13-107

[:SENSe[1]]:<function>:NPLCycles ..................................................................................... 13-108

[:SENSe[1]]:<function>:OCOMpensated ............................................................................. 13-110

[:SENSe[1]]:<function>:ODETector ..................................................................................... 13-111

[:SENSe[1]]:<function>:RANGe:AUTO ............................................................................... 13-112

[:SENSe[1]]:<function>:RANGe[:UPPer] ............................................................................. 13-114

[:SENSe[1]]:<function>:RELative ........................................................................................ 13-116

[:SENSe[1]]:<function>:RELative:ACQuire ......................................................................... 13-118

[:SENSe[1]]:<function>:RELative:METHod ......................................................................... 13-119

[:SENSe[1]]:<function>:RELative:STATe ............................................................................ 13-120

[:SENSe[1]]:<function>:RTD:ALPHa ................................................................................... 13-121

[:SENSe[1]]:<function>:RTD:BETA ..................................................................................... 13-122

[:SENSe[1]]:<function>:RTD:DELTa ................................................................................... 13-124

[:SENSe[1]]:<function>:RTD:FOUR .................................................................................... 13-125

[:SENSe[1]]:<function>:RTD:THRee ................................................................................... 13-126

[:SENSe[1]]:<function>:RTD:TWO ...................................................................................... 13-127

[:SENSe[1]]:<function>:RTD:ZERO .................................................................................... 13-128

[:SENSe[1]]:<function>:SRATe ........................................................................................... 13-129

[:SENSe[1]]:<function>:SENSe:RANGe[:UPPer]? .............................................................. 13-130

[:SENSe[1]]:<function>:TCouple:RJUNction:SIMulated ...................................................... 13-131

[:SENSe[1]]:<function>:TCouple:RJUNction:RSELect ........................................................ 13-133

[:SENSe[1]]:<function>:TCouple:TYPE ............................................................................... 13-134

[:SENSe[1]]:<function>:THERmistor ................................................................................... 13-135

[:SENSe[1]]:<function>:THReshold:RANGe........................................................................ 13-136

[:SENSe[1]]:<function>:THReshold:RANGe:AUTO ............................................................. 13-137

[:SENSe[1]]:<function>:TRANsducer .................................................................................. 13-138

[:SENSe[1]]:<function>:UNIT .............................................................................................. 13-139

[:SENSe[1]]:AZERo:ONCE.................................................................................................. 13-140

[:SENSe[1]]:CONFiguration:LIST:CATalog? ....................................................................... 13-141

DMM6500 6½-Digit Multimeter with Scanning Reference Manual Table of contents

[:SENSe[1]]:CONFiguration:LIST:CREate........................................................................... 13-142

[:SENSe[1]]:CONFiguration:LIST:DELete ........................................................................... 13-142

[:SENSe[1]]:CONFiguration:LIST:QUERy? ......................................................................... 13-143

[:SENSe[1]]:CONFiguration:LIST:RECall ............................................................................ 13-144

[:SENSe[1]]:CONFiguration:LIST:SIZE? ............................................................................. 13-145

[:SENSe[1]]:CONFiguration:LIST:STORe ........................................................................... 13-146

[:SENSe[1]]:COUNt ............................................................................................................. 13-148

[:SENSe[1]]:DIGitize:COUNt ............................................................................................... 13-149

[:SENSe[1]]:DIGitize:FUNCtion[:ON] ................................................................................... 13-150

[:SENSe[1]]:FUNCtion[:ON] ................................................................................................ 13-151

STATus subsystem ........................................................................................................ 13-152

:STATus:CLEar ................................................................................................................... 13-152

:STATus:OPERation:CONDition? ....................................................................................... 13-152

:STATus:OPERation:ENABle .............................................................................................. 13-153

:STATus:OPERation:MAP................................................................................................... 13-153

:STATus:OPERation[:EVENt]? ............................................................................................ 13-154

:STATus:PRESet ................................................................................................................ 13-155

:STATus:QUEStionable:CONDition? .................................................................................. 13-155

:STATus:QUEStionable:ENABle ......................................................................................... 13-156

:STATus:QUEStionable:MAP .............................................................................................. 13-156

:STATus:QUEStionable[:EVENt]? ....................................................................................... 13-157

SYSTem subsystem ....................................................................................................... 13-158

:SYSTem:ACCess ............................................................................................................... 13-158

:SYSTem:BEEPer[:IMMediate] ........................................................................................... 13-159

:SYSTem:CARD1:IDN? ...................................................................................................... 13-160

:SYSTem:CARD1:VCHannel[:STARt]? ............................................................................... 13-160

:SYSTem:CARD1:VCHannel:END? .................................................................................... 13-161

:SYSTem:CARD1:VMAX?................................................................................................... 13-161

:SYSTem:CLEar .................................................................................................................. 13-162

:SYSTem:COMMunication:LAN:CONFigure ....................................................................... 13-162

:SYSTem:COMMunication:LAN:MACaddress? ................................................................... 13-163

:SYSTem:ERRor[:NEXT]?................................................................................................... 13-164

:SYSTem:ERRor:CODE[:NEXT]? ....................................................................................... 13-165

:SYSTem:ERRor:COUNt?................................................................................................... 13-165

:SYSTem:EVENtlog:COUNt? .............................................................................................. 13-166

:SYSTem:EVENtlog:NEXT? ................................................................................................ 13-167

:SYSTem:EVENtlog:POST.................................................................................................. 13-168

:SYSTem:EVENtlog:SAVE .................................................................................................. 13-169

:SYSTem:GPIB:ADDRess................................................................................................... 13-169

:SYSTem:LFRequency? ..................................................................................................... 13-170

:SYSTem:PASSword:NEW ................................................................................................. 13-171

:SYSTem:PCARd1 .............................................................................................................. 13-172

:SYSTem:POSetup ............................................................................................................. 13-173

:SYSTem:TIME ................................................................................................................... 13-174

:SYSTem:VERSion? ........................................................................................................... 13-175

TRACe subsystem ......................................................................................................... 13-175

:TRACe:ACTual? ................................................................................................................ 13-175

:TRACe:ACTual:END? ........................................................................................................ 13-176

:TRACe:ACTual:STARt? ..................................................................................................... 13-177

:TRACe:CHANnel:MATH .................................................................................................... 13-179

:TRACe:CLEar .................................................................................................................... 13-182

:TRACe:DATA? ................................................................................................................... 13-183

:TRACe:DELete .................................................................................................................. 13-186

:TRACe:FILL:MODE ........................................................................................................... 13-186

:TRACe:LOG:STATe ........................................................................................................... 13-187

:TRACe:MAKE .................................................................................................................... 13-188

:TRACe:MATH .................................................................................................................... 13-190

:TRACe:POINts ................................................................................................................... 13-193

Table of contents DMM6500 6½-Digit Multimeter with Scanning Reference Manual

:TRACe:SAVE ..................................................................................................................... 13-194

:TRACe:SAVE:APPend ....................................................................................................... 13-196

:TRACe:STATistics:AVERage? ........................................................................................... 13-198

:TRACe:STATistics:CLEar .................................................................................................. 13-199

:TRACe:STATistics:MAXimum? .......................................................................................... 13-199

:TRACe:STATistics:MINimum? ........................................................................................... 13-200

:TRACe:STATistics:PK2Pk? ............................................................................................... 13-201

:TRACe:STATistics:SPAN?................................................................................................. 13-202

:TRACe:STATistics:STDDev? ............................................................................................. 13-203

:TRACe:TRIGger ................................................................................................................. 13-204

:TRACe:TRIGger:DIGitize ................................................................................................... 13-205

:TRACe:UNIT ...................................................................................................................... 13-206

:TRACe:WRITe:FORMat ..................................................................................................... 13-207

:TRACe:WRITe:READing.................................................................................................... 13-209

TRIGger subsystem ....................................................................................................... 13-212

:ABORt ................................................................................................................................ 13-212

:INITiate[:IMMediate] ........................................................................................................... 13-212

:TRIGger:BLENder<n>:CLEar ............................................................................................. 13-213

:TRIGger:BLENder<n>:MODE ............................................................................................ 13-214

:TRIGger:BLENder<n>:OVERrun? ..................................................................................... 13-215

:TRIGger:BLENder<n>:STIMulus<m> ................................................................................ 13-215

:TRIGger:BLOCk:BRANch:ALWays .................................................................................... 13-217

:TRIGger:BLOCk:BRANch:COUNter .................................................................................. 13-218

:TRIGger:BLOCk:BRANch:COUNter:COUNt? .................................................................... 13-219

:TRIGger:BLOCk:BRANch:COUNter:RESet ....................................................................... 13-219

:TRIGger:BLOCk:BRANch:DELTa ...................................................................................... 13-220

:TRIGger:BLOCk:BRANch:EVENt ...................................................................................... 13-221

:TRIGger:BLOCk:BRANch:LIMit:CONStant ........................................................................ 13-223

:TRIGger:BLOCk:BRANch:LIMit:DYNamic ......................................................................... 13-224

:TRIGger:BLOCk:BRANch:ONCE ....................................................................................... 13-225

:TRIGger:BLOCk:BRANch:ONCE:EXCLuded..................................................................... 13-226

:TRIGger:BLOCk:BUFFer:CLEar ........................................................................................ 13-227

:TRIGger:BLOCk:CONFig:NEXT ........................................................................................ 13-228

:TRIGger:BLOCk:CONFig:PREVious .................................................................................. 13-228

:TRIGger:BLOCk:CONFig:RECall ....................................................................................... 13-230

:TRIGger:BLOCk:DELay:CONStant .................................................................................... 13-230

:TRIGger:BLOCk:DELay:DYNamic ..................................................................................... 13-232

:TRIGger:BLOCk:DIGital:IO ................................................................................................ 13-232

:TRIGger:BLOCk:LIST? ...................................................................................................... 13-234

:TRIGger:BLOCk:LOG:EVENt ............................................................................................. 13-234

:TRIGger:BLOCk:MDIGitize ................................................................................................ 13-235

:TRIGger:BLOCk:NOP ........................................................................................................ 13-238

:TRIGger:BLOCk:NOTify ..................................................................................................... 13-238

:TRIGger:BLOCk:WAIT ....................................................................................................... 13-239

:TRIGger:DIGital<n>:IN:CLEar ............................................................................................ 13-241

:TRIGger:DIGital<n>:IN:EDGE ............................................................................................ 13-242

:TRIGger:DIGital<n>:IN:OVERrun? .................................................................................... 13-243

:TRIGger:DIGital<n>:OUT:LOGic ........................................................................................ 13-243

:TRIGger:DIGital<n>:OUT:PULSewidth .............................................................................. 13-244

:TRIGger:DIGital<n>:OUT:STIMulus ................................................................................... 13-245

:TRIGger:EXTernal:IN:CLEar .............................................................................................. 13-247

:TRIGger:EXTernal:IN:EDGE .............................................................................................. 13-247

:TRIGger:EXTernal:IN:OVERrun? ....................................................................................... 13-248

:TRIGger:EXTernal:OUT:LOGic .......................................................................................... 13-249

:TRIGger:EXTernal:OUT:STIMulus ..................................................................................... 13-250

:TRIGger:LAN<n>:IN:CLEar................................................................................................ 13-252

:TRIGger:LAN<n>:IN:EDGE................................................................................................ 13-253

:TRIGger:LAN<n>:IN:OVERrun? ........................................................................................ 13-254

:TRIGger:LAN<n>:OUT:CONNect:STATe .......................................................................... 13-255

DMM6500 6½-Digit Multimeter with Scanning Reference Manual Table of contents

:TRIGger:LAN<n>:OUT:IP:ADDRess .................................................................................. 13-256

:TRIGger:LAN<n>:OUT:LOGic ............................................................................................ 13-256

:TRIGger:LAN<n>:OUT:PROTocol ..................................................................................... 13-257

:TRIGger:LAN<n>:OUT:STIMulus ....................................................................................... 13-258

:TRIGger:LOAD "ConfigList" ............................................................................................... 13-259

:TRIGger:LOAD "DurationLoop" .......................................................................................... 13-260

:TRIGger:LOAD "Empty" ..................................................................................................... 13-261

:TRIGger:LOAD "GradeBinning" ......................................................................................... 13-262

:TRIGger:LOAD "LogicTrigger" ........................................................................................... 13-264

:TRIGger:LOAD "LoopUntilEvent" ....................................................................................... 13-265

:TRIGger:LOAD "SimpleLoop" ............................................................................................ 13-267

:TRIGger:LOAD "SortBinning" ............................................................................................. 13-268

:TRIGger:PAUSe ................................................................................................................. 13-270

:TRIGger:RESume .............................................................................................................. 13-270

:TRIGger:STATe? ............................................................................................................... 13-271

:TRIGger:TIMer<n>:CLEar .................................................................................................. 13-271

:TRIGger:TIMer<n>:COUNt ................................................................................................ 13-272

:TRIGger:TIMer<n>:DELay ................................................................................................. 13-274

:TRIGger:TIMer<n>:STARt:FRACtional .............................................................................. 13-274

:TRIGger:TIMer<n>:STARt:GENerate ................................................................................ 13-275

:TRIGger:TIMer<n>:STARt:OVERrun? ............................................................................... 13-276

:TRIGger:TIMer<n>:STARt:SEConds ................................................................................. 13-276

:TRIGger:TIMer<n>:STARt:STIMulus ................................................................................. 13-277

:TRIGger:TIMer<n>:STATe ................................................................................................. 13-279

Introduction to TSP commands ............................................................................. 14-1

Introduction to TSP operation ............................................................................................ 14-1

Controlling the instrument by sending individual command messages ................................... 14-1

Queries ................................................................................................................................... 14-3

USB flash drive path ............................................................................................................... 14-3

Information on scripting and programming .............................................................................. 14-3

Fundamentals of scripting for TSP ..................................................................................... 14-4

What is a script? ...................................................................................................................... 14-4

Run-time and nonvolatile memory storage of scripts .............................................................. 14-5

What can be included in scripts? ............................................................................................. 14-5

Working with scripts ................................................................................................................ 14-5

Fundamentals of programming for TSP ........................................................................... 14-12

What is Lua? ......................................................................................................................... 14-12

Lua basics ............................................................................................................................. 14-12

Standard libraries .................................................................................................................. 14-25

Test Script Builder (TSB) ................................................................................................. 14-29

Installing the TSB software.................................................................................................... 14-29

Installing the TSB add-in ....................................................................................................... 14-29

Using Test Script Builder (TSB) ............................................................................................ 14-29

Project navigator ................................................................................................................... 14-31

Script editor ........................................................................................................................... 14-31

Outline view........................................................................................................................... 14-31

Programming interaction ....................................................................................................... 14-31

Connecting an instrument in TSB .......................................................................................... 14-32

Creating a new TSP project .................................................................................................. 14-33

Adding a new TSP file to a project ........................................................................................ 14-33

Running a script .................................................................................................................... 14-34

Creating a run configuration .................................................................................................. 14-34

Memory considerations for the run-time environment ..................................................... 14-37

Table of contents DMM6500 6½-Digit Multimeter with Scanning Reference Manual

TSP command reference ........................................................................................ 15-1

TSP command programming notes ................................................................................... 15-1

TSP syntax rules ..................................................................................................................... 15-1

Time and date values .............................................................................................................. 15-2

Local and remote control ......................................................................................................... 15-3

Using the TSP command reference ................................................................................... 15-4

Command name, brief description, and summary table .......................................................... 15-5

Command usage ..................................................................................................................... 15-6

Command details .................................................................................................................... 15-6

Example section ...................................................................................................................... 15-7

Related commands and information ........................................................................................ 15-7

TSP commands .................................................................................................................. 15-7

beeper.beep() .......................................................................................................................... 15-7

buffer.channelmath() ............................................................................................................... 15-8

buffer.clearstats() .................................................................................................................. 15-11

buffer.delete() ........................................................................................................................ 15-12

buffer.getstats() ..................................................................................................................... 15-13

buffer.make() ......................................................................................................................... 15-16

buffer.math() .......................................................................................................................... 15-17

buffer.save() .......................................................................................................................... 15-20

buffer.saveappend() .............................................................................................................. 15-22

buffer.unit() ............................................................................................................................ 15-25

buffer.write.format() ............................................................................................................... 15-27

buffer.write.reading() ............................................................................................................. 15-30

bufferVar.capacity ................................................................................................................. 15-32

bufferVar.channels ................................................................................................................ 15-34

bufferVar.clear() .................................................................................................................... 15-35

bufferVar.dates ...................................................................................................................... 15-36

bufferVar.endindex ................................................................................................................ 15-37

bufferVar.extravalues ............................................................................................................ 15-38

bufferVar.extraformattedvalues ............................................................................................. 15-39

bufferVar.extravalueunits ...................................................................................................... 15-40

bufferVar.fillmode .................................................................................................................. 15-41

bufferVar.formattedreadings.................................................................................................. 15-42

bufferVar.fractionalseconds................................................................................................... 15-43

bufferVar.logstate .................................................................................................................. 15-44

bufferVar.n ............................................................................................................................ 15-45

bufferVar.readings ................................................................................................................. 15-46

bufferVar.relativetimestamps................................................................................................. 15-47

bufferVar.seconds ................................................................................................................. 15-48

bufferVar.startindex ............................................................................................................... 15-49

bufferVar.statuses ................................................................................................................. 15-50

bufferVar.times ...................................................................................................................... 15-51

bufferVar.timestamps ............................................................................................................ 15-52

bufferVar.units ....................................................................................................................... 15-54

channel.close() ...................................................................................................................... 15-55

channel.getclose() ................................................................................................................. 15-57

channel.getcount() ................................................................................................................ 15-58

channel.getdelay() ................................................................................................................. 15-59

channel.getdmm() ................................................................................................................. 15-60

channel.getlabel() .................................................................................................................. 15-61

channel.getstate() ................................................................................................................. 15-62

channel.gettype() .................................................................................................................. 15-63

channel.multiple.close() ........................................................................................................ 15-63

channel.multiple.open() ......................................................................................................... 15-64

channel.open() ...................................................................................................................... 15-64

DMM6500 6½-Digit Multimeter with Scanning Reference Manual Table of contents

channel.setdelay() ................................................................................................................. 15-65

channel.setdmm() ................................................................................................................. 15-66

channel.setlabel() .................................................................................................................. 15-76

createconfigscript() ................................................................................................................ 15-77

dataqueue.add() .................................................................................................................... 15-77

dataqueue.CAPACITY .......................................................................................................... 15-78

dataqueue.clear() .................................................................................................................. 15-79

dataqueue.count ................................................................................................................... 15-80

dataqueue.next() ................................................................................................................... 15-81

delay() ................................................................................................................................... 15-82

digio.line[N].mode ................................................................................................................. 15-83

digio.line[N].reset() ................................................................................................................ 15-85

digio.line[N].state ................................................................................................................... 15-86

digio.readport() ...................................................................................................................... 15-87

digio.writeport() ..................................................................................................................... 15-88

display.activebuffer ............................................................................................................... 15-88

display.changescreen() ......................................................................................................... 15-89

display.clear() ........................................................................................................................ 15-90

display.delete() ...................................................................................................................... 15-91

display.input.number() ........................................................................................................... 15-92

display.input.option() ............................................................................................................. 15-93

display.input.prompt() ............................................................................................................ 15-95

display.input.string() .............................................................................................................. 15-96

display.lightstate .................................................................................................................... 15-98

display.prompt() .................................................................................................................... 15-99

display.readingformat .......................................................................................................... 15-100

display.settext() ................................................................................................................... 15-101

display.waitevent() .............................................................................................................. 15-103

display.watchchannels ........................................................................................................ 15-104

dmm.digitize.analogtrigger.edge.level ................................................................................. 15-105

dmm.digitize.analogtrigger.edge.slope ................................................................................ 15-107

dmm.digitize.analogtrigger.mode ........................................................................................ 15-109

dmm.digitize.analogtrigger.window.direction ....................................................................... 15-111

dmm.digitize.analogtrigger.window.levelhigh ...................................................................... 15-113

dmm.digitize.analogtrigger.window.levellow........................................................................ 15-115

dmm.digitize.aperture .......................................................................................................... 15-117

dmm.digitize.count .............................................................................................................. 15-118

dmm.digitize.dbreference .................................................................................................... 15-119

dmm.digitize.dbmreference ................................................................................................. 15-120

dmm.digitize.displaydigits.................................................................................................... 15-122

dmm.digitize.func ................................................................................................................ 15-123

dmm.digitize.inputimpedance .............................................................................................. 15-124

dmm.digitize.limit[Y].audible ................................................................................................ 15-125

dmm.digitize.limit[Y].autoclear ............................................................................................. 15-126

dmm.digitize.limit[Y].clear() ................................................................................................. 15-127

dmm.digitize.limit[Y].enable................................................................................................. 15-129

dmm.digitize.limit[Y].fail ....................................................................................................... 15-130

dmm.digitize.limit[Y].high.value ........................................................................................... 15-131

dmm.digitize.limit[Y].low.value ............................................................................................ 15-132

dmm.digitize.math.enable ................................................................................................... 15-136

dmm.digitize.math.format .................................................................................................... 15-138

dmm.digitize.math.mxb.bfactor ........................................................................................... 15-140

dmm.digitize.math.mxb.mfactor .......................................................................................... 15-142

dmm.digitize.math.percent .................................................................................................. 15-143

dmm.digitize.range .............................................................................................................. 15-145

dmm.digitize.read() ............................................................................................................. 15-146

dmm.digitize.readwithtime() ................................................................................................ 15-147

dmm.digitize.rel.acquire() .................................................................................................... 15-148

dmm.digitize.rel.enable ....................................................................................................... 15-150

dmm.digitize.rel.level ........................................................................................................... 15-151

Table of contents DMM6500 6½-Digit Multimeter with Scanning Reference Manual

dmm.digitize.samplerate ..................................................................................................... 15-153

dmm.digitize.unit ................................................................................................................. 15-154

dmm.digitize.userdelay[N] ................................................................................................... 15-155

dmm.measure.analogtrigger.edge.level .............................................................................. 15-157

dmm.measure.analogtrigger.edge.slope ............................................................................. 15-159

dmm.measure.analogtrigger.mode ..................................................................................... 15-161

dmm.measure.analogtrigger.window.direction .................................................................... 15-163

dmm.measure.analogtrigger.window.levelhigh ................................................................... 15-165

dmm.measure.analogtrigger.window.levellow ..................................................................... 15-167

dmm.measure.aperture ....................................................................................................... 15-169

dmm.measure.autodelay ..................................................................................................... 15-171

dmm.measure.autorange .................................................................................................... 15-172

dmm.measure.autozero.enable ........................................................................................... 15-174

dmm.measure.autozero.once() ........................................................................................... 15-175

dmm.measure.bias.level ..................................................................................................... 15-176

dmm.measure.configlist.catalog() ....................................................................................... 15-177

dmm.measure.configlist.create() ......................................................................................... 15-178

dmm.measure.configlist.delete() ......................................................................................... 15-179

dmm.measure.configlist.query() .......................................................................................... 15-180

dmm.measure.configlist.recall() .......................................................................................... 15-181

dmm.measure.configlist.size() ............................................................................................. 15-182

dmm.measure.configlist.store() ........................................................................................... 15-182

dmm.measure.count ........................................................................................................... 15-184

dmm.measure.dbreference ................................................................................................. 15-185

dmm.measure.dbmreference .............................................................................................. 15-186

dmm.measure.detectorbandwidth ....................................................................................... 15-188

dmm.measure.displaydigits ................................................................................................. 15-189

dmm.measure.filter.count .................................................................................................... 15-190

dmm.measure.filter.enable .................................................................................................. 15-192

dmm.measure.filter.type ...................................................................................................... 15-193

dmm.measure.filter.window................................................................................................. 15-195

dmm.measure.fourrtd .......................................................................................................... 15-196

dmm.measure.func ............................................................................................................. 15-198

dmm.measure.inputimpedance ........................................................................................... 15-199

dmm.measure.limit[Y].audible ............................................................................................. 15-201

dmm.measure.limit[Y].autoclear .......................................................................................... 15-202

dmm.measure.limit[Y].clear() .............................................................................................. 15-203

dmm.measure.limit[Y].enable .............................................................................................. 15-204

dmm.measure.limit[Y].fail .................................................................................................... 15-205

dmm.measure.limit[Y].high.value ........................................................................................ 15-206

dmm.measure.limit[Y].low.value .......................................................................................... 15-207

dmm.measure.linesync ....................................................................................................... 15-210

dmm.measure.math.enable................................................................................................. 15-211

dmm.measure.math.format ................................................................................................. 15-214

dmm.measure.math.mxb.bfactor ......................................................................................... 15-216

dmm.measure.math.mxb.mfactor ........................................................................................ 15-217

dmm.measure.math.percent ............................................................................................... 15-219

dmm.measure.nplc .............................................................................................................. 15-220

dmm.measure.offsetcompensation.enable ......................................................................... 15-222

dmm.measure.opendetector ............................................................................................... 15-223

dmm.measure.range ........................................................................................................... 15-224

dmm.measure.read() ........................................................................................................... 15-226

dmm.measure.readwithtime() .............................................................................................. 15-227

dmm.measure.refjunction .................................................................................................... 15-228

dmm.measure.rel.acquire() ................................................................................................. 15-229

dmm.measure.rel.enable .................................................................................................... 15-230

dmm.measure.rel.level ........................................................................................................ 15-231

dmm.measure.rel.method ................................................................................................... 15-234

dmm.measure.rtdalpha ....................................................................................................... 15-235

dmm.measure.rtdbeta ......................................................................................................... 15-236

DMM6500 6½-Digit Multimeter with Scanning Reference Manual Table of contents

dmm.measure.rtddelta ........................................................................................................ 15-238

dmm.measure.rtdzero ......................................................................................................... 15-239

dmm.measure.sense.range................................................................................................. 15-241

dmm.measure.simreftemperature ....................................................................................... 15-242

dmm.measure.thermistor .................................................................................................... 15-243

dmm.measure.thermocouple............................................................................................... 15-245

dmm.measure.threertd ........................................................................................................ 15-246

dmm.measure.threshold.autorange .................................................................................... 15-248

dmm.measure.threshold.range ........................................................................................... 15-249

dmm.measure.transducer ................................................................................................... 15-250

dmm.measure.twortd .......................................................................................................... 15-251

dmm.measure.unit .............................................................................................................. 15-253

dmm.measure.userdelay[N] ................................................................................................ 15-255

dmm.reset() ......................................................................................................................... 15-256

dmm.terminals ..................................................................................................................... 15-256

eventlog.clear() ................................................................................................................... 15-257

eventlog.getcount() ............................................................................................................. 15-257

eventlog.next() .................................................................................................................... 15-258

eventlog.post() .................................................................................................................... 15-260

eventlog.save() .................................................................................................................... 15-261

exit() .................................................................................................................................... 15-262

file.close() ............................................................................................................................ 15-262

file.flush()............................................................................................................................. 15-263

file.mkdir() ........................................................................................................................... 15-265

file.open() ............................................................................................................................ 15-265

file.read() ............................................................................................................................. 15-266

file.usbdriveexists() ............................................................................................................. 15-267

file.write()............................................................................................................................. 15-267

format.asciiprecision ........................................................................................................... 15-268

format.byteorder .................................................................................................................. 15-269

format.data .......................................................................................................................... 15-270

gpib.address ........................................................................................................................ 15-271

lan.ipconfig() ........................................................................................................................ 15-272

lan.lxidomain ....................................................................................................................... 15-273

lan.macaddress ................................................................................................................... 15-273

localnode.access ................................................................................................................. 15-274

localnode.gettime() .............................................................................................................. 15-275

localnode.linefreq ................................................................................................................ 15-275

localnode.model .................................................................................................................. 15-276

localnode.password ............................................................................................................ 15-276

localnode.prompts ............................................................................................................... 15-277

localnode.prompts4882 ....................................................................................................... 15-278

localnode.serialno ............................................................................................................... 15-278

localnode.settime() .............................................................................................................. 15-279

localnode.showevents ......................................................................................................... 15-280

localnode.version ................................................................................................................ 15-281

node[N].execute() ................................................................................................................ 15-282

node[N].getglobal() .............................................................................................................. 15-283

node[N].setglobal() .............................................................................................................. 15-283

opc() .................................................................................................................................... 15-284

print() ................................................................................................................................... 15-285

printbuffer().......................................................................................................................... 15-286

printnumber() ....................................................................................................................... 15-289

reset() .................................................................................................................................. 15-290

scan.add() ........................................................................................................................... 15-291

scan.addsinglestep() ........................................................................................................... 15-293

scan.alarmnotify .................................................................................................................. 15-294

scan.buffer .......................................................................................................................... 15-295

scan.bypass ........................................................................................................................ 15-296

scan.channel.stimulus ......................................................................................................... 15-297

Table of contents DMM6500 6½-Digit Multimeter with Scanning Reference Manual

scan.create() ....................................................................................................................... 15-299

scan.export() ....................................................................................................................... 15-302

scan.learnlimits() ................................................................................................................. 15-304

scan.list() ............................................................................................................................. 15-305

scan.measure.interval ......................................................................................................... 15-306

scan.measure.stimulus ....................................................................................................... 15-307

scan.mode........................................................................................................................... 15-309

scan.monitor.channel .......................................................................................................... 15-310

scan.monitor.limit.high.value ............................................................................................... 15-311

scan.monitor.limit.low.value ................................................................................................ 15-312

scan.monitor.mode .............................................................................................................. 15-313

scan.restart ......................................................................................................................... 15-314

scan.scancount ................................................................................................................... 15-315

scan.scaninterval ................................................................................................................ 15-316

scan.state() ......................................................................................................................... 15-316

scan.start.stimulus .............................................................................................................. 15-317

scan.stepcount .................................................................................................................... 15-319

script.catalog() ..................................................................................................................... 15-320

script.delete() ...................................................................................................................... 15-321

script.load() ......................................................................................................................... 15-321

scriptVar.run() ..................................................................................................................... 15-322

scriptVar.save() ................................................................................................................... 15-322

scriptVar.source .................................................................................................................. 15-323

slot[1].idn ............................................................................................................................. 15-324

slot[1].maxvoltage ............................................................................................................... 15-324

slot[1].pseudocard ............................................................................................................... 15-325

slot[1].voltage.endchannel .................................................................................................. 15-326

slot[1].voltage.startchannel.................................................................................................. 15-326

status.clear() ....................................................................................................................... 15-327

status.condition ................................................................................................................... 15-327

status.operation.condition ................................................................................................... 15-328

status.operation.enable ....................................................................................................... 15-329

status.operation.event ......................................................................................................... 15-330

status.operation.getmap() ................................................................................................... 15-331

status.operation.setmap().................................................................................................... 15-332

status.preset() ..................................................................................................................... 15-333

status.questionable.condition .............................................................................................. 15-333

status.questionable.enable.................................................................................................. 15-334

status.questionable.event ................................................................................................... 15-334

status.questionable.getmap() .............................................................................................. 15-335

status.questionable.setmap() .............................................................................................. 15-336

status.request_enable ......................................................................................................... 15-336

status.standard.enable ........................................................................................................ 15-338

status.standard.event .......................................................................................................... 15-339

timer.cleartime() .................................................................................................................. 15-340

timer.gettime() ..................................................................................................................... 15-340

trigger.blender[N].clear() ..................................................................................................... 15-341

trigger.blender[N].orenable.................................................................................................. 15-342

trigger.blender[N].overrun ................................................................................................... 15-342

trigger.blender[N].reset() ..................................................................................................... 15-343

trigger.blender[N].stimulus[M] ............................................................................................. 15-344

trigger.blender[N].wait() ....................................................................................................... 15-345

trigger.clear() ....................................................................................................................... 15-346

trigger.digin[N].clear() .......................................................................................................... 15-347

trigger.digin[N].edge ............................................................................................................ 15-347

trigger.digin[N].overrun ........................................................................................................ 15-349

trigger.digin[N].wait() ........................................................................................................... 15-350

trigger.digout[N].assert() ..................................................................................................... 15-351

trigger.digout[N].logic .......................................................................................................... 15-352

trigger.digout[N].pulsewidth ................................................................................................. 15-353

DMM6500 6½-Digit Multimeter with Scanning Reference Manual Table of contents

trigger.digout[N].release().................................................................................................... 15-354

trigger.digout[N].stimulus .................................................................................................... 15-355

trigger.ext.reset() ................................................................................................................. 15-357

trigger.extin.clear() .............................................................................................................. 15-358

trigger.extin.edge ................................................................................................................ 15-358

trigger.extin.overrun ............................................................................................................ 15-359

trigger.extin.wait() ................................................................................................................ 15-360

trigger.extout.assert() .......................................................................................................... 15-360

trigger.extout.logic ............................................................................................................... 15-361

trigger.extout.stimulus ......................................................................................................... 15-362

trigger.lanin[N].clear() .......................................................................................................... 15-364

trigger.lanin[N].edge ............................................................................................................ 15-365

trigger.lanin[N].overrun ........................................................................................................ 15-365

trigger.lanin[N].wait() ........................................................................................................... 15-366

trigger.lanout[N].assert() ..................................................................................................... 15-367

trigger.lanout[N].connect() ................................................................................................... 15-368

trigger.lanout[N].connected ................................................................................................. 15-368

trigger.lanout[N].disconnect() .............................................................................................. 15-369

trigger.lanout[N].ipaddress .................................................................................................. 15-370

trigger.lanout[N].logic .......................................................................................................... 15-371

trigger.lanout[N].protocol ..................................................................................................... 15-371

trigger.lanout[N].stimulus .................................................................................................... 15-372

trigger.model.abort() ............................................................................................................ 15-374

trigger.model.getblocklist() .................................................................................................. 15-374

trigger.model.getbranchcount() ........................................................................................... 15-375

trigger.model.initiate() ......................................................................................................... 15-376

trigger.model.load() — ConfigList ........................................................................................ 15-376

trigger.model.load() — DurationLoop .................................................................................. 15-378

trigger.model.load() — Empty ............................................................................................. 15-379

trigger.model.load() — GradeBinning .................................................................................. 15-380

trigger.model.load() — LogicTrigger .................................................................................... 15-382

trigger.model.load() — LoopUntilEvent ............................................................................... 15-383

trigger.model.load() — SimpleLoop ..................................................................................... 15-386

trigger.model.load() — SortBinning ..................................................................................... 15-388

trigger.model.pause() .......................................................................................................... 15-390

trigger.model.resume() ........................................................................................................ 15-390

trigger.model.setblock() — trigger.BLOCK_BRANCH_ALWAYS ........................................ 15-391

trigger.model.setblock() — trigger.BLOCK_BRANCH_COUNTER ..................................... 15-391

trigger.model.setblock() — trigger.BLOCK_BRANCH_DELTA ........................................... 15-392

trigger.model.setblock() — trigger.BLOCK_BRANCH_LIMIT_CONSTANT ........................ 15-394

trigger.model.setblock() — trigger.BLOCK_BRANCH_LIMIT_DYNAMIC ........................... 15-396

trigger.model.setblock() — trigger.BLOCK_BRANCH_ON_EVENT .................................... 15-397

trigger.model.setblock() — trigger.BLOCK_BRANCH_ONCE............................................. 15-399

trigger.model.setblock() — trigger.BLOCK_BRANCH_ONCE_EXCLUDED ....................... 15-399

trigger.model.setblock() — trigger.BLOCK_BUFFER_CLEAR ............................................ 15-400

trigger.model.setblock() — trigger.BLOCK_CONFIG_NEXT .............................................. 15-401

trigger.model.setblock() — trigger.BLOCK_CONFIG_PREV .............................................. 15-402

trigger.model.setblock() — trigger.BLOCK_CONFIG_RECALL .......................................... 15-403

trigger.model.setblock() — trigger.BLOCK_DELAY_CONSTANT ....................................... 15-403

trigger.model.setblock() — trigger.BLOCK_DELAY_DYNAMIC .......................................... 15-405

trigger.model.setblock() — trigger.BLOCK_DIGITAL_IO .................................................... 15-406

trigger.model.setblock() — trigger.BLOCK_LOG_EVENT .................................................. 15-407

trigger.model.setblock() — trigger.BLOCK_MEASURE_DIGITIZE ..................................... 15-408

trigger.model.setblock() — trigger.BLOCK_NOP ................................................................ 15-411

trigger.model.setblock() — trigger.BLOCK_NOTIFY ........................................................... 15-411

trigger.model.setblock() — trigger.BLOCK_RESET_BRANCH_COUNT ............................ 15-412

trigger.model.setblock() — trigger.BLOCK_WAIT ............................................................... 15-413

trigger.model.state() ............................................................................................................ 15-415

trigger.timer[N].clear() ......................................................................................................... 15-416

trigger.timer[N].count ........................................................................................................... 15-417

Table of contents DMM6500 6½-Digit Multimeter with Scanning Reference Manual

trigger.timer[N].delay ........................................................................................................... 15-419

trigger.timer[N].delaylist ...................................................................................................... 15-419

trigger.timer[N].enable ......................................................................................................... 15-421

trigger.timer[N].reset() ......................................................................................................... 15-421

trigger.timer[N].start.fractionalseconds ................................................................................ 15-422

trigger.timer[N].start.generate ............................................................................................. 15-423

trigger.timer[N].start.overrun ............................................................................................... 15-424

trigger.timer[N].start.seconds .............................................................................................. 15-425

trigger.timer[N].start.stimulus .............................................................................................. 15-425

trigger.timer[N].wait() ........................................................................................................... 15-427

trigger.tsplinkin[N].clear() .................................................................................................... 15-428

trigger.tsplinkin[N].edge ...................................................................................................... 15-428

trigger.tsplinkin[N].overrun .................................................................................................. 15-429

trigger.tsplinkin[N].wait() ...................................................................................................... 15-430

trigger.tsplinkout[N].assert() ................................................................................................ 15-430

trigger.tsplinkout[N].logic ..................................................................................................... 15-431

trigger.tsplinkout[N].pulsewidth ........................................................................................... 15-432

trigger.tsplinkout[N].release() .............................................................................................. 15-433

trigger.tsplinkout[N].stimulus ............................................................................................... 15-433

trigger.wait() ........................................................................................................................ 15-435

tsplink.group ........................................................................................................................ 15-436

tsplink.initialize() .................................................................................................................. 15-437

tsplink.line[N].mode ............................................................................................................. 15-438

tsplink.line[N].reset() ........................................................................................................... 15-438

tsplink.line[N].state .............................................................................................................. 15-439

tsplink.master ...................................................................................................................... 15-440

tsplink.node ......................................................................................................................... 15-441

tsplink.readport() ................................................................................................................. 15-441

tsplink.state ......................................................................................................................... 15-442

tsplink.writeport() ................................................................................................................. 15-442

tspnet.clear() ....................................................................................................................... 15-443

tspnet.connect() .................................................................................................................. 15-444

tspnet.disconnect() .............................................................................................................. 15-445

tspnet.execute() .................................................................................................................. 15-446

tspnet.idn() .......................................................................................................................... 15-447

tspnet.read() ........................................................................................................................ 15-448

tspnet.readavailable() .......................................................................................................... 15-449

tspnet.reset() ....................................................................................................................... 15-449

tspnet.termination() ............................................................................................................. 15-450

tspnet.timeout ...................................................................................................................... 15-451

tspnet.tsp.abort() ................................................................................................................. 15-451

tspnet.tsp.abortonconnect ................................................................................................... 15-452

tspnet.tsp.rbtablecopy() ....................................................................................................... 15-453

tspnet.tsp.runscript() ........................................................................................................... 15-454

tspnet.write() ....................................................................................................................... 15-454

upgrade.previous() .............................................................................................................. 15-455

upgrade.unit() ...................................................................................................................... 15-456

userstring.add() ................................................................................................................... 15-456

userstring.catalog() ............................................................................................................. 15-457

userstring.delete() ............................................................................................................... 15-458

userstring.get() .................................................................................................................... 15-458

waitcomplete() ..................................................................................................................... 15-459

Frequently asked questions ................................................................................... 16-1

How do I save the present state of the instrument? .......................................................... 16-2

What is the ethernet port number? .................................................................................... 16-2

What to do if the GPIB controller is not recognized? ......................................................... 16-2

DMM6500 6½-Digit Multimeter with Scanning Reference Manual Table of contents

I'm receiving GPIB timeout errors. What should I do? ....................................................... 16-3

Can I use Keysight GPIB cards with Keithley drivers? ...................................................... 16-3

What is error 5503? ............................................................................................................ 16-3

Why did my settings change? ............................................................................................ 16-3

What does –113 "Undefined header" error mean? ............................................................ 16-3

What does –410 "Query interrupted" error mean? ........................................................... 16-4

What does –420 "Query unterminated" error mean? ......................................................... 16-4

Why can't the DMM6500 read my USB flash drive? .......................................................... 16-4

How do I display the instrument's serial number? ............................................................. 16-5

How do I upgrade the firmware? ........................................................................................ 16-5

Where can I find updated drivers? ..................................................................................... 16-6

How do I check the USB driver for the device? ................................................................. 16-6

Why are there dashes on the front-panel display? ............................................................ 16-8

Why doesn't the DMM6500 recognize my switch card? .................................................... 16-9

Where is the current fuse located? .................................................................................... 16-9

Where can I find the EU Declaration of Conformity? ......................................................... 16-9

What VISA resource name is required? ............................................................................. 16-9

Is the front and rear panel TERMINALS switch programmable? ..................................... 16-10

Are the channels on the scanner card isolated from earth ground? ................................ 16-10

Getting readings on scale in four-wire ohms. .................................................................. 16-10

Is the thermistor sensor for temperature two-wire or four-wire? ...................................... 16-10

What is offset compensation? .......................................................................................... 16-10

What are the values of test current for the different ranges in resistance? ..................... 16-11

What are the current shunt resistors? .............................................................................. 16-11

What happens when thermocouple open detect is enabled and the thermocouple is open?16-11

What is a configuration list? ............................................................................................. 16-12

How do I change the command set? ............................................................................... 16-12

How do I obtain the fastest data rate? ............................................................................. 16-13

Can I close one channel and keep it closed while other channels are scanned? ........... 16-13

I see a command that is not in the manual. What is it? ................................................... 16-14

Can the DMM6500 have multiple user-defined RTDs in a scan list? .............................. 16-14

What rack kit is required for mounting? ........................................................................... 16-14

Which rack kit is required to rack-mount a DMM6500 and 2280 power supply side by side?16-14

Table of contents DMM6500 6½-Digit Multimeter with Scanning Reference Manual

Next steps ............................................................................................................... 17-1

Additional DMM6500 information ....................................................................................... 17-1

Common commands ................................................................................................ A-1

Introduction .......................................................................................................................... A-1

*CLS .......................................................................................................................................... A-2

*ESE ......................................................................................................................................... A-3

*ESR? ....................................................................................................................................... A-4

*IDN? ........................................................................................................................................ A-5

*LANG ....................................................................................................................................... A-6

*OPC ......................................................................................................................................... A-7

*RST ......................................................................................................................................... A-7

*SRE ......................................................................................................................................... A-8

*STB? ........................................................................................................................................ A-9

*TRG ......................................................................................................................................... A-9

*TST? ...................................................................................................................................... A-10

*WAI ........................................................................................................................................ A-10

Status model ............................................................................................................. B-1

Overview .............................................................................................................................. B-1

Standard Event Register ........................................................................................................... B-3

Programmable status register sets ............................................................................................ B-4

Status Byte Register ................................................................................................................. B-8

Queues ................................................................................................................................... B-10

Serial polling and SRQ ....................................................................................................... B-11

Programming enable registers ........................................................................................... B-11

Reading the registers ......................................................................................................... B-12

Understanding bit settings ................................................................................................. B-12

Clearing registers ............................................................................................................... B-13

Status model programming examples ............................................................................... B-14

SRQ on error ........................................................................................................................... B-14

SRQ when reading buffer becomes full ................................................................................... B-14

Performance verification .......................................................................................... C-1

Introduction .......................................................................................................................... C-1

Factory service ..................................................................................................................... C-2

Verification test requirements .............................................................................................. C-2

Environmental conditions .......................................................................................................... C-2

Warmup period .......................................................................................................................... C-2

Line power................................................................................................................................. C-2

Recommended test equipment ................................................................................................. C-3

Calibration verification limits ................................................................................................ C-3

Example reading limit calculation .............................................................................................. C-4

Calculating resistance reading limits ......................................................................................... C-4

Performing the verification test procedures ......................................................................... C-5

DMM6500 6½-Digit Multimeter with Scanning Reference Manual Table of contents

Test summary ........................................................................................................................... C-5

Test considerations ................................................................................................................... C-5

Front-panel calibration verification ....................................................................................... C-6

DC voltage verification .............................................................................................................. C-6

AC voltage verification .............................................................................................................. C-9

Digitize voltage verification ...................................................................................................... C-13

Frequency verification ............................................................................................................. C-16

Simulated thermocouple Type J temperature verification ....................................................... C-17

Simulated RTD temperature verification ................................................................................. C-20

Resistance verification ............................................................................................................ C-24

DC current verification ............................................................................................................. C-27

Digitize current verification ...................................................................................................... C-32

AC current verification ............................................................................................................. C-34

Capacitance verification .......................................................................................................... C-37

Verifying zero values using a 4-wire short ............................................................................... C-39

Rear-panel verification ....................................................................................................... C-41

DC current 10 A range verification .......................................................................................... C-41

Digitize current 10 A range verification .................................................................................... C-43

AC current 10 A verification..................................................................................................... C-45

Index ............................................................................................................................. 1

In this section:

Welcome ...................................................................................1-1

Extended warranty ....................................................................1-1

Contact information ...................................................................1-1

Organization of manual sections ...............................................1-2

Capabilities and features ..........................................................1-3

General ratings .........................................................................1-3

Section 1

Introduction

Welcome

The Model DMM6500 is a modern bench/system digital multimeter that delivers more measurement functionality and best-in-class measurement insight. The most recognizable feature of the DMM6500 is the large five-inch capacitive touch display that makes it easy to observe, interact with, and explore measurements with pinch and zoom simplicity. Beyond the display technology, the analog measurement performance is top notch, delivering 25 PPM basic DCV accuracy for one year and 30 PPM for two years, potentially allowing you to extend your calibration cycles.

No need to pay more to get additional measurement capabilities — the DMM6500 comes standard with all the measurement functions you would expect in a bench multimeter. Measurement functions include capacitance, temperature (RTD, thermistor, and thermocouple), diode test with variable current sources, and up to 1 MS/s digitizing are now standard.

You can use the digitizing function for voltage or current and is especially useful in capturing transient anomalies or to help profile power events such as the operating states of today’s battery-operated devices. Current and voltage can be digitized with a programmable 1 MS/s 16-bit digitizer, making it possible to acquire waveforms without the need of a separate instrument.

Extended warranty

The DMM6500 is a 6.5 digit bench/system digital multimeter with a 10-channel scan option.

Additional years of warranty coverage are available on many products. These valuable contracts protect you from unbudgeted service expenses and provide additional years of protection at a fraction of the price of a repair. Extended warranties are available on new and existing products. Contact your local Keithley Instruments office, sales partner, or distributor for details.

Contact information

If you have any questions after you review the information in this documentation, please contact your local Keithley Instruments office, sales partner, or distributor. You can also call the corporate headquarters of Keithley Instruments (toll-free inside the U.S. and Canada only) at 1-800-935-5595, or from outside the U.S. at +1-440-248-0400. For worldwide contact numbers, visit tek.com/keithley.

Section 1: Introduction DMM6500 6½-Digit Multimeter with Scanning Reference Manual

1-2 DMM6500-901-01 Rev. A/April 2018

Organization of manual sections

The information in this manual is organized into the following major categories:

• Instrument description: Describes features and functions, as well as the front panel interface.

• General operation: Describes the components of the instrument and basic operation.

• Making measurements: Describes best practices and recommended procedures that can

increase measurement speed, accuracy, and sensitivity.

• Switching and scanning: Describes how to install, connect, and control scanner cards.

• Reading buffers: Describes how reading buffers provide statistics, including average, minimum,

maximum, and standard deviation.

• Graphing: Describes how the graphing features allow you to view your measurement data graphically. You can view minimums and maximums, view averages, determine deltas, and view the values of specific data points.

• Triggering: Describes triggering options available including command interface triggering, timers, analog trigger, and event blenders.

• TSP-Link and TSP-Net: Describes TSP-Link®, a high-speed trigger synchronization and communication bus that you can use to connect multiple instruments in a master and subordinate configuration.

• Maintenance: Contains information about instrument maintenance, including line fuse replacement and firmware upgrades.

• Introduction to SCPI commands: Describes how to control the instrument using SCPI commands.

• SCPI command reference: Contains programming notes and an alphabetical listing of all SCPI commands available for the DMM6500.

• Introduction to TSP operation: Describes the basics of using Test Script Processor (TSP®) commands to control the instrument and describes how to control the instrument using TSP commands and Test Script Builder (TSB®) software, TSP-Link system expansion, and TSP-Net.

• TSP command reference: Contains programming notes and an alphabetical listing of all TSP commands available for the DMM6500.

• Common commands: Contains descriptions of IEEE Std 488.2 common commands.

• Status model: Describes the DMM6500 status model.

• Performance verification: Describes the procedures used to verify instrument accuracy as

stated in the instrument’s one-year accuracy specifications.

• Frequently asked questions: Contains information that answers commonly asked questions.

• Next steps: Contains sources of additional information.

DMM6500 6½-Digit Multimeter with Scanning Reference Manual Section 1: Introduction

DMM6500-901-01 Rev. A/April 2018 1-3

Capabilities and features

General ratings

The DMM6500 instrument's general ratings and connections are listed in the following table.

In this section:

Dimensions ...............................................................................2-1

Bumpers and extension feet .....................................................2-3

Installing a scanner card ...........................................................2-4

Instrument power ......................................................................2-4

Remote communications interfaces ..........................................2-5

Determining the command set you will use .............................2-29

System information .................................................................2-30

Section 2

Installation

Dimensions

The following figures show the mounting screw locations and the dimensions of the instrument with and without the bumpers.

The following figure shows the mounting screw locations and dimensions. Mounting screws must be #6-32 with a maximum screw length of 11.12 mm (0.438 in.) or 7/16 in. The dimensions shown are typical for both sides of the instrument.

Figure 1: DMM6500 mounting screw locations and dimensions

The following figures show the dimensions with the bumpers installed.

Section 2: Installation DMM6500 6½-Digit Multimeter with Scanning Reference Manual

2-2 DMM6500-901-01 Rev. A/April 2018

Figure 2: DMM6500 dimensions with bumpers installed

Figure 3: DMM6500 dimensions side with bumpers installed

The following figures show the dimensions when the handle and bumpers have been removed.

Figure 4: DMM6500 dimensions, bumpers removed

DMM6500 6½-Digit Multimeter with Scanning Reference Manual Section 2: Installation

DMM6500-901-01 Rev. A/April 2018 2-3

Figure 5: DMM6500 side dimensions with bumpers removed

Bumpers and extension feet

The DMM6500 has front and rear bumpers for using the instrument on a benchtop. The instrument also features extension feet that you can extend or retract for easier front-panel viewing.

Removing the bumpers

You can remove the bumpers on the DMM6500 if you want to mount the instrument in a rack.

If you remove the bumpers, be sure to store them for future benchtop use.

To remove the bumpers:

1. Remove all connections to the instrument.

2. Grasp the front bumper on each side of the DMM6500 and gently pull it toward you until the bumper comes off the instrument.

3. Repeat for the rear bumper.

Adjusting the tilt feet

You can adjust the tilt feet on the DMM6500 for easier front-panel viewing, or to install the instrument in a rack.

Removing the tilt feet for rack mounting

You can remove the tilt feet on the DMM6500 to mount the instrument in a rack.

If you remove the tilt feet, be sure to store them for future benchtop use.

Section 2: Installation DMM6500 6½-Digit Multimeter with Scanning Reference Manual

2-4 DMM6500-901-01 Rev. A/April 2018

Remove all connections and the power cord from the DMM6500 before you begin.

To remove the tilt feet:

1. Squeeze the sides of one tilt foot near where it attaches to the instrument and twist the foot until it detaches.

2. Repeat the previous step for the other side of the DMM6500.

3. Store the tilt feet for future use.

Installing a scanner card

Refer to the instructions for your scanner card for installation information.

Instrument power

Follow the steps below to connect the DMM6500 to line power and turn on the instrument. The DMM6500 operates from a line voltage of 100 V to 240 V at a frequency of 50 Hz, 60 Hz, or 400 Hz. It automatically senses line frequency. Make sure the operating voltage in your area is compatible.

The fuse is set to the expected voltage at the factory. Make sure that the correct line voltage is displayed on the power module. See Line voltage verification (on page 11-3) for more information.

You must turn on the DMM6500 and allow it to warm up for at least 30 minutes to achieve rated accuracies.

Operating the instrument on an incorrect line voltage may cause damage to the instrument, possibly voiding the warranty.

The power cord supplied with the DMM6500 contains a separate protective earth (safety ground) wire for use with grounded outlets. When proper connections are made, the instrument chassis is connected to power-line ground through the ground wire in the power cord. In the event of a failure, not using a properly grounded protective earth and grounded outlet may result in personal injury or death due to electric shock.

Do not replace detachable mains supply cords with inadequately rated cords. Failure to use properly rated cords may result in personal injury or death due to electric shock.

Connect the power cord

When you connect the power cord, the instrument may power on, depending on the state of the frontpanel POWER switch when the power cord was removed.

To connect the power cord:

1. Connect the female end of the supplied power cord to the AC receptacle on the rear panel.

2. Connect the male end of the power cord to a grounded AC outlet.

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Turn the DMM6500 on or off

Hazardous voltages may be present on all output and guard terminals. To prevent electrical shock that could cause injury or death, remove power from the instrument or test system and discharge any energy storage components (for example, capacitors or cables) before changing any connections that might allow contact with an uninsulated conductor.

On some sensitive or easily damaged devices under test (DUTs), the instrument power-up or power-down sequence can apply transient signals to the DUT that may affect or damage it.

When testing this type of DUT, do not make final connections to it until the instrument has completed its power-up sequence and is in a known operating state. Disconnect it from the instrument before turning the instrument off.

To prevent any human contact with a live conductor, connections to the DUT must be fully insulated and the final connections to the DUT must only use safety-rated safety jack socket connectors that do not allow bodily contact.

To turn a DMM6500 on:

1. Disconnect any devices under test (DUTs) from the DMM6500.

2. Press and hold the front-panel POWER switch to place it in the on position.

The instrument displays a status bar as the instrument powers on. The Home screen is displayed when power on is complete.

To turn a DMM6500 off:

1. Press and hold the front-panel POWER switch to place it in the off position.

Remote communications interfaces

You can choose from one of several communication interfaces to send commands to and receive responses from the DMM6500.

The instrument automatically detects the type of communications interface (LAN, USB, GPIB, RS-232, or TSP-Link) when you connect to the respective port on the rear panel of the instrument. The GPIB, RS-232, and TSP-Link options require an optional accessory card. In most cases, you do not need to configure anything on the instrument. In addition, you do not need to reboot if you change the type of interface that is connected.

You can only use one communications interface to control the DMM6500 at a time. The USB connection takes precedence over LAN connections. For other communications interfaces, the first interface on which the instrument receives a message takes control of the instrument. If another interface sends a message, that interface can take control of the instrument. You may need to enter a password to change the interface, depending on the access mode.

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Supported remote interfaces

You can choose from one of several communication interfaces to send commands to and receive responses from the DMM6500. The DMM6500 supports the following remote interfaces:

• GPIB: IEEE-488 instrumentation general purpose interface bus

• Ethernet: Local-area-network communications

• RS-232: Serial communication data standard

• USB: Type B USB port

• TSP-Link: A high-speed trigger synchronization and communications bus that test system

builders can use to connect multiple instruments in a master-and-subordinate configuration. For details about TSP-Link, see TSP-Link System Expansion Interface (on page 10-1).

The DMM6500 can be controlled from only one communication interface at a time.

The GPIB, RS-232, and TSP-Link interfaces require an optional communications accessory card to be installed in the instrument. Accessory cards include the KTTI-GPIB, KTTI-TSP, and KTTI-RS232.

Figure 6: DMM6500 remote interface connections

Comparison of the communications interfaces

The following topics discuss some of the advantages and disadvantages of the communications interfaces that are available for the DMM6500.

Simplicity

The GPIB interface is the simplest configuration. Connections are simple, and the only necessary software configuration is setting the instrument address.

An ethernet network is a simple configuration if you can use the automatic settings. It is more complicated if you need to set it up manually. If you must set up your ethernet network manually, you need some knowledge of networking. In addition, your corporate information technology (IT) department may have restrictions that prevent using an ethernet network.

A USB interface is also simple to set up. However, it requires an instrument-specific device driver to communicate with the instrument. This can limit the operating systems that are available for use with the instrument.

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Triggering

The GPIB interface provides the fastest, most consistent triggering. It has the lowest trigger latency of the available communications types. Trigger latency is the time that it takes the trigger to go from the computer to the instrument. GPIB also allows you to send triggers to multiple instruments simultaneously.

If you use a USB interface, it is difficult to synchronize triggers that are sent to multiple instruments. For applications that require synchronized triggering, you must use digital I/O. The trigger latency with a USB interface is higher than latency with a GPIB interface, but it is lower and more consistent than latency with an ethernet interface.

Transfer rate

Of the available interfaces, USB has the fastest transfer rate, followed by the ethernet and GPIB interfaces. The GPIB interface, however, offers the most consistent transfer rate.

Instrument naming

Names for instruments that are named through NI-VISATM are in a human-readable format. USB instrument names are not intended to be human-readable.

Distance and instrument limitations

For GPIB and USB interfaces, the cabling distances between the controller and instrument or hub are limited to 30 feet. In a system connected with GPIB or USB, you can have up to 15 instruments attached to each controller.

The distances for ethernet interfaces are unlimited if the ethernet address of the instrument and ports for the various services it uses are visible publicly (for example, port 80 for web service). If you are using an ethernet interface, you can communicate with an instrument anywhere in the world. In a system that is connected through ethernet, the number of instruments you can attach to each controller is only limited by the controller and the connections available on that controller.

Expense

The GPIB interface is the most expensive method because of the costs for cabling and related equipment. Ethernet and USB connections are inexpensive options because most computers have built-in ethernet and USB ports. In addition, cables and hubs for ethernet and USB interfaces are inexpensive.

GPIB setup

This topic contains information about GPIB standards, bus connections, and primary address selection.

The DMM6500 GPIB interface is IEEE Std 488.1 compliant and supports IEEE Std 488.2 common commands and status model topology.

You can have up to 15 devices connected to a GPIB interface, including the controller. The maximum cable length is the lesser of either:

• The number of devices multiplied by 2 m (6.5 ft)

• 20 m (65.6 ft)

You may see erratic bus operation if you ignore these limits.

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GPIB communications require the KTTI-GPIB communications accessory card to be installed in the instrument.

Install the GPIB driver software

Check the documentation for your GPIB controller for information about where to acquire drivers. Keithley Instruments also recommends that you check the website of the GPIB controller for the latest version of drivers or software.

It is important that you install the drivers before you connect the hardware. This prevents associating the incorrect driver to the hardware.

Install the GPIB cards in your computer

Refer to the documentation from the GPIB controller vendor for information about installing the GPIB controllers.

Connect the GPIB cables to your instrument

To connect a DMM6500 to the GPIB interface, use a cable equipped with standard GPIB connectors, as shown below.

Figure 7: GPIB connector

To allow many parallel connections to one instrument, stack the connectors. Each connector has two screws on it to ensure that connections remain secure. The figure below shows a typical connection diagram for a test system with multiple instruments.

To avoid possible mechanical damage, stack no more than three connectors on any one instrument. To minimize interference caused by electromagnetic radiation, use only shielded GPIB cables. Contact Keithley Instruments for shielded cables.

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Figure 8: DMM6500 Instrument GPIB connections

To connect the GPIB cable to the instrument:

1. Align the cable connector with the connector on the DMM6500 rear panel.

2. Attach the connector. Tighten the screws securely but do not overtighten them.

3. Connect any additional connectors from other instruments, as required for your application.

4. Make sure that the end of the cable is properly connected to the controller.

Set the GPIB address

The default GPIB address is 16. You can set the address to any address from 1 to 30 if it is unique in the system. This address cannot conflict with an address that is assigned to another instrument or to the GPIB controller.

GPIB controllers are usually set to 0 or 21. To be safe, do not configure any instrument to have an address of 21. To change the controller address, see the documentation for the controller.

The address is saved in nonvolatile memory, so it does not change when a reset is done or when the power is turned off and then turned on again.

From the front panel:

1. Press the MENU key.

2. Under System, select Communication. The SYSTEM COMMUNICATIONS window opens.

3. Select the GPIB tab.

4. Next to Address, select the number. The GPIB Address dialog box is displayed.

5. Enter the address.

6. Select OK.

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Effect of GPIB line events on DMM6500

The GPIB has control lines that allow predefined information, called events, to be transferred quickly. The following information lists some of the GPIB line events and how the DMM6500 reacts to them.

DCL

This event clears the GPIB interface. When the DMM6500 detects a device clear (DCL) event, it does the following:

• Clears the input buffer, output queue, and command queue

• Cancels deferred commands

• Clears any command that prevents the processing of any other device command

A DCL event does not affect instrument settings and stored data.

GET

The group execute trigger (GET) command is a GPIB trigger that triggers the instrument to take readings from a remote interface.

GTL

When the instrument detects the go to local (GTL) event, it exits remote operation and enters local operation. When the instrument is operating locally, you can control the instrument from the front panel.

IFC

When the instrument detects an interface clear (IFC) event, the instrument enters the talker and the listener idle state. When the instrument is in this state, the GPIB  indicators on the front panel are not displayed.

An IFC event does not interrupt the transfer of command messages to and from the instrument. However, messages are suspended. If the transfer of a response message from the instrument is suspended by an IFC event, the transfer resumes when the instrument is addressed to talk. If transfer of a command message to the instrument is suspended by an IFC event, the rest of the message can be sent when the instrument is addressed to listen.

LLO

When the instrument detects a local-lockout (LLO) event, most of the front-panel controls are disabled. This event disables all front-panel controls and POWER switches.

To enable the front panel, use the go-to-local (GTL) event.

REN

When the instrument detects the remote enable (REN) event, it is set up for remote operation. The instrument is not placed in remote mode when it detects the REN event; the instrument must be addressed to listen after the REN event before it goes into remote mode.

You should place the instrument into remote mode before you attempt to program it using a remote interface.

SDC

The selective device clear (SDC) event is similar to the device clear (DCL) event. However, the SDC event clears the interface for an individual instrument instead of clearing the interface of all instruments.

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When the DMM6500 detects an SDC event, it will do the following for the selected instrument:

• Clears the input buffer, output queue, and command queue

• Cancels deferred commands

• Clears any command that prevents the processing of any other device command

An SDC event does not affect instrument settings and stored data.

SPE, SPD

When the instrument detects the serial polling enable (SPE) and serial polling disable (SPD) events, it sends the status byte of the instrument. This contains the serial poll byte of the instrument.

The serial poll byte contains information about internal functions. See the Status model (on page B-1) for detail. Generally, the serial polling sequence is used by the controller to determine which of several instruments has requested service with the SRQ line.

LAN communications

You can communicate with the instrument using a local area network (LAN). The LAN interface can be used to build flexible test systems that include web access. This section provides an overview of LAN communications for the DMM6500.

When you connect using a LAN, you can use a web browser to access the internal web page of the instrument and change some of the instrument settings.

The DMM6500 is a version 1.5 LXI Device Specification 2016 compliant instrument that supports TCP/IP and complies with IEEE Std 802.3 (ethernet LAN). There is one LAN port (located on the rear panel of the instrument) that supports full connectivity on a 10 Mbps or 100 Mbps network. The DMM6500 automatically detects the speed.

The DMM6500 also supports Multicast DNS (mDNS) and DNS Service Discovery (DNS-SD), which are useful on a LAN with no central administration.

Contact your network administrator to confirm your specific network requirements before setting up a LAN connection. If you have problems setting up the LAN, refer to LAN troubleshooting suggestions (on page 2-18).

LAN cable connection

You can use any standard LAN crossover cable (RJ-45, male to male) or straight-through cable to connect your equipment. The instrument automatically senses which cable you have connected.

The following figure shows the location of the LAN port on the rear panel of the instrument. Connect the LAN cable between this connection and the LAN port on the computer.

Figure 9: DMM6500 LAN port

You can connect the instrument to the LAN in a one-to-one, one-to-many, two network cards, or enterprise configuration, as described in the following topics.

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One-to-one connection

With most instruments, a one-to-one connection is done only when you are connecting a single instrument to a single network interface card.

A one-to-one connection using a network crossover cable connection is similar to a typical RS-232 hookup using a null modem cable. The crossover cable has its receive (RX) and transmit (TX) lines crossed to allow the receive line input to be connected to the transmit line output on the network interfaces.

Figure 10: One-to-one connection with a crossover cable

The DMM6500 supports Auto-MDIX and can use either normal LAN CAT-5 cables (patch) or crossover cables. The instrument automatically adjusts to support either cable.

One-to-many connection

With a LAN hub, a single network interface card can be connected to as many instruments as the hub can support. This requires straight-through network (not crossover) cables for hub connections.

The advantage of this method is easy expansion of measurement channels when the test requirements exceed the capacity of a single instrument. With only the instruments connected to the hub, this is an isolated instrumentation network. However, with a corporate network attached to the hub, the instruments become part of the larger network.

Figure 11: One-to-many connection using a network hub or switch

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Two network card connection

If you need to connect independent corporate and instrumentation networks, two network interface cards are required in the computer controller. Though the two networks are independent, stations on the corporate network can access the instruments, and the instruments can access the corporate network, using the same computer.

This configuration resembles a GPIB setup in which the computer is connected to a corporate network, but also has a GPIB card in the computer to communicate with instruments.

Figure 12: Two network card connection

Instrumentation connection to enterprise routers or servers

This connection uses an existing network infrastructure to connect instruments to the computer controller. In this case, you must get the network resources from the network administrator.

Usually, the instruments are kept inside the corporate firewall, but the network administrator can assign resources that allow them to be outside the firewall. This allows instruments to be connected to the Internet using appropriate security methods. Data collection and distribution can be controlled from virtually any location.

Figure 13: Instrumentation connection to enterprise routers or servers

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Set up LAN communications on the instrument

Check communication settings

Before setting up the LAN configuration, you can check the communications settings on the instrument without making any changes.

This section describes how to set up manual or automatic LAN communications on the instrument.

To check communications settings on the instrument:

1. Press the MENU key.

2. Under System, select Communication. The SYSTEM COMMUNICATIONS window opens.

3. Select one of the tabs (GPIB, USB, LAN, RS-232, or TSP-Link) to see the settings for that interface.

4. Press the EXIT key to leave the SYSTEM COMMUNICATIONS window without making any changes.

Set up automatic LAN configuration

If you are connecting to a LAN that has a DHCP server or if you have a direct connection between the instrument and a host computer, you can use automatic IP address selection.

If you select Auto, the instrument attempts to get an IP address from a DHCP server. If this fails, it reverts to an IP address in the range of 169.254.1.0 through 169.254.254.255.

Both the host computer and the instrument should be set to use automatic LAN configuration. Though it is possible to have one set to manual configuration, it is more complicated to set up.

To set up automatic IP address selection using the front panel:

1. Press the MENU key.

2. Under System, select Communication.

3. Select the LAN tab.

4. For TCP/IP Mode, select Auto.

5. Select Apply Settings to save your settings.

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Set up manual LAN configuration

If necessary, you can set the IP address on the instrument manually.

You can also enable or disable the DNS settings and assign a host name to the DNS server.

Contact your corporate information technology (IT) department to secure a valid IP address for the instrument when placing the instrument on a corporate network.

The instrument IP address has leading zeros, but the computer IP address cannot.

To set up manual IP address selection on the instrument:

1. Press the MENU key.

2. Under System, select Communication.

3. Select the LAN tab.

4. For TCP/IP Mode, select Manual.

5. Enter the IP Address.

6. Enter the Gateway address.

7. Enter the Subnet mask.

8. Select Apply Settings to save your settings.

Set up LAN communications on the computer

This section describes how to set up the LAN communications on your computer.

Do not change your IP address without consulting your system administrator. If you enter an incorrect IP address, it can prevent your computer from connecting to your corporate network or it may cause interference with another networked computer.

Record all network configurations before modifying any existing network configuration information on the network interface card. Once the network configuration settings are updated, the previous information is lost. This may cause a problem reconnecting the host computer to a corporate network, particularly if DHCP is disabled.

Be sure to return all settings to their original configuration before reconnecting the host computer to a corporate network. Contact your system administrator for more information.

Wait for the LAN status indicator to turn green

Make sure that your DMM6500 is connected to the network by confirming that your instrument was assigned an IP address.

To verify the LAN connection:

1. Press the MENU key.

2. Under System, select Communication.

3. Select the LAN tab.

A green LAN status indicator on the lower left of the LAN tab confirms that your instrument was assigned an IP address.

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Use the LXI Discovery Tool

When lit, indicates that the LAN port is connected to a 100 Mbps network

When blinking, indicates that the port is receiving or sending information

LAN protocols

Port number

Protocol

Telnet

1024

VXI-11

5025

Raw socket

5030

Dead socket termination

To find the IP address of the DMM6500, use the LXI Discovery Tool

LAN status LEDs

The figure below illustrates the two status light emitting diodes (LEDs) that are on the LAN port of the instrument. The table below the figure provides explanations of the LED states.

Figure 14: DMM6500 LAN status LEDs

If neither LED is lit, the network is not connected.

LAN interface protocols

You can use one of following LAN protocols to communicate with the DMM6500:

• Telnet

• VXI-11

• Raw socket

You can also use a dead socket termination port to troubleshoot communication problems.

You can only use one remote interface at a time. Although multiple ethernet connections to the instrument can be opened, only one can be used to control the instrument at a time.

The port numbers for the LAN protocols and dead socket termination are listed in the following table.

Raw socket connection

All Keithley instruments that have LAN connections support raw socket communication. This means that you can connect to the TCP/IP port on the instrument and send and receive commands. A programmer can easily communicate with the instrument using the Winsock API on computers with the Microsoft® Windows® operating system or using the Berkeley Sockets API on Linux® or Apple® computers.

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VXI-11 connection

This remote interface is similar to GPIB and supports message boundaries, serial poll, and service requests (SRQs). A VXI-11 driver or NI-VISATM software is required. Test Script Builder (TSB) uses NI-VISA and can be used with the VXI-11 interface. You can expect a slower connection with this protocol.

Telnet connection

The Telnet protocol is similar to raw socket, and can be used when you need to interact directly with the instrument. Telnet is often used for debugging and troubleshooting. You will need a separate Telnet program to use this protocol.

The DMM6500 supports the Telnet protocol, which you can use over a TCP/IP connection to send commands to the instrument. You can use a Telnet connection to interact with scripts or send real-time commands.

Dead socket connection

The dead socket termination (DST) port is used to terminate all existing ethernet connections. A dead socket is a socket that is held open by the instrument because it has not been properly closed. This most often happens when the host computer is turned off or restarted without first closing the socket. This port cannot be used for command and control functions.

Use the dead socket termination port to manually disconnect a dead session on any open socket. All existing ethernet connections will be terminated and closed when the connection to the dead socket termination port is closed.

Reset LAN settings

You can reset the password and the LAN settings with the LXI LAN Reset function.

To reset the DMM6500 LAN settings:

1. Press the MENU key.

2. Under System, select Communication.

3. Select the LAN tab.

4. Select LXI LAN Reset. You are prompted to confirm.

5. Select Yes.

A green LAN status LED indicator on the lower left confirms that your instrument was assigned an IP address. Note that it may take several minutes for the computer and instrument to establish a connection.

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LAN troubleshooting suggestions

If you are unable to connect to the web interface of the instrument, check the following items:

• The network cable is in the LAN port on the rear panel of the instrument, not one of the TSP-Link® ports.

• The network cable is in the correct port on the computer. The LAN port of a laptop may be disabled when the laptop is in a docking station.

• The setup procedure used the configuration information for the correct ethernet card.

• The network card of the computer is enabled.

• The IP address of the instrument is compatible with the IP address on the computer.

• The subnet mask address of the instrument is the same as the subnet mask address of the

computer.

• There is a USB cable attached between the instrument and your computer. USB communications take precedence over LAN.

You can also try restarting the computer and the instrument.

To restart the instrument:

1. Turn the instrument's power off, and then on.

2. Wait at least 60 seconds for the network configuration to be completed.

To set up LAN communications

1. Press the MENU key.

2. Under System, select Communication.

3. Select the LAN tab.

4. Verify the settings.

USB communications

To use the rear-panel USB port, you must have the Virtual Instrument Software Architecture (VISA) layer on the host computer. See How to install the Keithley I/O Layer (on page 2-28) for more information.

VISA contains a USB-class driver for the USB Test and Measurement Class (USBTMC) protocol that,

If the above actions do not correct the problem, contact your system administrator.

once installed, allows the Microsoft Windows operating system to recognize the instrument.

When you connect a USB device that implements the USBTMC or USBTMC-USB488 protocol to the computer, the VISA driver automatically detects the device. Note that the VISA driver only automatically recognizes USBTMC and USBTMC-USB488 devices. It does not recognize other USB devices, such as printers, scanners, and storage devices.

In this section, "USB instruments" refers to devices that implement the USBTMC or USBTMC-USB488 protocol.

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Using USB

To communicate from a computer to the instrument you need a USB cable with a USB Type B connector end and a USB type A connector end. You need a separate USB cable for each instrument you plan to connect to the computer at the same time using the USB interface.

To use a USB connection:

1. Connect the Type A end of the cable to the host computer.

2. Connect the Type B end of the cable to the instrument.

3. Turn the instrument on.

When the host computer detects the new USB connection, the Found New Hardware Wizard starts.

4. On the "Can Windows connect to Windows Update to search for software?" dialog box, click No, and then click Next.

5. On the "USB Test and Measurement device" dialog box, click Next, and then click Finish.

Communicate with the instrument

For the instrument to communicate with the USB device, you must use NI-VISATM. VISA requires a resource string in the following format to connect to the correct USB instrument:

USB0::0x05e6::0x6500::[serial number]::INSTR

Where:

• 0x05e6: The Keithley vendor ID

• 0x6500: The instrument model number

• [serial number]: The serial number of the instrument (the serial number is also on the rear

panel)

• INSTR: Use the USBTMC protocol

To determine these parameters, you can run the Keithley Configuration Panel, which automatically detects all instruments connected to the computer.

If you installed the Keithley I/O Layer, you can access the Keithley Configuration Panel through the Microsoft® Windows® Start menu.

If you have a USB connection, you cannot switch to a LAN connection while the USB is connected. USB takes precedence over LAN.

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To use the Keithley Configuration Panel to determine the VISA resource string:

1. Click Start > Keithley Instruments > Keithley Configuration Panel. The Select Operation dialog box is displayed.

Figure 15: Select Operation dialog box

2. Select Add.

3. Select Next. The Select Communication Bus dialog box is displayed.

Figure 16: Select Communication Bus dialog box

4. Select USB.

5. Click Next. The Select Instrument Driver dialog box is displayed.

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Figure 17: Select Instrument Driver dialog box

6. Select Auto-detect Instrument Driver - Model.

7. Click Next. The Configure USB Instrument dialog box is displayed with the detected instrument VISA resource string visible.

8. Click Next. The Name Virtual Instrument dialog box is displayed.

Figure 18: Name Virtual Instrument dialog box

9. In the Virtual Instrument Name box, enter a name that you want to use to refer to the instrument.

10. Select Finish.

11. Select Cancel to close the Wizard.

12. Save the configuration. From the Keithley Configuration Panel, select File > Save.

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Verify the instrument through the Keithley Communicator:

1. Click Start > Keithley Instruments > Keithley Communicator.

2. Select File > Open Instrument to open the instrument you just named.

Figure 19: Keithley Communicator Open an Instrument

3. Click OK.

4. Send a command to the instrument and see if it responds.

If you have a full version of NI-VISA on your system, you can run NI-MAX or the VISA Interactive Control utility. See the National Instruments documentation for information.

RS-232

If you have a KTTI-RS232 Communication and Digital I/O Accessory card installed in the instrument, you can communicate with the instrument using an RS-232 interface.

For detail on using an RS-232 interface, refer to the documentation for the KTTI-RS232 card.

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DMM6500 web interface

The DMM6500 web interface allows you to make settings and control your instrument through a web page. The web page includes:

• Instrument status.

• The instrument model, serial number, firmware revision, and the last LXI message.

• An ID button to help you locate the instrument.

• A virtual front panel and command interface that you can use to control the instrument.

• Download access to a CSV file that contains reading buffer data.

• Administrative options and LXI information.

The instrument web page resides in the firmware of the instrument. Changes you make through the web interface are immediately made in the instrument.

When the LAN and instrument establish a connection, you can open the web page for the instrument.

To access the web interface:

1. Open a web browser on the host computer.

2. Enter the IP address of the instrument in the address box of the web browser. For example, if the instrument IP address is 192.168.1.101, enter 192.168.1.101 in the browser address box.

3. Press Enter on the computer keyboard to open the instrument web page.

4. If prompted, enter a user name and password. The default is admin for both.

If the web page does not open in the browser, see LAN troubleshooting suggestions (on page 2-18).

To find the IP Address of the instrument, press the Communications indicator in the upper left corner of the Home screen.

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Web interface Home page

Figure 20: DMM6500 web interface

The Home page of the instrument provides information about the instrument. It includes:

• The instrument model number, manufacturer, serial number, and firmware revision number.

• The TCP Raw Socket number and Telnet Port number.

• The last LXI message. The history link opens the LXI Home page (on page 2-25).

• The ID button, which allows you to identify the instrument. Refer to Identify the instrument (on

page 2-25).

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Identify the instrument

If you have a bank of instruments, you can select the ID button to determine which one you are communicating with.

Before trying to identify the instrument, make sure you have a remote connection to the instrument.

To identify the instrument:

1. On the Home page, select the ID button. The button turns green and the LAN status indicator on the instrument blinks.

2. Select the ID button again to return the button to its original color and return the LAN status indicator to steady on.

LXI Home page

The LXI Home page displays instrument information, including the host name, MAC address, and VISA resource string. You cannot change the information from this page.

You can use the host name instead of the IP address to connect to the instrument.

It also includes the ID button, which you can use to identify the instrument. See Identify the

instrument (on page 2-25).

Change the IP configuration through the web interface

You can change the LAN settings, such as IP address, subnet mask, gateway, and DNS address, through the web page of the instrument.

If you change the IP address through the web page, the web page tries to redirect to the IP address that is configured in the instrument. In some cases, this may fail. This generally happens if you switch from IP address assignment that uses a static address to IP address assignment that uses a DHCP server. If this happens, you need to revert to either using the front panel to set the IP address or use an automatic discovery tool to determine the new IP address.

You can also change the IP configuration through the front panel or with TSP and SCPI commands. See Set up LAN communications on the instrument (on page 2-14) for information.

To change the IP configuration using the instrument web page:

1. Access the internal web page as described in Connecting to the instrument through the web

interface (on page 2-23).

2. From the navigation bar on the left, in the LXI Home menu, select IP Config.

3. Click Modify. The Modify IP Configuration page is displayed.

Figure 21: Modify IP Configuration web page

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4. Change the values.

5. Click Submit. The instrument reconfigures its settings, which may take a few moments.

You may lose your connection with the web interface after clicking Submit. This is normal and does not indicate an error or failure of the operation. If this occurs, find the correct IP address and reopen the web page of the instrument to continue.

Review events in the event log

The event log records all LXI events that the instrument generates and receives. The log includes the following information:

• The EventID column, which shows the identifier of the event that generated the event message.

• The System Timestamp column, which displays the seconds and nanoseconds when the event

occurred.

• The Data column, which displays the text of the event message.

Using the DMM6500 virtual front panel

The Virtual Front Panel page allows you to control the instrument from a computer as if you were using the front panel. You can operate the instrument using a mouse to select options.

The virtual front panel operates the same way as the actual front panel, with the following exceptions:

• The Front/Rear Terminals button only indicates the setting of the switch. You cannot change which set of terminals is used remotely.

• To scroll up or down on a screen, hold the left mouse button down and swipe up or down.

• To scroll right or left, hold the left mouse button down and swipe left or right. You can also click

the dots on the bar above the swipe screens to move from screen to screen.

• You cannot use pinch and zoom on the graph screen.

• Improve communication speed with the instrument by right-clicking and clearing High Resolution.

The default screen display resolution of 800 x 480 is reduced to 400 x 240 resolution when High Resolution is cleared.

You can display the screen only by right-clicking and selecting Screen Only.

To use the virtual front panel, you can use any of the standard web browsers. If you are using Microsoft Internet Explorer, it must be version 9 or above. Earlier versions will not allow the swipe motion to work.

To clear the event log and update the information on the screen, select the Refresh button.

Using graphing through the virtual front panel requires significant system resources and may slow instrument operation.

For information on the options, see Screen descriptions (on page 3-8).

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See the following figure for an example of the virtual front panel.

Figure 22: DMM6500 virtual front panel

The DMM6500 allows fewer than three clients to open the virtual front panel web page at the same time. Only the first successfully connected client can operate the instrument. Other clients can view the virtual front panel.

Change the date and time through the web interface

You can change the instrument date and time through the web interface. This is the same as changing the date and time through the front-panel System Settings menu. The date and time is used for the event log entries and data timestamps.

To change the date and time:

1. From the web interface page, select Admin.

2. In the Local time table, change the information as needed.

3. Click Submit.

Change the password through the web interface

You can change the instrument password from the web interface.

The default user name and password is admin. Note that you cannot change the user name; it remains at admin even if the password has changed.

To change the password:

1. From the web interface Home page, select Admin.

2. In the Current password box, enter the presently used password.

3. In the New password and Confirm new password boxes, enter the new password.

4. Click Submit.

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Send commands using the web interface

You can send individual commands using the web interface.

The active command set is listed above the Command box.

To send commands using the web page:

1. From the navigation bar on the left, click Send Commands.

2. If requested, log in.

3. In the Command box, enter the command.

4. Click Send Command to send the command to the instrument. The command is displayed in the Command Output box. If there is a response to the command, it is displayed after the command.

5. To view any events that have occurred, click Return Error.

6. To clear the Command Output list, click Clear Output.

Extract buffer data using the web interface

The Extract Data page of the web interface allows you to download reading buffer data from the instrument.

To download buffer data:

1. From the web interface page, click Extract Data.

2. In the CSV File column, click the name of the file that you want to download.

3. Follow the instructions for your browser to open the file. Typically, the file opens in Microsoft Excel.

How to install the Keithley I/O Layer

Before installing, it is a good practice to check the Product Support web page (tek.com/product-

support) to see if a later version of the Keithley I/O Layer is available. Search for Keithley I/O Layer.

You can download the Keithley I/O Layer from the Keithley website.

The software installs the following components:

• Microsoft® .NET Framework

• NITM IVI Compliance Package

• NI-VISATM Run-Time Engine

• Keithley SCPI-based Instrument IVI-C driver

• Keithley I/O Layer

To install the Keithley I/O Layer from the Keithley website:

1. Download the Keithley I/O Layer Software from the Product Support web page (tek.com/product-

support), as described above. The software is a single compressed file and should be

downloaded to a temporary directory.

2. Run the downloaded file from the temporary directory.

3. Follow the instructions on the screen to install the software.

4. Reboot your computer to complete the installation.

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Modifying, repairing, or removing Keithley I/O Layer software

The Keithley I/O Layer interconnects many other installers.

To remove all the KIOL components, you need to uninstall the following applications using Control Panel Add/Remove programs:

• National Instruments NITM IVI Compliance Package

• National Instruments NI-VISATM Run-Time Engine

• IVI Shared Components

• Visa Shared Components

• Keithley SCPI Driver

After uninstalling components, reboot the computer.

Determining the command set you will use

You can change the command set that you use with the DMM6500. The remote command sets that are available include:

• SCPI: An instrument-specific language built on the SCPI standard.

• TSP: A scripting programming language that contains instrument-specific control commands that

can be executed from a stand-alone instrument. You can use TSP to send individual commands or use it to combine commands into scripts.

• SCPI2000: An instrument-specific language that allows you to run code developed for Keithley Instruments Series 2000 instruments.

• SCPI34401: An instrument-specific language that allows you to run code developed for Keysight Model 34401 instruments.

If you change the command set, reboot the instrument.

You cannot combine the command sets.

As delivered from Keithley Instruments, the DMM6500 is set to work with the DMM6500 SCPI command set.

If you choose the SCPI2000 or SCPI34401 command set, you will not have access to some of the extended ranges and other features that are now available using the default SCPI command set. In addition, some Series 2000 or Keysight 34401 code will work differently in the DMM6500 than it did in the earlier instrument. For information about the differences between the DMM6500 and the Series 2000, refer to Keithley Instruments document #0771466, DMM6500 in a Model 2000 application. For information about the differences between the DMM6500 and the Keysight 34401, refer to Keithley Instruments document #0771467, DMM6500 in a Keysight Model 34401 application.

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To set the command set from the front panel:

1. Press the MENU key.

2. Under System, select Settings.

3. Select Command Set.

To verify which command set is selected from a remote interface:

Send the command:

You are prompted to reboot.

*LANG?

To change to the SCPI command set from a remote interface:

Send the command:

*LANG SCPI

Reboot the instrument.

To change to the TSP command set from a remote interface:

Send the command:

*LANG TSP

Reboot the instrument.

System information

You can get the serial number, firmware build, detected line frequency, calibration verify date, calibration adjust date, and calibration adjust count information from the instrument.

View system information from the front panel

To view the version and serial number information from the front panel:

1. Press the MENU key.

2. Under System, select Info/Manage.

The firmware version and serial number are displayed.

To view the calibration information from the front panel:

1. Press the MENU key.

2. Under System, select Calibration.

The instrument displays:

• Adjust Date: The date the instrument was adjusted through factory calibration

• Adjust Count: The number of times the instrument has been factory calibrated.

• Calibration Date: The date when instrument calibration was last verified.

To view the line frequency information from the front panel:

1. Press the MENU key.

2. Under System, select Settings.

3. Scroll down to display the Line Frequency.

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View system information using SCPI commands

To view system information using SCPI commands:

To retrieve the manufacturer, model number, serial number, and firmware version, send the command:

*IDN?

To read the line frequency, send the command:

SYStem:LFRequency?

The firmware build, memory available, and factory calibration date are not available when using SCPI commands.

View system information using TSP commands

To view system information using TSP commands:

To read the model number, send the command:

print(localnode.model)

To read the serial number, send the command:

print(localnode.serialno)

To read the firmware version, send the command:

print(localnode.version)

To read the line frequency, send the command

print(localnode.linefreq)

The factory calibration date is not available with TSP commands.

You can also create user-defined strings to store custom, instrument-specific information in the instrument, such as department number, asset number, or manufacturing plant location. See the TSP

command reference (on page 15-1) for detail about the userstring functions.

In this section:

Front-panel overview ................................................................3-1

Rear panel overview .................................................................3-3

Touchscreen display .................................................................3-5

Screen descriptions ..................................................................3-8

APPS Manage ........................................................................3-60

Examples in this manual .........................................................3-60

Display features ......................................................................3-61

Instrument sounds ..................................................................3-65

POWER switch

Turns the instrument on or off. To turn the instrument on, press and hold the power switch. To turn it off, press and hold the power switch again. The LED is green when the instrument is on and the LED is amber when turned off.

HOME key

Returns the display to the Home screen.

Section 3

Instrument description

Front-panel overview

The front panel of the DMM6500 is shown below. Descriptions of the controls on the front panel follow the figure.

Figure 23: DMM6500 front panel

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MENU key

Opens the main menu. Press the icons on the main menu to open channel, measure, views, trigger, scripts, and system screens. For details, refer to Menu overview (on page 3-22).

APPS key

Opens the APPS Manager. APPS extend the functionality of your DMM6500.

HELP key

Opens help for the area or item that is selected on the display. If there is no selection when you press the HELP key, it displays overview information for the screen you are viewing.

USB port

Saves reading buffer data and screen snapshots to a USB flash drive. You can also store and retrieve scripts to and from a USB flash drive. The flash drive must be formatted as a FAT or FAT32 drive.

Touchscreen

The DMM6500 has a high-resolution, five-inch color touchscreen display. The touchscreen accesses swipe screens and menu options. You can access additional interactive screens by pressing the front-panel MENU, APPS, and FUNCTION keys. Refer to Touchscreen display (on page 3-5) for details.

ENTER key

Selects the highlighted choice or allows you to edit the selected field.

EXIT key

Returns to the previous screen or closes a dialog box. For example, press the EXIT key when the main menu is displayed to return to the Home screen. When you are viewing a subscreen (for example, the Event Log screen), press the EXIT key to return to the main menu screen.

FUNCTION key

Displays instrument functions. To select a function, touch the function name on the screen.

TRIGGER key

Accesses trigger-related settings and operations. The action of the TRIGGER key depends on the instrument state. For details, see Switching between measurement methods (on page 5-42).

SENSE terminals

Use the SENSE HI and SENSE LO terminals and the INPUT terminals with the 4-wire resistance, 3-wire and 4-wire RTD temperature, and DC voltage ratio functions.

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INPUT terminals

Use the INPUT HI and INPUT LO terminals for all measurements except current.

TERMINALS switch

Activates the terminals on the front or rear panel. Selecting the rear panel provides the proper connections to an inserted scanner card. When the front-panel terminals are active, the green LED is visible. When the rear-panel terminals are active, the amber LED is visible.

AMPS

Use the AMPS connection with the INPUT LO terminal to measure 3A DC or AC

RMS

current.

Measurement input fuse

Fast-acting current-input fuse. For continued protection against fire hazard, replace this fuse with same type and rating. See Current input fuse replacement (on page 11-4) for details.

Rear panel overview

The rear panel of the DMM6500 is shown below. Descriptions of the options follow the figure.

Figure 24: DMM6500 rear panel

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Protective earth (safety ground)

Ground screw for connection to protective earth (safety ground). Connect to protective earth using recommended wire size (# 16 AWG or larger).

LAN port

Supports full connectivity on a 10 Mbps or 100 Mbps network. The DMM6500 is a version 1.5 LXI Device Specification 2106 compliant instrument that supports TCP/IP and complies with IEEE Std 802.3 (ethernet LAN). See LAN communications (on page 2-11).

EXTERNAL TRIGGER IN

This terminal is a TTL-compatible input line with a 0 to 5 V logic signal. You can trigger the DMM6500 by using the transition of the line state by another device to initiate an action. The instrument can detect input trigger pulses on this line. The connector is a BNC type. Refer to External trigger control (on page 9-14) for details.

EXTERNAL TRIGGER OUT

This terminal is a TTL-compatible output line with a 0 V to 5 V logic signal. The instrument can generate output trigger pulses on this line. You can use this line for triggering by using the transition of the line state to initiate an action on an instrument monitoring this line. The connector is a BNC type. Refer to External trigger

control (on page 9-14) for details.

USB Type B port

USB Type B connection for communication, control, and data transfer. For details, see USB communications (on page 2-18).

Line fuse and power receptacle

Connect the line cord to the power receptacle and a grounded AC power outlet. The line fuse protects the power line input of the instrument. For safety precautions and other details, see

Instrument power (on page 2-4) and Line fuse replacement.

Chassis ground

Ground screw for connections to chassis ground. This provides a connection terminal to the equipment frame.

Communication accessory card slot

Installation slot for the Keithley Instruments KTTI-GPIB, KTTI-TSP, KTTI-RS232 communication accessories.

Accessory card slot

You can install an optional scanner card, such as the Model 2000-SCAN or 2001-TCSCAN, in this slot.

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SENSE terminals

Use the SENSE HI and SENSE LO terminals and the INPUT terminals with the 4-wire resistance, 3-wire and 4-wire RTD temperature, and DC voltage ratio functions.

INPUT terminals

Use the INPUT HI and INPUT LO terminals for all measurements except current. For current measurement, use the 3 A or 10 A AMPS connection with the INPUT LO terminal.

AMPS connection

10 A, 250 V current connector for DC current, digitize DC current, and AC current 10 A range only.

3 A, 250 V current connector for DC current and digitize DC current 10 µA to 3 A ranges, and AC current 1 mA to 3 A ranges.

Touchscreen display

The touchscreen display gives you quick front-panel access to measure settings, system configuration, instrument and test status, reading buffer information, and other instrument functionality. The display has multiple swipe screens that you can access by swiping the front panel. You can access additional interactive screens by pressing the front-panel MENU, APPS, and FUNCTION keys.

Do not use sharp metal objects, such as tweezers or screwdrivers, or pointed objects, such as pens or pencils, to touch the touchscreen. It is strongly recommended that you use only fingers to operate the instrument. Use of clean-room gloves to operate the touchscreen is supported.

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Scroll bars

Some of the interactive screens have additional options that are only visible when you scroll down the screen. A scroll indicator on the right side of the touchscreen identifies these screens. Swipe the screen up or down to view the additional options.

The figure below shows a screen with a scroll bar.

Figure 25: Scroll bar

Enter information

Some of the menu options open a keypad or keyboard that you can use to enter information. For example, if you are setting the name of a buffer from the front panel, you see the keyboard shown in the following figure.

Figure 26: DMM6500 front-panel keyboard for information entry

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You can enter information by touching the screen to select characters and options from the keypad or keyboard. You can move the cursor in the entry box by touching the screen. The cursor is moved to the spot in the entry box where you touched the screen.

On number keypads, you can set values by selecting the values on screen:

1. Select the character you want to change.

2. Select the required character from the keypad.

3. Press OK to save the change.

Adjust the backlight brightness and dimmer

You can adjust the brightness of the DMM6500 touchscreen display and buttons from the front panel or over a remote interface. You can also set the backlight to dim after a specified period has passed with no front-panel activity (available from the front-panel display only). The backlight settings set through the front-panel display are saved through a reset or power cycle.

Screen life is affected by how long the screen is on at full brightness. The higher the brightness setting and the longer the screen is bright, the shorter the screen life.

To adjust the backlight brightness from the front panel:

1. Press the MENU key.

2. Under System, select Settings.

3. Select Backlight Brightness.

4. Drag the sliding adjustment to set the backlight.

5. Select OK to save your setting.

To set the backlight dimmer from the front panel:

1. Press the MENU key.

2. Under System, select Settings.

3. Select Backlight Dimmer. The Backlight Dimmer dialog box opens.

4. Select a dimmer setting.

To adjust the brightness using the SCPI remote interface:

Send the following command:

:DISPlay:LIGHt:STATe <brightness>

Where <brightness> is one of the following options:

• Full brightness: ON100

• 75% brightness: ON75

• 50% brightness: ON50

• 25% brightness: ON25

• Display off: OFF

• Display, key lights, and all indicators off: BLACkout

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To adjust the backlight using TSP commands:

Send the following command:

display.lightstate = brightness

Where brightness is one of the following options:

• Full brightness: display.STATE_LCD_100

• 75% brightness: display.STATE_LCD_75

• 50% brightness: display.STATE_LCD_50

• 25% brightness: display.STATE_LCD_25

• Display off: display.STATE_LCD_OFF

• Display, key lights, and all indicators off: display.STATE_BLACKOUT

Event messages

During operation and programming, front-panel messages may be displayed. Messages are information, warning, or error notifications. For information on event messages, refer to Using the

event log (on page 4-9).

Figure 27: Example front-panel error message

Screen descriptions

The following topics describe the screens and options that you can view on the DMM6500 front-panel display.

The information and the available options that appear on the screens will vary depending on whether the TERMINALS button is set to the front terminals or the rear terminals.

Home screen

This is the default screen that you see when you turn the DMM6500 on or press the HOME key.

When the TERMINALS switch is set to FRONT, options for measuring are available.

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Figure 28: DMM6500 home screen - front

When the TERMINALS switch is set to REAR, options for monitoring channels are available in addition to the options for measuring.

Figure 29: DMM6500 home screen - rear

The options available on the Home screen are described in the following topics.

Status and event indicators

The indicators at the top of the Home screen contain information about instrument settings and states. Some of the indicators also provide access to instrument settings.

Select an indicator to get more information about the present state of the instrument.

Figure 30: Home screen status bar

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Communications indicator

Indicator

Instrument communication

GPIB

Instrument is communicating through a GPIB interface

Local

Instrument is controlled from the front panel

Slave

Instrument is a subordinate in a TSP-Link system

TCPIP

Instrument is communicating through a LAN interface

RS-232

Instrument is communicating through an RS-232 interface

Telnet

Instrument is communicating through Telnet

TSP-Link

Instrument is communicating through TSP-Link

USBTMC

Instrument is communicating through a USB interface

VXI-11

Instrument is communicating through an ethernet interface using the VXI-11 TCP/IP instrument protocol

The communications indicator displays the type of communications the instrument is using. Select the indicator to display the present communications settings. Select Change Settings at the bottom of the dialog box to open the System Communications screen, where you can change the settings. Refer to Remote communications interfaces (on page 2-5) for detail on the options that are available.

Figure 31: Communications indicator expanded

The options in the following table for RS-232, digital I/O, GPIB, and TSP-Link require a communications accessory card to be installed in the instrument. Accessory cards include the KTTI-GPIB, KTTI-TSP, and KTTI-RS232.

Communications activity indicator

The activity indicator is located to the right of the communications indicator. When the instrument is communicating with a remote interface, the up and down arrows flash.

Figure 32: Communications indicator

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If a service request has been generated, SRQ is displayed to the right of the up and down arrows. You can instruct the instrument to generate a service request (SRQ) when one or more events or conditions occur. This indicator stays on until the serial poll byte is read or all the conditions that caused SRQ are cleared.

Active buffer indicator

The Active Buffer indicator shows the name of the active reading buffer. Select the indicator to open a menu of available buffers. Select a buffer name in the list to make it the active reading buffer. The name of the new active reading buffer is updated in the indicator bar.

The green bar next to the buffer name indicates how full the buffer is.

To create a new buffer, select Create New. The new buffer is automatically assigned to be the active buffer. The menu includes an option to create a new reading buffer.

Figure 33: Active buffer indicator menu - front

Active script indicator

This indicator shows script activity and allows you to control script action from the Home screen.

If there is no script activity, the indicator displays "No Script." You can select the indicator to display a menu of available scripts. Select a script name to run that script.

If a script is running from the instrument or the USB flash drive, the name of the script is displayed. If a script from TSB is running, TSB_Script is displayed. If you select the indicator, you are prompted to abort the running script.

If the instrument is recording a macro script, "Recording" is displayed. You can select the indicator to select an option to stop or cancel recording.

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Figure 34: DMM6500 active script indicator

Indicator

Meaning

CONT

Continuous measurement: The instrument is making measurements continuously.

IDLE

Trigger model measurement method. The trigger model is not running.

INACT

The trigger model is inactive. This occurs when the trigger model cannot run, such as when the count is more than the reading buffer capacity or if the buffer is style writable.

MAN

Manual trigger mode: Press the front-panel TRIGGER key to initiate a single measurement.

RUN

Trigger model measurement method. The instrument is running the presently selected trigger model.

WAIT

Trigger model measurement method. The trigger model is waiting on an event.

Trigger mode indicator

Located to the right of the active script indicator, this indicator shows the active trigger measurement method. Select the indicator to open a menu. Select one of the buttons on the menu to change the trigger measurement method, initiate or abort the trigger model, or initiate or abort a scan. In the figure below, Continuous Measurement is the present trigger measurement method.

Figure 35: Trigger mode indicator

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System event indicator

Icon

Description

An empty triangle means that no new events were logged in the event log since the last time you viewed the event log.

A blue circle means that an informational event message was logged. The message is for information only. This indicates status changes or information that may be helpful. If the Log Command option is on, it also includes commands.

A yellow triangle means that a warning event message was logged. This message indicates that a change occurred that could affect operation.

A red triangle means that an error event message was logged. This may indicate that a command was sent incorrectly.

Located on the right side of the instrument status indicator bar, this indicator changes based on the type of event that has been logged.

Select the indicator to open a message screen with a brief description of the error, warning, or event. Select the Event Log button to open the System Events tab of the event log, which you can use to access detailed descriptions of the events. For more information about the Event Log, see Using the

event log (on page 4-9).

Figure 36: Error and message indicator

The following table describes the different icons.

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Measure view area

Indicator

Meaning

10MΩ

Input impedance is set to 10 MΩ

AUTOΩ

Input impedance is set to automatic

AZERO

Instrument automatically retrieves reference values

EXTJC

The thermocouple reference junction is external

FILT

A filter is applied to the measurement

INTJC

The thermocouple reference junction is internal

L1FAIL

Limit test one is enabled and measurement failed

L1PASS

Limit test one is enabled and measurement passed

L2FAIL

Limit test two is enabled and measurement failed

L2PASS

Limit test two is enabled and measurement passed

MATH

A percent, mx+b, or reciprocal calculation is applied

OCMP

Offset compensation is on

OLEAD

Open lead detection is enabled

REL

Relative offset is applied

SIMJC

The thermocouple reference junction is simulated

The Measure view area of the Home screen displays the value of the present measurement and other measurement information.

The options available on the Home screen depend on whether you are using the front panel terminals or rear panel terminals. When you are using the rear terminals, scan and channel information, including the Watch Channel button, is shown. Watch channels are channels that you want to focus attention on. Watch Channels affect what you see on the scan and statistics swipe screens. They also determine which readings you see on the home screen.

In the Reading Table, you can select the watch channels to filter the buffer so that only data from the watch channels is shown. In the Graph screens, you can select the watch channels as the traces to display on the graph.

Figure 37: Measure view area of the home screen - front terminals selected

Figure 38: Measure view area of the home screen - rear terminals selected

The Range button on the lower left displays the presently selected measure range. Select the button to change the range.

The indicators on the right edge of the Measure view area show any measure settings that affect the displayed measurement value. The indicators and what they mean are defined in the following table.

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Interactive swipe screens

Screen element

Description

Minimize indicator

You can swipe down to minimize the swipe screens.

Swipe screen indicator

Each circle represents one swipe screen. As you swipe right or left, a different circle changes color, indicating where you are in the screen sequence. Select a circle to move the swipe screen without swiping.

Calculations shortcut

Select to open the CALCULATION SETTINGS menu. Only available when TERMINALS is set to FRONT.

Measure Settings shortcut

Select to open the MEASURE SETTINGS menu for the selected function. Only available when TERMINALS is set to FRONT.

Restore indicator

Indicates that you can swipe up to display the swipe screen.

Graph shortcut

Select to open the Graph screen.

Channel Settings shortcut

Not shown. Select to open the CHANNEL SETTINGS screen. Scan shortcut

Not shown. Select to open the SCAN screen.

The DMM6500 touchscreen display has multiple screens that you can access by swiping left or right on the lower half of the display. The options available in the swipe screens are described in the following topics.

Swipe screen heading bar

The heading bar of the swipe screen contains the following options.

Figure 39: DMM6500 swipe screens, maximized and minimized

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Screen element

Description

Channel control shortcut

Not shown. Select to open the CHANNEL CONTROL screen.

FUNCTIONS swipe screen

The FUNCTIONS swipe screen highlights the selected measure function and allows you to select a different function.

Figure 40: FUNCTIONS swipe screen

SETTINGS swipe screen

The SETTINGS swipe screen gives you front-panel access to some instrument settings. It shows you the present settings and allows you to change, enable, or disable them quickly. The available settings depend on which measure function is active.

Figure 41: SETTINGS swipe screen

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To disable or enable a setting, select the box next to the setting so that it shows an X (disabled) or a check mark (enabled).

The icons on the right side of the swipe screen heading bar are shortcuts to the CALCULATIONS SETTINGS and MEASURE SETTINGS menus. The CALCULATIONS SETTINGS and MEASURE SETTINGS menus are visible when the FRONT TERMINALS are selected.

The CALCULATIONS SETTINGS and MEASURE SETTINGS menus are only visible if the instrument is set to FRONT terminals

GRAPH swipe screen

The GRAPH swipe screen shows a graphical representation of the readings in the presently selected reading buffer.

Figure 42: GRAPH swipe screen

For descriptions of the settings, select the box next to the setting, then press the HELP key.

To view the graph in the full screen and to access graph settings, select the graph icon on the right side of the swipe screen header. You can also open the full-function Graph screen by pressing the MENU key and selecting Graph under Views. For more information about graphing measurements, see Graphing (on page 8-1).

STATISTICS swipe screen

The STATISTICS swipe screen contains information about the readings in the active reading buffer. When the reading buffer is configured to fill continuously and overwrite old data with new data, the buffer statistics include the data that was overwritten. To get statistics that do not include data that has been overwritten, define a large buffer size that will accommodate the number of readings you will make. You can use the Clear Active Buffer button on this screen to clear the data from the active reading buffer.

If multiple watch channels are set up, you can use the Channel arrows to change the display to show the statistics for each watch channel.

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Figure 43: STATISTICS swipe screen

CHANNEL swipe screen

The CHANNEL swipe screen is displayed when the TERMINALS switch is set to rear.

The CHANNEL swipe screen gives you front-panel access to channel operation and setup options. It provides controls for opening and closing channels on the scanner card. You can select the channel from a list of available channels. You can also open or close all the channels from the channel list.

You can step through the channels on the scanner card. If the channel is a measurement channel and there is no function assigned, you are prompted to assign a function.

Figure 44: Channel swipe screen

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SCAN swipe screen

The SCAN swipe screen gives you front-panel access to build a scan, edit a scan, start a scan, step through a scan, and display scan results. You can also save the scan results to a USB flash drive.

The icon on the right side of the swipe screen heading bar is a shortcut to the Channel Scan menu. You can also use the Channel Scan menu to build or edit a scan.

Figure 45: SCAN swipe screen - initial view

Figure 46: SCAN swipe screen - scan results

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The SCAN swipe screen has the following control options:

Button

Description

Abort Scan

Stop the scan.

Build Scan

Opens the SCAN screen, where you can set up a new scan.

Edit

Opens the SCAN screen, where you can change the setup of a scan.

Pause Scan

Pauses the scan until Resume Scan is selected.

Resume Scan

Resumes a paused scan.

Save to USB

Saves the data in the scan reading buffer to a CSV file on the USB flash drive.

Start Scan

Runs a scan.

Step Scan

Incrementally steps through a scan, channel by channel.

USER swipe screen

If you program custom text, it is displayed on the USER swipe screen. For example, you can program the DMM6500 to show that a test is in process. This swipe screen is only displayed if custom text has been displayed. For details about using remote commands to program the display, refer to

Customizing a message for the USER swipe screen (on page 3-63).

Figure 47: User swipe screen

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SECONDARY swipe screen

Button

Description

Secondary Measure

Enables or disables the secondary measurement feature. The primary measurement is not affected by the state of the secondary measurement.

Second Function

Displays the list of functions so you can select the measure function for the secondary measurement.

Swap Primary

Switches the primary and secondary functions.

The SECONDARY swipe screen allows you to display the results of two measurements on the Home screen. Refer to Display results of two measure functions (on page 5-38).

Figure 48: SECONDARY swipe screen

The secondary measurement window has the following control options:

Depending on the selected functions, a relay may click when the instrument switches between the measurement types. Leaving secondary measurements on for extended periods may shorten the life of the relays.

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Menu overview

The Channel Settings menu allows you to select and configure channels. The Channel Control menu contains options to open and close channels.

The Channel Scan menu contains options to set up and run scans. Options include control of groups, which are channels that are sequential and have the same functions applied to them.

To access the main menu, press the MENU key on the DMM6500 front panel. The figure below shows the organization of the main menu.

Figure 49: DMM6500 main menu - front terminals selected

The main menu includes submenus that are labeled in green across the top of the display. Selecting an option in a submenu opens an interactive screen.

Channel menu

The Channel menus allow you to set up and control channels and scans from the front panel.

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Settings menu

The Channel Settings menu contains options to set up the measurement functions for each channel.

Setting

Description

All

Select all channels. Any selections you make in the right pane affect all channels.

Channels

Each channel and its open or closed status is shown. You can select individual or multiple channels. Any selections you make in the right pane affect only the selected channels.

Function

Select the function to assign to the selected channels. When a function is selected, you can set the parameters for that function. You can also select None to have no function assigned to a channel. For detail on the options for each function, refer to

Measure Settings menu (on page 3-30). For detail on the

calculations that can be applied to the measurements, refer to

Measure Calculations menu (on page 3-41).

Slot

Select the slot that contains the channels to which to make changes.

Label

Sets the label associated with a channel. The label must be unique; you cannot assign the same label to more than one channel. Labels cannot start with a digit. They can be up to 19 characters. On the front panel of the instrument, only the first few characters are displayed. After defining a label, you can use it to specify the channel instead of using the channel number in commands.

Channel delay

The channel delay is an additional delay that is added after a channel is closed. You can use this delay to allow additional settling time for a signal on that channel. For most cards, the resolution of the delay is 10 μs. However, check the documentation for your card to verify. Setting a delay only applies to switch channels.

The Channel Control menu contains options to open and close channels.

Setting

Description

Channel

Select the switch icon for a channel to close it. Any other closed channels are opened. If no function is selected for the channel, you are prompted to select one.

Open

Select Open to open the selected channel. You can also select channel again to open it.

Slot

Select the slot that contains the channels you want to control.

Control menu

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Scan menu

The Channel Scan menu contains options to set up and run scans. Options include control of groups, which are channels that are sequential and have the same functions applied to them.

Scan options

Description

+ (Add Group of Channels)

Adds a group of channels to the end of the scan list.

Group menu

The menu icon next to the selected function in the scan list provides the following options:

▪ Insert Channel(s): Add a channel or group of channels

immediately before the selected group.

▪ Change Channels: Allows you to change the channels that

are in the group. If you select channels that are assigned to a different function than the other channels in the group, the function is changed to match the group. If you select nonconsecutive channels, a new group with the same function is created.

▪ Delete Group: Removes the selected channel or group from

the scan.

▪ Disable Group or Enable Group: Allows you to skip a

channel or group during a scan while maintaining the settings. The channel or group is grayed out if it is disabled. Select Enable Channel or Enable Group to use the channel or group in the scan again.

▪ Copy Settings: Copies the functions and function settings of

a group.

▪ Paste Settings: Pastes copied functions and function

settings to another group. If the channels in the group are sequential with another group with the same settings, the groups are merged.

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New Scan

If channels are selected in the Channel Settings menu and have functions set, the selected channels are automatically added to the scan list. To remove these channels from the scan list, select New

Scan.

Scan

The menu icon in the Scan menu bar provides the following options:

▪ Create New: Removes the existing steps from the scan.

Selections in the Settings, Scan, and Trigger tabs remain.

▪ Save: Save the scan. ▪ Expand or Collapse Group: Display the channels in the

group individually or collapse the channels into the group.

Use Preview

If channels are selected in the Channel Settings menu and have functions set, the selected channels are automatically added to the scan list. To accept this list as the new scan, select Use Preview. You can change the settings after accepting the preview list.

Start

Starts the scan.

Status

Displays the status of the trigger model for this scan:

▪ Idle: The trigger model is stopped. ▪ Running: The trigger model is running. ▪ Waiting: The trigger model has been in the same wait block

for more than 100 ms.

▪ Empty: The trigger model is selected, but no blocks are

defined.

▪ Building: Blocks have been added. ▪ Failed: The trigger model is stopped because of an error. ▪ Aborting: The trigger model is stopping because of a user

request.

▪ Aborted: The trigger model is stopped because of a user

request.

Settings tab

Description

Function

The function that is set for the selected channel or group of channels.

Measure settings

Settings that are available for the selected function. Refer to

Measure Settings menu (on page 3-30) for the available options.

Calculation settings

Settings that specify how measurement information is processed and returned. Refer to Measure Calculations menu (on page 3-41) for the available options.

Label

Assigns a label to the selected channel. The label name is displayed on the Home screen and the Channel swipe screen when the channel is displayed. See Assign labels to channels (on page 6-7) for information on setting up labels.

Channel Delay

Sets a channel delay that occurs after the relay closes. This allows extra settling time for the relay. This delay is in addition to normal settling time.

Settings tab

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Scan tab

Description

Scan Count

Sets the number of times the scan is repeated.

Scan to Scan Interval

The interval time between scan starts when the scan count is more than one. If the scan interval is less than the time the scan takes to run, the next scan starts immediately when the first scan finishes.

Scan Duration

The amount of time the scan is expected to take. Scan duration is calculated using the scan-to-scan interval setting and the channel delays.

Buffer

The reading buffer that stores the measurements from this scan. If you select Create New, refer to Measure Reading Buffers menu (on page 3-43) for information on the available options.

Export to USB

Defines when to export the scan data to a USB flash drive. You can select:

▪ After each scan: Export data at the completion of each scan. ▪ Once at end: Export data when all scans are complete. ▪ Never: Do not automatically export scan data.

If you select an option that exports data, you are prompted for which data to include, as described below. Time Format: Sets the time format:

▪ Absolute: Each timestamp provides the time and date that

the reading was made or the number of seconds from the first buffer reading that the reading was made.

▪ None: No timestamp. ▪ Parts: Timestamps contain dates, hours, minutes, seconds,

and fractions of seconds according to Coordinated Universal Time (UTC).

▪ Raw: Timestamps display the absolute time in seconds. ▪ Relative: Timestamps are oriented to a timer with the first

buffer reading timestamped at 0.000000 seconds. Each following timestamp is then based on the presently selected format.

File Layout: Determines how data is placed in Microsoft Excel:

▪ Reading per Row: Readings are displayed in rows. ▪ Reading in Channel Columns: Ignore other columns and use

a special format with a column per channel.

▪ Spreadsheet Graph: Ignore other columns and use special

format that is easy to graph in Microsoft Excel. Filename: By default, the file name is the same as the buffer name, followed by the date and time when the file was saved. The date and time is in the format mmdd_hhmmss. To save the file with a different name, select Change. The date and time is not included if you change the filename. Timestamps: Select Each Scan to record a timestamp for the scan. Select Each Reading to record a timestamp for each reading in the scan.

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Scan tab

Description

Power Loss Restart

When set to on, causes a scan to automatically restart if it was interrupted by a power failure.

Alarm Limits

Auto Learn runs a scan and establishes alarm limits based on the measurements from the scan. Make sure your system is in a stable state before running Auto Learn. You can also set limits manually. Refer to Setting alarm limit for scans (on page 6-23) for information on setting alarm limits.

Alarm

When this is set on, a trigger is generated when the measurements exceed the limits set for the channels in the scan.

Scan Start

Scan Start determines which event starts the scan. You can select:

▪ Monitor Measurement: The scan starts when a measurement

above, below, or between specified limit values occurs on a

channel.

▪ Digital Input: The scan starts when the edge is falling, rising,

or either.

▪ TSP-Link Input: The scan starts when a trigger is received

from the specified TSP-Link input.

▪ Timer: The scan starts when the specified start time, delay, or

event count occurs.

▪ Display TRIGGER Key: The scan starts when the front-panel

TRIGGER key is pressed.

▪ External In Trigger: The scan starts when a trigger is received

on the rear-panel External In Trigger line.

▪ LAN In Trigger: The scan starts when a LAN In trigger is

received.

▪ None: The scan starts immediately.

NOTE: Use of a TSP-Link line or a digital output line requires a communications accessory card to be installed in the instrument. Accessory cards include the KTTI-GPIB, KTTI-TSP, and KTTI-RS232.

Bypass Once

If this option is selected, the scan starts immediately instead of waiting for the channel stimulus event on the first channel of the scan.

Trigger tab

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Start (Channel)

The channel stimulus event, if any, that must occur before the step action occurs. Starts channel action when a trigger is received. You can select:

▪ Digital Input: Starts channel action when a trigger from a

digital input line is received.

▪ TSP-Link Input: The channel action starts when a trigger is

received from the specified TSP-Link input.

▪ Timer: Channel action starts when the specified start time,

delay, or event count occurs.

▪ Display TRIGGER Key: Channel action starts when the

TRIGGER key on the front panel of the instrument is pressed.

▪ External In Trigger: Channel action starts when a signal from

the EXTERNAL TRIGGER IN line is received.

▪ LAN In Trigger: Channel action starts when a trigger from a

LAN input line is received.

▪ None: Channel action occurs immediately when the scan

reaches the channel. NOTE: Use of a TSP-Link line or a digital output line requires a communications accessory card to be installed in the instrument. Accessory cards include the KTTI-GPIB, KTTI-TSP, and KTTI-RS232.

Ready (Channel)

Open/Close/RD/WR Ready sets a trigger that is sent when the channel is ready. You can select:

▪ Digital Out Line: Sends a trigger through the selected digital

output line.

▪ TSP-Link Out Line: Sends a trigger through the selected

TSP-Link output line.

▪ Timer: Enables a timer that is triggered when the channel is

ready.

▪ External Out: Sends a trigger to the EXTERNAL TRIGGER

OUT line.

▪ LAN Out: Sends a negative or positive trigger to a selected

LAN output.

▪ None: No ready trigger is sent.

NOTE: Use of a TSP-Link line or a digital output line requires a communications accessory card to be installed in the instrument. Accessory cards include the KTTI-GPIB, KTTI-TSP, and KTTI-RS232.

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Start (Measure)

The measure stimulus event, if any, that must occur before the measure action occurs. Starts measurements when a trigger is received. You can select:

▪ Digital Input: Starts measurements when a trigger from a

digital input line is received.

▪ TSP-Link Input: Starts measurements when a trigger is

received from the specified TSP-Link input.

▪ Timer: Starts measurements when the specified start time,

delay, or event count occurs.

▪ Display TRIGGER Key: Starts measurements when the

TRIGGER key on the front panel of the instrument is pressed.

▪ External In Trigger: The measurement starts when a signal

from the EXTERNAL TRIGGER IN line is received.

▪ LAN In Trigger: The measurement starts when a trigger from

a LAN input line is received.

▪ None: The measurement occurs immediately when the scan

reaches the measure block.

Complete (Measure)

Select the event that causes a trigger to be asserted when the measurement is complete. You can select:

▪ Digital Out Line: Sends a trigger through the selected digital

output line.

▪ TSP-Link Out Line: Sends a trigger through the selected

TSP-Link output line.

▪ Timer: Enables a timer that is triggered when the scan starts. ▪ External Out: Sends a trigger to the EXTERNAL TRIGGER

OUT line.

▪ LAN Out: Sends a negative or positive trigger to a selected

LAN output.

▪ None: No scan complete trigger is sent.

Scan Complete

The event that asserts the trigger to send a notify event when the scan is complete.

The QuickSet menu allows you to change the function and adjust performance. This menu is only available if the terminals are set to FRONT.

Setting

Description

Function

Selects the measure function that the instrument uses. Refer to

DMM measurement overview (on page 5-3).

Performance

Adjusts the balance between resolution and speed of the instrument. Refer to Using the Performance slider (on page 5-40).

Measure menu

The Measure menus allow you to select, configure, and perform measure operations from the front panel. The following topics describe the settings that are available on these interactive screens.

QuickSet menu

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Measure Settings menu

The Measure Settings menu contains settings for the presently selected measure function, which is identified by the function indicator in the upper right corner of the menu. The available settings depend on the front-panel FUNCTION key selection.

Setting

Description

Aperture

Assigns a numerical value to measure the integration rate in seconds; see Using aperture or NPLCs to adjust speed and

accuracy (on page 5-57).

Auto Delay

Applies a wait period at the start of measurement to allow cables and circuitry to settle for best accuracy. Refer to Auto Delay (on page 5-42).

Auto Zero

Determines if internal reference points are used to maintain stability and accuracy. See Automatic reference measurements (on page 5-46).

Count

Sets the number of aperture readings that are processed when a measurement is requested.

Decibel Reference

Sets decibel reference point; this setting is only available when Unit is set to Decibel. Refer to Show voltage readings in decibels (on page 5-7).

Display Digits

Sets the number of digits that are displayed for front-panel readings. It does not affect accuracy or speed. Refer to Setting the

number of displayed digits (on page 3-61).

Input Impedance

Sets impedance to Auto or 10 MΩ. Refer to DC voltage input

impedance (on page 5-8).

Integration Unit

Determines if aperture or number of power line cycles are used to set the amount of time the input signal is measured. See Using

aperture or NPLCs to adjust speed and accuracy (on page 5-57).

Line Sync

Enables or disables line synchronization. When it is enabled, it helps increase common-mode and normal-mode noise rejection. Refer to Line cycle synchronization (on page 5-57).

NPLC

Assigns a numerical value for the integration rate to count the number of power line cycles; see Using aperture or NPLCs to

adjust speed and accuracy (on page 5-57).

Range

Determines the full-scale input for the measurement; also affects the accuracy of the measurements and the maximum signal that can be measured. Refer to Ranges (on page 5-47).

Unit

Allows voltage to be shown in volts, decibels, or decibel-milliwatts. Refer to Show voltage readings in decibels (on page 5-7) and

Show voltage readings in decibel-milliwatts (dBm). (on page 5-7)

Function indicators

The Function indicator in the upper right corner of some menu screens displays which function the instrument is using to make measurements. The indicators include DCV Ratio to indicate that the DC voltage ratio function is selected and 2W Res to indicate that the 2-wire resistance function is selected. You can select the indicator to open the list of functions and change the active function.

DC voltage measure settings

The following options are available on the Measure Settings menu when the function is set to DC voltage.

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AC voltage measure settings

Setting

Description

Auto Delay

Applies a wait period at the start of measurement to allow cables and circuitry to settle for best accuracy. Refer to Auto Delay (on page 5-42).

Count

Sets the number of aperture readings that are processed when a measurement is requested.

Decibel Reference

Sets decibel reference point; this setting is only available when Unit is set to Decibel. Refer to Show voltage readings in decibels (on page 5-7).

Detector Bandwidth

Sets the detector bandwidth. Refer to Detector bandwidth.

Display Digits

Sets the number of digits that are displayed for front-panel readings. It does not affect accuracy or speed. Refer to Setting the

number of displayed digits (on page 3-61).

Range

Determines the full-scale input for the measurement; also affects the accuracy of the measurements and the maximum signal that can be measured. Refer to Ranges (on page 5-47).

Unit

Allows voltage to be shown in volts, decibels, or decibel-milliwatts. Refer to Show voltage readings in decibels (on page 5-7) and

Show voltage readings in decibel-milliwatts (dBm). (on page 5-7)

Setting

Description

Aperture

Assigns a numerical value to measure the integration rate in seconds; see Using aperture or NPLCs to adjust speed and

accuracy (on page 5-57).

Auto Delay

Applies a wait period at the start of measurement to allow cables and circuitry to settle for best accuracy. Refer to Auto Delay (on page 5-42).

Auto Zero

Determines if internal reference points are used to maintain stability and accuracy. See Automatic reference measurements (on page 5-46).

Count

Sets the number of aperture readings that are processed when a measurement is requested.

Display Digits

Sets the number of digits that are displayed for front-panel readings. It does not affect accuracy or speed. Refer to Setting the

number of displayed digits (on page 3-61).

Integration Unit

Determines if aperture or number of power line cycles are used to set the amount of time the input signal is measured. See Using

aperture or NPLCs to adjust speed and accuracy (on page 5-57).

Line Sync

Enables or disables line synchronization. When it is enabled, it helps increase common-mode and normal-mode noise rejection. Refer to Line cycle synchronization (on page 5-57).

NPLC

Assigns a numerical value for the integration rate to count the number of power line cycles; see Using aperture or NPLCs to

adjust speed and accuracy (on page 5-57).

Range

Determines the full-scale input for the measurement; also affects the accuracy of the measurements and the maximum signal that can be measured. Refer to Ranges (on page 5-47).

These options are available on the Measure Settings menu when the function is set to AC voltage.

DC current measure settings

These options are available on the Measure Settings menu when the function is set to DC current.

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AC current measure settings

Setting

Description

Auto Delay

Applies a wait period at the start of measurement to allow cables and circuitry to settle for best accuracy. Refer to Auto Delay (on page 5-42).

Count

Sets the number of aperture readings that are processed when a measurement is requested.

Detector Bandwidth

Sets the detector bandwidth. Refer to Detector bandwidth.

Display Digits

Sets the number of digits that are displayed for front-panel readings. It does not affect accuracy or speed. Refer to Setting the

number of displayed digits (on page 3-61).

Range

Determines the full-scale input for the measurement; also affects the accuracy of the measurements and the maximum signal that can be measured. Refer to Ranges (on page 5-47).

Setting

Description/reference

Aperture

Assigns a numerical value to measure the integration rate in seconds; see Using aperture or NPLCs to adjust speed and

accuracy (on page 5-57).

Auto Delay

Applies a wait period at the start of measurement to allow cables and circuitry to settle for best accuracy. Refer to Auto Delay (on page 5-42).

Auto Zero

Determines if internal reference points are used to maintain stability and accuracy. See Automatic reference measurements (on page 5-46).

Count

Sets the number of aperture readings that are processed when a measurement is requested.

Display Digits

Sets the number of digits that are displayed for front-panel readings. It does not affect accuracy or speed. Refer to Setting the

number of displayed digits (on page 3-61).

Integration Unit

Determines if aperture or number of power line cycles are used to set the amount of time the input signal is measured. See Using

aperture or NPLCs to adjust speed and accuracy (on page 5-57).

Line Sync

Enables or disables line synchronization. When it is enabled, it helps increase common-mode and normal-mode noise rejection. Refer to Line cycle synchronization (on page 5-57).

NPLC

Assigns a numerical value for the integration rate to count the number of power line cycles; see Using aperture or NPLCs to

adjust speed and accuracy (on page 5-57).

Offset Compensation

Always set to Off for 2-wire resistance. Refer to Offset-

compensated ohms (on page 5-21).

Range

Determines the full-scale input for the measurement; also affects the accuracy of the measurements and the maximum signal that can be measured. Refer to Ranges (on page 5-47).

The following options are available on the Measure Settings menu when the function is set to AC current.

2-wire resistance measure settings

The following options are available on the Measure Settings menu when the function is set to 2-wire resistance.

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4-wire resistance measure settings

Setting

Description/reference

Aperture

Assigns a numerical value to measure the integration rate in seconds; see Using aperture or NPLCs to adjust speed and

accuracy (on page 5-57). Available if Integration Unit is set to

Aperture.

Auto Delay

Applies a wait period at the start of measurement to allow cables and circuitry to settle for best accuracy. Refer to Auto Delay (on page 5-42).

Auto Zero

Determines if internal reference points are used to maintain stability and accuracy. See Automatic reference measurements (on page 5-46).

Count

Sets the number of aperture readings that are processed when a measurement is requested.

Display Digits

Sets the number of digits that are displayed for front-panel readings. It does not affect accuracy or speed. Refer to Setting the

number of displayed digits (on page 3-61).

Integration Unit

Determines if aperture or number of power line cycles are used to set the amount of time the input signal is measured. See Using

aperture or NPLCs to adjust speed and accuracy (on page 5-57).

Line Sync

Enables or disables line synchronization. When it is enabled, it helps increase common-mode and normal-mode noise rejection. Refer to Line cycle synchronization (on page 5-57).

NPLC

Assigns a numerical value for the integration rate to count the number of power line cycles; see Using aperture or NPLCs to

adjust speed and accuracy (on page 5-57). Available if Integration

Unit is set to NPLC.

Offset Compensation

Enables or disables offset compensation. Auto is also available. When enabled, offset compensation reduces or eliminates thermoelectric EMFs in low-level resistance measurements. Refer to Offset-compensated ohms (on page 5-21).

Open Lead Detector

Enables or disables open lead detection. When enabled, detects open test leads, which can lead to inaccuracies in 4-wire sensing.

Range

Determines the full-scale input for the measurement; also affects the accuracy of the measurements and the maximum signal that can be measured. Refer to Ranges (on page 5-47).

Setting

Description

Auto Delay

Applies a wait period at the start of measurement to allow cables and circuitry to settle for best accuracy. Refer to Auto Delay (on page 5-42).

Auto Zero

Always set to Off when Continuity is selected

Count

Sets the number of aperture readings that are processed when a measurement is requested.

The following options are available on the Measure Settings menu when the function is set to 4-wire resistance.

Continuity measure settings

These options are available on the Measure Settings menu when the function is set to Continuity.

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3-34 DMM6500-901-01 Rev. A/April 2018

Setting

Description

Display Digits

Sets the number of digits that are displayed for front-panel readings. It does not affect accuracy or speed. Refer to Setting the

number of displayed digits (on page 3-61).

Limit 1 High Value

Sets the high value for limit 1. Limit 1 is automatically set to enable. Refer to Limit testing and binning (on page 5-55).

Limit 1 Audible

Determines if the beeper sounds when the resistance is more than or less than the limit 1 high value. Refer to Limit testing and binning (on page 5-55).

Line Sync

Enables or disables line synchronization. When it is enabled, it helps increase common-mode and normal-mode noise rejection. Refer to Line cycle synchronization (on page 5-57).

NPLC

Always set to 0.006 PLC when Continuity is selected

Range

Always set to 1 kΩ when Continuity is selected.

Setting

Description

Aperture

Controls the amount of time the input signal is measured (aperture), which affects the noise and reading rate; see Using

aperture or NPLCs to adjust speed and accuracy (on page 5-57).

Auto Delay

Applies a wait period at the start of measurement to allow cables and circuitry to settle for best accuracy. Refer to Auto Delay (on page 5-42).

Count

Sets the number of aperture readings that are processed when a measurement is requested.

Display Digits

Sets the number of digits that are displayed for front-panel readings. It does not affect accuracy or speed. Refer to Setting the

number of displayed digits (on page 3-61).

Range

Always set to Auto when frequency is selected

Threshold Range

Indicates the expected input level of the voltage signal. You can also set the threshold range to Auto.

Frequency measure settings

The following options are available on the Measure Settings menu when the function is set to Frequency.

DMM6500 6½-Digit Multimeter with Scanning Reference Manual Section 3: Instrument description

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Period measure settings

Setting

Description

Aperture

Controls the amount of time the input signal is measured (aperture), which affects the noise and reading rate; see Using

aperture or NPLCs to adjust speed and accuracy (on page 5-57).

Auto Delay

Applies a wait period at the start of measurement to allow cables and circuitry to settle for best accuracy. Refer to Auto Delay (on page 5-42).

Count

Sets the number of aperture readings that are processed when a measurement is requested.

Display Digits

Sets the number of digits that are displayed for front-panel readings. It does not affect accuracy or speed. Refer to Setting the

number of displayed digits (on page 3-61).

Range

Always set to Auto when period is selected

Threshold Range

Indicates the expected input level of the voltage signal. You can also set the threshold range to Auto.

Setting

Description

Aperture

Controls the amount of time the input signal is measured (aperture), which affects the noise and reading rate; see Using

aperture or NPLCs to adjust speed and accuracy (on page 5-57).

Auto Delay

Applies a wait period at the start of measurement to allow cables and circuitry to settle for best accuracy. Refer to Auto Delay (on page 5-42).

Auto Zero

Determines if internal reference points are used to maintain stability and accuracy. See Automatic reference measurements (on page 5-46).

Bias Level

Sets amount of current that is sourced by the instrument to make measurements.

Count

Sets the number of aperture readings that are processed when a measurement is requested.

Display Digits

Sets the number of digits that are displayed for front-panel readings. It does not affect accuracy or speed. Refer to Setting the

number of displayed digits (on page 3-61).

Integration Unit

Determines if aperture or number of power line cycles are used to set the amount of time the input signal is measured. See Using

aperture or NPLCs to adjust speed and accuracy (on page 5-57).

Limit 1 Audible

Determines if the beeper sounds when the measurement is more than or less than the limit 1 high value. Refer to Limit testing and

binning (on page 5-55).

Limit 1 High Value

Sets the high value for limit 1. Refer to Limit testing and binning (on page 5-55).

Limit 1 Low Value

Sets the low value for limit 1. Refer to Limit testing and binning (on page 5-55).

Line Sync

Enables or disables line synchronization. When it is enabled, it helps increase common-mode and normal-mode noise rejection. Refer to Line cycle synchronization (on page 5-57). Always set to Off for diode test.

The following options are available on the Measure Settings menu when the function is set to Period.

Diode measure settings

The following options are available on the Measure Settings menu when the function is set to Diode.

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Setting

Description

NPLC

Assigns a numerical value for the integration rate to count the number of power line cycles; see Using aperture or NPLCs to

adjust speed and accuracy (on page 5-57).

Range

Determines the full-scale input for the measurement; also affects the accuracy of the measurements and the maximum signal that can be measured. Refer to Ranges (on page 5-47). Always set to 10 V for diode test.

DMM6500 6½-Digit Multimeter with Scanning Reference Manual Section 3: Instrument description

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Temperature measure settings

Setting

Description

Aperture

Available if Integration Unit is set to Aperture. Controls the amount of time the input signal is measured (aperture), which affects the noise and reading rate; see Using aperture or NPLCs to adjust

speed and accuracy (on page 5-57).

Auto Delay

Applies a wait period at the start of measurement to allow cables and circuitry to settle for best accuracy. Refer to Auto Delay (on page 5-42).

Auto Zero

Determines if internal reference points are used to maintain stability and accuracy. See Automatic reference measurements (on page 5-46).

Count

Sets the number of aperture readings that are processed when a measurement is requested.

Display Digits

Sets the number of digits that are displayed for front-panel readings. It does not affect accuracy or speed. Refer to Setting the

number of displayed digits (on page 3-61).

Integration Unit

Determines if aperture or number of power line cycles are used to set the amount of time the input signal is measured. See Using

aperture or NPLCs to adjust speed and accuracy (on page 5-57).

Line Sync

Enables or disables line synchronization. When it is enabled, it helps increase common-mode and normal-mode noise rejection. Refer to Line cycle synchronization (on page 5-57).

NPLC

Available if Integration Unit is set to NPLC. Assigns a numerical value for the integration rate to count the number of power line cycles; see Using aperture or NPLCs to adjust speed and accuracy (on page 5-57).

Offset Compensation

RTD only: Enables or disables offset compensation.

Open Lead Detector

Thermocouple and RTDs only: Enables or disables open lead detection. When enabled, detects open test leads.

Reference Junction

Thermocouple only: If rear-panel terminals are selected, you can select Internal, External or Simulated. Displays Simulated and cannot be changed if front-panel terminals are selected.

RTD Alpha

RTD only when USER is selected: Sets the alpha value of a user-defined RTD.

RTD Beta

RTD only when USER is selected: Sets the beta value of a user-defined RTD.

RTD Delta

RTD only when USER is selected: Sets the delta value of a user-defined RTD.

RTD Zero

RTD only when USER is selected: Sets the zero value of a user-defined RTD.

Temperature

Thermocouple only: The simulated reference temperature.

Thermistor

Thermistor only: Sets the type of thermistor.

Thermocouple

Thermocouple only. Sets the thermocouple type.

Transducer

Sets the type of transducer that is used for temperature measurements.

Unit

Set the type of units that are displayed on the front panel and stored with the temperature measurement in the reading buffer.

The following options are available on the Measure Settings menu when the function is set to Temperature.

Keithley Keithley Instruments DMM6500 Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

Model DMM6500 6½-digit Bench/System Multimeter

Safety precautions

Introduction

Welcome

Extended warranty

Contact information

Organization of manual sections

Capabilities and features

General ratings

Installation

Dimensions

Bumpers and extension feet

Removing the bumpers

Adjusting the tilt feet

Removing the tilt feet for rack mounting

Installing a scanner card

Instrument power

Connect the power cord

Turn the DMM6500 on or off

Remote communications interfaces

Supported remote interfaces

Comparison of the communications interfaces

Simplicity

Triggering

Transfer rate

Instrument naming

Distance and instrument limitations

Expense

GPIB setup

Install the GPIB driver software

Install the GPIB cards in your computer

Connect the GPIB cables to your instrument

Set the GPIB address

Effect of GPIB line events on DMM6500

SPE, SPD

LAN communications

LAN cable connection

One-to-one connection

One-to-many connection

Two network card connection

Instrumentation connection to enterprise routers or servers

Set up LAN communications on the instrument

Check communication settings

Set up automatic LAN configuration

Set up manual LAN configuration

Set up LAN communications on the computer

Wait for the LAN status indicator to turn green

Use the LXI Discovery Tool

LAN status LEDs

LAN interface protocols

Raw socket connection

VXI-11 connection

Telnet connection

Dead socket connection

Reset LAN settings

LAN troubleshooting suggestions

USB communications

Using USB

Communicate with the instrument

RS-232

DMM6500 web interface

Web interface Home page

Identify the instrument

LXI Home page

Change the IP configuration through the web interface

Review events in the event log

Using the DMM6500 virtual front panel

Change the date and time through the web interface

Change the password through the web interface

Send commands using the web interface

Extract buffer data using the web interface

How to install the Keithley I/O Layer

Modifying, repairing, or removing Keithley I/O Layer software

Determining the command set you will use

System information

View system information from the front panel