Tektronix 2450 Reference manual

Model 2450

www.keithley.com

Interactive SourceMeter

Reference Manual

2450-901-01 Rev. D / May 2015



Instrument

*P245090101D*

2450-901-01D

A Greater Measure of Confidence

Model 2450

Interactive SourceMeter® Instrument

Reference Man ual

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 is strictly prohibited.

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

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

names are trademarks or registered trademarks of their respective holders.

PUC-Rio. Terms of license for the Lua software and associated documentation can be accessed at

the Lua licensing site (http://www.lua.org/license.html).

Document number: 2450-901-01 Rev. D / May 2015

Safety precaut ions

The following safety precautio ns should be observ ed before using this product and any associated instrum enta t ion . 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 qualified 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 Instruments 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 inst rum ent labe ls, do not connect any instru ment 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 sw itch ing cards, or mak ing inter nal 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 ma y be impaired.

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

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.

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

If a

The symbol on an instrument means caution, risk of danger. The user must refer to the operating instructions located in the user documentation in all cases where the symbol is mark ed on the instru ment .

The contact with these voltages.

The

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 dangers 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 h az ards that coul d dama ge the instrument. Such damage 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 — inc lud ing the power

transformer, test leads, and input jacks — must be purchased from Keithley Instruments. Standard fuses with applicable national safety approvals may be used if the rating and type are the same. 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 Instruments to maintain accuracy and functionality of the product). If you are unsure about the applicability of a replacement component, call a Keithley Instruments office for information.

To clean an instrument, use a damp cloth 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.

symbol on an instrument means caution, risk of electric shock. Use standard safety precautions to avoid personal

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

symbol indicates a connection terminal to the equipment frame.

Safety precaution revision as of January 2013.

Table of Contents

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

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

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

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

CD-ROM contents ................................................................................................................ 1-2

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

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

General ratings ..................................................................................................................... 1-4

General operation ..................................................................................................... 2-1

Power the instrument on or off ............................................................................................. 2-2

Front-panel overview ............................................................................................................ 2-3

Turn the Model 2450 output on or off ................................................................................... 2-6

Rear panel overview ............................................................................................................ 2-7

Touchscreen display ............................................................................................................ 2-8

Select items on the touchscreen ............................................................................................... 2-9

Scroll bars ................................................................................................................................. 2-9

Enter information ..................................................................................................................... 2-10

Adjust the backlight brightness and dimmer ............................................................................ 2-11

Event messages ...................................................................................................................... 2-12

Screen descriptions ............................................................................................................ 2-12

Home screen ........................................................................................................................... 2-13

Menu overview ................................................................................................................... 2-21

QuickSet menu ........................................................................................................................ 2-22

Source menu ........................................................................................................................... 2-23

Measure menu ........................................................................................................................ 2-26

Views menu............................................................................................................................. 2-31

Trigger menu ........................................................................................................................... 2-36

Scripts menu ........................................................................................................................... 2-38

System menu .......................................................................................................................... 2-40

Display features ................................................................................................................. 2-44

Setting the number of displayed digits .................................................................................... 2-44

Setting the display format ........................................................................................................ 2-45

Customizing a message for the USER swipe screen .............................................................. 2-46

Creating messages for interactive prompts ............................................................................. 2-47

Saving screen captures to a USB flash drive .......................................................................... 2-47

Dimensions ........................................................................................................................ 2-48

Handle and bumpers .......................................................................................................... 2-52

Removing the handle and bumpers ........................................................................................ 2-52

Remote communications interfaces ................................................................................... 2-54

Supported remote interfaces ................................................................................................... 2-54

Comparison of the communications inter fa ce s ........................................................................ 2-54

GPIB setup .............................................................................................................................. 2-56

LAN communications .............................................................................................................. 2-60

Table of Contents

Reference Manual

Model 2450 Interactive SourceMeter® Instrument

USB communications .............................................................................................................. 2-67

Model 2450 web interface ....................................................................................................... 2-71

How to install the Keithley I/O Layer ....................................................................................... 2-77

Modifying, repairing, or removing Keithley I/O Layer software ................................................ 2-78

Determining the command s et you will use ....................................................................... 2-78

System information ............................................................................................................ 2-79

Instrument sounds .............................................................................................................. 2-80

Test connections ................................................................................................................ 2-81

Basic connections ................................................................................................................... 2-82

Using the interlock ................................................................................................................... 2-83

Front- or rear-panel test conne ctio ns ...................................................................................... 2-85

Two-wire compared to four-wire measurements ..................................................................... 2-86

Test fixtures ............................................................................................................................. 2-93

Output-off state ....................................................................................................................... 2-94

Source-measure overview ................................................................................................. 2-96

Source and measure order...................................................................................................... 2-97

Source and measure through the front panel .......................................................................... 2-97

Source and measure using SCPI commands........................................................................ 2-108

Source and measure using TSP commands ......................................................................... 2-108

Protection ......................................................................................................................... 2-109

Overvoltage protection .......................................................................................................... 2-110

Source limits .......................................................................................................................... 2-111

Ranges ............................................................................................................................. 2-112

Source range ......................................................................................................................... 2-113

Measurement range .............................................................................................................. 2-115

Automatic reference measurements ................................................................................ 2-117

Setting autozero .................................................................................................................... 2-118

Source readback .............................................................................................................. 2-118

Setting source readback ....................................................................................................... 2-119

Source delay .................................................................................................................... 2-119

Setting the source delay ........................................................................................................ 2-120

Graphing .......................................................................................................................... 2-120

Setting up the Graph tab ....................................................................................................... 2-120

Using the Graph tab .............................................................................................................. 2-123

Binning data with the Histogram ...................................................................................... 2-124

Setting up the Histogram ....................................................................................................... 2-125

Saving setups ................................................................................................................... 2-126

Save a user setup to internal memory ................................................................................... 2-126

Save a user setup to a USB flash drive ................................................................................. 2-127

Copy a user setup ................................................................................................................. 2-127

Delete a user setup ............................................................................................................... 2-128

Recall a user setup ............................................................................................................... 2-128

Define the setup used when power is turned on ................................................................... 2-129

Resets .............................................................................................................................. 2-130

Reset the instrument ............................................................................................................. 2-131

Using the event log .......................................................................................................... 2-131

Information provided for each event log entry ....................................................................... 2-132

Event log settings .................................................................................................................. 2-132

Effects of errors on scripts..................................................................................................... 2-133

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Interactive SourceMeter® Instrument Reference Manual Table

Functions and features ............................................................................................ 3-1

Instrument access ................................................................................................................ 3-1

Changing the instrument access mode ..................................................................................... 3-2

Changing the password ............................................................................................................ 3-2

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

Relative offset ...................................................................................................................... 3-3

Establishing a relative offset value ............................................................................................ 3-4

Disabling the relative offset ....................................................................................................... 3-5

Calculations that you can apply to measurements .............................................................. 3-6

mx+b ......................................................................................................................................... 3-6

Percent ...................................................................................................................................... 3-7

Reciprocal (1/X) ........................................................................................................................ 3-7

Setting percent math operations ............................................................................................... 3-8

Setting mx+b math operations .................................................................................................. 3-8

Setting reciprocal math operations ............................................................................................ 3-9

Switching math on the SETTINGS swipe screen ...................................................................... 3-9

Displayed measurements .......................................................................................................... 3-9

Reading buffers .................................................................................................................. 3-10

Getting started with buffers ..................................................................................................... 3-10

Creating buffers ....................................................................................................................... 3-13

Setting reading buffer options ................................................................................................. 3-16

Selecting a buffer .................................................................................................................... 3-21

Using the front panel to store readings in the selected buffer ................................................. 3-24

Viewing and saving buffer content .......................................................................................... 3-24

Clearing buffers ....................................................................................................................... 3-30

Deleting buffers ....................................................................................................................... 3-30

Remote buffer operation ......................................................................................................... 3-31

Saving front-panel settings into a macro script .................................................................. 3-38

Recording a macro script ........................................................................................................ 3-38

Running a macro script ........................................................................................................... 3-39

Front-panel macro recording limitations .................................................................................. 3-39

Configuration lists ............................................................................................................... 3-39

Instrument configuration .......................................................................................................... 3-39

What is a configuration list? .................................................................................................... 3-40

What is a configuration index? ................................................................................................ 3-41

What settings are stored in a configuration list? ...................................................................... 3-41

Creating, storing, and performing operations on configuration lists and indexes .................... 3-45

Using the front panel for configuration list operations ............................................................. 3-45

Using remote commands for configurati on lis t oper ati ons ....................................................... 3-51

Sweep operation ................................................................................................................ 3-60

Linear staircase sweep ........................................................................................................... 3-60

Logarithmic staircase sweep ................................................................................................... 3-61

Setting up a sweep .................................................................................................................. 3-61

Aborting a sweep .................................................................................................................... 3-66

Sweep programming examples ............................................................................................... 3-67

Increasing the speed of sweeps .............................................................................................. 3-70

Digital I/O ........................................................................................................................... 3-70

Digital I/O connector and pinouts ............................................................................................ 3-71

Digital I/O port configuration .................................................................................................... 3-72

Digital I/O lines ........................................................................................................................ 3-74

Remote digital I/O commands ................................................................................................. 3-78

Digital I/O bit weighting ........................................................................................................... 3-80

Digital I/O programming examples .......................................................................................... 3-80

Table of Contents

Reference Manual

Model 2450 Interactive SourceMeter® Instrument

Measurement methods ...................................................................................................... 3-82

Continuous measurement triggering ....................................................................................... 3-82

Trigger key triggering .............................................................................................................. 3-83

Trigger model triggering .......................................................................................................... 3-83

Switching between measurement methods ............................................................................. 3-83

Triggering ........................................................................................................................... 3-83

Command interface triggering ................................................................................................. 3-84

Triggering using hardware lines .............................................................................................. 3-84

LAN triggering overview .......................................................................................................... 3-84

Trigger timers .......................................................................................................................... 3-86

Event blenders ........................................................................................................................ 3-89

Interactive triggering ................................................................................................................ 3-90

Trigger model ..................................................................................................................... 3-92

Trigger model blocks ............................................................................................................... 3-93

Predefined trigger models ..................................................................................................... 3-108

Assembling trigger model blocks ........................................................................................... 3-110

Running the trigger model ..................................................................................................... 3-111

Using trigger events to start actions in the trigger model ...................................................... 3-114

Limit testing and binning .................................................................................................. 3-117

Limit testing using the front-panel interface ........................................................................... 3-117

Set up a limit test using the remote interface ........................................................................ 3-119

TSP-Link System Expansion Interface ............................................................................ 3-133

TSP-Link connections ........................................................................................................... 3-133

TSP-Link nodes ..................................................................................................................... 3-135

Master and subordinates ....................................................................................................... 3-136

Initializing the TSP-Link system ............................................................................................ 3-136

Sending commands to TSP-Link nodes ................................................................................ 3-137

Using the reset() command ................................................................................................... 3-137

Terminating scripts on the TSP-Link system ......................................................................... 3-138

Triggering using TSP-Link synchroniz ation lines................................................................... 3-138

Running simultaneous test scripts ......................................................................................... 3-138

Using Model 2450 TSP-Link commands with other TSP-Link products ................................ 3-142

Remote TSP-Link commands ............................................................................................... 3-143

TSP-Net ........................................................................................................................... 3-144

Using TSP-Net with any ethernet-enabled instrument .......................................................... 3-145

Remote instrument events .................................................................................................... 3-146

TSP-Net instrument commands: General device control ...................................................... 3-146

TSP-Net instrument commands: TSP-enabled device control .............................................. 3-146

Example: Using tspnet commands ........................................................................................ 3-147

Source-measure considerations .............................................................................. 4-1

Circuit configurations ............................................................................................................ 4-1

Source current ........................................................................................................................... 4-1

Source voltage .......................................................................................................................... 4-3

Operating boundaries........................................................................................................... 4-4

Current source operating boundar ie s ........................................................................................ 4-5

Voltage limit boundary examples .............................................................................................. 4-5

Current limit boundary examples ............................................................................................... 4-7

Output transient recovery ..................................................................................................... 4-8

Load regulation .................................................................................................................... 4-8

Using NPLCs to adjust speed and accuracy ....................................................................... 4-8

Noise shield ........................................................................................................................ 4-10

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Interactive SourceMeter® Instrument Reference Manual Table

Safety shield ....................................................................................................................... 4-10

Safety shielding ....................................................................................................................... 4-11

Grounding .......................................................................................................................... 4-11

Noise and chassis ground ....................................................................................................... 4-11

Floating the Model 2450..................................................................................................... 4-12

Guarding ............................................................................................................................ 4-14

Using guard with a test fixture ................................................................................................. 4-14

Guard circuit drawing .............................................................................................................. 4-15

Sink operation .................................................................................................................... 4-15

Battery charge and discharge ............................................................................................ 4-16

Timing information .............................................................................................................. 4-17

Measurement settling time considerations .............................................................................. 4-17

Overtemperature protection .................................................................................................... 4-17

Calculating accurac y .......................................................................................................... 4-18

Calculating source or measure accuracy ................................................................................ 4-18

Calculate accuracy of a resistance measurement made by sourcing I and measuring V ........ 4-19

Offset-compensated ohm calculations ............................................................................... 4-20

Power calculations ............................................................................................................. 4-21

High-capacitance operation ............................................................................................... 4-21

Enabling the high capacitance feature .................................................................................... 4-22

Filtering measurement data ............................................................................................... 4-23

Repeating average filter .......................................................................................................... 4-23

Moving average filter ............................................................................................................... 4-24

Setting up the averaging filter.................................................................................................. 4-24

Order of operations ............................................................................................................ 4-25

Reset default values ........................................................................................................... 4-25

Default values ......................................................................................................................... 4-26

Introduction to SCPI commands .............................................................................. 5-1

Introduction to SCPI ............................................................................................................. 5-1

Command execution rules......................................................................................................... 5-1

Command messages ................................................................................................................ 5-1

SCPI command programming notes .................................................................................... 5-2

SCPI command formatting ........................................................................................................ 5-2

Using the SCPI command reference ......................................................................................... 5-5

Acquiring readings using SCPI commands.......................................................................... 5-9

SCPI command reference ......................................................................................... 6-1

:FETCh? .................................................................................................................................... 6-1

:MEASure? ................................................................................................................................ 6-4

:READ? ..................................................................................................................................... 6-6

*RCL ......................................................................................................................................... 6-9

*SAV ......................................................................................................................................... 6-9

CALCulate subsystem ........................................................................................................ 6-10

:CALCulate[1]:<function>:MATH:FORMat............................................................................... 6-10

:CALCulate[1]:<function>:MATH:MBFactor............................................................................. 6-12

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Reference Manual

Model 2450 Interactive SourceMeter® Instrument

:CALCulate[1]:<function>:MATH:MMFactor ............................................................................ 6-14

:CALCulate[1]:<function>:MATH:PERCent ............................................................................. 6-15

:CALCulate[1]:<function>:MATH:STATe ................................................................................. 6-16

:CALCulate2:<function>:LIMit<Y>:AUDible ............................................................................. 6-17

:CALCulate2:<function>:LIMit<Y>:CLEar:AUTO ..................................................................... 6-18

:CALCulate2:<function>:LIMit<Y>:CLEar[:IMMediate] ............................................................ 6-19

:CALCulate2:<function>:LIMit<Y>:FAIL? ................................................................................ 6-20

:CALCulate2:<function>:LIMit<Y>:LOWer[:DATA] .................................................................. 6-22

:CALCulate2:<function>:LIMit<Y>:STATe ............................................................................... 6-23

:CALCulate2:<function>:LIMit<Y>:UPPer[:DATA] ................................................................... 6-24

DIGital subsystem .............................................................................................................. 6-26

:DIGital:LINE<n>:MODE ......................................................................................................... 6-26

:DIGital:LINE<n>:STATe ......................................................................................................... 6-28

:DIGital:READ? ....................................................................................................................... 6-29

:DIGital:WRITe <n> ................................................................................................................. 6-30

DISPlay subsystem ............................................................................................................ 6-31

:DISPlay:CLEar ....................................................................................................................... 6-31

:DISPlay:<function>:DIGits...................................................................................................... 6-31

:DISPlay:LIGHt:STATe ............................................................................................................ 6-32

:DISPlay:READing:FORMat .................................................................................................... 6-33

:DISPlay:SCReen .................................................................................................................... 6-34

:DISPlay:USER<n>:TEXT[:DATA] .......................................................................................... 6-35

FORMat subsystem ........................................................................................................... 6-36

:FORMat:ASCii:PRECision ..................................................................................................... 6-36

:FORMat:BORDer ................................................................................................................... 6-37

:FORMat[:DATA] ..................................................................................................................... 6-38

OUTPut subsystem ............................................................................................................ 6-39

:OUTPut[1]:<function>:SMODe ............................................................................................... 6-39

:OUTPut[1]:INTerlock:TRIPped? ............................................................................................. 6-41

:OUTPut[1][:STATe] ................................................................................................................ 6-41

ROUTe subsystem ............................................................................................................. 6-42

:ROUTe:TERMinals ................................................................................................................ 6-42

SCRipt subsystem .............................................................................................................. 6-43

SCRipt:RUN ............................................................................................................................ 6-43

SENSe1 subsystem ........................................................................................................... 6-44

[:SENSe[1]]:<function>:AVERage:COUNt .............................................................................. 6-44

[:SENSe[1]]:<function>:AVERage[:STATe] ............................................................................. 6-46

[:SENSe[1]]:<function>:AVERage:TCONtrol ........................................................................... 6-47

[:SENSe[1]]:<function>:AZERo[:STATe] ................................................................................. 6-48

[:SENSe[1]]:<function>:DELay:USER<n> ............................................................................... 6-50

[:SENSe[1]]:<function>:NPLCycles ......................................................................................... 6-51

[:SENSe[1]]:<function>:OCOMpensated ................................................................................. 6-52

[:SENSe[1]]:<function>:RANGe:AUTO ................................................................................... 6-53

[:SENSe[1]]:<function>:RANGe:AUTO:LLIMit ......................................................................... 6-54

[:SENSe[1]]:<function>:RANGe:AUTO:ULIMit ........................................................................ 6-55

[:SENSe[1]]:<function>:RANGe[:UPPer] ................................................................................. 6-56

[:SENSe[1]]:<function>:RELative ............................................................................................ 6-58

[:SENSe[1]]:<function>:RELative:ACQuire ............................................................................. 6-59

[:SENSe[1]]:<function>:RELative:STATe ................................................................................ 6-60

[:SENSe[1]]:<function>:RSENse ............................................................................................. 6-61

[:SENSe[1]]:<function>:UNIT .................................................................................................. 6-62

[:SENSe[1]]:AZERo:ONCE...................................................................................................... 6-62

[:SENSe[1]]:CONFiguration:LIST:CATalog? ........................................................................... 6-63

[:SENSe[1]]:CONFiguration:LIST:CREate............................................................................... 6-64

[:SENSe[1]]:CONFiguration:LIST:DELete ............................................................................... 6-64

[:SENSe[1]]:CONFiguration:LIST:QUERy? ............................................................................. 6-65

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Interactive SourceMeter® Instrument Reference Manual Table

[:SENSe[1]]:CONFiguration:LIST:RECall ................................................................................ 6-66

[:SENSe[1]]:CONFiguration:LIST:SIZE? ................................................................................. 6-67

[:SENSe[1]]:CONFiguration:LIST:STORe ............................................................................... 6-68

[:SENSe[1]]:COUNt ................................................................................................................. 6-69

[:SENSe[1]]:FUNCtion[:ON] .................................................................................................... 6-70

SOURce subsystem ........................................................................................................... 6-71

:SOURce[1]:CONFiguration:LIST:CATalog? ........................................................................... 6-71

:SOURce[1]:CONFiguration:LIST:CREate .............................................................................. 6-71

:SOURce[1]:CONFiguration:LIST:DELete ............................................................................... 6-72

:SOURce[1]:CONFiguration:LIST:QUERy? ............................................................................ 6-73

:SOURce[1]:CONFiguration:LIST:RECall ............................................................................... 6-73

:SOURce[1]:CONFiguration:LIST:SIZE? ................................................................................. 6-74

:SOURce[1]:CONFiguration:LIST:STORe ............................................................................... 6-75

:SOURce[1]:<function>:DELay ................................................................................................ 6-76

:SOURce[1]:<function>:DELay:AUTO ..................................................................................... 6-77

:SOURce[1]:<function>:DELay:USER<n> .............................................................................. 6-78

:SOURce[1]:<function>:HIGH:CAPacitance ............................................................................ 6-79

:SOURce[1]:<function>[:LEVel][:IMMediate][:AMPLitude] ....................................................... 6-80

:SOURce[1]:<function>:<x>LIMit[:LEVel] ................................................................................ 6-81

:SOURce[1]:<function>:<x>LIMit[:LEVel]:TRIPped? ............................................................... 6-82

:SOURce[1]:FUNCtion[:MODE] ............................................................................................... 6-82

:SOURce[1]:<function>:PROTection[:LEVel] .......................................................................... 6-83

:SOURce[1]:<function>:PROTection[:LEVel]:TRIPped? ......................................................... 6-84

:SOURce[1]:<function>:RANGe .............................................................................................. 6-85

:SOURce[1]:<function>:RANGe:AUTO ................................................................................... 6-86

:SOURce[1]:<function>:READ:BACK ...................................................................................... 6-87

:SOURce[1]:LIST:<function> ................................................................................................... 6-88

:SOURce[1]:LIST:<function>:APPend ..................................................................................... 6-89

:SOURce[1]:LIST:<function>:POINts? .................................................................................... 6-90

:SOURce[1]:SWEep:<function>:LINear .................................................................................. 6-91

:SOURce[1]:SWEep:<function>:LINear:STEP ........................................................................ 6-93

:SOURce[1]:SWEep:<function>:LIST ...................................................................................... 6-95

:SOURce[1]:SWEep:<function>:LOG ...................................................................................... 6-97

STATus subsystem .......................................................................................................... 6-100

:STATus:CLEar ..................................................................................................................... 6-100

:STATus:OPERation:CONDition? ......................................................................................... 6-100

:STATus:OPERation:ENABle ................................................................................................ 6-101

:STATus:OPERation[:EVENt]? .............................................................................................. 6-101

:STATus:OPERation:MAP..................................................................................................... 6-102

:STATus:PRESet .................................................................................................................. 6-103

:STATus:QUEStionable:CONDition? .................................................................................... 6-104

:STATus:QUEStionable:ENABle ........................................................................................... 6-104

:STATus:QUEStionable:MAP ................................................................................................ 6-105

:STATus:QUEStionable[:EVENt]? ......................................................................................... 6-106

SYSTem subsystem ......................................................................................................... 6-107

:SYSTem:ACCess ................................................................................................................. 6-107

:SYSTem:BEEPer[:IMMediate] ............................................................................................. 6-108

:SYSTem:CLEar .................................................................................................................... 6-108

:SYSTem:COMMunication:LAN:CONFigure ......................................................................... 6-109

:SYSTem:COMMunication:LAN:MACaddress? ..................................................................... 6-110

:SYSTem:ERRor[:NEXT]?..................................................................................................... 6-111

:SYSTem:ERRor:CODE[:NEXT]? ......................................................................................... 6-112

:SYSTem:ERRor:COUNt?..................................................................................................... 6-112

:SYSTem:EVENtlog:COUNt? ................................................................................................ 6-113

:SYSTem:EVENtlog:NEXT? .................................................................................................. 6-114

:SYSTem:EVENtlog:POST.................................................................................................... 6-115

:SYSTem:EVENtlog:SAVE .................................................................................................... 6-116

:SYSTem:GPIB:ADDRess..................................................................................................... 6-116

:SYSTem:LFRequency? ....................................................................................................... 6-117

Table of Contents

Reference Manual

Model 2450 Interactive SourceMeter® Instrument

:SYSTem:PASSword:NEW ................................................................................................... 6-118

:SYSTem:POSetup ............................................................................................................... 6-118

:SYSTem:TIME ..................................................................................................................... 6-119

:SYSTem:VERSion? ............................................................................................................. 6-120

TRACe subsystem ........................................................................................................... 6-120

:TRACe:ACTual? .................................................................................................................. 6-120

:TRACe:ACTual:END? .......................................................................................................... 6-121

:TRACe:ACTual:STARt? ....................................................................................................... 6-122

:TRACe:CLEar ...................................................................................................................... 6-123

:TRACe:DATA? ..................................................................................................................... 6-124

:TRACe:DELete .................................................................................................................... 6-127

:TRACe:FILL:MODE ............................................................................................................. 6-127

:TRACe:LOG:STATe ............................................................................................................. 6-129

:TRACe:MAKE ...................................................................................................................... 6-130

:TRACe:POINts ..................................................................................................................... 6-132

:TRACe:SAVE ....................................................................................................................... 6-133

:TRACe:SAVE:APPend ......................................................................................................... 6-135

:TRACe:STATistics:AVERage? ............................................................................................. 6-136

:TRACe:STATistics:CLEar .................................................................................................... 6-137

:TRACe:STATistics:MAXimum? ............................................................................................ 6-138

:TRACe:STATistics:MINimum? ............................................................................................. 6-139

:TRACe:STATistics:PK2Pk? ................................................................................................. 6-140

:TRACe:STATistics:STDDev? ............................................................................................... 6-140

:TRACe:TRIGger ................................................................................................................... 6-141

:TRACe:WRITe:FORMat ....................................................................................................... 6-142

:TRACe:WRITe:READing...................................................................................................... 6-144

TRIGger subsystem ......................................................................................................... 6-146

:ABORt .................................................................................................................................. 6-146

:INITiate[:IMMediate] ............................................................................................................. 6-146

:TRIGger:BLENder<n>:CLEar ............................................................................................... 6-146

:TRIGger:BLENder<n>:MODE .............................................................................................. 6-147

:TRIGger:BLENder<n>:OVERrun? ....................................................................................... 6-148

:TRIGger:BLENder<n>:STIMulus<m> .................................................................................. 6-148

:TRIGger:BLOCk:BRANch:ALWays ...................................................................................... 6-150

:TRIGger:BLOCk:BRANch:COUNter .................................................................................... 6-150

:TRIGger:BLOCk:BRANch:COUNter:COUNt? ...................................................................... 6-151

:TRIGger:BLOCk:BRANch:COUNter:RESet ......................................................................... 6-152

:TRIGger:BLOCk:BRANch:DELTa ........................................................................................ 6-153

:TRIGger:BLOCk:BRANch:EVENt ........................................................................................ 6-154

:TRIGger:BLOCk:BRANch:LIMit:CONStant .......................................................................... 6-155

:TRIGger:BLOCk:BRANch:LIMit:DYNamic ........................................................................... 6-156

:TRIGger:BLOCk:BRANch:ONCE ......................................................................................... 6-157

:TRIGger:BLOCk:BRANch:ONCE:EXCLuded....................................................................... 6-158

:TRIGger:BLOCk:BUFFer:CLEar .......................................................................................... 6-159

:TRIGger:BLOCk:CONFig:NEXT .......................................................................................... 6-159

:TRIGger:BLOCk:CONFig:PREVious .................................................................................... 6-160

:TRIGger:BLOCk:CONFig:RECall ......................................................................................... 6-161

:TRIGger:BLOCk:DELay:CONStant ...................................................................................... 6-162

:TRIGger:BLOCk:DELay:DYNamic ....................................................................................... 6-163

:TRIGger:BLOCk:DIGital:IO .................................................................................................. 6-164

:TRIGger:BLOCk:LIST? ........................................................................................................ 6-165

:TRIGger:BLOCk:LOG:EVENt ............................................................................................... 6-165

:TRIGger:BLOCk:MEASure................................................................................................... 6-166

:TRIGger:BLOCk:NOP .......................................................................................................... 6-168

:TRIGger:BLOCk:NOTify ....................................................................................................... 6-168

:TRIGger:BLOCk:SOURce:STATe ........................................................................................ 6-169

:TRIGger:BLOCk:WAIT ......................................................................................................... 6-170

:TRIGger:DIGital<n>:IN:CLEar .............................................................................................. 6-172

:TRIGger:DIGital<n>:IN:EDGE .............................................................................................. 6-172

:TRIGger:DIGital<n>:IN:OVERrun? ...................................................................................... 6-173

Model 2450

tents

Interactive SourceMeter® Instrument Reference Manual Table of Con

:TRIGger:DIGital<n>:OUT:LOGic .......................................................................................... 6-174

:TRIGger:DIGital<n>:OUT:PULSewidth ................................................................................ 6-175

:TRIGger:DIGital<n>:OUT:STIMulus ..................................................................................... 6-176

:TRIGger:LAN<n>:IN:CLEar.................................................................................................. 6-177

:TRIGger:LAN<n>:IN:EDGE.................................................................................................. 6-177

:TRIGger:LAN<n>:IN:OVERrun? .......................................................................................... 6-178

:TRIGger:LAN<n>:OUT:CONNect:STATe ............................................................................ 6-179

:TRIGger:LAN<n>:OUT:IP:ADDRess .................................................................................... 6-179

:TRIGger:LAN<n>:OUT:LOGic .............................................................................................. 6-180

:TRIGger:LAN<n>:OUT:PROTocol ....................................................................................... 6-181

:TRIGger:LAN<n>:OUT:STIMulus ......................................................................................... 6-181

:TRIGger:LOAD "ConfigList" ................................................................................................. 6-183

:TRIGger:LOAD "DurationLoop" ............................................................................................ 6-185

:TRIGger:LOAD "Empty" ....................................................................................................... 6-186

:TRIGger:LOAD "GradeBinning" ........................................................................................... 6-187

:TRIGger:LOAD "LogicTrigger" ............................................................................................. 6-189

:TRIGger:LOAD "LoopUntilEvent" ......................................................................................... 6-190

:TRIGger:LOAD "SimpleLoop" .............................................................................................. 6-192

:TRIGger:LOAD "SortBinning" ............................................................................................... 6-193

:TRIGger:STATe? ................................................................................................................. 6-195

:TRIGger:TIMer<n>:CLEar .................................................................................................... 6-195

:TRIGger:TIMer<n>:COUNt .................................................................................................. 6-196

:TRIGger:TIMer<n>:DELay ................................................................................................... 6-198

:TRIGger:TIMer<n>:STARt:FRACtional ................................................................................ 6-198

:TRIGger:TIMer<n>:STARt:GENerate .................................................................................. 6-199

:TRIGger:TIMer<n>:STARt:OVERrun? ................................................................................. 6-200

:TRIGger:TIMer<n>:STARt:SEConds ................................................................................... 6-201

:TRIGger:TIMer<n>:STARt:STIMulus ................................................................................... 6-202

:TRIGger:TIMer<n>:STATe ................................................................................................... 6-203

Introduction to TSP operation.................................................................................. 7-1

Introduction to TSP operation .............................................................................................. 7-1

Controlling the instrument by sending individual command messages ..................................... 7-1

Queries ..................................................................................................................................... 7-3

USB flash drive path ................................................................................................................. 7-3

Information on scripting and programming ................................................................................ 7-3

Fundamentals of scripting for TSP ....................................................................................... 7-4

What is a script? ........................................................................................................................ 7-4

Run-time and nonvolatile memory storage of scripts ................................................................ 7-5

What can be included in scripts? ............................................................................................... 7-5

Working with script s .................................................................................................................. 7-5

Fundamentals of programming for TSP ............................................................................. 7-11

What is Lua? ........................................................................................................................... 7-12

Lua basics ............................................................................................................................... 7-12

Standard libraries .................................................................................................................... 7-26

Test Script Builder (TSB) ................................................................................................... 7-30

Installing the TSB software...................................................................................................... 7-30

Installing the TSB add-in ......................................................................................................... 7-30

Using Test Script Builder (TSB) .............................................................................................. 7-31

Project navigator ..................................................................................................................... 7-32

Script editor ............................................................................................................................. 7-33

Outline view............................................................................................................................. 7-33

Programming interaction ......................................................................................................... 7-33

Connecting an instrument in TSB ............................................................................................ 7-34

Creating a new TSP project .................................................................................................... 7-35

Adding a new TSP file to a project .......................................................................................... 7-36

Running a script ...................................................................................................................... 7-36

Table of Contents

Reference Manual

Model 2450 Interactive SourceMeter® Instrument

Creating a run configuration .................................................................................................... 7-37

Suggestions for increasing the available memory ............................................................. 7-41

About TSP Commands ...................................................................................................... 7-41

Beeper control ......................................................................................................................... 7-41

Digital I/O ................................................................................................................................ 7-41

Configuration list ..................................................................................................................... 7-42

Display .................................................................................................................................... 7-42

Event log ................................................................................................................................. 7-42

File .......................................................................................................................................... 7-43

Instrument identification .......................................................................................................... 7-43

Miscellaneous ......................................................................................................................... 7-43

LAN ......................................................................................................................................... 7-44

GPIB ....................................................................................................................................... 7-44

Reading buffer ......................................................................................................................... 7-45

Reset ....................................................................................................................................... 7-45

Queries and response messages ............................................................................................ 7-46

Scripting .................................................................................................................................. 7-46

SMU ........................................................................................................................................ 7-47

Status model ........................................................................................................................... 7-48

Time ........................................................................................................................................ 7-49

Triggering ................................................................................................................................ 7-49

Trigger model .......................................................................................................................... 7-51

TSP-Link ................................................................................................................................. 7-52

TSP-net ................................................................................................................................... 7-52

User strings ............................................................................................................................. 7-52

TSP command reference .......................................................................................... 8-1

TSP command programming notes ..................................................................................... 8-1

TSP syntax rules ....................................................................................................................... 8-1

Time and date values ................................................................................................................ 8-2

Local and remote control ........................................................................................................... 8-2

Using the TSP command reference ..................................................................................... 8-3

Command name, brief description, and summary table ............................................................ 8-4

Command usage ....................................................................................................................... 8-5

Command details ...................................................................................................................... 8-6

Example section ........................................................................................................................ 8-6

Related commands and information .......................................................................................... 8-6

TSP commands .................................................................................................................... 8-7

beeper.beep() ............................................................................................................................ 8-7

buffer.clearstats() ...................................................................................................................... 8-8

buffer.delete() ............................................................................................................................ 8-9

buffer.getstats() ......................................................................................................................... 8-9

buffer.make() ........................................................................................................................... 8-11

buffer.save() ............................................................................................................................ 8-13

buffer.saveappend() ................................................................................................................ 8-14

bufferVar.capacity ................................................................................................................... 8-15

bufferVar.clear() ...................................................................................................................... 8-17

bufferVar.dates ........................................................................................................................ 8-18

bufferVar.endindex .................................................................................................................. 8-19

bufferVar.fillmode .................................................................................................................... 8-20

bufferVar.formattedreadings.................................................................................................... 8-21

bufferVar.fractionalseconds..................................................................................................... 8-22

bufferVar.logstate .................................................................................................................... 8-23

bufferVar.n .............................................................................................................................. 8-24

bufferVar.readings ................................................................................................................... 8-25

bufferVar.relativetimestamps................................................................................................... 8-26

bufferVar.seconds ................................................................................................................... 8-27

Model 2450

of Contents

Interactive SourceMeter® Instrument Refer en ce Manual Table

bufferVar.sourceformattedvalues ............................................................................................ 8-28

bufferVar.sourcestatuses ........................................................................................................ 8-29

bufferVar.sourceunits .............................................................................................................. 8-30

bufferVar.sourcevalues ........................................................................................................... 8-31

bufferVar.startindex ................................................................................................................. 8-33

bufferVar.statuses ................................................................................................................... 8-34

bufferVar.times ........................................................................................................................ 8-35

bufferVar.timestamps .............................................................................................................. 8-36

bufferVar.units ......................................................................................................................... 8-38

buffer.write.format() ................................................................................................................. 8-40

buffer.write.reading() ............................................................................................................... 8-42

createconfigscript() .................................................................................................................. 8-44

dataqueue.add() ...................................................................................................................... 8-44

dataqueue.CAPACITY ............................................................................................................ 8-45

dataqueue.clear() .................................................................................................................... 8-46

dataqueue.count ..................................................................................................................... 8-47

dataqueue.next() ..................................................................................................................... 8-47

delay() ..................................................................................................................................... 8-48

digio.line[N].mode ................................................................................................................... 8-49

digio.line[N].reset() .................................................................................................................. 8-51

digio.line[N].state ..................................................................................................................... 8-52

digio.readport() ........................................................................................................................ 8-52

digio.writeport() ....................................................................................................................... 8-53

display.changescreen() ........................................................................................................... 8-54

display.clear() .......................................................................................................................... 8-55

display.delete() ........................................................................................................................ 8-55

display.input.number() ............................................................................................................. 8-56

display.input.option() ............................................................................................................... 8-58

display.input.prompt() .............................................................................................................. 8-60

display.input.string() ................................................................................................................ 8-61

display.lightstate ...................................................................................................................... 8-63

display.prompt() ...................................................................................................................... 8-64

display.readingformat .............................................................................................................. 8-65

display.settext() ....................................................................................................................... 8-66

display.waitevent() .................................................................................................................. 8-67

eventlog.clear() ....................................................................................................................... 8-68

eventlog.getcount() ................................................................................................................. 8-68

eventlog.next() ........................................................................................................................ 8-69

eventlog.post() ........................................................................................................................ 8-70

eventlog.save() ........................................................................................................................ 8-71

exit() ........................................................................................................................................ 8-72

file.close() ................................................................................................................................ 8-72

file.flush()................................................................................................................................. 8-73

file.mkdir() ............................................................................................................................... 8-74

file.open() ................................................................................................................................ 8-74

file.read() ................................................................................................................................. 8-75

file.usbdriveexists() ................................................................................................................. 8-76

file.write()................................................................................................................................. 8-76

format.asciiprecision ............................................................................................................... 8-77

format.byteorder ...................................................................................................................... 8-78

format.data .............................................................................................................................. 8-79

gpib.address ............................................................................................................................ 8-80

lan.ipconfig() ............................................................................................................................ 8-81

lan.lxidomain ........................................................................................................................... 8-82

lan.macaddress ....................................................................................................................... 8-82

localnode.access ..................................................................................................................... 8-83

localnode.gettime() .................................................................................................................. 8-84

localnode.linefreq .................................................................................................................... 8-84

localnode.model ...................................................................................................................... 8-85

localnode.password ................................................................................................................ 8-85

localnode.prompts ................................................................................................................... 8-86

Table of Contents

Reference Manual

Model 2450 Interactive SourceMeter® Instrument

localnode.prompts4882 ........................................................................................................... 8-87

localnode.serialno ................................................................................................................... 8-87

localnode.settime() .................................................................................................................. 8-88

localnode.showevents ............................................................................................................. 8-89

localnode.version .................................................................................................................... 8-90

node[N].execute() .................................................................................................................... 8-91

node[N].getglobal() .................................................................................................................. 8-91

node[N].setglobal() .................................................................................................................. 8-92

opc() ........................................................................................................................................ 8-93

print() ....................................................................................................................................... 8-93

printbuffer().............................................................................................................................. 8-94

printnumber() ........................................................................................................................... 8-97

reset() ...................................................................................................................................... 8-98

script.delete() .......................................................................................................................... 8-99

script.load() ............................................................................................................................. 8-99

scriptVar.run() ....................................................................................................................... 8-100

scriptVar.save() ..................................................................................................................... 8-101

scriptVar.source .................................................................................................................... 8-102

smu.interlock.tripped ............................................................................................................. 8-103

smu.measure.autorange ....................................................................................................... 8-103

smu.measure.autorangehigh................................................................................................. 8-104

smu.measure.autorangelow .................................................................................................. 8-105

smu.measure.autozero.enable .............................................................................................. 8-106

smu.measure.autozero.once() .............................................................................................. 8-107

smu.measure.configlist.catalog() ........................................................................................... 8-107

smu.measure.configlist.create() ............................................................................................ 8-108

smu.measure.configlist.delete() ............................................................................................ 8-109

smu.measure.configlist.query() ............................................................................................. 8-110

smu.measure.configlist.recall() .............................................................................................. 8-112

smu.measure.configlist.size() ................................................................................................ 8-113

smu.measure.configlist.store() .............................................................................................. 8-113

smu.measure.count ............................................................................................................... 8-114

smu.measure.displaydigits .................................................................................................... 8-117

smu.measure.filter.count ....................................................................................................... 8-118

smu.measure.filter.enable ..................................................................................................... 8-118

smu.measure.filter.type ......................................................................................................... 8-119

smu.measure.func ................................................................................................................. 8-120

smu.measure.limit[Y].audible ................................................................................................ 8-122

smu.measure.limit[Y].autoclear ............................................................................................. 8-123

smu.measure.limit[Y].clear().................................................................................................. 8-124

smu.measure.limit[Y].enable ................................................................................................. 8-124

smu.measure.limit[Y].fail ....................................................................................................... 8-125

smu.measure.limit[Y].high.value ........................................................................................... 8-127

smu.measure.limit[Y].low.value ............................................................................................. 8-128

smu.measure.math.enable .................................................................................................... 8-129

smu.measure.math.format .................................................................................................... 8-130

smu.measure.math.mxb.bfactor ............................................................................................ 8-131

smu.measure.math.mxb.mfactor ........................................................................................... 8-132

smu.measure.math.percent................................................................................................... 8-133

smu.measure.nplc ................................................................................................................. 8-134

smu.measure.offsetcompensation ........................................................................................ 8-135

smu.measure.range .............................................................................................................. 8-136

smu.measure.read() .............................................................................................................. 8-137

smu.measure.readwithtime() ................................................................................................. 8-138

smu.measure.rel.acquire() .................................................................................................... 8-139

smu.measure.rel.enable ........................................................................................................ 8-140

smu.measure.rel.level ........................................................................................................... 8-141

smu.measure.sense .............................................................................................................. 8-142

smu.measure.terminals ......................................................................................................... 8-143

smu.measure.unit .................................................................................................................. 8-144

smu.measure.userdelay[N] ................................................................................................... 8-145

Model 2450

of Contents

Interactive SourceMeter® Instrument Reference Manual Table

smu.reset() ............................................................................................................................ 8-146

smu.source.autorange .......................................................................................................... 8-146

smu.source.autodelay ........................................................................................................... 8-147

smu.source.configlist.catalog() .............................................................................................. 8-148

smu.source.configlist.create() ............................................................................................... 8-148

smu.source.configlist.delete() ................................................................................................ 8-150

smu.source.configlist.query() ................................................................................................ 8-151

smu.source.configlist.recall() ................................................................................................. 8-152

smu.source.configlist.size() ................................................................................................... 8-153

smu.source.configlist.store() ................................................................................................. 8-153

smu.source.delay .................................................................................................................. 8-154

smu.source.func .................................................................................................................... 8-155

smu.source.highc .................................................................................................................. 8-156

smu.source.level ................................................................................................................... 8-156

smu.source.offmode .............................................................................................................. 8-157

smu.source.output ................................................................................................................. 8-159

smu.source.protect.level ....................................................................................................... 8-160

smu.source.protect.tripped .................................................................................................... 8-161

smu.source.range ................................................................................................................. 8-161

smu.source.readback ............................................................................................................ 8-163

smu.source.sweeplinear() ..................................................................................................... 8-164

smu.source.sweeplinearstep() .............................................................................................. 8-166

smu.source.sweeplist() ......................................................................................................... 8-168

smu.source.sweeplog() ......................................................................................................... 8-170

smu.source.userdelay[N] ...................................................................................................... 8-172

smu.source.xlimit.level .......................................................................................................... 8-173

smu.source.xlimit.tripped....................................................................................................... 8-174

status.clear() ......................................................................................................................... 8-175

status.condition ..................................................................................................................... 8-175

status.operation.condition ..................................................................................................... 8-176

status.operation.enable ......................................................................................................... 8-177

status.operation.event ........................................................................................................... 8-178

status.operation.getmap() ..................................................................................................... 8-179

status.operation.setmap()...................................................................................................... 8-180

status.preset() ....................................................................................................................... 8-181

status.questionable.condition ................................................................................................ 8-181

status.questionable.enable.................................................................................................... 8-182

status.questionable.event ..................................................................................................... 8-182

status.questionable.getmap() ................................................................................................ 8-183

status.questionable.setmap() ................................................................................................ 8-184

status.request_enable ........................................................................................................... 8-185

status.standard.enable .......................................................................................................... 8-186

status.standard.event ............................................................................................................ 8-188

timer.cleartime() .................................................................................................................... 8-189

timer.gettime() ....................................................................................................................... 8-189

trigger.blender[N].clear() ....................................................................................................... 8-190

trigger.blender[N].orenable.................................................................................................... 8-190

trigger.blender[N].overrun ..................................................................................................... 8-191

trigger.blender[N].reset() ....................................................................................................... 8-192

trigger.blender[N].stimulus[M] ............................................................................................... 8-192

trigger.blender[N].wait() ......................................................................................................... 8-193

trigger.clear() ......................................................................................................................... 8-194

trigger.digin[N].clear() ............................................................................................................ 8-195

trigger.digin[N].edge .............................................................................................................. 8-196

trigger.digin[N].overrun .......................................................................................................... 8-197

trigger.digin[N].wait() ............................................................................................................. 8-197

trigger.digout[N].assert() ....................................................................................................... 8-198

trigger.digout[N].logic ............................................................................................................ 8-199

trigger.digout[N].pulsewidth ................................................................................................... 8-199

trigger.digout[N].release()...................................................................................................... 8-200

trigger.digout[N].stimulus ...................................................................................................... 8-201

Table of Contents

Reference Manual

Model 2450 Interactive SourceMeter® Instrument

trigger.lanin[N].clear() ............................................................................................................ 8-202

trigger.lanin[N].edge .............................................................................................................. 8-203

trigger.lanin[N].overrun .......................................................................................................... 8-203

trigger.lanin[N].wait() ............................................................................................................. 8-204

trigger.lanout[N].assert() ....................................................................................................... 8-205

trigger.lanout[N].connect() ..................................................................................................... 8-206

trigger.lanout[N].connected ................................................................................................... 8-206

trigger.lanout[N].disconnect() ................................................................................................ 8-207

trigger.lanout[N].ipaddress .................................................................................................... 8-208

trigger.lanout[N].logic ............................................................................................................ 8-209

trigger.lanout[N].protocol ....................................................................................................... 8-209

trigger.lanout[N].stimulus ...................................................................................................... 8-210

trigger.model.abort() .............................................................................................................. 8-212

trigger.model.getblocklist() .................................................................................................... 8-212

trigger.model.getbranchcount() ............................................................................................. 8-213

trigger.model.initiate() ........................................................................................................... 8-213

trigger.model.load() — Con f ig List ......................................................................................... 8-214

trigger.model.load() — Duration Loop ................................................................................... 8-216

trigger.model.load() — Empty ............................................................................................... 8-217

trigger.model.load() — GradeBinning .................................................................................... 8-218

trigger.model.load() — LogicTrigger ...................................................................................... 8-220

trigger.model.load() — LoopUntilEvent ................................................................................. 8-221

trigger.model.load() — SimpleLoop ....................................................................................... 8-223

trigger.model.load() — SortBinning ....................................................................................... 8-225

trigger.model.setblock() — trigger.BLOCK_BRANCH_ALWAYS .......................................... 8-226

trigger.model.setblock() — trigger.BLOCK_BRANCH_COUNTER ....................................... 8-227

trigger.model.setblock() — trigger.BLOCK_BRANCH_DELTA ............................................. 8-228

trigger.model.setblock() — trigger.BLOCK_BRANCH_LIMIT_CONSTANT .......................... 8-230

trigger.model.setblock() — trigger.BLOCK_BRANCH_LIMIT_DYNAMIC ............................. 8-231

trigger.model.setblock() — trigger.BLOCK_BRANCH_ON_EVENT ...................................... 8-232

trigger.model.setblock() — trigger.BLOCK_BRANCH_ONCE............................................... 8-234

trigger.model.setblock() — trigger.BLOCK_BRANCH_ONCE_EXCLUDED ......................... 8-234

trigger.model.setblock() — trigger.BLOCK_BUFFER_CLEAR .............................................. 8-235

trigger.model.setblock() — trigger.BLOCK_CONFIG_NEXT ................................................ 8-236

trigger.model.setblock() — trigger.BLOCK_CONFIG_PREV ................................................ 8-236

trigger.model.setblock() — trigger.BLOCK_CONFIG_RECALL ............................................ 8-237

trigger.model.setblock() — trigger.BLOCK_DELAY_CONSTANT ......................................... 8-238

trigger.model.setblock() — trigger.BLOCK_DELAY_DYNAMIC ............................................ 8-239

trigger.model.setblock() — trigger.BLOCK_DIGITAL_IO ...................................................... 8-240

trigger.model.setblock() — trigger.BLOCK_LOG_EVENT .................................................... 8-241

trigger.model.setblock() — trigger.BLOCK_MEASURE ........................................................ 8-242

trigger.model.setblock() — trigger.BLOCK_NOP .................................................................. 8-243

trigger.model.setblock() — trigger.BLOCK_NOTIFY ............................................................. 8-243

trigger.model.setblock() — trigger.BLOCK_RESET_BRANCH_COUNT .............................. 8-244

trigger.model.setblock() — trigger.BLOCK_SOURCE_OUTPUT .......................................... 8-246

trigger.model.setblock() — trigger.BLOCK_WAIT ................................................................. 8-247

trigger.model.state() .............................................................................................................. 8-249

trigger.timer[N].clear() ........................................................................................................... 8-250

trigger.timer[N].count ............................................................................................................. 8-250

trigger.timer[N].delay ............................................................................................................. 8-252

trigger.timer[N].delaylist ........................................................................................................ 8-253

trigger.timer[N].enable ........................................................................................................... 8-254

trigger.timer[N].reset() ........................................................................................................... 8-255

trigger.timer[N].start.fractionalseconds .................................................................................. 8-256

trigger.timer[N].start.generate ............................................................................................... 8-256

trigger.timer[N].start.overrun ................................................................................................. 8-257

trigger.timer[N].start.seconds ................................................................................................ 8-258

trigger.timer[N].start.stimulus ................................................................................................ 8-258

trigger.timer[N].wait() ............................................................................................................. 8-260

trigger.tsplinkin[N].clear() ...................................................................................................... 8-260

trigger.tsplinkin[N].edge ........................................................................................................ 8-261

Model 2450

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Interactive SourceMeter® Instrument Reference Manual Table

trigger.tsplinkin[N].overrun .................................................................................................... 8-262

trigger.tsplinkin[N].wait() ........................................................................................................ 8-262

trigger.tsplinkout[N].assert() .................................................................................................. 8-263

trigger.tsplinkout[N].logic ....................................................................................................... 8-264

trigger.tsplinkout[N].pulsewidth ............................................................................................. 8-264

trigger.tsplinkout[N].release() ................................................................................................ 8-265

trigger.tsplinkout[N].stimulus ................................................................................................. 8-266

trigger.wait() .......................................................................................................................... 8-267

tsplink.group .......................................................................................................................... 8-268

tsplink.initialize() .................................................................................................................... 8-269

tsplink.line[N].mode ............................................................................................................... 8-270

tsplink.line[N].reset() ............................................................................................................. 8-270

tsplink.line[N].state ................................................................................................................ 8-271

tsplink.master ........................................................................................................................ 8-272

tsplink.node ........................................................................................................................... 8-272

tsplink.readport() ................................................................................................................... 8-273

tsplink.state ........................................................................................................................... 8-273

tsplink.writeport() ................................................................................................................... 8-274

tspnet.clear() ......................................................................................................................... 8-274

tspnet.connect() .................................................................................................................... 8-275

tspnet.disconnect() ................................................................................................................ 8-276

tspnet.execute() .................................................................................................................... 8-277

tspnet.idn() ............................................................................................................................ 8-278

tspnet.read() .......................................................................................................................... 8-279

tspnet.readavailable() ............................................................................................................ 8-280

tspnet.reset() ......................................................................................................................... 8-281

tspnet.termination() ............................................................................................................... 8-281

tspnet.timeout ........................................................................................................................ 8-282

tspnet.tsp.abort() ................................................................................................................... 8-283

tspnet.tsp.abortonconnect ..................................................................................................... 8-283

tspnet.tsp.rbtablecopy() ......................................................................................................... 8-284

tspnet.tsp.runscript() ............................................................................................................. 8-285

tspnet.write() ......................................................................................................................... 8-286

upgrade.previous() ................................................................................................................ 8-287

upgrade.unit() ........................................................................................................................ 8-287

userstring.add() ..................................................................................................................... 8-288

userstring.catalog() ............................................................................................................... 8-288

userstring.delete() ................................................................................................................. 8-289

userstring.get() ...................................................................................................................... 8-290

waitcomplete() ....................................................................................................................... 8-290

Frequently asked questions (FAQs) ........................................................................ 9-1

I see a command that is not in the manual. What is it? ....................................................... 9-2

How do I display the instrument's serial number? ............................................................... 9-2

What VISA resource name is required? ............................................................................... 9-2

Can I use Agilent GPIB cards with Keithley drivers? ........................................................... 9-3

How do I check the USB driver for the device? ................................................................... 9-3

Which Microsoft Windows operating systems are supported? ............................................ 9-4

What to do if the GPIB controller is not recognized? ........................................................... 9-5

I'm receiving GPIB timeout errors. What should I do? ......................................................... 9-5

How do I change the command set? ................................................................................... 9-5

How do I upgrade the firmware? .......................................................................................... 9-7

Where can I find updated drivers? ....................................................................................... 9-7

Table

of Contents Model 2450 Interactive SourceMeter® Instrument

Reference Manual

Why can't the Model 2450 read my USB flash drive?.......................................................... 9-8

How do I download measurements onto the USB flash drive? ........................................... 9-8

How do I save the present state of the instrument? ............................................................ 9-9

Why did my settings change? .............................................................................................. 9-9

What is NPLC? ................................................................................................................... 9-10

What are the Quick Setup options? ................................................................................... 9-10

What is the output-off state? .............................................................................................. 9-11

How do I store readings into the buffer? ............................................................................ 9-12

What should I do if I get an 5074 interlock error? .............................................................. 9-13

How do I trigger a sweep? ................................................................................................. 9-13

What are source limits?...................................................................................................... 9-14

What is offset compensation? ............................................................................................ 9-14

What is a configuration list? ............................................................................................... 9-14

Why do I keep seeing the "Undefined header" error? ....................................................... 9-15

Why do I see the "incompatible settings" message? ......................................................... 9-15

Why do I see the "Query interrupted" error? ...................................................................... 9-15

Why do I see the "Query unterminated" error? .................................................................. 9-16

How do I use the digital I/O port? ....................................................................................... 9-16

How do I trigger other instruments? ................................................................................... 9-16

Next steps ............................................................................................................... 10-1

Additional Model 2450 information ..................................................................................... 10-1

Maintenance .............................................................................................................. A-1

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

Line fuse replacement .......................................................................................................... A-1

Front-panel display ............................................................................................................... A-2

Cleaning the front-panel display ................................................................................................ A-2

Abnormal display operation ....................................................................................................... A-2

Removing ghost images or contrast irregularities ..................................................................... A-2

Upgrading the firmware ........................................................................................................ A-3

From the front panel .................................................................................................................. A-4

Using TSP ................................................................................................................................. A-4

Using SCPI................................................................................................................................ A-5

Using TSB ................................................................................................................................. A-6

Common commands ................................................................................................ B-1

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

*CLS .......................................................................................................................................... B-2

*ESE ......................................................................................................................................... B-3

*ESR? ....................................................................................................................................... B-5

Model 2450

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Interactive SourceMeter® Instrument Reference Manual Table

*IDN? ........................................................................................................................................ B-6

*LANG ....................................................................................................................................... B-7

*OPC ......................................................................................................................................... B-8

*RST ......................................................................................................................................... B-8

*SRE ......................................................................................................................................... B-9

*STB? ...................................................................................................................................... B-10

*TRG ....................................................................................................................................... B-10

*TST? ...................................................................................................................................... B-11

*WAI ........................................................................................................................................ B-11

Status model ............................................................................................................. C-1

Overview .............................................................................................................................. C-1

Standard Event Register ........................................................................................................... C-3

Programmable status register sets ............................................................................................ C-5

Status Byte Register ............................................................................................................... C-11

Queues ................................................................................................................................... C-13

Serial polling and SRQ ....................................................................................................... C-14

Programming enable registers ........................................................................................... C-14

Reading the registers ......................................................................................................... C-15

Understanding bit settings ................................................................................................. C-16

Clearing registers ............................................................................................................... C-17

Status model programming examples ............................................................................... C-18

SRQ when the SMU reaches its source limit........................................................................... C-18

SRQ when trigger model is finished ........................................................................................ C-19

SRQ on trigger model notify event .......................................................................................... C-20

SRQ on error ........................................................................................................................... C-23

SRQ when reading buffer becomes full ................................................................................... C-23

SRQ when a measurement completes .................................................................................... C-25

Model 2450 in a Model 2400 application .................................................................. D-1

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

Selecting the 2400 SCPI command set ............................................................................... D-2

Front-panel operation with SCPI 2400 command set .......................................................... D-2

Home screen display ................................................................................................................. D-2

Status and error indicators when the SCPI 2400 command set is selected .............................. D-3

Event messages ........................................................................................................................ D-5

Menus when the SCPI 2400 command set is selected ............................................................. D-5

Series 2400 to Model 2450 command differences .............................................................. D-6

Model 2400 commands that are supported but operate differently ........................................... D-7

Model 2400 commands that are not supported in Model 2450.................................................. D-7

Commands that were added to the SCPI 2400 command set................................................... D-9

Using Trigger Link or Digital I/O ......................................................................................... D-10

Convert Model 2400 to Model 2450 code ................................................................ E-1

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

Significant differences .......................................................................................................... E-1

Acquiring readings .................................................................................................................... E-1

Display commands .................................................................................................................... E-2

Making resistance measurements ............................................................................................. E-2

Table of Contents

Reference Manual

Model 2450 Interactive SourceMeter® Instrument

Compliance is now limit ............................................................................................................. E-3

Event log ................................................................................................................................... E-3

Buffers ....................................................................................................................................... E-3

Sweeps ..................................................................................................................................... E-4

Trigger model ............................................................................................................................ E-5

Model 2400 to Model 2450 SCPI command cross-reference .............................................. E-5

CALCulate[1] subsystem ........................................................................................................... E-6

CALCulate2 subsystem ............................................................................................................. E-7

CALCulate3 subsystem ............................................................................................................. E-9

FETCh? ................................................................................................................................... E-10

CONFigure .............................................................................................................................. E-10

DISPlay subsystem ................................................................................................................. E-10

FORMat subsystem ................................................................................................................ E-11

MEASure:<function>? ............................................................................................................. E-12

OUTPut subsystem ................................................................................................................. E-12

READ? .................................................................................................................................... E-12

ROUTe subsystem .................................................................................................................. E-13

SENSe subsystem .................................................................................................................. E-13

SOURce[1] subsystem ............................................................................................................ E-16

SOURce2 subsystem .............................................................................................................. E-22

STATus subsystem ................................................................................................................. E-23

SYStem subsystem ................................................................................................................. E-24

TRACe subsystem .................................................................................................................. E-27

TRIGger subsystem ................................................................................................................ E-28

Common commands ............................................................................................................... E-31

Index ........................................................................................................................... I-1

General ratings ......................................................................... 1-4

Welcome

Thank you for choosing a Keithley Instruments product. The Model 2450 Interactive SourceMeter® instrument is a precise, low-noise instrument that combines a stable DC power supply, true current source, electronic load, and a high-impedance multimeter. The design of this instrument features intuitive setup and control, enhanced signal quality and range, and better resistivity and resistance capabilities than similar products on the market.

Section 1

Introduction

In this section:

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

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

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

CD-ROM contents .................................................................... 1-2

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

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

With 0.012 percent basic accuracy at 6½-digit resolution, the Model 2450 delivers 59 readings per second over the IEEE-488 bus. At 4½-digit resolution, it can read up to 3000 readings per second into its internal buffer.

Extended warranty

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 revie w the information in this documentation, please co ntac t your local Keithley Instruments office, sales partner, or distributor. You can also call Keithley Instruments corporate headquarters (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 the Ke ith ley website (see http://www.keithley.com - http://www.keithley.com).

Section

Reference Manual

1: Introduction Model 2450 Interactive SourceMeter® Instrument

CD-ROM contents

The following CD-ROM is shipped with each Model 2450 instrument:

• Interactive SourceMeter

part number 24GDI-950-01)

The Interactive SourceMeter SMU Instruments Product Information CD-ROM contains:

• Quick Start Guide: Provides unpacking instructions, describes basic connections, reviews basic

operation information, and provides a quick test procedure to ensure the instrument is operational.

• User's Manual: Provides application examples that you can use as a starting point to create your

own applications.

• Reference Manual: Includes advanced operation topics, maintenance information,

troubleshooting procedures, and in-depth descriptions of programming commands.

• KickStart Startup Software Quick Start Guide: Provides instructions for the KickStart Startup

Software, which allows you to quickly make measurements and get results without having to program test scripts.

• Accessories information: Documentation for accessories that are available for the Model 2450.

SMU Instruments Product Information CD-ROM (Keithley Instruments

For the latest drivers and additional support information, see the Keithley Instruments website (http://www.keithley.com).

Organization of manual sections

The information in this manual is organized into the following major categories:

• General operation: Describes the components of the instrument and basic operation.

• Functions and features: Describes features and functions, such as relative offset, filters,

reading buffers, configuration lists, triggering, the digital I/O port, and TSP-Link synchronization lines.

• Source-measure con side rat ion s: Describes best practices and recommended procedures that

can increase measurement speed, accuracy, and sensitivity.

• 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 Model 2450.

• 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

• TSP command reference: Contains programming notes and an alphabetical listing of all TSP

commands available for the Model 2450.

• Frequently asked questions: Contains information that answers commonly asked questions.

)

) software, TSP-Link system expansion, and TSP-Net.

1-2 2450-901-01 Rev. D / May 2015

Model 2450

Introduction

Interactive SourceMeter® Instrument Reference Manual Section 1:

• Next steps: Contains sources of additional information.

• Maintenance: Contains information about instrument maintenance, including line fuse

replacement and firmware upgrades.

• Common commands: Contains descriptions of IEEE Std. 488.2 common commands.

• Status model: Describes the Model 2450 status model.

• Using the Model 2450 in a Model 2400 appli cation: Provides information on using the Model

2450 as a drop-in replacement for a Model 2400 and information on how to convert Model 2400 SCPI code to Model 2450 SCPI code.

• Converting Model 2400 code to Model 2450 code: Provides information about converting

existing Series 2400 SCPI code to Model 2450 code.

The PDF version of this manual contains bookmarks for each section. The manual sections are also listed in the Table of Contents at the beginning of this manual.

For more information about bookmarks, see Adobe

Capabilities and features

The Model 2450 has the following features:

Acrobat® or Reader® help.

• High-resolution, five-inch touchscreen display with enhanced graphical data visualization and

on-screen debug and error histories

• Voltage source noise for 10 Hz to 1 MHz (RMS) is 2 mV typical into a resistive load

• Ability to perform sensitive measurements on low-level signals

• Higher V-sense levels, easier 4-wire configuration, and better four-point probing performance

than earlier models

• Expanded voltage, current, and resistance measurement ranges

• Simplified trigger model with source and memory configuration lists

• Front-panel USB-A connector for flash drive support; rear-panel USB-B connector for

communication, control, and data transfer

• Five front-panel banana jacks, front-panel safety earth ground, and four rear-panel triaxial

connectors

• Backward compatibility with Model 2400 SCPI programs using the SCPI 2400 command set

Some additional capabilities of the Model 2450:

• Source-measure sweep capabilities (linear and logarithmic staircase sweeps)

• Four-quadrant source and sink operation

• Limit testing with a built-in comparator for pass/fail testing

• Digital I/O for stand-alone binning operations or interface to a component handler

• SCPI and Test Script Processor (TSP

(IEEE-488/GPIB, USB, and LAN)

) programming languages with remote interface ports

• Built-in math expressions and user-defined expressions (using a remote interface)

• Up to one-million-point reading buffer with seven setups (five user defaults, factory default, *RST

default) that can be stored and recalled

2450-901-01 Rev. D / May 2015 1-3

Section

Reference Manual

RMS

Input and output connections

See Rear panel overview (on page 2-7)

Environmental conditions

For indoor use only

Pollution degree: 1 or 2

1: Introduction Model 2450 Interactive SourceMeter® Instrument

• Resistance and power measurement functions

• High-capacitance mode for load impedance up to 50 µF (microfarads)

• Filtering to reduce reading noise

• Overcurrent and overvoltage protection

• Safety interlock through rear-panel connector

• Trigger model supports extensive triggering and synchronization schemes at hardware speeds

• LXI

• TSP-Link

• Supports IEEE-488 (GPIB), USB, and ethernet local area network (LAN) connections

Core Specification 1.4 compliance

instruments in a master and subordinate configuration. TSP-Link is a high-speed trigger synchronization and communication bus; advanced Test Script Processor (TSP features enable parallel script execution across a network

General ratings

The Model 2450 instrument's general ratings and connections are listed in the following table.

Category Specification

Supply voltage range

system expansion interface, which test system builders can use to connect multiple

) scripting engine

100 V

to 240 V

, 50 Hz or 60 Hz (autosensing at power on)

Altitude: Maximum 2000 meters (6562 feet) above sea level Operating: 0 °C to 50 °C (32 °F to 122 °F), 70% relative humidity up to 35 °C

(95 °F); derate 3% relative humidity per °C, 35 °C to 50 °C (95 °F to 122 °F) Storage: −25 °C to 65 °C (−13 °F to 149 °F)

1-4 2450-901-01 Rev. D / May 2015

Using the event log .............................................................. 2-131

Section 2

General operation

In this section:

Power the instrument on or off ................................................. 2-2

Front-panel overview ................................................................ 2-3

Turn the Model 2450 output on or off ....................................... 2-6

Rear panel overview ................................................................ 2-7

Touchscreen display ................................................................ 2-8

Screen descriptions ................................................................ 2-12

Menu overview ....................................................................... 2-21

Display features ..................................................................... 2-44

Dimensions ............................................................................ 2-48

Handle and bumpers .............................................................. 2-52

Remote communications interfaces ....................................... 2-54

Determining the command set you will use ............................ 2-78

System information ................................................................ 2-79

Instrument sounds .................................................................. 2-80

Test connections .................................................................... 2-81

Source-measure overview...................................................... 2-96

Protection ............................................................................. 2-109

Ranges ................................................................................. 2-112

Automatic reference measurements .................................... 2-117

Source readback .................................................................. 2-118

Source delay ........................................................................ 2-119

Graphing .............................................................................. 2-120

Binning data with the Histogram ........................................... 2-124

Saving setups ....................................................................... 2-126

Resets .................................................................................. 2-130

Section

Reference Manual

2: General operation Model 2450 Interactive SourceMeter® Instrument

Power the instrument on or off

Follow the steps below to connect the Model 2450 to line power and turn on the instrument. The Model 2450 operates from a line voltage of 100 V to 240 V at a frequency of 50 Hz or 60 Hz. It automatically senses line voltage and frequency. Make sure the operating voltage in your area is compatible.

You must turn on the Model 2450 and allow it to warm up for at least one hour to achieve rated accuracies.

Operating the instrument on an incorrect line voltage may cause damage to the instrument, possibly voiding the warrant y.

The power cord supplied with the Model 2450 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 addition, a redundant protective earth connection is provided through a screw on the rear panel. This terminal should be connected to a known protective earth. 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.

To connect the power cord:

1. Make sure that the front-panel POWER switch is in the off (O) position.

2. Connect the female end of the supplied power cord to the AC receptacle on the rear panel.

3. Connect the other end of the power cord to a grounded AC outlet.

Figure 1: Model 2450 rear panel

2-2 2450-901-01 Rev. D / May 2015

Model 2450

General operation

press the power switch so that it is in the off position (O).

Returns the display to the Home screen.

Opens the main menu. Press the icons on the main menu to open

Opens a menu of preconfigured setups, including voltmeter, Opens help for the area or item that is selected on the display. If

overview information for the screen you are viewing.

Interactive SourceMeter® Instrument Reference Manual Section 2:

To turn a Model 2450 on or off:

1. Before turning the instrument on, disconnect any devices under test (DUTs) from the Model 2450.

2. To turn your instrument on, press the front-panel POWER switch to place it in the on (|) position. The instrument displays a status bar as it powers on. The Home screen is displayed when power on is complete.

3. To turn your instrument off, press the front-panel POWER switch to place it in the off (O) position.

Front-panel overview

The front panel of the Model 2450 is shown below. Descriptions of the controls on the front panel follow the figure.

Figure 2: Model 2450 front panel

POWER switch

Turns the instrument on or off. To turn the instru ment on, pre ss the power switch so that it is in the on position (|). To turn it off,

HOME key

MENU key

source, measure, view, trigger, script, and sy ste m scre ens . For details, refer to Menu overview (on page 2-21).

QUICKSET key

ammeter, ohmmeter, and power supply. Also allows you to choose source and measure functions and adjust performance for better resolution or speed. For details, see QuickSet menu (on page 2-

22).

HELP key

there is no selection when you press the HELP key, it displays

2450-901-01 Rev. D / May 2015 2-3

Section

Reference Manual

Saves reading buffer data and screen snapshots to a USB flash

The Model 2450 has a high-resolution, five-inch color touchscreen

Touchscreen display (on page 2-8) for details.

Moves the cursor and make screen selections.

Selects the highlighted choice

or allows you to edit the selected field.

Selects the highlighted choice or allows you to edit the selected field.

Returns to the previous screen or closes a dialog box. For

to the main menu screen.

Displays instrument functions. To select a function, touch the function name on the screen.

see Switching between measurement methods (on page 3-83).

Turns the output source on or off. The key illuminates when the

Illuminates when the instrument is controlled through a remote

2: General operation Model 2450 Interactive SourceMeter® Instrument

USB port

drive. Also stores and retrieves scripts to and from a USB flash drive. The flash drive must be formatted as a FAT drive.

Touchscreen

display. The touchscreen accesses swipe screens and menu options. You can access additional interactive screens by pressing the front-panel MENU, QUICKSET, and FUNCTION keys. Refer to

Navigation control

Turning the navigation control: Moves the cursor to highlight a

list value or menu item so that you can select it. Turning the control when the cursor is in a value entry field increases or decreases the value in the field.

Pressing the navigation control:

ENTER key

EXIT key

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

FUNCTION key

TRIGGER key

OUTPUT ON/OFF switch

REMOTE LED indicator

2-4 2450-901-01 Rev. D / May 2015

Accesses trigger-related settings and operations. The action of the TRIGGER key depends on the instrument state. For details,

source output is on.

interface.

+ 973 hidden pages

Tektronix 2450 Reference manual

Specifications and Main Features

Frequently Asked Questions

User Manual