Keithley 7001 User Manual

Model 7001 Switch System

Instruction Manual

A GREATER MEASURE OF CONFIDENCE

W ARRANTY

Keithley Instruments, Inc. warrants this product to be free from defects in material and workmanship for a period of 1 year from date of shipment.

Keithley Instruments, Inc. warrants the following items for 90 days from the date of shipment: probes, cables, rechargeable batteries, diskettes, and documentation.

During the warranty period, we will, at our option, either repair or replace any product that proves to be defective.

To exercise this warranty, write or call your local Keithley representative, or contact Keithley headquarters in Cle veland, Ohio. You will be given prompt assistance and return instructions. Send the product, transportation prepaid, to the indicated service facility . Repairs will be made and the product returned, transportation prepaid. Repaired or replaced products are warranted for the balance of the original warranty period, or at least 90 days.

LIMIT A TION OF W ARRANTY

This warranty does not apply to defects resulting from product modiﬁcation without Keithley’s express written consent, or misuse of any product or part. This warranty also does not apply to fuses, software, non-rechargeable batteries, damage from battery leakage, or problems arising from normal wear or failure to follow instructions.

THIS WARRANTY IS IN LIEU OF ALL OTHER WARRANTIES, EXPRESSED OR IMPLIED, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR USE. THE REMEDIES PROVIDED HEREIN ARE BUYER’S SOLE AND EXCLUSIVE REMEDIES.

NEITHER KEITHLEY INSTRUMENTS, INC. NOR ANY OF ITS EMPLOYEES SHALL BE LIABLE FOR ANY DIRECT, INDIRECT, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE OF ITS INSTRUMENTS AND SOFTWARE EVEN IF KEITHLEY INSTRUMENTS, INC., HAS BEEN ADVISED IN ADVANCE OF THE POSSIBILITY OF SUCH DAMAGES. SUCH EXCLUDED DAMAGES SHALL INCLUDE, BUT ARE NOT LIMITED TO: COSTS OF REMOVAL AND INSTALLATION, LOSSES SUSTAINED AS THE RESULT OF INJURY TO ANY PERSON, OR DAMAGE TO PROPERTY.

Keithley Instruments, Inc.

Sales Ofﬁces: BELGIUM: Bergensesteenweg 709 • B-1600 Sint-Pieters-Leeuw • 02-363 00 40 • Fax: 02/363 00 64

CHINA: Yuan Chen Xin Building, Room 705 • 12 Yumin Road, Dewai, Madian • Beijing 100029 • 8610-6202-2886 • Fax: 8610-6202-2892 FINLAND: Tietäjäntie 2 • 02130 Espoo • Phone: 09-54 75 08 10 • Fax: 09-25 10 51 00 FRANCE: 3, allée des Garays • 91127 Palaiseau Cédex • 01-64 53 20 20 • Fax: 01-60 11 77 26 GERMANY: Landsberger Strasse 65 • 82110 Germering • 089/84 93 07-40 • Fax: 089/84 93 07-34 GREAT BRITAIN: Unit 2 Commerce Park, Brunel Road • Theale • Berkshire RG7 4AB • 0118 929 7500 • Fax: 0118 929 7519 INDIA: Flat 2B, Willocrissa • 14, Rest House Crescent • Bangalore 560 001 • 91-80-509-1320/21 • Fax: 91-80-509-1322 ITALY: Viale San Gimignano, 38 • 20146 Milano • 02-48 39 16 01 • Fax: 02-48 30 22 74 KOREA: FL., URI Building • 2-14 Yangjae-Dong • Seocho-Gu, Seoul 137-130 • 82-2-574-7778 • Fax: 82-2-574-7838 NETHERLANDS: Postbus 559 • 4200 AN Gorinchem • 0183-635333 • Fax: 0183-630821 SWEDEN: c/o Regus Business Centre • Frosundaviks Allé 15, 4tr • 169 70 Solna • 08-509 04 679 • Fax: 08-655 26 10 SWITZERLAND: Kriesbachstrasse 4 • 8600 Dübendorf • 01-821 94 44 • Fax: 01-820 30 81 TAIWAN: 1FL., 85 Po Ai Street • Hsinchu, Taiwan, R.O.C. • 886-3-572-9077• Fax: 886-3-572-9031

28775 Aurora Road • Cleveland, Ohio 44139 • 440-248-0400 • Fax: 440-248-6168

1-888-KEITHLEY (534-8453) • www.keithley.com

Printed in the U.S.A.

11/01

Model 7001 Switch System Instruction Manual

Cleveland, Ohio, U.S.A.

Document Number 7001-901-01 Rev. H

Manual Print History

The print history shown below lists the printing dates of all Revisions and Addenda created for this manual. The Revision Level letter increases alphabetically as the manual undergoes subsequent updates. Addenda, which are released between Revisions, contain important change information that the user should incorporate immediately into the manual. Addenda are numbered sequentially. When a new Revision is created, all Addenda associated with the previous Revision of the manual are incorporated into the new Revision of the manual. Each new Revision includes a revised copy of this print history page.

Revision A (Document Number 7001-901-01).........................................................................November 1991

Addendum A (Document Number 7001-901-02) ...................................................................November 1991

Addendum A (Document Number 7001-901-03) ...................................................................November 1991

Revision B (Document Number 7001-901-01)..............................................................................January 1992

Revision C (Document Number 7001-901-01) .................................................................................April 1992

Addendum C (Document Number 7001-901-02) ............................................................................. May 1992

Revision D (Document Number 7001-901-01) ................................................................................... July 1992

Addendum D (Document Number 7001-901-02)....................................................................... October 1992

Revision E (Document Number 7001-901-01)........................................................................... February 1993

Revision F (Document Number 7001-901-01) .............................................................................. August 1993

Addendum F (Document Number 7001-901-02)............................................................................. April 1995

Addendum F (Document Number 7001-901-03)........................................................................... March 1996

Addendum F (Document Number 7001-901-04)....................................................................September 1996

Revision G (Document Number 7001-901-01) ............................................................................. August 1997

Revision H (Document Number 7001-901-01).........................................................................December 2001

All Keithley product names are trademarks or registered trademarks of Keithley Instruments, Inc. Other brand and product names are trademarks or registered trademarks of their respective holders.

Safety Precautions

The following safety precautions should be observed before using this product and any associated instrumentation. Although some instruments and accessories would normally be used with non-hazardous 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 manual for complete product speciﬁcations.

If the product is used in a manner not speciﬁed, the protection provided by the product 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 manual. 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, and perform

safe installations and repairs of products. Only properly trained service personnel may perform installation and service procedures.

Keithley products are designed for use with electrical signals that are rated Installation Category I and Installation Category II, as described in the International Electrotechnical Commission (IEC) Standard IEC 60664. Most measurement, control, and data I/O signals are Installation Category I and must not be directly connected to mains voltage or to voltage sources with high transient over -voltages. Installation Category II connections require protection for high transient over-voltages often associated with local AC mains connections. Assume all measurement, control, and data I/O connections are for connection to Category I sources unless otherwise marked or described in the Manual.

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 30V RMS, 42.4V peak, or 60VDC are present.

that hazardous voltage is present in any unknown circuit before measuring.

A good safety practice is to expect

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 volts,

the circuit may be exposed.

For rack mount equipment in which the power cord is not accessible, in the event of ﬁre or other catastrophic failure, the user must provide a separate power disconnect switch.

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, make sure the line cord is connected to a properly grounded power receptacle. Inspect the connecting cables, test leads, and jumpers for possible wear, cracks, or breaks before each use.

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

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

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

The instrument and accessories must be used in accordance with its speciﬁcations and operating instructions or the safety of the equipment may 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 same type and rating for continued protection against ﬁre hazard.

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

no conductive part of

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

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

The symbol on an instrument indicates that the user should refer to the operating instructions located in the manual.

The symbol on an instrument shows that it can source or measure 1000 volts or more, including the combined effect of normal and common mode voltages. Use standard safety precautions to avoid personal contact with these voltages.

The

WARNING heading in a manual explains dangers that might

result in personal injury or death. Alw ays read the associated infor mation very carefully before performing the indicated procedure.

The

CAUTION heading in a manual explains hazards that could

damage 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, including 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., 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.

11/01

HW 9/6/01

Rev. C

ANALOG BACKPLANE

SIGNALS: Four 3-pole rows (Hi, Lo, Guard). These signals provide matrix

and multiplexer expansion between cards within one mainframe.

MAXIMUM VOLTAGE: 250V DC, 250V RMS, 350V AC peak, signal path to

signal path or signal path to chassis.

MAXIMUM CURRENT: 1A peak. PATH ISOLATION:

>10

Ω, <50pF path to path (any Hi, Lo, Guard to another Hi, Lo,

Guard).

>10

Ω, <50pF differential (Hi to Lo or Hi, Lo to Guard).

>10

Ω, <75pF path to chassis.

CHANNEL CROSSTALK: <–65dB @ 1MHz (50Ωload). BANDWIDTH: <3dB loss at 100MHz (50Ω load).

SYSTEM

CAPACITY: 2 plug-in cards per mainframe. MEMORY: Battery backed-up storage for 100 switch patterns. SWITCH SETTLING TIME: Automatically selected by the mainframe for

each card. Additional time from 0 to 99999.999 seconds can be added in 1ms increments.

TRIGGER SOURCES:

External Trigger (TTL-compatible, programmable edge, 600ns mini-

mum pulse, rear panel BNC). IEEE-488 bus (GET, *TRG) Trigger Link Manual (front panel) Internal Timer, programmable from 1ms to 99999.999 seconds in 1ms

increments.

STATUS OUTPUT: Channel Ready (TTL-compatible signal, rear panel

BNC). Low going pulse (10µs typical) issued after relay settling time. For two different switch cards, 7001 will be set to the slowest relay settling time.

SWITCHING SEQUENCE: Automatic break-before-make. MAINFRAME DIGITAL I/O: 4 open-collector outputs (30V maximum

pull up voltage, 100mA maximum sink current, 10Ω output impedance), 1 TTL compatible input, 1 common.

RELAY DRIVE: 700mA maximum for both card slots. CARD SIZE: 32mm high × 114mm wide × 272mm long (1¼ in × 4½ in

× 10¾ in).

CARD COMPATIBILITY: Fully compatible with all 7XXX cards.

THROUGHPUT

EXECUTION SPEED OF SCAN LIST

7011 Car

d 7015 Car

Individual channels:

130/second 500/second

Memory setups: 125/second 450/second

TRIGGER EXECUTION TIME (maximum time from activation of

Trigger Source to start of switch open or close

SOURCE LATENCY JITTER

GET

200 µs <50 µs

*TRG

5.0 ms Trigger Link 200 µs <13 µs External 200 µs <13 µs

Rates include switch settling time of cards: 3ms for 7011 and 500µs for 7015 cards.

Excluding switch settling time.

Assuming no IEEE-488 commands are pending execution.

IEEE-488 COMMAND EXECUTION TIME

EXECUTION TIME

COMMAND DISPLAY OFF DISPLAY ON

OPEN (@1!1) 7.5 ms 8.5 ms CLOS (@1!1) 7.5 ms 8.5 ms MEM:REC M1 5.0 ms 6.0 ms

Measured from the time at which the command terminator is taken from the

bus to the time at which the relay begins to open or close.

IEEE-488 BUS IMPLEMENTATION

STANDARDS CONFORMANCE: Conforms to SCPI-1990, IEEE-488.2

and IEEE-488.1.

MULTILINE COMMANDS: DCL, LLO, SDC, GET, GTL, UNT, UNL,

SPE, SPD.

UNILINE COMMANDS: IFC, REN, EOI, SRQ, ATN. INTERFACE FUNCTIONS: SH1, AH1,T5, TE0, L4, LE0, SR1, RL1, PP0,

DC1, DT1, C0, E1.

GENERAL

DISPLAY: Dual-line vacuum fluorescent.

1st line: 20-character alphanumeric. 2nd line: 32-character alphanumeric.

REAR PANEL CONNECTORS:

IEEE-488 8-pin micro DIN connector for digital I/O 8-pin micro DIN for Trigger Link 8-pin micro DIN for Trigger Link expansion BNC for External Trigger BNC for Channel Ready

POWER: 100V to 240V RMS , 50/60 Hz, 50VA maximum. EMC: Complies with

to European Union Directive 89/336/EEC,

EN61326-1.

SAFETY: Conforms to European Union Directive 73/23/EEC,

EN61010-1.

EMI/RFI: Meets VDE 0871B and FCC Class B. ENVIRONMENT:

Operating: 0°–50°C, <80% relative humidity (0°–35°C). Storage: –25° to +65°C.

DIMENSIONS, WEIGHT: 89mm high × 216mm wide × 375mm deep

(3½ in × 8½ in × 14¾ in). Net weight 3.4kg (7½ lbs).

Specifications subject to change without notice.

7001 High Density Switch System Specifications

1 General Information

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

1.2 Features.............................................................................................................................................................. 1-1

1.3 Warranty information...................................................................................................................................... 1-1

1.4 Manual addenda .............................................................................................................................................. 1-2

1.5 Safety symbols and terms ............................................................................................................................... 1-2

1.6 Specifications .................................................................................................................................................... 1-2

1.7 Inspection .......................................................................................................................................................... 1-2

1.8 Optional accessories......................................................................................................................................... 1-2

2 Card Installation

2.1 Introduction ...................................................................................................................................................... 2-1

2.2 Model 701X series card installation ............................................................................................................... 2-1

2.3 Non-701X series cards ..................................................................................................................................... 2-2

3 Getting Started

3.1 Introduction ...................................................................................................................................................... 3-1

3.2 Front and rear panel configurations.............................................................................................................. 3-1

3.2.1 Front panel controls ................................................................................................................................. 3-1

3.2.2 Rear panel.................................................................................................................................................. 3-1

3.2.3 Channel status display ............................................................................................................................ 3-4

3.3 Operation demo................................................................................................................................................ 3-7

3.3.1 Initial configuration ................................................................................................................................. 3-7

3.3.2 Close and open channels......................................................................................................................... 3-7

3.3.3 Scan channels............................................................................................................................................ 3-8

3.4 Overview of scan process.............................................................................................................................. 3-10

3.5 Initial configuration ....................................................................................................................................... 3-11

3.5.1 Switching card simulators .................................................................................................................... 3-11

3.5.2 Installing switching cards ..................................................................................................................... 3-12

3.5.3 Card type................................................................................................................................................. 3-12

3.6 Front panel operation .................................................................................................................................... 3-13

3.6.1 Close/open operation example............................................................................................................ 3-13

3.6.2 Scan operation example ........................................................................................................................ 3-15

3.7 IEEE-488.2 and SCPI basics........................................................................................................................... 3-18

3.7.1 Bus connections ...................................................................................................................................... 3-19

3.7.2 Primary address ..................................................................................................................................... 3-19

3.7.3 Abbreviated common command summary ....................................................................................... 3-19

3.7.4 Abbreviated SCPI command summary .............................................................................................. 3-19

3.7.5 Syntax rules............................................................................................................................................. 3-20

3.7.6 Programming examples ........................................................................................................................ 3-22

4 Front Panel Operation

4.1 Introduction....................................................................................................................................................... 4-1

4.2 Power-up procedure ........................................................................................................................................ 4-1

4.2.1 Line power connections........................................................................................................................... 4-1

4.2.2 Power switch ............................................................................................................................................. 4-2

4.2.3 Power-up sequence .................................................................................................................................. 4-2

4.3 Display ............................................................................................................................................................... 4-3

4.3.1 Channel status display............................................................................................................................. 4-4

4.3.2 Information and error messages............................................................................................................. 4-5

4.3.3 Annunciators............................................................................................................................................. 4-5

4.4 Analog backplane ............................................................................................................................................. 4-6

4.5 Mainframe programming................................................................................................................................ 4-8

4.5.1 Channel assignments ............................................................................................................................... 4-8

4.5.2 Channel list and scan list....................................................................................................................... 4-10

4.5.3 Closing and opening channels.............................................................................................................. 4-12

4.5.4 Scanning channels .................................................................................................................................. 4-13

4.5.5 Storing channel patterns (STORE and RECALL)............................................................................... 4-20

4.6 MENU .............................................................................................................................................................. 4-22

4.6.1 SAVESETUP ............................................................................................................................................ 4-24

4.6.2 GPIB.......................................................................................................................................................... 4-25

4.6.3 DIGITAL-I/O.......................................................................................................................................... 4-26

4.6.4 TEST.......................................................................................................................................................... 4-27

4.6.5 LANGUAGE ........................................................................................................................................... 4-27

4.6.6 GENERAL................................................................................................................................................ 4-27

4.7 CARD CONFIG .............................................................................................................................................. 4-28

4.7.1 TYPE ......................................................................................................................................................... 4-29

4.7.2 #-OF-POLES ............................................................................................................................................ 4-31

4.7.3 CARD-PAIR............................................................................................................................................. 4-32

4.7.4 DELAY ..................................................................................................................................................... 4-32

4.7.5 READ-I/O-CARD .................................................................................................................................. 4-33

4.8 SCAN CONFIG............................................................................................................................................... 4-33

4.8.1 CHAN-CONTROL ................................................................................................................................. 4-35

4.8.2 SCAN CONTROL................................................................................................................................... 4-38

4.8.3 ARM CONTROL..................................................................................................................................... 4-40

4.8.4 Channel restrictions................................................................................................................................ 4-42

4.9 Digital I/O port............................................................................................................................................... 4-43

4.9.1 Controlling digital circuitry .................................................................................................................. 4-44

4.9.2 Digital input channel.............................................................................................................................. 4-46

4.9.3 I/O port connections.............................................................................................................................. 4-46

4.10 External triggering.......................................................................................................................................... 4-48

4.10.1 External trigger ....................................................................................................................................... 4-48

4.10.2 Channel ready ......................................................................................................................................... 4-49

4.10.3 External triggering example.................................................................................................................. 4-49

4.11 Trigger Link..................................................................................................................................................... 4-51

4.11.1 Asynchronous operation ....................................................................................................................... 4-51

4.11.2 Semi-synchronous operation ................................................................................................................ 4-59

4.12 DUT test system using two switching mainframes ....................................................................................4-63

4.12.1 DMM settings...........................................................................................................................................4-64

4.12.2 Switching mainframe A settings (7001)................................................................................................4-65

4.12.3 Switching mainframe B settings (7001) ................................................................................................4-66

4.12.4 Run DUT test SYSTem ............................................................................................................................4-66

4.12.5 Operation details .....................................................................................................................................4-67

5 IEEE-488 Reference

5.1 Introduction ...................................................................................................................................................... 5-1

5.2 IEEE-488 bus connections ............................................................................................................................... 5-2

5.3 Primary address selection ............................................................................................................................... 5-4

5.4 Controller programming................................................................................................................................. 5-4

5.5 Front panel aspects of IEEE-488 operation ................................................................................................... 5-5

5.5.1 Error and status messages ...................................................................................................................... 5-5

5.5.2 IEEE-488 status indicators....................................................................................................................... 5-5

5.5.3 LOCAL key ............................................................................................................................................... 5-5

5.6 Status structure ................................................................................................................................................. 5-5

5.6.1 Standard event status .............................................................................................................................. 5-7

5.6.2 Operation event status............................................................................................................................. 5-8

5.6.3 Arm event status .................................................................................................................................... 5-11

5.6.4 Sequence event status............................................................................................................................ 5-13

5.6.5 Trigger event status ............................................................................................................................... 5-15

5.6.6 Questionable event status ..................................................................................................................... 5-18

5.6.7 Queues ..................................................................................................................................................... 5-18

5.6.8 Status byte and service request (SRQ)................................................................................................. 5-18

5.7 Trigger model (IEEE-488 operation).............................................................................................................5-21

5.8 General bus commands ................................................................................................................................. 5-26

5.8.1 REN (remote enable).............................................................................................................................. 5-26

5.8.2 IFC (interface clear)................................................................................................................................ 5-27

5.8.3 LLO (local lockout) ................................................................................................................................ 5-27

5.8.4 GTL (go to local) and local.................................................................................................................... 5-27

5.8.5 DCL (device clear).................................................................................................................................. 5-27

5.8.6 SDC (selective device clear).................................................................................................................. 5-28

5.8.7 GET (group execute trigger)................................................................................................................. 5-28

5.8.8 SPE, SPD (serial polling) ....................................................................................................................... 5-28

5.9 Programming syntax ......................................................................................................................................5-29

5.10 Common commands...................................................................................................................................... 5-37

5.10.1 *CLS

5.10.2 *ESE

5.10.3 *ESE?

5.10.4 *ESR?

5.10.5 *IDN?

5.10.6 *OPC

5.10.7 *OPC?

5.10.8 *OPT?

5.10.9 *RCL

5.10.10 *RST

5.10.11 *SAV

5.10.12 *SRE

5.10.13 *SRE?

5.10.14 *STB?

5.10.15 *TRG

5.10.16 *TST?

5.10.17 *WAI

5.11 :DISPlay subsystem........................................................................................................................................ 5-67

5.12 :OUTPut subsystem ....................................................................................................................................... 5-73

5.13 [:ROUTe] subsystem ...................................................................................................................................... 5-75

5.13.1 :CLOSe <list> ........................................................................................................................................... 5-76

5.13.2 :OPEN <list>|ALL..................................................................................................................................5-78

5.13.3 :SCAN <list> ............................................................................................................................................5-79



clear status................................................................................................................................ 5-39



event status enable .................................................................................................................. 5-40



event status enable query ..................................................................................................... 5-42



event status register query ................................................................................................... 5-43



identification query............................................................................................................... 5-45



operation complete................................................................................................................. 5-46



operation complete query ................................................................................................... 5-48



option identification query.................................................................................................. 5-50



recall.......................................................................................................................................... 5-51



reset............................................................................................................................................ 5-52



save ........................................................................................................................................... 5-54



service request enable ............................................................................................................. 5-55



service request enable query................................................................................................ 5-57



status byte query.................................................................................................................... 5-58



trigger....................................................................................................................................... 5-60



self-test query ......................................................................................................................... 5-61



wait-to-continue ..................................................................................................................... 5-62

iii

5.13.4 :FCHannels <lsit> ....................................................................................................................................5-81

5.13.5 :BBMake <b> ............................................................................................................................................5-82

5.13.6 :SCHannel <b> .........................................................................................................................................5-82

5.13.7 :CPAir <b>................................................................................................................................................5-83

5.13.8 <CTYPe <name>......................................................................................................................................5-84

5.13.9 :POLE <NRf> ...........................................................................................................................................5-85

5.13.10 :STIMe <n> ...............................................................................................................................................5-87

5.13.11 :SAVE M<num>.......................................................................................................................................5-88

5.13.12 :RECall M<num>.....................................................................................................................................5-88

5.14 Sense Subsystems ........................................................................................................................................... 5-91

5.15 :SOURce subsystem........................................................................................................................................ 5-93

5.16 :STATus subsystem ........................................................................................................................................ 5-95

5.16.1 [:EVENt]? ..................................................................................................................................................5-96

5.16.2 :ENABle <NRf>......................................................................................................................................5-100

5.16.3 :PTRansition <NRf> ..............................................................................................................................5-104

5.16.4 :NTRansition <NRf> .............................................................................................................................5-109

5.16.5 :CONDition?...........................................................................................................................................5-111

5.16.6 :PREset.....................................................................................................................................................5-112

5.16.7 :QUEue commands................................................................................................................................5-113

5.17 :SYSTem Subsystem ......................................................................................................................................5-117

5.17.1 :PRESet ....................................................................................................................................................5-117

5.17.2 :POSetup <name>..................................................................................................................................5-117

5.17.3 :VERSion?................................................................................................................................................5-118

5.17.4 :ERRor?....................................................................................................................................................5-119

5.18 Trigger subsystem ........................................................................................................................................ 5-121

5.18.1 :INITiate commands..............................................................................................................................5-123

5.18.2 :ABORt ....................................................................................................................................................5-124

5.18.3 :IMMediate .............................................................................................................................................5-124

5.18.4 :COUNt <n> ...........................................................................................................................................5-125

5.18.5 :DELay <n>.............................................................................................................................................5-127

5.18.6 :SOURce <name>...................................................................................................................................5-128

5.18.7 :TIMer <n>..............................................................................................................................................5-130

5.18.8 :SIGNal ....................................................................................................................................................5-131

5.18.9 TCONfigure commands .......................................................................................................................5-131

6 Theory of Operation

6.1 Introduction....................................................................................................................................................... 6-1

6.2 Overall functional description .........................................................................................................................6-1

6.3 Control function.................................................................................................................................................6-3

6.3.1 Reset circuitry............................................................................................................................................ 6-3

6.3.2 Address decoding..................................................................................................................................... 6-3

6.3.3 Memory...................................................................................................................................................... 6-3

6.4 Relay control circuitry.......................................................................................................................................6-5

6.4.1 Backplane interface................................................................................................................................... 6-5

6.4.2 Switch card interface................................................................................................................................ 6-7

6.4.3 ID data circuits .......................................................................................................................................... 6-7

6.4.4 Relay control.............................................................................................................................................. 6-9

6.4.5 Power-on safeguard ................................................................................................................................. 6-9

6.4.6 Display board circuitry............................................................................................................................ 6-9

6.4.7 External control signals.......................................................................................................................... 6-11

6.4.8 IEEE-488 interface................................................................................................................................... 6-11

6.4.9 Power supplies........................................................................................................................................ 6-11

7 Maintenance

7.1 Introduction ...................................................................................................................................................... 7-1

7.2 Service options................................................................................................................................................... 7-1

7.3 Handling and cleaning .....................................................................................................................................7-2

7.3.1 Backplane board ........................................................................................................................................ 7-2

7.3.2 Static-sensitive devices ............................................................................................................................. 7-2

7.4 Routine maintenance ........................................................................................................................................7-3

7.4.1 Line voltage selection .............................................................................................................................. 7-3

7.4.2 Changing the fuse .................................................................................................................................... 7-3

7.4.3 Changing the battery ................................................................................................................................7-3

7.4.4 Changing firmware.................................................................................................................................. 7-4

7.5 Disassembly of the instrument........................................................................................................................7-4

7.5.1 Removal of the case.................................................................................................................................. 7-4

7.5.2 Removal of individual boards................................................................................................................ 7-5

7.5.3 Replacement of the case ...........................................................................................................................7-7

7.6 Diagnostics .........................................................................................................................................................7-8

7.6.1 Preparations for running the diagnostics ............................................................................................. 7-8

7.6.2 Initial power-up test ................................................................................................................................ 7-8

7.6.3 Non-volatile memory test ........................................................................................................................7-8

7.6.4 Built-in-tests .............................................................................................................................................. 7-9

7.6.5 Display test

7.6.6 Display test

7.6.7 Display test Ñ char set ...........................................................................................................................7-11

7.7 Test description and notes .............................................................................................................................7-11

7.7.1 Initial power-up test .............................................................................................................................. 7-11

7.7.2 Non-volatile memory tests.................................................................................................................... 7-12

7.7.3 Built-in-tests .............................................................................................................................................7-12

7.8 Troubleshooting .............................................................................................................................................. 7-14

7.8.1 Digital board ........................................................................................................................................... 7-14

7.8.2 Display board.......................................................................................................................................... 7-15

7.8.3 Power supply........................................................................................................................................... 7-15

7.8.4 Micro DIN board .................................................................................................................................... 7-16

7.8.5 Backplane board ..................................................................................................................................... 7-16

7.8.6 BNC board................................................................................................................................................ 7-16



keys................................................................................................................................ 7-10



patterns ......................................................................................................................... 7-10

8 Replaceable Parts

8.1 Introduction ...................................................................................................................................................... 8-1

8.2 Electrical components list ................................................................................................................................ 8-1

8.3 Mechanical parts ............................................................................................................................................... 8-1

8.4 Ordering information .......................................................................................................................................8-1

8.5 How to obtain factory service ......................................................................................................................... 8-1

8.6 Document list ..................................................................................................................................................... 8-2

Appendices

A Interface Function Codes ............................................................................................................................... A-1

B ASCII Character Codes and IEEE-488 Multiline Interface Command Messages ................................... B-1

C Controller Programs ....................................................................................................................................... C-1

D IEEE-488 Bus Overview.................................................................................................................................. D-1

E IEEE-488 Conformance Information ............................................................................................................. E-1

F SCPI Conformance Information..................................................................................................................... F-1

List of Illustrations

2 Card Installation

Figure 2-1 Multi-pin card installation...................................................................................................................... 2-3

Figure 2-2 Screw terminal card installation ............................................................................................................ 2-4

3 Getting Started

Figure 3-1 Model 7001 front panel............................................................................................................................ 3-2

Figure 3-2 Model 7001 rear panel ............................................................................................................................. 3-3

Figure 3-3 Channel status display ............................................................................................................................ 3-5

Figure 3-4 Channel assignments (matrix cards)..................................................................................................... 3-5

Figure 3-5 Channel assignments (non-matrix type cards).................................................................................... 3-6

Figure 3-6 Simplified model of scan operation..................................................................................................... 3-10

4 Front Panel Operation

Figure 4-1 Display format.......................................................................................................................................... 4-3

Figure 4-2 Channel status display ............................................................................................................................ 4-4

Figure 4-3 Interpreting channel status display....................................................................................................... 4-4

Figure 4-4 Model 7001 analog backplane ................................................................................................................ 4-7

Figure 4-5 Matrix row connections to backplane ................................................................................................... 4-7

Figure 4-6 Channel assignments (non-matrix type cards).................................................................................... 4-8

Figure 4-7 Channel assignments (matrix cards)..................................................................................................... 4-9

Figure 4-8 Trigger Model (Front panel scan operation)...................................................................................... 4-14

Figure 4-9 Digital I/O port simplified schematic.................................................................................................. 4-43

Figure 4-10 Sample externally powered relay ........................................................................................................ 4-46

Figure 4-11 Digital I/O port .......................................................................................................................................4-47

Figure 4-12 Digital I/O connections using trigger link cable............................................................................... 4-48

Figure 4-13 External triggering connectors (BNC)................................................................................................. 4-48

Figure 4-14 External trigger and asynchronous Trigger Link Input pulse specifications................................ 4-48

Figure 4-15 Channel ready and asynchronous Trigger Link Output pulse specifications .............................. 4-49

Figure 4-16 DUT test system ..................................................................................................................................... 4-50

Figure 4-17 External trigger connectors................................................................................................................... 4-50

Figure 4-18 Trigger link connectors.......................................................................................................................... 4-51

Figure 4-19 DUT test system ..................................................................................................................................... 4-52

Figure 4-20 Trigger Link connections (asynchronous example #1)..................................................................... 4-52

vii

Figure 4-21 Operation model for asynchronous Trigger Link example #1 ........................................................ 4-54

Figure 4-22 Connections using Trigger Link adapter ............................................................................................ 4-55

Figure 4-23 DUT test system (asynchronous example #2) .................................................................................... 4-56

Figure 4-24 Trigger Link connections (asynchronous example #2) ..................................................................... 4-56

Figure 4-25 Operation model for asynchronous Trigger Link example #2 ........................................................ 4-58

Figure 4-26 Semi-synchronous trigger link pulse specifications .......................................................................... 4-59

Figure 4-27 Typical semi-synchronous mode connections.................................................................................... 4-59

Figure 4-28 Trigger Link connections (semi-synchronous example)................................................................... 4-60

Figure 4-29 Operation model for semi-synchronous Trigger Link example ...................................................... 4-62

Figure 4-30 DUT test system.......................................................................................................................................4-63

Figure 4-31 Trigger link connections .........................................................................................................................4-64

Figure 4-32 Digital multimeter flowchart .................................................................................................................4-68

Figure 4-33 Digital multimeter block diagram.........................................................................................................4-69

5 IEEE-488 Reference

Figure 5-1 IEEE-488 connector................................................................................................................................... 5-2

Figure 5-2 IEEE-488 connections............................................................................................................................... 5-2

Figure 5-3 IEEE-488 connector location.................................................................................................................... 5-3

Figure 5-4 Contact assignments ................................................................................................................................ 5-3

Figure 5-5 Model 7001 status register structure...................................................................................................... 5-6

Figure 5-6 Standard event status............................................................................................................................... 5-7

Figure 5-7 Operation event status............................................................................................................................. 5-9

Figure 5-8 Arm event status..................................................................................................................................... 5-11

Figure 5-9 Sequence event status ............................................................................................................................ 5-14

Figure 5-10 Trigger event status................................................................................................................................ 5-16

Figure 5-11 Status byte and service request (SRQ)................................................................................................. 5-19

Figure 5-12 Trigger model (IEEE-488 bus operation)..............................................................................................5-22

Figure 5-13 Standard Event Status Enable Register ............................................................................................... 5-41

Figure 5-14 Standard Event Status Register ............................................................................................................ 5-44

Figure 5-15 Service Request Enable Register........................................................................................................... 5-56

Figure 5-16 Status Byte Register................................................................................................................................ 5-59

Figure 5-17 Operation Event Register ...................................................................................................................... 5-98

Figure 5-18 Trigger Event Register ........................................................................................................................... 5-98

Figure 5-19 Arm Event Register ................................................................................................................................ 5-99

Figure 5-20 Sequence Event Register...................................................................................................................... 5-100

Figure 5-21 Operation Event Enable Register ....................................................................................................... 5-102

Figure 5-22 Trigger Event Enable Register ............................................................................................................ 5-102

Figure 5-23 Arm Event Enable Register ..................................................................................................................5-103

Figure 5-24 Sequence Event Enable Register..........................................................................................................5-103

Figure 5-25 Operation Transition Filter...................................................................................................................5-105

Figure 5-26 Trigger Transition Filter .......................................................................................................................5-106

Figure 5-27 Arm Transition Filter ............................................................................................................................5-107

Figure 5-28 Sequence Transition Filter................................................................................................................... 5-108

viii

6 Theory of Operation

Figure 6-1 Model 7001 system block diagram....................................................................................................... 6-2

Figure 6-2 Block diagram

Figure 6-3 Backplane interface simplified schematic........................................................................................... 6-6

Figure 6-4 Timing diagram Figure 6-5 Block diagram

Figure 6-6 Timing diagram, IDCLK and IDDATA .............................................................................................. 6-8

Figure 6-7 Start and stop sequences ....................................................................................................................... 6-9

Figure 6-8 Display board block diagram ............................................................................................................. 6-10

Figure 6-9 BNC board block diagram .................................................................................................................. 6-11

Figure 6-10 Micro DIN board block diagram........................................................................................................ 6-12



digital circuitry and memory................................................................................ 6-4



backplane interface WRITE................................................................................ 6-7



backplane interface (one slot) ............................................................................... 6-8

7 Maintenance

Figure 7-1 First pattern for display test................................................................................................................ 7-11

Appendices

Figure D-1 IEEE-488 bus configuration ................................................................................................................... D-2

Figure D-2 IEEE-488 handshake sequence ............................................................................................................... D-3

Figure D-3 Command codes...................................................................................................................................... D-7

List of Tables

3 Getting Started

Table 3-1 Abbreviated common command summary ....................................................................................... 3-19

Table 3-2 Abbreviated SCPI command summary .............................................................................................. 3-20

4 Front Panel Operation

Table 4-1 Error and status messages ...................................................................................................................... 4-5

Table 4-2 MENU structure ..................................................................................................................................... 4-23

Table 4-3 Default conditions .................................................................................................................................. 4-25

Table 4-4 CARD CONFIG MENU structure ....................................................................................................... 4-29

Table 4-5 TYPE assignments .................................................................................................................................. 4-30

Table 4-6 CONFIGURE SCAN menu structure .................................................................................................. 4-33

5 IEEE-488 Reference

Table 5-1 IEEE contact designations ....................................................................................................................... 5-3

Table 5-2 HP BASIC 4.0 IEEE-488 statements ....................................................................................................... 5-5

Table 5-3 General bus commands and associated BASIC statements ............................................................. 5-26

Table 5-4 IEEE-488.2 common commands and queries ..................................................................................... 5-38

Table 5-5 Default conditions .................................................................................................................................. 5-53

Table 5-6 DISPlay command summary................................................................................................................ 5-67

Table 5-7 OUTPut command summary ............................................................................................................... 5-73

Table 5-8 ROUTe command summary................................................................................................................. 5-75

Table 5-9 SENSe command summary .................................................................................................................. 5-91

Table 5-10 SOURce command summary ............................................................................................................... 5-93

Table 5-11 STATus command summary................................................................................................................ 5-95

Table 5-12 SYSTem command summary ............................................................................................................. 5-117

Table 5-13 Trigger command summary............................................................................................................... 5-121

7 Maintenance

Table 7-1 Power supply checks ............................................................................................................................. 7-16

8 Replaceable Partsd

Table 8-1 Digital board, parts list .............................................................................................................................8-3

Table 8-2 Digital board, parts list .............................................................................................................................8-5

Table 8-3 Micro DIN board, parts list ......................................................................................................................8-7

Table 8-4 Backplane board, parts list .......................................................................................................................8-9

Table 8-5 BNC board, parts list .................................................................................................................................8-1

Appendices

Table A-1 Model 7001 interface function codes ................................................................................................... A-2

Table C-1 BASIC statements necessary to send bus commands ........................................................................ C-3

Table D-1 IEEE-488 bus command summary ....................................................................................................... D-5

Table D-2 Hexadecimal and decimal command codes ....................................................................................... D-8

Table D-3 Typical addressed command sequence ............................................................................................... D-8

Table D-4 Typical common command sequence ................................................................................................. D-9

Table D-5 IEEE command groups .......................................................................................................................... D-9

Table E-1 IEEE-488 documentation requirements................................................................................................ E-1

Table F-1 Syntax of SCPI confirmed commands implemented by Model 7001............................................... F-1

Table F-2 Syntax of non-SCPI commands implemented by Model 7001.......................................................... F-5

xii

General Information

1.1 Introduction

This section contains general information about the Model 7001 Switch System.

1.2 Features

1.3 Warranty Information

1.4 Manual Addenda

1.5 Safety Symbols and Terms

1.6 SpeciÞcations

1.7 Inspection

1.8 Optional Accessories

1.2 Features

Some important Model 7001 features include:

¥ Analog Backplane

connect the rows or banks of a Model 701X series card installed in one slot to the rows or banks of a second Model 701X series card installed in the other slot.

¥ Close/Open or Scan

close and/or open one or more channels, or scan through a speciÞed list of channels.

¥ Channel Status Display

play monitors the state (closed or open) of all available channels.

¥ Memory

open and closed channels) and 10 customized instrument setups can be saved in memory for later recall.

¥ IEEE-488 Bus

IEEE-488.2 and SCPI standards.

¥ Trigger Link

more versatile and precise external triggering. This is in addition to the standard in/out BNC external triggering technique.



Up to 100 channel patterns (pattern of



Can be used to internally



The Model 7001 can simply



The real-time status dis-



Bus operation conforms to the



New trigger concept to provide

¥ High Density Switching

mainframe using two switching cards.

¥ Switching Cards

cards designed speciÞcally for the Model 7001 (i.e. Models 7011, 7012 and 7013), you can use the switching cards that were originally designed for the Keithley Models 705 and 706 scanners.



Up to 80 channels per

In addition to the switching

1.3 Warranty information

Warranty information is located on the inside front cover of this instruction manual. Should your Model 7001 require warranty service, contact the Keithley representative or authorized repair facility in your area for further information. When returning the instrument for repair, be sure to Þll out and include the service

1-1

General Information

form at the back of this manual in order to provide the repair facility with the necessary information.

1.4 Manual addenda

Any improvements or changes concerning the instrument or manual will be explained in an addendum included with the manual. Be sure to note these changes and incorporate them into the manual.

1.5 Safety symbols and terms

The following symbols and terms may be found on an instrument or used in this manual.

The symbol on an instrument indicates that the user should refer to the operating instructions located in the instruction manual.

1.7 Inspection

The Model 7001 was carefully inspected, both electrically and mechanically before shipment. After unpacking all items from the shipping carton, check for any obvious signs of physical damage that may have occurred during transit. Report any damage to the shipping agent immediately. Save the original packing carton for possible future reshipment. The following items are included with every Model 7001 order:

¥ Model 7001 Switch System

¥ Model 7001 Instruction Manual

¥ Accessories as ordered.

If an additional instruction manual is required, order the manual package, Keithley part number 7001-901-

00. The manual package includes an instruction manual and any pertinent addenda.

1.8 Optional accessories

The symbol on an instrument shows that high voltage may be present on the terminal(s). Use standard safety precautions to avoid personal contact with these voltages.

The WARNING heading used in this manual 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 used in this manual explains hazards that could damage the scanner card. Such damage may invalidate the warranty.

1.6 Speciﬁcations

Model 7001 speciÞcations may be found at the front of this manual.

The following accessories are available from Keithley for use with the Model 7001.

Model 4288-1 Single Fixed Rack Mount Kit; mounts a

single Model 7001 in a standard 19-inch rack.

Model 4288-2 Dual Fixed Rack Mount Kit; mounts

two Model 7001s side-by-side in a standard 19-inch rack.

Model 4288-3 Dual Fixed Rack Mount Kit; mounts

one Model 7001 and a Model 199 DMM side-by-side in a standard 19-inch rack.

Model 8502 Trigger Link Adapter; allows you to con-

nect the Trigger Link of the Model 7001 to an instrument that uses the standard BNC (In/Out) external triggering technique.

1-2

General Information

Models 8501-1 and 8501-2 Trigger Link Cables: The

Model 8501-1 is one meter in length, and the Model 8501-2 is two meters in length.

Model 7007 Shielded IEEE-488 Cables: Connects the

Model 7001 to the IEEE-488 bus using shielded cables to reduce electromagnetic interference (EMI). The Model 7007-1 is one meter in length and has an EMI shielded IEEE-488 connector at each end. The Model 7007-2 is identical to the Model 7007-1, but is two meters in length.

1-3

Card Installation

ATTENTION FIRST TIME USERS

If you are a ﬁrst time user , it is recommended that you perform the operation demo in Section 3, Getting Started (paragraph 3.3) before installing any switching cards into the mainframe. This demo will acquaint you with basic front panel operation.

WARNING

The procedures in this section are intended for use only by qualiÞed service personnel. Do not perform these procedures unless qualiÞed to do so. Failure to recognize and observe normal safety precautions could result in personal injury or death.

2.1 Introduction

The Model 7001 is designed to be used with the Model 701X series switch cards (i.e. Model 7011, 7012, and

7013), and with cards that were originally designed to be used with the Keithley Model 705/706 scanners.

2.3 Non-701X series card installation: Explains how

to install cards designed for the Model 705/706 scanner in the Model 7001.

2.2 Model 701X series card installation

WARNING

Turn off power from all instrumentation (including the Model 7001 mainframe) and disconnect their line cords. Make sure all power is removed and stored energy in external circuitry is discharged.

NOTE

Installation procedures in this section are organized as follows:

2.2 Model 701X series card installation: Explains how

to install a Model 701X series card (such as the Model 7011, 7012, or 7013) card in the Model 7001.

If using the screw terminal connector card, make sure your external circuitry is wired to the card (as explained in the instruction manual for the card) before installing the card assembly in the Model 7001 mainframe.

2-1

Card Installation

CAUTION

To prevent contamination to the switch card that could degrade performance, only handle the card assembly by the edges and shields. If contamination occurs, clean the card as explained in its instruction manual.

Card installation

Perform the following steps to install the card assembly in the Model 7001 mainframe:

1. Mate the connector card to the relay card if they are separate. Make sure to handle the cards by the edges and shields to prevent contamination.

2. Facing the rear panel of the Model 7001, select the slot (CARD 1 or CARD 2) that you wish to install the card in.

3. Referring to Figure 2-1 or Figure 2-2, feed the card assembly into the desired slot such that the edges of the relay card ride in the rails.

4. With the ejector arms in the unlocked position, push the card assembly into the mainframe until the arms engage into the ejector cups. Then push both arms inward to lock the card all the way into mainframe.

5. For the multi-pin connector card, install the screw shown in Figure 2-1.

Notes:

1. Once a Model 701X series card is installed in the mainframe, the Model 7001 automatically identiÞes it on power up. This ID allows the Model 7001 to conÞgure itself for proper operation.

2. When a Model 701X series card is installed, the slot assignment (Card TYPE) is performed automatically on power-up. A slot assignment change could make a channel that is currently included in the Scan List and/or a Channel Pattern unavailable. The unavailable channel causes the Scan List and/ or the affected Channel Pattern to clear (see paragraph 4.5.2 and 4.5.5 for details).

Card removal

To remove the card assembly, Þrst unlock it by pulling the ejector arms outward, then pull the card assembly out of the mainframe. Remember to handle the card assembly by the edges and shields to avoid contamination that could degrade performance.

2.3 Non-701X series cards

WARNING

Turn off power from all instrumentation (including the Model 7001 mainframe) and disconnect their line cords. Make sure all power is removed and stored energy in external circuitry is discharged.

NOTE

If using a card that requires connections to be made on the card, make sure your external circuitry is wired to the card (as explained in the instruction manual for the card) before installing the card in the Model 7001 mainframe.

CAUTION

To prevent contamination to the switch card that could degrade performance, only handle the card by the edges. If contamination occurs, clean the card as explained in its instruction manual.

Card installation

Perform the following steps to install the card in the Model 7001 mainframe:

1. Facing the rear panel of the Model 7001, select the slot (CARD 1 or CARD 2) that you wish to install the card in.

2. Using Figure 2-1 or Figure 2-2 as a guideline, feed the card into the desired slot such that the edges of the card ride in the rails.

3. With the ejector arms in the unlocked position, push the card assembly into the mainframe until the arms engage into the ejector cups. Then push both arms inward to lock the card into the mainframe.

2-2

Card Installation

NOTE

The Model 7001 cannot automatically identify non-701X cards. After the mainframe is powered up, you must enter the model number using the TYPE menu item in the CARD CONFIG MENU (see paragraph 3.5.3 in Getting Started).

Card removal

To remove the card, Þrst unlock it by pulling the ejector arms outward, then pull the card out of the mainframe. Remember to handle the card by the edges to avoid contamination that could degrade performance.

Ejector Arms (2)

Figure 2-1

Multi-pin card installation

Ejector Cup

Screw

2-3

Card Installation

Ejector Cup

Ejector Arms (2)

Figure 2-2

Screw terminal card installation

2-4

Getting Started

3.1 Introduction

This section contains introductory information on using your Model 7001 Switch System. For detailed front panel and IEEE-488 bus operation, refer to Sections 4 and 5 respectively.

The information in this section is arranged as follows:

3.2 Front and rear panel conﬁguration: Summarizes

the controls and display on the front panel of the instrument.

3.3 Operation demo: Demonstrates basic operation

using the built-in 40-channel multiplexer simulator. Recommended for ﬁrst time users.

3.4 Overview of scan process: Provides a brief over-

view of the scan process.

3.5 Initial conﬁguration: Goes over some initial con-

ﬁguration information that should be considered before operating the instrument.

3.6 Front panel operation: Demonstrates basic front

panel operation through the use of simple examples.

3.7 IEEE-488.2 and SCPI basics: Discusses funda-

mental information concerning operation over the IEEE-488 bus.

3.2 Front and rear panel conﬁgurations

3.2.1 Front panel controls

The front panel controls of the Model 7001 are shown in Figure 3-1. This ﬁgure includes important abbreviated information that should be reviewed before operating the instrument. Notice that some of the controls are dual-function, rocker-action type keys. These include SCAN/CARD CONFIGURATION, DELETE/INSERT, EXIT/ENTER and / .

3.2.2 Rear panel

The rear panel of the Model 7001 is shown in Figure 3-

2. This ﬁgure also includes important abbreviated

information that should be reviewed before operating the instrument.

3-1

Getting Started

1 2

INFO

LOCAL

POWER

4 5

INFO

Displays on-line help information. Press again (or EXIT) to cancel message.

LOCAL

Cancels remote, restores front panel control.

POWER

0 =off 1 = on

OPEN A LL

Opens all channels of both slots. Also, aborts a scan that is in progress and places 7001 in idle state.

SCAN L IST

Toggles between Scan List and Channel List

CLEA R LI ST

Clears the displayed Channel List or Scan List.

STEP

Takes 7001 out of idle state and steps through Scan List

1234567891012345678910

CARD 1 CARD 2

OPEN ALL

SCAN LIST

CLEAR LIST

STEP

MEMORY

STORE

RECALL

10 11

STORE

Stores channel pattern at a specified memory location.

RECALL

Restores 7001 to a channel pattern stored at a specified memory location.

OPE N

Opens the specified (displayed) channels in Channel List.

SCAN CONFIGURATION

Enables CONFIGURE SCAN MENU : CHAN-CONTROL SCAN-CONTROL ARM-CONTROL

CHAN-RESTRICTIONS

7001 SWITCH SYSTEM

OPEN

CONFIGURATION

SCAN CARD

DELETE INSERT

13 14

15 16

CA RD CON FI GURATI O N

Enables CARD CONFIG MENU : TYPE #-OF-POLES CARD-PAIR DELAY READ-I/O-CARD

Enables MAIN MENU: SAVESETUP GPIB DIGITAL-I/O TEST LANGUAGE

GENERAL

321

654

987

M0—

ENTEREXIT

Closes the specified (displayed) channels in Channel List.

DE LETE

Delete selected entry from Channel List or Scan List.

INSERT

Insert next entry at selected location in the Channel List or Scan List.

EXIT

Back up to previous menu selection, or exit from the menu.

ENTER

Execute the pending operation. Also, separate channels and terminate a Channel List or Scan List.

KEYPAD

0 - 9; use to enter numbers.

- ; use to specify a range of channels (i.e. 1!1 - 1!40). M ; use to precede a specified memory location number. ; use to move cursor left or ; use to move cursor right. Also, use to separate channels and terminate a Channel List on Scan List.

Figure 3-1

Model 7001 front panel

3-2

Getting Started

1 CARD 1

Slot 1 for switch card. Corresponds to Card 1 channel status display.

2 CARD 2

Slot 2 for switch card. Corresponds to Card 2 channel status display.

3 IEEE-488

CONNECTOR

Use standard IEEE-488 cables.

4 DIGITAL I/O

Micro 8-pin DIN connector. Port consists of four TTL output lines and one TTL input line (one common line).

Figure 3-2

Model 7001 rear panel

5 TRIGGER LINK IN AND

OUT

Two micro 8-pin DIN connectors.

6 CHANNEL READY

Female BNC connector for TTL output trigger pulse.

7 EXTERNAL TRIGGER

Female BNC connector for TTL input trigger pulse.

8 LINE POWER INPUT

WARNING: Connect to grounded outlet using three-wire power cord.

3-3

Getting Started

3.2.3 Channel status display

The channel status display provides real-time status of each available channel for the two slots. Only the available channels are displayed. There are two channel status display modes; the Channel List entry mode (SELECT CHANNELS) and the Scan List entry mode (SCAN CHANNELS). On power-up, the Channel List entry mode is selected. The SCAN LIST key toggles between the Channel List and the Scan List. The instrument can be returned to the channel status display by pressing the EXIT key one or more times.

The channel status display is shown in Figure 3-3. This display is structured as two 10-column grids. The left grid provides the channel status of the card installed in slot 1 (CARD 1) and the right grid provides the channel status of the card installed in slot 2 (CARD 2). As shown in the illustration, an open channel is represented as a “dot” while a closed channel is represented as a “dash”.

Channel assignments

mat is automatically determined by the card type. There is a three-integer format to express matrix card channels, and a two-integer format to express channels for all other types of switching cards. The individual integers that make up the channel assignment are separated by an exclamation point (!).



The channel assignment for-

is Row 1, the second row from the top is Row 2, the next row is Row 3, and the bottom row is Row

4. The third integer designates the column of the matrix card. The 10 matrix columns are displayed by the channel status display. The assignments for all matrix card channels are presented in Figure 3-4.

If, for example, CARD 1 in Figure 3-3 happened to be a Model 7012 matrix card, the following channels would be closed:

Channel 1!2!3 (Slot 1, Row 2, Column 3)

Channel 1!4!9 (Slot 1, Row 4, Column 9)

All other card types: All non-matrix type switch-

ing cards use the two-integer format to express channel assignments. The ﬁrst integer, like the matrix card, designates the slot number. The second integer designates switch card channel number. The channel assignments for these card types are presented in Figure 3-5.

If, for example, CARD 2 in Figure 3-3 happened to be a Model 7011 multiplexer card, the following channels would be closed:

Channel 2!14 (Slot 2, Channel 14)

Matrix cards: Matrix cards use the three-integer

format to express channel assignments. The ﬁrst integer designates the slot number that the card is installed in. Thus, a “1” designates slot 1 (CARD 1), and a “2” designates slot 2 (CARD 2). The second integer designates the row number of the matrix card. There are four rows; the top row

3-4

Channel 2!36 (Slot 2, Channel 36)

For the Model 7011 multiplexer card, Channel 14 corresponds to Bank 1, Relay 4, and Channel 36 corresponds to Bank 3, Relay 6. See the Model 7011 instruction manual for details.

CARD 1 CARD 2

Getting Started

1 23

= Open Channel = Closed Channel

Figure 3-3

Channel status display

1 2 3 4 5 6 7 8 9 10

1!1!1

1!2!1

1!3!1

1!4!1

REM4TALK

1!1!2

1!2!2

1!3!2

1!4!2

LSTN7SRQ

1!1!3

1!2!3

1!3!3

1!4!3

89101234567

Channel 2!36 for Mux Channel 2!4!6 for Matrix

1!1!4

1!2!4

1!3!4

1!4!4

1!1!5

1!2!5

1!3!5

1!4!5

1!1!6

1!2!6

1!3!6

1!4!6

1!1!7

1!2!7

1!3!7

1!4!7

1!1!8

1!2!8

1!3!8

1!4!8

1!1!9

1!2!9

1!3!9

1!4!9

ARM

8910

1!1!10

1!2!10

1!3!10

1!4!10

A. Slot 1 (Card 1)

1 2 3 4 5 6 7 8 9 10

2!1!1

2!2!1

2!3!1

2!4!1

2!1!2

2!2!2

2!3!2

2!4!2

B. Slot 2 (Card 2)

Exampels : 1!2!4 = Slot 1, Row 2, Column 4 2!3!6 = Slot 2, Row 3, Column 6

Figure 3-4

Channel assignments (matrix cards)

2!1!3

2!2!3

2!3!3

2!4!3

2!1!4

2!2!4

2!3!4

2!4!4

2!1!5

2!2!5

2!3!5

2!4!5

2!1!6

2!2!6

2!3!6

2!4!6

2!1!7

2!2!7

2!3!7

2!4!7

2!1!8

2!2!8

2!3!8

2!4!8

2!1!9

2!2!9

2!3!9

2!4!9

2!1!10

2!2!10

2!3!10

2!4!10

3-5

Getting Started

1 2 3 4 5 6 7 8 9 10

1!1

1!2

1!3

1!4

1!5

1!6

1!7

1!8

1!9

1!10

1!11

1!21

1!31

1!12

1!22

1!32

1!13

1!23

1!33

1!14

1!24

1!34

1!15

1!25

1!35

1!16

1!26

1!36

1!17

1!27

1!37

1!18

1!28

1!38

1!19

1!29

1!39

A. Slot 1 (Card 1)

1 2 3 4 5 6 7 8 9 10

2!1

2!11

2!21

2!31

2!2

2!12

2!22

2!32

2!3

2!13

2!23

2!33

2!4

2!14

2!24

2!34

2!5

2!15

2!25

2!35

2!6

2!16

2!26

2!36

2!7

2!17

2!27

2!37

2!8

2!18

2!28

2!38

2!9

2!19

2!29

2!39

B. Slot 2 (Card 2)

1!20

1!30

1!40

2!10

2!20

2!30

2!40

Exampels : 1!18 = Slot 1, Channel 18 2!36 = Slot 2, Channel 36

Figure 3-5

Channel assignments (non-matrix type cards)

3-6

+ 321 hidden pages

Keithley 7001 User Manual

Safety Precautions

7001 High Density Switch System Specifications

Table of Contents

List of Illustrations

List of Tables

General Information

1.1 Introduction

1.2 Features

1.3 Warranty Information

1.4 Manual addenda

1.5 Safety symbols and terms

1.7 Inspection

1.8 Optional accessories

Card Installation

2.1 Introduction

2.2 Model 701X series card installation

2.3 Non-701X series cards

Getting Started

3.1 Introduction