Keithley 2701 User Manual

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Model 2701 User’s Manual Limits and Digital I/O 9-9

Figure 9-4

Controlling externally powered relays

4.75kW

Pull Up Resistor

Pin 9 - Digital Ground

Digital Output

Pin 7 - Diode Clamp

Relay

Coil

Relay

Coil

+

+

-

-

External Power

(+5V to +33V)

External Power

(+5V to +33V)

Model 2701

Transistor Switch

Flyback

Diode

Equivalent Circuit

Digital Output #1

Flyback Diode

Control

Line

33V

+5V

Table of Contents

Default Chapter7
- Table of Contents7
Getting Started25
- General Information26
- Model 2701 Features31
- Plug-In Switching Modules32
  - Pseudocards32
  - Identifying Installed Switching Modules32
Getting Started32
- Table 1-1 Model 77Xx Series Switching Modules33
- Front and Rear Panel Familiarization35
- Power-Up40
- Display44
- Defaults and User Setups46
- Remote Programming Information52
- Quick Start Exercises53
Closing and Opening Switching Module Channels67
- Close/Open Overview68
- Switching Module Installation and Connections70
- Channel Assignments72
- System Channel Operation73
- Multiple Channel Operation82
- Identifying Installed Modules and Viewing Closed Channels96
- Relay Closure Count100
  - Reading Relay Closure Count101
  - Setting Count Update Interval101
- Model 7700 Switching Module102
Basic DMM Operation105
- DMM Measurement Capabilities106
- High Energy Circuit Safety Precautions107
- Performance Considerations108
- Channel List Parameter (<Clist>)111
- Voltage Measurements (DCV and ACV)112
- Current Measurements (DCI and ACI)121
- Resistance Measurements (Ω2 and Ω4)124
- Temperature Measurements137
- Frequency and Period Measurements150
- Continuity Testing152
  - Connections153
  - Continuity Testing Procedure154
- Remote Programming for Basic Measurements155
- Measurement Queries162
Range, Digits, Rate, Bandwidth, and Filter Range167
- Measurement Ranges and Maximum Readings168
- Range168
4 Range, Digits, Rate, Bandwidth, and Filter170
- Remote Programming - Range170
- Table 4-2 Range Commands170
- Digits172
- Rate and Bandwidth174
- Filter180
Relative, Math, Ratio, Channel Average, and Db Relative189
- Basic Operation190
- Relative190
5 Relative, Math, Ratio, Channel Average, and Db192
- Remote Programming - Rel192
- Table 5-1 Rel Commands192
- Math195
- Ratio and Channel Average203
Buffer211
- Buffer Overview212
- Front Panel Buffer212
- Remote Programming - Buffer218
  - Buffer Commands218
6 Buffer219
- Table 6-1 Buffer Commands219
- Programming Example225
Scanning227
- Scanning Fundamentals228
- Scan Conﬁguration237
- Scan Operation247
- Remote Programming - Scanning252
7 Scanning254
- Scanning Examples258
  - External Trigger Scan258
    - Figure 7-4 External Trigger Scan Example259
    - Table 7-2 External Trigger Scan Example260
  - Monitor Scan261
    - Figure 7-5 Monitor Scan Example262
    - Table 7-3 Monitor Scan Example263
Triggering265
- Trigger Model266
8 Triggering268
- Reading Hold (Autosettle)270
  - Hold Example270
8 Triggering271
- External Triggering271
- Remote Programming - Triggering278
Limits and Digital I/O283
9 Limits and Digital I/O284
- Limits284
- Digital I/O287
9 Limits and Digital I/O293
- Remote Programing - Limits and Digital Output294
  - Limits and Digital Output Commands294
  - Limits and Digital Outputs Programming Example296
- Application - Sorting Resistors296
Remote Operations301
- Operation Enhancements302
- System Commands303
10 Remote Operations306
- Ethernet Setup307
10 Remote Operations309
- Internal Web Page316
- Front Panel Aspects of Ethernet Operation320
- Programming Syntax321
- RS-232 Interface Operation328
Status Structure335
- Overview336
- Clearing Registers and Queues338
11 Status Structure339
- Programming and Reading Registers339
- Status Byte and Service Request (SRQ)342
- Status Register Sets344
- Queues356
Common Commands359
12 Common Commands360
- Table 12-1 Common Commands and Queries360
SCPI Signal Oriented Measurement Commands367
- Table 13-1 Signal Oriented Measurement Command Summary368
- Configure:<Function> [<Rang>], [<Res>], [<Clist>]370
- Fetch372
- Read373
- Measure:<Function>? [<Rang>], [<Res>], [<Clist>]374
Format and Miscellaneous System Commands377
- Format Commands378
  - Format:elements <Item List378
  - Figure 14-1 ASCII Data Format379
14 Format and Miscellaneous System Commands379
- Miscellaneous System Commands380
SCPI Reference Tables383
- Reference Tables384
15 SCPI Reference Tables385
- Table 15-1 Calculate Command Summary385
- Table 15-2 Display Command Summary387
- Table 15-4 Route Command Summary388
- Table 15-5 Sense Command Summary398
- Table 15-6 Status Command Summary401
- Table 15-7 System Command Summary402
- Table 15-8 Trace Command Summary407
- Table 15-9 Trigger Command Summary408
- Table 15-10 UNIT Command Summary409
- Specifications411
- Model 7700 Connection Guide421
  - Card Conﬁguration - Schematic422
B Model 7700 Connection Guide423
- Figure B-1 Simplified Schematic for Model 7700423
- Connections and Wiring424
- Status and Error Messages433
100 C Status and Error Messages434
- Table C-1 Status and Error Messages434
- Signal Processing Sequence and Data Flow442
- Measurement Considerations456
E Measurement Considerations461
- Figure E-2 Power Line Ground Loops461
- Figure E-3 Eliminating Ground Loops461
- Shielding462
- Figure E-4 Shielding Example462
- Meter Loading463
Temperature Equations465
- Thermocouple Equation466
F Temperature Equations467
- Thermistor Equation470
- RTD Equations472
  - Table F-10 RTD Parameters473
KE2700 Instrument Driver Examples476
- Introduction476
- Visual Basic and CVI (C) Examples476
  - KE2700 Instrument Driver Examples477
G KE2700 Instrument Driver Examples478
- Table G-1 Visual Basic and CVI (C) Examples478
- Table486
- Labview Examples486

Other manuals for Keithley 2701

Instruction Manual61 pages

Service Manual168 pages

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Keithley 2701 Specifications

General

Max Voltage	300 V
Max Current	3 A
Frequency Range	3 Hz to 500 kHz
Frequency Accuracy	0.01%
Weight	3.6 kg
Measurement Functions	Frequency, Temperature
Interface	IEEE-488 (GPIB), RS-232
DC Voltage Range	300 V
DC Current Range	3 A
AC Voltage Range	300V
AC Current Range	1 μA to 3 A
Resistance Accuracy	0.01%
Channels	10
Dimensions	213mm x 88mm x 370mm

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