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12-4 Digital I/O Port, Output Enable, and Output Configuration Models 2500 and 2502 User’s Manual

Digital output conﬁguration

There are two basic methods to connect external components to the digital output lines,

sink operation and source operation.

Sink operation

Figure 12-2 shows the basic output conﬁguration for sink operation. Note that the external

relay coil is connected between the digital output line (pins 1 to 4) and +5V (pin 7). With

this conﬁguration, the digital output line must be set LO to energize the relay, and the

maximum sink current is 500mA.

Figure 12-2

Sink operation

Model 2500 External

Relay

To Other

Circuits

+5V

Maximum Sink Current: 500mA

Pin 7

Pins 1-4

Pin 9

Digital I/O

Port

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

TestEquipmentDepot.com

Default Chapter7
- Table of Contents7
1 Getting Started33
- General Information34
- Product Overview37
- Front and Rear Panel Familiarization38
- Power-Up42
- Display45
- Default Settings48
- Menus52
2 Connections63
- Connection Precautions64
- INPUT and OUTPUT Connectors64
- Connector Terminals65
  - Triax INPUT Connectors65
  - OUTPUT Connectors65
- Output Enable66
- Photodiode Connections66
- Alternate Connecting Methods71
  - Current Measurement Connections71
  - Voltage Source Connections72
- Analog Output Connections (Model 2502 Only)73
3 Basic Operation78
- Operation Overview79
- Operation Considerations81
- Basic Measurement Procedure87
- Using the Analog Outputs (Model 2502 Only)91
- Table 3-7 Basic Measurement Command Sequence91
4 Photodiode Measurements92
- Conﬁguring Measurements93
- Front Panel Photodiode Measurements95
  - Photodiode Measurement Circuit Conﬁguration95
  - Front Panel Photodiode Measurement Procedure95
- Remote Photodiode Measurements96
5 Measurement Concepts100
- Source-Delay-Measure Cycle101
- Sweep Waveforms103
- Bias Source Operating Boundaries105
- Data Flow107
6 Range, Digits, Speed, and Filters110
- Range and Digits111
- Speed114
  - Setting Speed115
    - Speed-Accuracy Menu115
  - Remote Speed Programming116
    - Speed Commands116
    - Speed Programming Example116
- Filters116
7 Relative, Math, Ratio, and Delta124
- Relative125
  - Front Panel Rel125
  - Remote Rel Programming126
- Measurement Math Functions127
- RATIO and DELTA131
8 Data Store136
- Data Store Overview137
- Front Panel Data Store137
- Remote Command Data Store141
9 Sweep Operation143
- Sweep Types144
- Conﬁguring and Running a Sweep148
10 Triggering158
- Trigger Model (Front Panel Operation)159
- Trigger Link165
- Conﬁguring Triggering171
  - CONFIGURE TRIGGER Menu171
  - Figure 10-8 Conﬁgure Trigger Menu Tree173
- Remote Triggering174
11 Limit Testing183
- Types of Limits184
- Operation Overview186
- Binning Systems192
- Digital Output Clear Pattern196
  - Enabling Auto-Clear196
  - Auto-Clear Timing197
- Conﬁguring and Performing Limit Tests198
  - Conﬁguring Limit Tests198
  - Performing Limit Tests200
- Remote Limit Testing202
12 Digital I/O Port, Output Enable, and Output Conﬁguration205
- Digital I/O Port206
- Output Enable210
- Figure 12-4 Using Test Fixture Output211
- Front Panel Output Conﬁguration212
  - Conﬁgure OUTPUT Menu212
- Remote Output Conﬁguration213
  - Output Conﬁguration Commands213
  - Output Conﬁguration Programming Example214
13 Remote Operations215
- Differences: Remote Vs. Local Operation216
  - Local-To-Remote Transition216
  - Remote-To-Local Transition216
- Selecting an Interface216
- GPIB Operation217
- General Bus Commands220
- Front Panel GPIB Operation223
- Programming Syntax224
- RS-232 Interface Operation231
14 Status Structure235
- Overview236
- Clearing Registers and Queues238
- Programming and Reading Registers239
- Status Byte and Service Request (SRQ)241
- Status Register Sets245
- Queues253
  - Output Queue253
  - Error Queue254
    - Programming Example - Read Error Queue255
    - Table 14-9 Error Queue Commands255
15 Common Commands256
- Command Summary257
- Command Reference258
16 SCPI Signal-Oriented Measurement Commands262
- Command Summary263
- Conﬁguring Measurement Function263
  - Configure:current[:DC]263
- Acquiring Readings264
17 SCPI Command Reference267
- Reference Tables268
  - Table 17-1 Calculate Command Summary271
  - Table 17-2 Display Command Summary274
  - Table 17-3 Format Command Summary275
  - Table 17-4 Output Command Summary276
- Table 17-5 Sense Command Summary277
- Table 17-6 Source Command Summary279
- Table 17-7 Status Command Summary284
- Table 17-8 System Command Summary285
- Table 17-9 Trace Command Summary286
- Table 17-10 Trigger Command Summary287
- Calculate Subsystems288
- Calculate[1] and Calculate2289
  - Select Math Function289
- Set MX + B Parameters290
  - Mbfactor <N290
  - Mmfactor <N290
  - Munits <Name290
- Set Optical Power Parameters291
  - DC<N291
  - Resp<N291
- Enable and Read Math Function Result292
  - State <B292
  - Data292
  - Latest292
- Calculate3 and Calculate4293
  - Select Input Path293
    - FEED <Name293
  - Set or Acquire Relative Value294
    - Acquire294
    - Offset <N294
  - Enable and Read Relative Result294
    - Data294
    - State <B294
- Calculate5295
  - Select RATIO Calculation Mode295
    - Format <Name295
  - Enable and Read RATIO Result295
    - Data295
    - State <B295
- Calculate6296
  - Select DELTA Calculation Mode296
    - Format <Name296
  - Enable and Read DELTA Result296
    - Data296
    - State <B296
- Calculate7297
  - Select Input Path297
    - FEED <Name297
  - Read Limits Data298
    - Data298
    - Latest298
  - Conﬁgure and Control Limit Tests298
  - Calculate8305
  - Display Subsystem306
  - Format Subsystem309
  - Output Subsystem318
- Sense Subsystem320
  - Select Measurement Range320
  - Set Measurement Speed322
    - Nplcycles <N322
  - Conﬁgure and Control Filters323
- Source Subsystem326
  - Source[1] and Source2326
  - Control Source Output On-Off326
    - MODE <Name326
    - [:Immediate]326
  - Select Sourcing Mode327
    - MODE <Name327
  - Select Range327
    - Range <N327
    - AUTO <B328
  - Set Amplitude for Fixed Source329
    - [:Immediate][:Amplitude] <N329
    - Triggered[:Amplitude] <N330
  - Set Delay331
    - AUTO <B331
    - Delay <N331
  - Select Ground Connect Mode332
    - Gconnect <B332
  - Conﬁgure Sweeps332
  - Status Subsystem344
  - System Subsystem347
  - Error Queue348
  - Simulate Key Presses350
    - Key350
  - Read Version of SCPI Standard351
    - Version351
  - RS-232 Interface351
  - Reset Timestamp352
    - Reset352
- Trace Subsystem353
  - Read and Clear Buffer353
    - Clear353
    - Data353
  - Conﬁgure and Control Buffer354
  - Select Timestamp Format355
    - Format <Name355
- Trigger Subsystem356
  - Initiate Source/Measure Cycle356
    - Initiate356
  - Abort Source/Measure Cycle356
    - Abort356
  - Program Trigger Model357
- Data Flow375
  - Figure C-1 Data Flow Block Diagram376
  - Introduction376
  - SENS1 and SENS2377
  - Calculate3:Data? and Calculate4:Data378
  - Calculate5:Data? and Calculate6:Data378
  - Calculate7:Data378
  - Calculate8:Data378
  - Calculate[1]:Data? and Calculate2:Data378
  - Trace:data378
- IEEE-488 Bus Overview379
  - Introduction380
  - Bus Description381
  - Figure D-1 IEEE-488 Bus Conﬁguration382
  - Bus Lines383
  - Bus Commands385
500 D IEEE-488 Bus Overview389
- Interface Function Codes392
- Test Equipment Depot - 800.517.8431 - 99 Washington Street Melrose, MA393
IEEE-488 and SCPI Conformance Information395
- Introduction395
  - Table E-2 Coupled Commands397
Measurement Considerations398
- Low Current Measurements399
- General Measurement Considerations404
GPIB 488.1 Protocol408
- Introduction409
- Selecting the 488.1 Protocol409
- Protocol Differences410
Example Programs412
- Test Equipment Depot - 800.517.8431 - 99 Washington Street Melrose, MA412
- Introduction413
- Basic Measurement Program414
- Photodiode Measurement Program415
- Data Store Program416
- Linear Sweep Program417
- Limit Test Program418

Brand	Keithley
Model	2500
Category	Measuring Instruments
Language	English

Keithley 2500 User Manual

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