Keithley 6220

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9-10 Limit Test and Digital I/O Model 6220/6221 Reference Manual

Return to Section 9 topics

Table 9-4

Digital I/O port values

Value*Out 4Out 3Out 2Out 1

0LLLL

1LLLH

2LLHL

3LLHH

4LHLL

5LHLH

6LHHL

7 LHHH

8HLLL

9HLLH

10HLHL

11 H L H H

12 H H L L

13 H H L H

14HHHL

15HHHH

*L = Grounded

H ≥ +3V

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

Table of Contents

Default Chapter7
- Table of Contents7
- List of Illustrations17
- List of Tables21
1 Getting Started26
- Introduction26
  - Capabilities and Features26
  - Organization of Manual Sections26
- General Information27
- Front and Rear Panel Familiarization31
- Heat Sink and Cooling Vents36
- Power-Up38
- Menus42
  - CONFIG Menus42
  - Direct Access Menus43
- Editing Controls44
- Password46
- Interface Selection46
  - GPIB and Language47
  - Ethernet (Model 6221 Only)47
- Error and Status Messages48
- Default Settings48
  - Front Panel Setups48
  - Remote Operation Setups49
- SCPI Programming53
  - Optional Command Words53
  - Query Commands53
2 Output Connections55
- Figure 2-16 Banana Jack Guard Connections55
- Figure 2-17 Floating Current Source Connections55
- Output Connectors56
- Output Configurations59
- Guards62
- Floating the Current Source67
- Connections to DUT69
- Using a Test Fixture74
  - Custom-Built Test Fixture74
  - Figure 2-18 Custom-Built Test Fixture75
600 DC Current Source Operation80
- Current Source Output Capabilities80
- Setting Source and Compliance87
- Sourcing Current92
  - Remote Programming - Source Output Commands94
3 DC Current Source Operation95
- Table 3-2 DC Output Commands95
- Programming Example95
4 Sweeps97
- Overview98
  - Section Overview98
  - Sweep Overview98
- Sweep Characteristics100
- Front Panel Sweep Operation106
- Remote Sweep Operation110
5 Delta, Pulse Delta, and Differential Conductance121
- Part 1121
- Overview122
  - Section Overview122
  - Operation Overview122
- Test Systems124
- Data Flow and Read Commands133
  - Data Flow133
  - Read Commands135
- Measurement Units136
- Error and Status Messages138
- Delta140
- Pulse Delta152
- Differential Conductance171
6 Averaging Filter, Math, and Buffer187
- Averaging Filter188
- Math195
- Buffer197
7 Wave Functions (6221 Only)206
- Overview206
  - Section Overview206
  - Wave Function Overview206
- Wave Function Characteristics207
- Front Panel Wave Function Operation218
- Remote Wave Function Operation225
8 Triggering238
- Trigger Models238
- Front Panel Trigger Operation243
  - Using the Trigger Configuration Menu243
  - Configuring Triggering244
- Remote Trigger Operation245
- External Triggering249
- Limit Test256
9 Limit Test and Digital I/O259
- Digital I/O Port259
10 Remote Operations266
- Selecting and Configuring an Interface266
- Programming Syntax276
- GPIB Interface Reference283
- RS-232 Interface Reference289
- Ethernet Interface Reference293
- Using the Example Software299
- Figure 10-13 Typical Virtual Front Panel302
- Figure 11-3 Status Byte and Service Request303
11 Status Structure304
- Overview304
- Clearing Registers and Queues306
- Programming and Reading Registers307
- Status Byte and Service Request (SRQ)309
- Status Register Sets312
- Queues322
  - Output Queue322
  - Error Queue322
12 Common Commands325
13 Display, Format, and System Key-Press Codes331
- Display Subsystem332
- Table 13-1 Display Commands332
- Format Subsystem334
- System Key-Press Codes339
14 SCPI Reference Tables344
- General Notes344
- Table 14-5 Sense Command Summary349
- Table 14-9 Trace Command Summary358
- Table 14-10 Trigger Command Summary359
- Table 14-11 Units Command Summary360
15 KI-220 Language361
- Introduction361
  - Notes362
- Introduction362
- Table 15-1 DDC Emulation Commands362
- Test Requirements369
- Recommended Test Equipment370
  - Test Equipment Connections370
- Calculating Test Limits370
  - Example Limit Calculation370
- Restoring Factory Defaults371
- Test Summary and Considerations371
  - Test Summary371
  - Test Considerations371
- Verification Procedures372
17 Calibration377
- Introduction378
- Calibration Requirements379
- Recommended Calibration Equipment380
  - Calibration Equipment Connections380
- Restoring Factory Defaults380
- Calibration Summary and Considerations381
  - Calibration Summary381
  - Calibration Considerations381
- Calibration Procedures381
- SCPI Commands - Calibration396
- Table 17-5 Calibration Commands396
- Table 17-6 CAL:PROT:SENS Command Parameter Ranges398
- Table 17-7 CAL:PROT:SOUR Command Parameter Ranges398
- Calibration Dates, Count, and Password400
  - Viewing Calibration Dates and Count400
  - Changing the Calibration Password400
- Specifications403
  - Figure 2-3 INTERLOCK407
- Error and Status Messages408
  - Table B-1 Status and Error Messages409
  - Introduction415
- IEEE-488 Bus Overview415
100 C IEEE-488 Bus Overview420
- Interface Function Codes428
- IEEE-488 and SCPI Conformance Information430
  - Introduction431
500 D IEEE-488 and SCPI Conformance Information432
- Table D-2 Coupled Commands432
- Calibration Source435
- Resistivity Measurements436
- Diode Characterization437
- Transistor Characterization438
- External User-Supplied Filter440
- Compliance Overshoot Prevention444

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