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12-2 Limit Testing 2400 Series SourceMeter

User’s Manual

Types of limits

As shown in Figure 12-1, there are 11 limit tests that can be performed on a DUT. These

limits include:

• Limit 1: compliance test

• Limit 2: course limits

• Limits 3, 5-12: ﬁne limits

NOTE Limit 4 is reserved for the contact check option. See Appendix F for details.

A test is only performed if it is enabled. Thus, you can perform one, two, or all 11 tests.

The tests are always performed in the order shown in the drawing.

Figure 12-1

Limit tests

Pass

Limit

Fail Fail

Limit

Pass or Fail on Compliance

Pass

Limit

Fail

Limit

Limit 1 Test

(Compliance)

Limit 2 Test

(Coarse Limits)

Limit 3, 5-12 Tests

(Fine Limits)

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Default Chapter8
- Table of Contents8
1 Getting Started38
- General Information39
Getting Started39
- Inspection40
- Options and Accessories40
- Product Overview42
- Front and Rear Panel Familiarization44
  - Front Panel Summary44
  - Rear Panel Summary46
- Power-Up47
- Table49
- Table52
  - Basic Display Commands52
    - Front Panel Tests53
  - Default Settings53
- Table54
  - Remote Setups57
  - Table 1-5 Main Menu58
- Main Menu Tree60
  - Rules to Navigate Menus61
    - Toggling the Source and Measure Display Fields62
    - Front Panel Control63
  - Measurement Conﬁguration Menus64
- Table64
  - Figure64
  - Source and Range Conﬁguration Menus65
- Table65
  - Figure65
  - Rel, Filter, and Limit Conﬁguration Menus66
- Table66
  - Figure66
  - Trigger Conﬁguration Menu68
- Table68
  - Sweep, Digits, Speed, and Data Store Conﬁguration Menus69
- Table69
  - Output and Display Conﬁguration Menus70
- Table70
  - Sweep, Digits, Speed, and Output Conﬁguration Menus71
- Connection Overview75
- 2 Wire Local Sensing80
  - Guarded Ohms Measurements (Ohms Guard)83
    - Sense and Guard Selections84
    - Guard Selection85
3 Basic Source-Measure Operation87
- Warning - Caution87
- Operation Overview88
- Source-Measure Capabilities88
- Table89
  - Table 3-2 Compliance Limits91
  - Compliance Commands92
- Table92
  - Setting the Compliance Limit92
  - Figure93
- Operation Considerations94
- Table103
  - Step 6: Turn Output off103
  - Basic Source-Measure Programming Example104
- Table104
  - Figure105
  - Measure Only Programming Example106
- Table106
4 Ohms Measurements110
- Figure111
- Table112
- Remote Commands for Basic Ohms Measurements121
- Table121
  - Remote Ohms Programming121
  - Auto Ohms Programming Example122
5 Pulse Mode Operation (Model 2430 Only)124
- Figure125
- Pulse Characteristics126
- Pulse Energy Limitations (10A Range)132
  - Pulse Mode Conﬁguration133
  - Disable/Enable Auto Zero134
- Basic Pulse Mode Operation135
  - Step 4: Select Source136
  - Step 7: Turn Output on137
- Table138
  - Basic Pulse-Measure Commands138
  - Remote Command Pulse-Measure Operation138
- Table139
  - Basic Pulse Programming Example139
6 Source-Measure Concepts144
- Table146
- Table 6-1 Compliance Limits146
- I-Source Operating Boundaries164
  - Voltage Compliance Boundaries167
- V-Source Operating Boundaries169
- Source I Measure I and Source V Measure V173
- Basic Circuit Conﬁgurations174
- Figure 6-15 Source I174
- Source V175
  - Figure 6-17 Measure Only (V or I)176
  - Guard177
- Ohms Guard178
- Figure 6-18 High-Impedance Measurements179
- Figure 6-19 In-Circuit Ohms Measurements180
- Guard Sense181
- Figure 6-20 In-Circuit Ohms Measurements Using Guard Sense182
- Data Flow183
8 Relative and Math204
- Table204
  - Rel Programming Example204
    - Remote Rel Programming204
  - Math Operations205
- Table 8-1 Rel Commands204
- Table209
  - Math Programming Example209
  - Commands for User-Deﬁned Math Functions210
- Voltage Coefﬁcient Programming Example209
- Table210
9 Data Store216
- Timestamp Accuracy216
- Table 9-1 Data Store Commands217
- Remote Command Data Store217
- Table 9-2 Data Store Example218
- Sweep Operation220
11 Triggering254
- Remote Trigger Commands255
- Front Panel Trigger Operation255
- Remote Trigger Operation264
- Remote Trigger Commands271
- Operation Model for Triggering Example280
  - Remote Trigger Example281
  - Table 11-2 Commands for Remote Triggering Example281
- Trigger Model for Remote Trigger Example282
- Pulse Mode Triggering (Model 2430)283
- Pulse Mode Trigger Model (Front Panel Operation)284
- Pulse Mode Trigger Model (Remote Operation)285
  - Idle286
  - Output Triggers287
- Limit Testing288
12 Limit Testing289
- Figure 12-1 Limit Tests289
- Types of Limits289
  - Pass/Fail Information290
  - Limit 2, Limit 3, and Limit 5-12 Tests291
- Operation Overview292
- Sorting Mode296
- Figure297
- Binning Systems298
- Figure 12-6 Handler Interface Connections298
- Commands to Control Digital I/O Port for Limit Testing311
- Digital I/O Port, Safety Interlock, and Output Conﬁguration314
13 Digital I/O Port, Safety Interlock, and Output Configuration315
- Figure 13-1 Digital I/O Port315
- Output-Off States321
  - Zero322
  - Output-Off States and Inductive Loads323
- Output Conﬁguration Commands324
- Remote Output Conﬁguration324
- Output Conﬁguration Programming Example325
- Remote Operations326
  - Differences: Remote Vs. Local Operation327
14 Remote Operations329
- Programming Syntax336
- RS-232 Connector Pinout345
  - RS-232 Interface Connector345
  - Table 14-3 PC Serial Port Pinout345
- Figure350
15 Status Structure350
- Common and SCPI Commands to Reset Registers and Clear Queues351
- Figure 15-2 16-Bit Status Register352
- Data Format Commands for Reading Status Registers353
  - Status Byte and Service Request (SRQ)354
    - Status Byte Register355
    - Service Request Enable Register356
- Status Byte and Service Request Enable Register Commands357
- Status Byte Programming Example357
  - Status Register Sets358
- Condition Register Commands363
- Event Register Commands363
  - Condition Registers363
- Event Enable Registers Commands364
- Program and Read Register Programming Example365
16 Common Commands368
- Command Summary369
- Table 16-1 IEEE-488.2 Common Commands and Queries369
- Command Reference370
- Table 16-2 *OPC Programming Example371
- SAV, *RCL Programming Example372
- TRG Programming Example373
- WAI — Wait-To-Continue374
17 SCPI Signal Oriented Measurement Commands376
- Figure377
- Signal Oriented Measurement Command Summary377
- Acquiring Readings378
  - Sense[1]]:Data[:Latest]?379
  - Measure[:<Function>]?380
18 SCPI Command Reference382
- Reference Tables383
- Calculate Command Summary384
- Display Command Summary389
- Format Command Summary390
- Output Command Summary390
- Table 18-5 Route Command Summary391
- Table 18-6 Sense Command Summary391
- Source Command Summary394
- Status Command Summary399
- System Command Summary400
- Table 18-10 Trace Command Summary402
- Table 18-11 Trigger Command Summary403
- Calculate Subsystems405
  - Program Examples407
    - Delete[:Selected] <Name>410
    - Deﬁne Math Expression411
  - Enable and Read Math Expression Result414
  - Display Subsystem427
    - Attributes?428
    - Deﬁne :TEXT Messages429
- Format Subsystem430
  - Figure 18-2 IEEE-754 Single Precision Data Format (32 Data Bits)431
  - Data Elements432
  - Source2 <Name>436
  - Byte Order437
- Output Subsystem438
  - Interlock Control439
- Route Subsystem440
- Sense1 Subsystem441
  - ON] <Function List>442
  - Count?443
  - Resistance:mode <Name>444
  - Select Measurement Range445
  - Upper] <N>446
  - Select Auto Range448
  - Soak Time480
- Status Subsystem485
  - Select Default Conditions486
  - Auto Range Change Mode498
    - Clear499
    - FEED <Name>500
- Trigger Subsystem501
  - Abort Source/Measure Cycle502
  - Introduction521
- Table B-1 Status and Error Messages522
- Eliminating Common SCPI Errors527
- Query UNTERMINATED"528
  - Introduction531
  - Fetch?532
  - Calculate[1]:Data?533
- IEEE-488 Bus Overview534
  - Introduction535
500 D IEEE-488 Bus Overview536
- Bus Description536
- Figure D-1 IEEE-488 Bus Conﬁguration537
- Bus Lines538
- Figure D-2 IEEE-488 Handshake Sequence539
- IEEE-488 Bus Command Summary540
  - Bus Commands540
    - Uniline Commands541
    - Addressed Multiline Commands542
- Common Commands543
- Table D-2 Hexadecimal and Decimal Command Codes543
- Figure D-3 Command Codes544
- Table D-3 Typical Addressed Multiline Command Sequence545
- Table D-4 Typical Addressed Common Command Sequence545
  - Typical Command Sequences545
- Table D-5 IEEE Command Groups546
- Sourcemeter Interface Function Codes547
- Introduction551
- Table E-1 IEEE-488 Documentation Requirements552
- IEEE-488 and SCPI Conformance Information553
  - Table E-2 Coupled Commands553
F Contact Check Function554
100 C Data Flow555
- Introduction555
  - Block Diagram556
  - Operation557
- Table F-1 Recommended Contact Resistance Threshold Values558
- Contact Check Menu Selections564
  - Auto Clear Off, Immediate Binning564
  - Using Contact Check565
    - Using Event Detection with Contact Check566
- Contact Check Remote Commands567
- Contact Check Programming Example569
- Contact Check Command Reference570
  - Fail?571
  - Conﬁgure and Control Contact Check Event Detection572
- Contact Check Defaults573
- TOUT <Nrf>573
GPIB 488.1 Protocol574
- Introduction575
- Protocol Differences576
  - NRFD Hold-Off577
  - Trigger-On-Talk578
- Table G-1 SCPI/488.1 Reading Speed Comparisons for Measure-Only Sweep Operation (Rdgs/Sec)579
- Table G-2 SCPI/488.1 Reading Speed Comparisons for Source-Measure Sweep Operation (Rdgs/Sec)579
- Table G-3 SCPI/488.1 Reading Speed Comparisons for Source-Measure-Limit Test Sweep Operation (Rdgs/Sec)580
- Table G-4 SCPI/488.1 Reading Speed Comparisons for Source-Memory Sweep Operation (Rdgs/Sec)580
- SCPI/488.1 Reading Speed Comparisons for Measure-Only Single-Shot Operation (Rdgs/Sec581
- SCPI/488.1 Reading Speed Comparisons for Source-Measure Single-Shot Operation (Rdgs/Sec581
- SCPI/488.1 Reading Speed Comparisons for Source-Measure-Limit Test Single-Shot Operation (Rdgs/Sec581

Brand	Keithley
Model	SourceMeter 2420
Category	Measuring Instruments
Language	English

Keithley SourceMeter 2420 User Manual

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