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2635
Keithley 2635 Reference Manual
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2600S-901-01 Rev. C / January 2008
Return to
Section T
opics
10-9
Series 2600 System SourceMeter® Instruments Refe
rence Manual
Section 10: Digital I/O a
nd Triggering
Figure 10-4
Using Model 261
1/2612
/2635/2636
Inter
lock
T
o output stage
10k
W
Rear panel
Chassis ground
Coil resistance
145
W
+/- 10%
-220V supply
+220V supply
INTERLOCK pin
(on DIGIT
AL I/O
connector)
Read by firmware
Pin 24
Closing
Switch
Enables
200V
Operation
+5V
Pin 23
232
234
Table of Contents
Table of Contents
7
Safety Precautions
5
List of Figures
17
Table of Contents
18
List of Tables
21
Section 1 Getting Started
25
1 Getting Started
25
Introduction
26
Capabilities and Features
26
Organization of Manual Sections
27
General Information
27
Contact Information
27
Safety Symbols and Terms
27
Unpacking and Inspection
27
Warranty Information
27
Options and Accessories
28
User's and Reference Manuals
29
Front and Rear Panel Familiarization
30
Front Panel Summaries
30
Rear Panel Summaries
33
Cooling Vents
37
Power-Up
38
Line Power Connection
38
Power-Up Sequence
39
Beeper
39
Display Modes
40
Editing Controls
41
Source and Compliance Editing
41
Menu Navigation
42
Menu Types
43
Table 1-3 Main Menu
43
Interface Selection
44
Table 1-4 Configuration Menus
44
To Select the GPIB Interface
45
To Select the RS-232 Interface
45
Error and Status Messages
45
Default Settings
45
Front Panel Setups
45
Remote Operation Setups
46
Table 1-5 Default Settings
47
Remote Programming
48
Requesting Readings
48
Requesting Command Settings
48
Section 2 Tsp Programming
49
Introduction
51
Test Script Processor (TSP)
51
Run-Time Environment
51
Queries
52
Scripts
52
Named Scripts
52
Functions
53
Scripts that Create Functions
53
2 TSP Programming
51
Programming Overview
54
What Is a Chunk
54
What Is a Script
54
Run-Time Environment
55
Non-Volatile Memory
55
TSP Programming Levels
56
Programming Model for Scripts
56
Installing the Test Script Builder Software
57
System Connections
57
Gpib
57
Rs-232
58
Using Test Script Builder
59
Programming Interaction
60
Project Navigator
60
Script Editor
60
Starting Test Script Builder
60
Instrument Console
61
Opening Communications
61
Creating and Modifying a Script
63
Script Launch Configuration
67
Launching a Script
70
Running a TSP File
71
Instrument Console
72
File Management Tasks
78
Using the Expanded System
81
Display User-Defined Messages
82
Creating a User Script
84
Saving a User Script
85
Running a User Script
86
Modifying a User Script
88
Factory Scripts
90
Differences: Remote Versus Local State
91
Memory Considerations for the Runtime Environment
92
Test Script Language (TSL) Reference
93
Operators
94
Tables/Arrays
95
Precedence
96
Concatenation
97
Branching
98
Loop Control
99
Standard Libraries
101
Section 3 Dut Test Connections
105
DUT Test Connections
105
Input/Output Connectors
106
Input/Output lo and Chassis Ground
107
Sensing Methods
109
2 Wire Local Sensing
110
4 Wire Remote Sensing
111
Sense Mode Selection
112
Table 3-1 Selecting the Sense Mode from the Front Panel
112
Table 3-2 Commands to Select Sense Mode
112
Contact Check Connections
113
Multiple SMU Connections
114
Guarding and Shielding
116
Guarding
116
Noise Shield
117
Figure 3-16
120
Safety Shield
120
Figure 3-18
121
Using Shielding and Guarding Together
122
Test Fixture
123
Floating a SMU
124
Figure 3-23 Floating the Series 2600
125
Output-Off States
127
Section 4 Basic Operation
129
Basic Operation
129
Figure 4-4 Contact Check Measurements
129
Table 4-1 Source-Measure Capabilities
129
Overview
130
Operation Overview
130
Compliance Limit
131
Setting the Compliance Limit
132
Basic Circuit Configurations
133
Table 4-4 Auto Zero Settings
134
Operation Considerations
134
Warm-Up
134
Auto Zero
134
NPLC Caching
134
Basic Source-Measure Procedure
136
Front Panel Source-Measure Procedure
136
Remote Source-Measure Procedure
137
Table 4-6 Basic Source-Measure Commands
138
Measure Only
139
Sink Operation
140
Ohms Measurements
140
Ohms Calculations
140
Ohms Ranging
140
Basic Ohms Measurement Procedure
140
Ohms Sensing
141
Sense Selection
142
Remote Ohms Programming
143
Power Measurements
144
Power Calculations
144
Basic Power Measurement Procedure
144
Remote Power Programming
144
Overview
145
Contact Check Measurements
145
Contact Check Commands
146
Contact Check Programming Example
147
Section 5 Sweep Operation
149
Default Chapter
149
Sweep Operation
149
Table 5-2 Staircase Sweep Functions
149
Table 5-3 Pulse Sweep Functions
149
Overview
150
Section Overview
150
Sweep Overview
150
Sweep Characteristics
151
Linear Staircase Sweeps
151
Logarithmic Staircase Sweeps
152
Figure 5-3 Logarithmic Staircase Sweep (1V to 10V, Five Steps)
153
Table 5-1 Logarithmic Sweep Points
153
Figure 5-4 Pulse Sweep Example
154
Pulse Sweeps
154
Sweep Measurement Storage
155
Sweep Functions
155
Staircase Sweep Functions
156
Figure 5-2 Linear Staircase Sweep
157
Table 5-4 Custom Sweep Functions
157
Table 5-5 Sweep Example Parameters
157
Custom Sweep Functions
157
Running Sweeps
157
Front Panel
157
Section 6 Range, Digits, Speed, Rel, and Filters
161
Range, Digits, Speed, Rel, and Filters
161
Range
162
Available Ranges
162
Maximum Source Values and Readings
163
Ranging Limitations
163
Manual Ranging
163
Auto Ranging
163
Low Range Limits
163
Range Considerations
164
Range Programming
164
Table 6-2 Range Commands
165
Table 6-3 Digits Commands
166
Overview
162
Digits
166
Setting Display Resolution
166
Remote Digits Programming
166
Speed
166
Table 6-4 Speed Command
167
Remote Speed Programming
167
Setting Speed
167
Rel
168
Front Panel Rel
168
Table 6-5 Rel Commands
169
Remote Rel Programming
169
Filters
170
Filter Types
170
Response Time Considerations
170
Front Panel Filter Control
170
Response Time
171
Table 6-6 Filter Commands
173
Remote Filter Programming
173
Section 7 Buffer (Data Store)
175
Buffer (Data Store)
175
Overview
176
Front Panel Data Store
176
Buffer Configuration
176
Storing Readings
177
Recalling Readings
177
Table 7-1 Data Store Commands
178
Data Store Overview
176
Remote Data Store
178
Data Store Commands
178
Reading Buffers
179
Table 7-2 Buffer Storage Control Attributes
180
Table 7-3 Buffer Read-Only Attributes
180
Table 7-4 Buffer Control Programming Examples
180
Table 7-5 Buffer Read-Only Attribute Programming Examples
180
Table 7-6 Recall Attributes
181
Time and Date Values
181
Table 7-7 Buffer Status Bits
182
Buffer Status
182
Dynamically Allocated Buffers
182
Buffer Programming Examples
183
Section 8 Source-Measure Concepts
187
Source-Measure Concepts
187
Compliance Limit
188
Maximum Compliance
188
Overview
188
Compliance Principles
189
Sweep Waveforms
189
Staircase Sweeps
189
Figure 8-2 Pulse Sweep Example
190
Overheating Protection
190
Power Equations to Avoid Overheating
190
Table 8-2 Model 2601/2602 Maximum Duty Cycle Equation Constants
192
Table 8-3 Model 2611/2612/2635/2636 Maximum Duty Cycle Equation Constants
192
Pulse Sweeps
190
Operating Boundaries
193
Source or Sink
193
Continuous Power Operating Boundaries
194
I-Source Operating Boundaries
195
V-Source Operating Boundaries
199
Figure 8-11 Source I Configuration
202
Source I Measure I, Source V Measure V
202
Basic Circuit Configurations
202
Figure 8-12 Source V Configuration
203
Measure Only (V or I)
203
Source V
203
Contact Check
204
Guard Overview
205
Guard Connections
206
Figure 8-16 Pulse Period
208
Figure 8-17 Pulse Rise and Fall Times
208
Pulse Concepts
208
Pulse Period
208
Pulse Rise and Fall Times
208
Pulse Duty Cycle
209
Table 8-5 Current Source Gain-Bandwidth
210
Reduction in Gain-Bandwidth
210
Section 9 System Expansion (Tsp-Link)
211
Default Chapter
211
In this Section:
211
Master and Slaves
212
System Configurations
212
Overview
212
Figure 9-1 TSP-Link Connections
213
Assigning Node Numbers
213
Initialization
213
Resetting the TSP-Link
214
Using the Expanded System
215
Accessing Nodes
215
System Behavior
215
Triggering with TSP-Link
216
TSP Advanced Features
216
Table 9-2 TSP-Link Network Group Functions
219
Using Groups to Manage Nodes on the TSP-Link Network
219
Running Parallel Test Scripts
220
Using the Data Queue for Real-Time Communication
221
Copying Test Scripts Across the TSP-Link Network
222
Removing Stale Values from the Reading Buffer
222
Section 10 Digital I\/O and Triggering
225
Digital I/O and Triggering
225
Figure 10-1 Digital I/O Port
226
Overview
226
Digital I/O Configuration
227
Controlling Digital I/O Lines
228
Output Enable (Models 2601/2602)
231
Front Panel Control of Output Enable
232
TSP-Link Synchronization Lines
234
Connecting to TSP-Link
234
Remote TSP-Link Synchronization Line Commands
234
Triggering
236
Triggering Types
236
Measurement Triggering
236
Front Panel Triggering
237
Remote Triggering
238
Hardware Trigger Modes
239
Understanding Synchronous Triggering Modes
244
Section 11 Communications Interfaces
249
Communications Interfaces
249
GPIB Operation
250
GPIB Standards
250
GPIB Connections
250
Overview
250
Figure 11-1 IEEE-488 Connector
251
Primary Address
252
Terminator
253
Selecting an Interface
250
General Bus Commands
254
REN (Remote Enable)
254
IFC (Interface Clear)
254
LLO (Local Lockout)
254
GTL (Go to Local)
254
DCL (Device Clear)
254
SDC (Selective Device Clear)
255
GET (Group Execute Trigger)
255
SPE, SPD (Serial Polling)
255
Front Panel GPIB Operation
255
Error and Status Messages
255
GPIB Status Indicators
255
LOCAL Key
256
RS-232 Interface Operation
256
Setting RS-232 Interface Parameters
256
Sending and Receiving Data
257
Baud Rate
257
Data Bits and Parity
258
Flow Control (Signal Handshaking)
258
RS-232 Connections
259
Section 12 Instrument Control Library
261
Instrument Control Library
261
Command Programming Notes
262
Functions and Attributes
263
TSP-Link Nodes
264
Logical Instruments
265
Reading Buffers
265
Time and Date Values
267
ICL Functions and Attributes
268
Data Queue Functions
275
Delay Function
277
Display Functions and Attributes
283
Errorqueue Functions and Attribute
295
Exit Function
296
Gpib Attribute
299
Makegetter Functions
302
Printbuffer and Printnumber Functions
303
Reset Function
305
Setup Functions and Attribute
308
Status Function and Attributes
336
Timer Functions
368
Trigger Functions
369
Tsplink Function and Attributes
370
Userstring Functions
376
Waitcomplete Function
378
Factory Scripts
379
Introduction
380
Kipulse
390
Advanced Features for Models 2635 and 2636
391
Additional Hardware Triggering Parameters
392
Flash Firmware Upgrade
413
Section 14 Display Operations
415
Display Operations
415
Display Functions and Attributes
416
Display Features
416
Display Screen
416
Measurement Functions
416
Display Resolution
416
Measurement Functions
417
Display Messages
418
Displaying Text Messages
419
Input Prompting
421
Parameter Value Prompting
422
Annunciators
423
LOCAL Lockout
424
Load Test Menu
424
Saving a User Script
425
Adding USER TESTS Menu Entries
425
Deleting USER TESTS Menu Entries
426
Running a Test from the Front Panel
426
Display Triggering
426
Key-Press Codes
427
Section 15 Performance Verification
431
Performance Verification
431
Verification Test Requirements
432
Environmental Conditions
432
Warm-Up Period
432
Introduction
432
Line Power
433
Recommended Test Equipment
433
Verification Limits
433
A Specifications
433
Restoring Factory Defaults
434
Performing the Verification Test Procedures
435
Test Summary
435
Test Considerations
435
Setting the Source Range and Output Value
435
Setting the Measurement Range
436
Output Voltage Accuracy
436
Voltage Measurement Accuracy
438
Output Current Accuracy
439
Model 2635/2636 Output Current Accuracy 1Na to 100Na Ranges
441
Current Measurement Accuracy
444
Series 2600 Current Measurement Accuracy 100Na and Higher
444
Model 2635/2636 Current Measurement Accuracy 100Pa to 100Na Ranges
445
Introduction
447
Error Summary
448
Calibration Cycle
449
Calibration Errors
451
Calibration Commands
453
Calibration Procedure
454
Routine Maintenance
469
Introduction
470
Front Panel Tests
471
Reading Errors
499
Common Commands
505
Script Command Equivalents
506
Command Reference
507
D Status Model
509
Overview
510
Status Function Summary
516
Programming and Reading Registers
517
Reading Registers
518
Service Request Enable Register
520
Enable and Transition Registers
521
Status Register Sets
523
Standard Event Register
524
Operation Event Registers
526
Measurement Event Registers
532
Register Programming Example
535
Error Queue
536
Introduction
539
Test System Used
540
Single Measurement Rates
541
Digital I/O Handshaking
542
Measure to GPIB
543
Measure to GPIB
544
S-901-01 Rev. C / January
545
Rate
555
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Keithley 2635 Specifications
General
Brand
Keithley
Model
2635
Category
Measuring Instruments
Language
English
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