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2600AS-901-01 Rev. B / September 2008 Return to Section Topics 19-227

Series 2600A System SourceMeter® Instruments Reference Manual Section 19: Remote Commands

tspnet.readavailable

Function Read the number of bytes waiting to be read.

TSP-Link

accessibility

This function can be accessed from a remote TSP-Link node.

Usage num_bytes = tspnet.readavailable(connection_id)

connection_id Integer value used as a handle for other tspnet

commands.

num_bytes The number of bytes available.

Remarks • This command checks to see if any data is available from the remote instrument. No data is

read. It is intended to allow TSP

scripts to continue to run without waiting on a remote

command to finish.

• Errors:

Invalid Specified Connection

Read Failed

Example x = tspnet.readavailable(myconnection)

Default Chapter7
- Default Chapter7
  - Safety Precautions7
  - Table of Contents9
- Topic Page10
1 Getting Started27
- Introduction28
  - Capabilities and Features28
  - Organization of Manual Sections29
- General Information29
- Front and Rear Panel Familiarization32
- Cooling Vents39
- Power-Up40
- Display Modes42
- Editing Controls43
- Interface Configuration47
- USB Storage Overview47
  - Connecting the USB Flash Drive47
- Using the File System48
  - File System Navigation48
- Error and Status Messages48
2 DUT Test Connections49
- Input/Output Connectors50
- Figure 2-1 2602A/2612A Input/Output Connectors51
- Input/Output lo and Chassis Ground52
- Figure 2-4 Model 2636A Input/Output and Chassis Ground53
- Sensing Methods54
- Contact Check Connections57
- Multiple SMU Connections58
- Figure 2-14 Model 2636A, Two Smus Connected to a 3-Terminal Device (Local Sensing, Floating)59
- Guarding and Shielding60
- Test Fixture68
- Floating an SMU68
- Floating the Series 2600A69
- Model 2601A/2602A-1 SMU Connections70
- Output-Off States71
  - Selecting the Output-Off State71
  - Table 3-1 Source-Measure Capabilities73
3 Basic Operation74
- Overview74
- Operation Overview74
- Operation Considerations77
- Basic Source-Measure Procedure79
- Triggering in Local Mode82
- Figure82
- Configuring Trigger Attributes in Local Mode83
- Figure83
- Measure Only84
- Sink Operation and Interface85
- Ohms Measurements85
- Power Measurements89
- Contact Check Measurements90
- User Setup92
4 Source-Measure Concepts96
- Overview96
- Compliance Limit96
  - Maximum Compliance96
  - Compliance Principles96
- Overheating Protection97
- Operating Boundaries100
- Basic Circuit Configurations109
- Guard112
  - Guard Overview112
  - Guard Connections113
- Settling Time Considerations114
5 High-Capacitance Mode117
- Overview118
- Understanding High-Capacitance Mode118
  - Understanding Source Settling Times118
  - Adjusting the Voltage Source119
- Enabling High-Capacitance Mode120
6 Range, Digits, Speed, Rel, and Filters123
- Overview124
- Range124
- Digits128
  - Setting Display Resolution128
  - Remote Digits Programming128
- Speed128
- Rel130
  - Front Panel Rel130
  - Remote Rel Programming131
- Filters131
7 Reading Buffers135
- Table 7-2 Reading Buffer Commands135
- Reading Buffer Overview136
- Working with Reading Buffers in the Local State136
- Working with Reading Buffers in the Remote State139
8 Digital I/O147
- Digital I/O Port148
- Output Enable (Models 2601A/2602A)151
- Interlock (Models 2612A/2612A/2635A/2636A)153
  - Overview153
  - Operation153
- TSP-Link Synchronization Lines154
9 Sweep Operation157
- Overview158
- Sweep Characteristics159
- Configuring and Running Sweeps166
- Sweeping Using Factory Scripts168
10 Triggering171
- Remote Triggering Overview173
- Using the Remote Trigger Model173
- Using the Remote Trigger Model174
- SMU Event Detectors176
- Using Trigger Events to Start Actions on Trigger Objects178
  - Action Overruns179
- Digital I/O Port and TSP-Link Synchronization Lines179
- Timers181
- Event Blenders187
- LAN Triggering Overview188
- Logging LAN Trigger Events in the Event Log190
  - Accessing the Event Log from the Command Interface192
- Command Interface Triggering192
- Manual Triggering193
- Interactive Triggering193
- Hardware Trigger Modes for Digital I/O and TSP-Link Synchronization Lines197
- Understanding Synchronous Triggering Modes202
11 Display Operations209
- Display Functions and Attributes210
- Display Features210
- Display Messages212
- Input Prompting215
  - Menu215
  - Parameter Value Prompting216
- Indicators217
- Load Test Menu218
- Key-Press Codes220
12 TSP Fundamentals and Script Management223
- Introduction224
- Programming Overview227
- User Scripts230
13 Test Script Builder (TSB)241
- Installing the Test Script Builder Software242
- System Connections242
- Using Test Script Builder242
14 System Expansion (TSP-Link)267
- Overview267
- Connections268
- Overview268
  - Master and Slaves268
  - System Configurations268
- Initialization269
  - Assigning Node Numbers269
  - Resetting the TSP-Link269
- Using the Expanded System270
- TSP Advanced Features271
15 Communications Interfaces279
- Overview280
- Selecting an Interface280
- Output Queue280
- GPIB Operation281
- General Bus Commands283
- Front Panel GPIB Operation285
- RS-232 Interface Operation286
- Ethernet Communications289
16 LAN Concepts and Settings293
- Overview294
- Establishing a Point-To-Point Connection294
  - LAN Troubleshooting Suggestions299
- Connecting to the LAN300
- Understanding LAN Speeds302
  - Configuring the LAN Speed302
- Duplex Mode303
  - Configuring the Duplex Mode303
- Configuring the Network Settings303
  - Config/Fault303
- Viewing LAN Status Messages303
- Table 16-1 Config/Fault Messages303
- Viewing the Network Settings304
- Selecting a Remote Command Interface305
- Configuring a Telnet Connection305
17 Web Interface and TSB Embedded309
- Table 17-1 Web Browser Requirements309
- Working with the Web Interface310
- Password Management314
- Working with TSB Embedded317
  - Using the Instrument Control Library (ICL)317
18 TSP-Nettm319
- Overview320
- TSP-Net Capabilities320
- Using TSP-Net with any Ethernet-Enabled Device320
  - In this Section320
  - Example Script321
- Using TSP-Net Vs. TSP-Link for Communication with TSP-Enabled Devices321
19 Remote Commands323
- Test Script Language (TSL)325
  - Introduction325
  - Reserved Words325
- Variables and Types325
- Operators326
- Functions326
- Tables/Arrays327
- Precedence328
- Logical Operators328
- Concatenation329
- Branching329
- Loop Control330
- Command Programming Notes331
- Standard Libraries337
  - String Library Functions338
  - Math Library Functions339
- File I/O340
- Instrument Control Library341
- Status472
- Standard Libraries558
  - String Library Functions559
  - Math Library Functions559
- Factory Scripts560
20 Calibration597
- Introduction597
- Environmental Conditions597
- Calibration Considerations597
- Introduction598
  - Calibration Procedure605
- Routine Maintenance619
- Performance Verification625
Appendix Topic641
A Error and Status Messages641
- Error Summary641
- Error Effects on Scripts641
- Reading Errors641
- Common Commands647
  - Command Summary647
  - Command Reference647
- Status Model651
- Display Character Codes677
  - Display Character Dot Patterns677
- Index685

Brand	Keithley
Model	2600a series
Category	Measuring Instruments
Language	English

Keithley 2600a series User Manual

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