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© National Instruments Corporation vii NI-488.2 User Manual for Windows
Chapter 4
Debugging Your Application
NI Spy............................................................................................................................4-1
Global Status Variables .................................................................................................4-2
Existing Applications.....................................................................................................4-3
NI-488.2 Error Codes ....................................................................................................4-3
Configuration Errors......................................................................................................4-3
Timing Errors.................................................................................................................4-4
Communication Errors...................................................................................................4-5
Repeat Addressing...........................................................................................4-5
Termination Method........................................................................................4-5
Other Errors ...................................................................................................................4-5
Chapter 5
NI Spy Utility
Overview........................................................................................................................5-1
Starting NI Spy ..............................................................................................................5-1
Using the NI Spy Online Help.......................................................................................5-2
Locating Errors with NI Spy..........................................................................................5-2
Viewing Properties for Recorded Calls .........................................................................5-2
Exiting NI Spy ...............................................................................................................5-3
Performance Considerations..........................................................................................5-3
Chapter 6
Interactive Control Utility
Overview........................................................................................................................6-1
Getting Started with Interactive Control........................................................................6-1
Interactive Control Syntax.............................................................................................6-4
Number Syntax................................................................................................6-4
String Syntax...................................................................................................6-4
Address Syntax................................................................................................6-5
Interactive Control Commands......................................................................................6-5
Status Word....................................................................................................................6-10
Error Information...........................................................................................................6-10
Count Information..........................................................................................................6-11