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APPLICATION PROGRAM EXAMPLES A - 1
APPENDIX A
APPLICATION PROGRAM EXAMPLES
The program examples are written for the CombiScopes with the IEEE option
installed. No other instrument is required to execute these examples. For system
and programming environment requirements to execute these examples, refer to
section 2.1 "Preparations for SCPI programming".
A.1 Measuring Signal Characteristics
A.1.1 Making automatic measurements
A.1.2 Making programmed measurements
A.1.3 Reading measurement values
A.2 Acquiring Waveform Traces
A.3 Saving/Recalling Instrument Setups
A.3.1 Save/recall settings to/from internal memory
A.3.2 Save/recall settings to/from computer disk memory
A.4 Making a Hardcopy of the Screen
A.5 Pass/Fail Testing
A.5.1 Saving a pass/fail test setup
A.5.2 Restoring a pass/fail test setup
A.5.3 Running a pass/fail test
Note: All APPLICATION PROGRAM EXAMPLES in this chapter are supplied
on floppy.
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The following error handling routine is used:
’ ***************************************************
’ Subroutine reading all errors from the error queue.
’ ***************************************************
SUB errorcheck
er$ = SPACE$(1)
WHILE LEFT$(er$, 1) <> "0"
CMD$ = "SYSTem:ERRor?"
CALL Send(0, 8, CMD$, 1) ’
Sends error query
er$ = SPACE$(60)
CALL Receive(0, 8, er$, 256) ’
Reads error string
PRINT "error = "; er$ ’
Displays error string
WEND
END SUB
•
Error reporting is invoked as follows:
CALL errorcheck
•
In the command strings the "short form" commands are specified in capitals.
The additional characters in lower case complete the "long form commands.