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Keysight P9241/42/43A Oscilloscopes SCPI Programmer's Guide
38
Programming Examples
Dim dblResult As Double
err = viVPrintf(vi, query + vbLf, 0)
If (err <> VI_SUCCESS) Then HandleVISAError vi
err = viVScanf(vi, "%lf" + vbLf, VarPtr(dblResult))
If (err <> VI_SUCCESS) Then HandleVISAError vi
DoQueryNumber = dblResult
CheckInstrumentErrors
End Function
Private Function DoQueryNumbers(query As String) As Long
Dim dblResult As Double
' Send query.
err = viVPrintf(vi, query + vbLf, 0)
If (err <> VI_SUCCESS) Then HandleVISAError vi
' Set up paramsArray for multiple parameter query returning array.
paramsArray(0) = VarPtr(retCount)
paramsArray(1) = VarPtr(dblArray(0))
' Set retCount to max number of elements array can hold.
retCount = DblArraySize
' Read numbers.
err = viVScanf(vi, "%,#lf" + vbLf, paramsArray(0))
If (err <> VI_SUCCESS) Then HandleVISAError vi
' retCount is now actual number of values returned by query.
DoQueryNumbers = retCount
CheckInstrumentErrors
End Function
Private Function DoQueryIEEEBlock_Bytes(query As String) As Long
' Send query.
err = viVPrintf(vi, query + vbLf, 0)
If (err <> VI_SUCCESS) Then HandleVISAError vi
' Set up paramsArray for multiple parameter query returning array.
paramsArray(0) = VarPtr(retCount)
paramsArray(1) = VarPtr(byteArray(0))
' Set retCount to max number of elements array can hold.
retCount = ByteArraySize
' Get unsigned integer bytes.
err = viVScanf(vi, "%#b" + vbLf, paramsArray(0))
If (err <> VI_SUCCESS) Then HandleVISAError vi
Содержание P9241
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Страница 36: ...36 Keysight P9241 42 43A Oscilloscopes SCPI Programmer s Guide 1 What s New...
Страница 41: ...Setting Up 2 Keysight P9241 42 43A Oscilloscopes SCPI Programmer s Guide 41...
Страница 44: ...44 Keysight P9241 42 43A Oscilloscopes SCPI Programmer s Guide 2 Setting Up...
Страница 222: ...222 Keysight P9241 42 43A Oscilloscopes SCPI Programmer s Guide 7 Root Commands...
Страница 244: ...244 Keysight P9241 42 43A Oscilloscopes SCPI Programmer s Guide 8 ACQuire Commands...
Страница 256: ...256 Keysight P9241 42 43A Oscilloscopes SCPI Programmer s Guide 9 CALibrate Commands...
Страница 278: ...278 Keysight P9241 42 43A Oscilloscopes SCPI Programmer s Guide 10 CHANnel n Commands...
Страница 328: ...328 Keysight P9241 42 43A Oscilloscopes SCPI Programmer s Guide 15 EXTernal Trigger Commands...
Страница 386: ...386 Keysight P9241 42 43A Oscilloscopes SCPI Programmer s Guide 17 FUNCtion m Commands...
Страница 390: ...390 Keysight P9241 42 43A Oscilloscopes SCPI Programmer s Guide 18 HCOPY Commands...
Страница 416: ...416 Keysight P9241 42 43A Oscilloscopes SCPI Programmer s Guide 20 MARKer Commands...
Страница 498: ...498 Keysight P9241 42 43A Oscilloscopes SCPI Programmer s Guide 21 MEASure Commands...
Страница 532: ...532 Keysight P9241 42 43A Oscilloscopes SCPI Programmer s Guide 22 MTESt Commands...
Страница 572: ...572 Keysight P9241 42 43A Oscilloscopes SCPI Programmer s Guide 24 SAVE Commands...
Страница 596: ...596 Keysight P9241 42 43A Oscilloscopes SCPI Programmer s Guide 25 SBUS n Commands SBUS n A429 SOURce on page 588...
Страница 900: ...900 Keysight P9241 42 43A Oscilloscopes SCPI Programmer s Guide 28 TIMebase Commands...
Страница 1080: ...1080 Keysight P9241 42 43A Oscilloscopes SCPI Programmer s Guide 31 WGEN w Commands...
Страница 1142: ...1142 Keysight P9241 42 43A Oscilloscopes SCPI Programmer s Guide 34 Error Messages...
Страница 1204: ...1204 Keysight P9241 42 43A Oscilloscopes SCPI Programmer s Guide 37 More About Oscilloscope Commands...
Страница 1344: ...1344 Keysight P9241 42 43A Oscilloscopes SCPI Programmer s Guide Index...