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Keysight P9241/42/43A Oscilloscopes SCPI Programmer's Guide
38
Programming Examples
End Function
Private Function DoQueryIEEEBlock_Bytes(query As String) As Long
On Error GoTo ErrorHandler
' Send query.
Call ivprintf(id, query + vbLf)
' Read definite-length block bytes.
Sleep 2000
' Delay before reading data.
Call ifread(id, byteArray(), ByteArraySize, vbNull, retCount)
' Get number of block length digits.
Dim intLengthDigits As Integer
intLengthDigits = CInt(Chr(byteArray(1)))
' Get block length from those digits.
Dim strBlockLength As String
strBlockLength = ""
Dim i As Integer
For i = 2 To intLength 1
strBlockLength = strBlock Chr(byteArray(i))
Next
' Return number of bytes in block plus header.
DoQueryIEEEBlock_Bytes = CLng(strBlockLength) + intLength 2
CheckInstrumentErrors
Exit Function
ErrorHandler:
MsgBox "*** Error : " + Error, vbExclamation
End
End Function
Private Sub CheckInstrumentErrors()
On Error GoTo ErrorHandler
Dim strErrVal As String * 200
Dim strOut As String
Call ivprintf(id, ":SYSTem:ERRor?" + vbLf)
' Query any errors data.
Call ivscanf(id, "%200t", strErrVal)
' Read: Errnum,"Error String".
While Val(strErrVal) <> 0
' End if find: +0,"No Error".
strOut = "INST Error: " + strErrVal
Call ivprintf(id, ":SYSTem:ERRor?" + vbLf)
' Request error message
.
Call ivscanf(id, "%200t", strErrVal)
' Read error message.
Wend
If Not strOut = "" Then
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...