Keysight P9241, Scpi Programmer'S Manual

Page: 1303 / 1344

Programming Examples
38
Keysight P9241/42/43A Oscilloscopes SCPI Programmer's Guide 1303
MsgBox "*** Error : " + Error, vbExclamation
End
End Sub
'
' Capture the waveform.
' -------------------------------------------------------------------
Private Sub Capture()
On Error GoTo ErrorHandler
' Use auto-scale to automatically configure oscilloscope.
' -----------------------------------------------------------------
DoCommand ":AUToscale"
' Set trigger mode (EDGE, PULSe, PATTern, etc., and input source.
DoCommand ":TRIGger:MODE EDGE"
Debug.Print "Trigger mode: " + _
DoQueryString(":TRIGger:MODE?")
' Set EDGE trigger parameters.
DoCommand ":TRIGger:EDGE:SOURce CHANnel1"
Debug.Print "Trigger edge source: " + _
DoQueryString(":TRIGger:EDGE:SOURce?")
DoCommand ":TRIGger:EDGE:LEVel 1.5"
Debug.Print "Trigger edge level: " + _
DoQueryString(":TRIGger:EDGE:LEVel?")
DoCommand ":TRIGger:EDGE:SLOPe POSitive"
Debug.Print "Trigger edge slope: " + _
DoQueryString(":TRIGger:EDGE:SLOPe?")
' Save oscilloscope configuration.
' -----------------------------------------------------------------
Dim lngSetupStringSize As Long
lngSetupStringSize = DoQueryIEEEBlock_Bytes(":SYSTem:SETup?")
Debug.Print "Setup bytes saved: " + CStr(lngSetupStringSize)
' Output setup string to a file:
Dim strPath As String
strPath = "c:\scope\config\setup.dat"
If Len(Dir(strPath)) Then
Kill strPath ' Remove file if it exists.
End If
' Open file for output.
Dim hFile As Long
hFile = FreeFile
Open strPath For Binary Access Write Lock Write As hFile
Dim lngI As Long
For lngI = 0 To lngSetupStringSize - 1
Put hFile, , byteArray(lngI) ' Write data.
Next lngI