:WAVeform Commands
32
Keysight InfiniiVision M9241/42/43A PXIe Oscilloscopes SCPI Programmer's Guide
1193
myScope.WriteString ":WAVEFORM:PREAMBLE?"
' Query for the preamble.
Preamble() = myScope.ReadList
' Read preamble information.
intFormat = Preamble(0)
intType = Preamble(1)
lngPoints = Preamble(2)
lngCount = Preamble(3)
dblXIncrement = Preamble(4)
dblXOrigin = Preamble(5)
lngXReference = Preamble(6)
sngYIncrement = Preamble(7)
sngYOrigin = Preamble(8)
lngYReference = Preamble(9)
strOutput = ""
'strOutput = str "Format = " + CStr(intFormat) + vbCrLf
'strOutput = str "Type = " + CStr(intType) + vbCrLf
'strOutput = str "Points = " + CStr(lngPoints) + vbCrLf
'strOutput = str "Count = " + CStr(lngCount) + vbCrLf
'strOutput = str "X increment = " + _
'
FormatNumber(dblXIncrement * 1000000) + " us" + vbCrLf
'strOutput = str "X origin = " + _
'
FormatNumber(dblXOrigin * 1000000) + " us" + vbCrLf
'strOutput = str "X reference = " + _
'
CStr(lngXReference) + vbCrLf
'strOutput = str "Y increment = " + _
'
FormatNumber(sngYIncrement * 1000) + " mV" + vbCrLf
'strOutput = str "Y origin = " + _
'
FormatNumber(sngYOrigin) + " V" + vbCrLf
'strOutput = str "Y reference = " + _
'
CStr(lngYReference) + vbCrLf
strOutput = str "Volts/Div = " + _
FormatNumber(lngVSteps * sngYIncrement / 8) + _
" V" + vbCrLf
strOutput = str "Offset = " + _
FormatNumber((lngVSteps / 2 - lngYReference) * _
sngYInc sngYOrigin) + " V" + vbCrLf
strOutput = str "Sec/Div = " + _
FormatNumber(lngPoints * dblXIncrement / 10 * _
1000000) + " us" + vbCrLf
strOutput = str "Delay = " + _
FormatNumber(((lngPoints / 2 - lngXReference) * _
dblXInc dblXOrigin) * 1000000) + " us" + vbCrLf
' QUERY_WAVE_DATA - Outputs waveform data that is stored in a buffer.
' Query the oscilloscope for the waveform data.
myScope.WriteString ":WAV:DATA?"
' READ_WAVE_DATA - The wave data consists of two parts: the header,
' and the actual waveform data followed by a new line (NL) character.
' The query data has the following format:
'
'
<header><waveform_data><NL>
'
' Where:
'
<header> = #800001000 (This is an example header)
' The "#8" may be stripped off of the header and the remaining
' numbers are the size, in bytes, of the waveform data block.
The