Agilent Technologies InfiniiVision 7000A Series Programmer's Manual page 839

Agilent InfiniiVision 7000A Series Oscilloscopes Programmer's Guide
Console.WriteLine("Wrote screen image ({0} bytes) to file.", _
nBytes)
' Return I/O timeout to five seconds.
myScope.SetTimeoutSeconds(5)
' MEASURE - The commands in the MEASURE subsystem are used to
' make measurements on displayed waveforms.
' Set source to measure.
myScope.DoCommand(":MEASure:SOURce CHANnel1")
' Query for frequency.
Dim fResults As Double
fResults = myScope.DoQueryValue(":MEASure:FREQuency?")
Console.WriteLine("The frequency is: {0:F4} kHz", _
fResults / 1000)
' Query for peak to peak voltage.
fResults = myScope.DoQueryValue(":MEASure:VPP?")
Console.WriteLine("The peak to peak voltage is: {0:F2} V", _
fResults)
' WAVEFORM_DATA - Get waveform data from oscilloscope. To
' obtain waveform data, you must specify the WAVEFORM
' parameters for the waveform data prior to sending the
' ":WAVEFORM:DATA?" query.
'
' Once these parameters have been sent, the
' ":WAVEFORM:PREAMBLE?" query provides information concerning
' the vertical and horizontal scaling of the waveform data.
'
' With the preamble information you can then use the
' ":WAVEFORM:DATA?" query and read the data block in the
' correct format.
' WAVE_FORMAT - Sets the data transmission mode for waveform
' data output. This command controls how the data is
' formatted when sent from the oscilloscope and can be set
' to WORD or BYTE format.
' Set waveform format to BYTE.
myScope.DoCommand(":WAVeform:FORMat BYTE")
' WAVE_POINTS - Sets the number of points to be transferred.
' The number of time points available is returned by the
' "ACQUIRE:POINTS?" query.
' fraction of the total time points available.
myScope.DoCommand(":WAVeform:POINts 1000")
' GET_PREAMBLE - The preamble contains all of the current
' WAVEFORM settings returned in the form <preamble block><NL>
' where the <preamble block> is:
' FORMAT : int16 - 0 = BYTE, 1 = WORD, 4 = ASCII.
' TYPE : int16 - 0 = NORMAL, 1 = PEAK DETECT,
'
' POINTS : int32 - number of data points transferred.
Programming Examples
This can be set to any binary
2 = AVERAGE.
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