Technical data

:WAVeform Commands 29
Agilent InfiniiVision 3000 X-Series Oscilloscopes Programmer's Guide 725
• ":DIGitize" on page 163
• ":WAVeform:COUNt" on page 716
• ":WAVeform:DATA" on page 717
• ":WAVeform:FORMat" on page 719
• ":WAVeform:POINts" on page 720
• ":WAVeform:TYPE" on page 734
• ":WAVeform:XINCrement" on page 737
• ":WAVeform:XORigin" on page 738
• ":WAVeform:XREFerence" on page 739
• ":WAVeform:YINCrement" on page 740
• ":WAVeform:YORigin" on page 741
• ":WAVeform:YREFerence" on page 742
Example Code
' GET_PREAMBLE - The preamble block contains all of the current
' WAVEFORM settings. It is returned in the form <preamble_block><NL>
' where <preamble_block> is:
' FORMAT : int16-0=BYTE, 1 = WORD, 4 = ASCII.
' TYPE : int16-0=NORMAL, 1 = PEAK DETECT, 2 = AVERAGE
' POINTS : int32 - number of data points transferred.
' COUNT : int32-1andisalways1.
' XINCREMENT : float64 - time difference between data points.
' XORIGIN : float64 - always the first data point in memory.
' XREFERENCE : int32 - specifies the data point associated with
' x-origin.
' YINCREMENT : float32 - voltage diff between data points.
' YORIGIN : float32 - value is the voltage at center screen.
' YREFERENCE : int32 - specifies the data point where y-origin
' occurs.
Dim Preamble()
Dim intFormat As Integer
Dim intType As Integer
Dim lngPoints As Long
Dim lngCount As Long
Dim dblXIncrement As Double
Dim dblXOrigin As Double
Dim lngXReference As Long
Dim sngYIncrement As Single
Dim sngYOrigin As Single
Dim lngYReference As Long
Dim strOutput As String
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)