Agilent Technologies InfiniiVision 6000 Series Manual de Serviço descarregar pdf (Página 647)

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101

Commands by Subsystem 5

Agilent InfiniiVision 6000 Series Oscilloscopes Programmer's Guide 647

' 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)

sngYIncrement = Preamble(7)

sngYOrigin = Preamble(8)

lngYReference = Preamble(9)

Example program from the start: "VISA COM Example in Visual Basic" on

page 824

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