Technical data

Waveform Commands 32
Agilent Infiniium 90000 Series Oscilloscopes Programmer's Reference 893
<x_units>
<y_units>
0 for UNKNOWN units. 1 for VOLT units. 2 for SECOND units. 3 for
CONSTANT units. 4 for AMP units. 5 for DECIBEL units.
<max bandwidth
limit> <min
bandwidth limit>
The band pass consists of two values that are an estimation of the
maximum and minimum bandwidth limits of the source waveform. The
bandwidth limit is computed as a function of the selected coupling and
filter mode. (See the :WAVeform:BANDpass? query.)
See Table 27 for descriptions of all the waveform preamble elements.
Example This example outputs the current waveform preamble for the selected
source to the string variable, strPreamble.
Dim strPreamble As String ' Dimension variable.
myScope.WriteString ":SYSTEM:HEADER OFF" ' Response headers off.
myScope.WriteString ":WAVEFORM:PREAMBLE?"
strPreamble = myScope.ReadString
Table 27 Waveform Preamble Elements
Element Description
Format The format value describes the data transmission mode for waveform
data output. This command controls how the data is formatted when it is
sent from the oscilloscope. (See :WAVeform:FORMat.)
Type This value describes how the waveform was acquired. (See also the
:WAVeform:TYPE? query.)
Points The number of data points or data pairs contained in the waveform data.
(See :ACQuire:POINts.)
Count For the AVERAGE waveform type, the count is the number of averages
that have occurred. For RAW and INTERPOLATE waveform types, this
value is 0 or 1. The count value is ignored when it is sent to the
oscilloscope in the preamble. (See :WAVeform:TYPE and
:ACQuire:COUNt.)
X Increment The X increment is the duration between data points on the X axis. For
time domain waveforms, this is the time between points. (See the
:WAVeform:XINCrement? query.)
X Origin The X origin is the X-axis value of the first data point in the data record.
For time domain waveforms, it is the time of the first point. This value is
treated as a double precision 64-bit floating point number. (See the
:WAVeform:XORigin? query.)
X Reference The X reference is the data point associated with the X origin. It is at this
data point that the X origin is defined. In this oscilloscope, the value is
always zero. (See the :WAVeform:XREFerence? query.)
Y Increment The Y increment is the duration between Y-axis levels. For voltage
waveforms, it is the voltage corresponding to one level. (See the
:WAVeform:YINCrement? query.)