Technical data

Waveform Commands 34
Agilent Infiniium 9000 Series Oscilloscopes Programmer's Reference 1119
<date> A string containing the date in the format DD MMM YYYY, where DD is
the day, 1 to 31; MMM is the month; and YYYY is the year.
<time> A string containing the time in the format HH:MM:SS:TT, where HH is the
hour, 0 to 23, MM is the minutes, 0 to 59, SS is the seconds, 0 to 59, and
TT is the hundreds of seconds, 0 to 99.
<frame_
model_#>
A string containing the model number and serial number of the
oscilloscope in the format of MODEL#:SERIAL#.
<acquisition
_mode>
0 for RTIMe mode. 1 for ETIMe mode. 2 not used. 3 for PDETect.
<completion> The completion value is the percent of time buckets that are complete. The
completion value is ignored when it is sent to the oscilloscope in the
preamble. (See the ":WAVeform:COMPlete?" on page 1088 query.)
<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?" on page 1086 query.)
See Table 24 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 24 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" on page 1113.)
Type This value describes how the waveform was acquired. (See also the
":WAVeform:TYPE?" on page 1129 query.)
Points The number of data points or data pairs contained in the waveform data.
(See ":ACQuire:POINts[:ANALog]" on page 158.)
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?" on page 1129
and ":ACQuire[:AVERage]:COUNt" on page 149.)