Command Groups
Command
Description
WFMDB:WFMDB<x>:CLEar Deletes (clears) resource of specified
WfmDB
WFMDB:WFMDB<x>:DISplay Sets or returns the WfmDB<x> displayed
WFMDB:WFMDB<x>:ENABle
Sets or returns the specified waveform
database
WFMDB:WFMD
B<x>:PERSistence:COUNt
Sets or retu
rns the waveform count
applied to W fmDB<x> when set to Variable
Persistence mode
WFMDB:WFMDB<x>:PERSistence:MODe Sets or returns the persistence mode (two
availabl
e) that WfmDB<x> uses
WFMDB:WF
MDB<x>:PERSistence:
SAMPles?
Returns t
he samples count in effect
for WfmDB<x> when using in Variable
Persistence mode
WFMDB:WFMDB<x>:SOURce Sets or r eturns the WfmDB<x> source
Wa veform Transfer Command Group
Use th
e commands in the Waveform Transfer Command Group to transfer
waveform data points to and from the instrument. Waveform data points are a
collection of values that define a waveform. One data value usually represents
one data point in the waveform record. When working with envelope waveforms,
each data value is either the minimum or the maximum of a min/max pair.
Before you transfer waveform data, you must specify the data format, record
length, a nd waveform source.
Data Fo rmats
Acquired waveform data uses 14 or more bits to represent each data point. The
number of bits used depends on the acquisition mode specified when you acquired
the data. Data acquired in SAMple or ENVElope mode uses 14 bits per waveform
data point. Data acquired in AVERage mode uses up to 16 bits per point.
The instrument can transfer waveform data in either ASCII or binary format. You
specify the format with the DATa:ENCdg command. The instrument uses signed,
4 byte integers and floating point values; it does not support unsigned values.
ASCII data is represented by signe d integer or floating point values. An example
of an ASCII waveform data string may look like this:
:CURVE -509476864,-512163840,-511115264,- 510918656,
-516161536,-484179968,-117 112832,207093760,
322437120,351600640,409206 784,468451328,
482934784,490668032,495517 696,432668672,
482148352,483655680,493617 152,495321088,
499843072,493420544,488964 096,497221632,
…
DSA/CSA/TDS8X00/B Series Programmer Manual 2-45
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