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Chapter 4 Command Reference
*DDT <arbitrary block>
(Define Device Trigger Command)
*DDT <arbitrary block>
(Define Device Trigger Command)
*DDT <arbitrary block>
Sets or queries the command that the device will execute when it receives the IEEE
488.1 Group Execute Trigger (GET) interface message (page 4- 42) or a *TRG
common command.
There are only three valid commands that the Counter will accept:
:INITiate[:IMMediate], :READ?, or :FETCh?; otherwise, error -224 is generated.
If a zero-length <arbitrary block> is specified as the parameter, the Counter will
do nothing when it receives a GET or *TRG command.
Query Response
Comments
4-124
Definite length block
The query response will be one of the following:
#14INIT
#15FETC?
#15READ?
#0
terminated with a new line and EOI.
*RST: #14INIT
When defining the device trigger to :FETCh? or :READ?, note that these
definitions do not allow the specification of a particular function. This lack of
a function specification results in each *DDT using the function specified/used
by the last :CONFigure, :FETCh, :READ, or :MEASure command, if
possible.
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