17 IEEE 488.2 Command Reference
740 N1911A/1912A P-Series Power Meters Programming Guide
*DDT <arbitrary block program data>|<string program data>
The *DDT (Define Device Trigger) command determines the power meter’s
response to a GET (Group Execute Trigger) message or *TRG common
command. This command effectively turns GET and *TRG into queries, with
the measured power being returned.
Syntax
Parameters
1
The <action> field of the parameter may contain:
FETC?
FETC1?
FETC2? (N1912A only)
*TRG
TRIG1
TRIG2 (N1912A only)
2
The first digit after the # indicates the number of following digits. The following digits indicate
the length of the data.
Type Description Range of Values
arbitrary block program
data
The command which is
executed on a GET or
*TRG.
#nN<action>
1,2
string program data
“<action>”
1
string program data
*DDT
Space
arbitrary block program data
?
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