Agilent Technologies EPM-P Series Programming Manual page 601

Reset Condition
On reset, the <action> field of *DDT is set to *TRG.
Query
*DDT?
The query returns the action which is performed on receipt of a GET or
*TRG. This is returned as a <definite length arbitrary block response
data> value which is in the form of #nN<action> as described on
page 16-8.
Error Message
• If an invalid parameter is received, error -224, "Illegal parameter value"
occurs.
EPM-P Series Power Meters Programming Guide
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*DDT <arbitrary block program data>|<string program data>
IEEE488.2 Command Reference
16-9