Agilent Technologies N1911A Programming Manual page 769

Examples of <arbitrary block program data> parameters are:
• #15FETC? and #206FETCh?
Examples of <string program data> are:
• "FETCh1?", "FETCh?" and "TRIG1;FETC1"
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
Error Message
• If an invalid parameter is received, error –224, "Illegal parameter
N1911A/1912A P-Series Power Meters Programming Guide
value" occurs.
IEEE 488.2 Command Reference
page
17
709.
741