Lists the names of all user-defined arbitrary waveforms downloaded to non-
volatile memory. Returns the names of up to four waveforms. A series of
quoted strings separated with commas is returned as shown in the example
below. If no user-defined waveforms are currently downloaded, the
command returns a null string ( " " ).
:DATA2:NVOL:CAT?
Response
"TEST1_ARB","TEST2_ARB","TEST3_ARB","TEST4_ARB"