AMETEK HPD Series GPIB-Multichannel - Manual (Page 63)

Operation
Power Supply Operation
59
To set up Auxiliary line A:
OUTP:AUXA:SOUR
To set up Auxiliary line B:
OUTP:AUXB:SOUR
The choices for are listed above.
To check the state of the line:
OUTP:AUXA:STAT?
OUTP:AUXB:STAT?
This command returns a 1 or 0. If it returns a 1, this means that the status selected as
the auxiliary line mnemonic is true.
The XFR and XHR series power supplies use the polarity (POL) LED and fault
(FTL) LED to indicate is the AUX A and AUX B status conditions are true.