Technical data

IEEE 488.2 Command Reference 17
N1911A/1912A P-Series Power Meters Programming Guide 759
LLO
The LLO (Local Lock Out) command can be used to disable the front panel
local key. With this key disabled, only the controller (or a hard reset by
the line power switch) can restore local control.
PPC
When addressed to listen, the PPC (Parallel Poll Configure) command
causes the power meter to be configured according to the parallel poll
enable secondary command which should follow this command.
PPD
Sending the PPC command followed by the PPD (Parallel Poll Disable)
command disables the power meter from responding to a parallel poll.
This is effectively a selective disable.
Tab le 17 - 94 PPD Mapping
Bit Weight Meaning
0 1 Always 0
1 2 Always 0
2 4 Always 0
3 8 Always 0
416 Always 1
532 Always 1
664 Always 1
7 128 Always 0