Gpib Universal Commands - Keysight N1911A Programming Manual

17 IEEE 488.2 Command Reference

GPIB Universal Commands

DCL
The DCL (Device Clear) command causes all GPIB instruments to assume a
cleared condition. The definition of device clear is unique for each instrument. For
the power meter:
– All pending operations are halted, that is, *OPC? and *WAI.
– The parser (the software that interprets the programming codes) is reset and
– The output buffer is cleared.
GET
The GET (Group Execute Trigger) command triggers all channels that are in the
"wait-for-trigger" state.
Using the *DDT command may change the function of the GET command.
Error Message
If TRIGger:SOURce is not set to BUS, an error -211, "Trigger ignored" occurs.
If the power meter is not in the "wait-for-trigger" state then error –211, "Trigger
ignored" occurs.
GTL
The GTL (Go To Local) command is the complement to remote. It causes the
power meter to return to local control with a fully enabled front panel. When
reverting to local mode the power meter triggering is set to free run.
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.
754
now expects to receive the first character of a programming code.
N1911A/1912A P-Series Power Meters Programming Guide