Keithley 2000, User Manual, Page: 205 / 280

SCPI Command Reference 5-67
RS-232 interface commands
:LOCal
:SYSTem:LOCal Take 2000 out of remote
Description
Normally, the Model 2000 is in local during RS-232 communications. In this
state, front panel keys are operational. However, the user may wish to lock
out front keys during RS-232 communications (see :RWLock).
This action command isu sed to take the Model 2000 out of the remote state
and enables the operation of front panel keys. Note that this command can
only be sent over the RS-232 interface.
:REMote
:SYSTem:REMote Place the Model 2000 in remote
Description
This action command is used to place the Model 2000 in the remote state. In
remote, the front panel keys will be locked out if local lockout is asserted (see
:RWLock). Note that this command can only be sent over the RS-232 inter-
face.
:RWLock
:SYSTem:RWLock Disable front panel keys
Description
This action command is used to disable front panel controls (local lockout)
during RS-232 operation.
Taking the instrument out of remote (see :LOCal) restores front panel keys
operation. Note that this command can only be sent over the RS-232 inter-
face.
Line frequency query
:LFRequency?
:SYSTem:LFRequency? Query line frequency
Description
This query returns the frequency of the power line from which the unit is op-
erating. The power line frequency is automatically sensed upon power-up.