Agilent Technologies X Series Manual page 209

Lock the Front-panel keys (Remote Command Only)
Disables the instrument keyboard to prevent local input when the instrument is controlled remotely.
Annunciation showing a "K" for 'Klock" (keyboard lock) alerts the local user that the keyboard is
locked. Klock is similar to the GPIB Local Lockout function; namely that no front-panel keys are active
with the exception of the Power Standby key. (The instrument is allowed to be turned-off if Klock is
ON.) The Klock command is used in remote control situations where Local Lockout cannot be used.
Although primary intent of Klock is to lock-out the front panel, it will lock-out externally connected
keyboards through USB. Klock has no effect on externally connected pointing devices (mice).
The front panel 'Local' key (Cancel/Esc) has no effect if Klock is ON.
Mode
Remote Command
Example
Notes
Preset
State Saved
Initial S/W Revision
List SCPI Commands (Remote Command Only)
Outputs a list of the valid SCPI commands for the currently selected Mode.
Remote Command
Example
Notes
Initial S/W Revision
SCPI Version Query (Remote Command Only)
Returns the SCPI version number with which the instrument complies. The SCPI industry standard
changes regularly. This command indicates the version used when the instrument SCPI commands were
defined.
Remote Command
Example
Initial S/W Revision
All
:SYSTem:KLOCk OFF|ON|0|1
:SYSTem:KLOCk?
:SYST:KLOC ON
Keyboard lock remains in effect until turned-off or the instrument is
power-cycled
Initialized to OFF at startup, unaffected by Preset
No
Prior to A.02.00
:SYSTem:HELP:HEADers?
:SYST:HELP:HEAD?
The output is an IEEE Block format with each command separated with the
New-Line character (hex 0x0A)
Prior to A.02.00
:SYSTem:VERSion?
:SYST:VERS?
Prior to A.02.00
System Functions
System
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