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B.84 system:klock command, B.85 system:klock? query, Figure b-7. using system commands and queries – KEPCO BHK-MG 200W (Full Rack) Series User Manual

Page 149: B.86 system:password:cenable command, B.87 system:password:cdisable command, B.88 system:password:new command, B.89 system:password:state? query, B.84, System:klock, B.85

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BHK-MG (OPR) 022014

B-19

B.84 SYSTem:KLOCk COMMAND

SYST:KLOC

Syntax:

Short Form: SYST:KLOC

Long Form: SYSTem:KLOCk

(0 or OFF, 1 or ON)

Description: Locks (ON or 1) or unlocks (OFF or 0) the keypad. With the keypad unlocked the power supply

enters Remote mode as soon as a command or query is received. Once in Remote mode (with key-
pad unlocked) the front panel keys are disabled with the exception of the LOCAL key, which is used to
return to Local mode.

After sending a SYST:KLOC ON (keypad lock) command, all front panel keys, including LOCAL, are
disabled. The power supply is now in the “local lockout” state and the LCD changes from

Loc

to

Rwl

.

Local lockout can also be entered by sending the GPIB code (hex 11) to the power supply. The
power supply remains in “local lockout” until a SYST:KLOC OFF command is received. Related Com-
mands: SYST:KLOCK?. (See example, Figure B-7.)

B.85 SYSTem:KLOCk? QUERY

SYST:KLOC?

Syntax:

Short Form: SYST:KLOC?

Long Form: SYSTem:KLOCk?

Return Value: 0 or 1

Description: Identifies whether keypad is locked or unlocked. 0 = keypad unlocked, local operation possible by

pressing LOCAL key. 1 = keypad locked, LOCAL key disabled, only remote operation possible.
Related Commands: SYST:KLOCK. (See example, Figure B-7.)

FIGURE B-7. USING SYSTEM COMMANDS AND QUERIES

B.86 SYSTem:PASSword:CENable COMMAND

SYST:PASS:CEN

Syntax:

Short Form: SYST:PASS:CEN

Long Form: SYSTem:PASSword:CENable

Description: Sets the password enable state if the value matches the current password. This command allows

other commands such as all the calibration commands to operate.

B.87 SYSTem:PASSword:CDISable COMMAND

SYST:PASS:CDIS

Syntax:

Short Form: SYST:PASS:CDIS

Long Form: SYSTem:PASSword:CDISable

Description: Clears the password enable state if the value matches the current password.

B.88 SYSTem:PASSword:NEW COMMAND

SYST:PASS:NEW

Syntax:

Short Form: SYST:PASS:NEW ,
Long Form: SYSTem:PASSword:NEW ,

Description: Establishes new password. The old (current) password is checked, then the replaced by the new

password. See PAR. 3.3.6.2 and Figure 3-2 for special programming considerations.

B.89 SYSTem:PASSword:STATe? QUERY

SYST:PASS:STAT?

Syntax:

Short Form: SYST:PASS:STAT?

Long Form: SYSTem:PASSword:STATe?

Return Value: 0 or 1

Description: Returns a 1 if the password state is enabled or a 0 if it is disabled.

SYST:VERS

Returns 2003.0.

SYST:KLOC ON

keypad locked, only remote control possible.

SYST:KLOC?

Returns 1 indicating keypad locked.

SYST:KLOC OFF

keypad unlocked, pressing LOCAL key allows Local mode
operation.

SYST:KLOC?

Returns 0 indicating keypad unlocked.