KEPCO ABC-DM SERIES - Manual (Page 74)

B-4
ABC 040104
B.5
CALibrate:PASSword
COMMAND
CAL:PASS
Syntax: Short Form: CAL:PASS new_password (new_password is 4 digits)
Long Form: CALibrate:PASSword new_password (new_password is 4 digits)
Description: Changes the password used to put the power supply in Calibrate status. To execute this com-
mand, the power supply must be in Calibrate status (see CAL:STAT).
password = 4 digits, required to enter Calibrate status. Related Commands: CAL:PASS, CAL:VOLT,
CAL:CURR, CAL:ZERO, CAL:SAVE. (See example, Figure B-2.)
B.6
CALibrate:SAVE
COMMAND
CAL:SAVE
Syntax: Short Form: CAL:SAVE Long Form: CALibrate:SAVE
Description: Saves computed calibration values in non-volatile memory. The Analog to Digital (A/D) converter
is read to establish the final values of the calibration state. For example, if VOLT:MAX was the last cal-
ibration state, the voltage A/D converter is read and the volts per step multiplier is calculated. The volt-
age per step for the voltage Digital to Analog (D/A) converter is also calculated and the non-volatile
memory is updated from the volatile calibration constants. Previous values are not lost, and can be
restored using Local mode (see PAR. 4.5 ). This command should be the last command before exiting
Calibrate status. CAL:STAT, CAL:PASS, CAL:VOLT, CAL:CURR, CAL:ZERO, CAL:SAVE. (See
example, Figure B-2.)
B.7
CALibrate:STATus
COMMAND
CAL:STAT
Syntax: Short Form: CAL:STAT [,password]
Long Form: CALibrate:STATus [,password]
where boolean = 0 or OFF, 1 or ON, password = 4 digits, required if
Description: Sets the power supply to Calibrate status. 1 or ON causes power supply to enter Cali-
brate status. 0 or OFF causes power supply to exit Calibrate status. Upon entering Cali-
brate status the current calibration constants are stored in the volatile memory. If the state is 0, the
non-volatile calibration constants are supplied to the ASC working calibration.
password = 4 digits, required to enter Calibrate status. If the wrong password is entered, error mes-
sage -224 is posted to the queue. Related Commands: CAL:PASS, CAL:VOLT, CAL:CURR,
CAL:ZERO, CAL:SAVE. (See example, Figure B-2.)
B.8
CALibrate:STATus?
QUERY
CAL:STAT?
Syntax: Short Form: CAL:STAT? Long Form: CALibrate:STATus?
Return Value: (boolean = 0 or OFF, 1 or ON)
Description: Identifies whether the power supply is in Calibrate status. 1 indicates power supply is in Calibrate
status. 0 indicates power supply is not in Calibrate status. (See example, Figure B-2.)
B.9
CALibrate:VOLTage:LEVel
COMMAND
CAL:VOLT:LEV
Syntax: Short Form: CAL:VOLT:LEV {MIN | MAX} Long Form: CALibrate:VOLTage:LEVel {MIN | MAX}
Description: Selects Voltage calibration, only effective with power supply in Calibrate status.
CAL:VOLT:LEV MIN selects Voltage Zero Calibration. CAL:VOLT:LEV MAX selects Voltage Full Scale
Calibration. Normally Voltage Zero is done first, then Voltage Full Scale Calibration. CAL:VOLT:MAX
causes the maximum value to be read and saved in calibration
xx . The power supply then raises the
output level to maximum and waits for CAL:VOLT[:DATA] commands. Related Commands: CAL:STAT,
CAL:PASS, CAL:VOLT, CAL:CURR, CAL:ZERO, CAL:SAVE. (See example, Figure B-2.)
B.10
CALibrate:VOLTage[:DATA]
COMMAND
CAL:VOLT
Syntax: Short Form: CAL:VOLT[:DATA] {0 | 1 | 2 | 3} Long Form: CALibrate:VOLTage[:DATA] {0 | 1 | 2 | 3}
Description: Increases or decreases output voltage during calibration only.
CAL:VOLT[:DATA] 0 decreases output voltage by small increment. CAL:VOLT[:DATA] 1 increases out-
put voltage by small increment. CAL:VOLT[:DATA] 2 decreases output voltage by large increment.