KEPCO ABC-DM SERIES - Manual (Page 75)

ABC 040104
B-5
CAL:VOLT[:DATA] 3 increases output voltage by large increment. This command is used during volt-
age calibration to adjust the output voltage for voltage zero calibration as well as full scale voltage cal-
ibration. Output voltage is monitored on a calibrated digital multimeter and increased or decreased as
required using this command. This command is only effective if Calibration status and either Voltage
Zero or Voltage Full Scale calibration are active. This command is equivalent to the front panel left and
right arrow keys for fine adjustment and the 1 and 3 keys for coarse adjustment. Related Commands:
CAL:STAT, CAL:PASS, CAL:VOLT, CAL:CURR, CAL:ZERO, CAL:SAVE. (See example, Figure B-2.)
B.11
CALibrate:ZERO
COMMAND
CAL:ZERO
Syntax: Short Form: CAL:ZERO Long Form: CALibrate:ZERO
Description: Sets output to zero while calibration equipment connections are changed.This command is used when
changing from Voltage to Current calibration or vice-versa. CAL:ZERO sets output voltage and current
to zero. The user then connects or disconnects the shunt resistor or the digital voltmeter from the out-
put terminals of the power supply as required for the subsequent Voltage or Current calibration. The
next command should select the new parameter to be calibrated. Related Commands: CAL:STAT,
CAL:VOLT, CAL:CURR, CAL:SAVE. (See example, Figure B-2.)
B.12
DISPlay:CONTrast
COMMAND
DISP:CONT
Syntax: Short Form: DISP:CONT (0 to 1)
Long Form: DISPlay:CONTrast (0.0 to 1.0)
Description: Sets the contrast of the front panel LCD. The contrast value from (0.1 to 0.9) is stored in the non-
volatile memory and is retained when the power supply is turned off. A contrast value of 0 is best
when looking up at the display, 1 is best when looking down at the display. Values in between provide
adjustment for optimum viewing. Setting the values to 0.1 or 0.9 are not reported back and are
rounded to 0 or 1 respectively. Related Commands: DISP:CONT?. (See example, Figure B-3.)
FIGURE B-3. USING DISPLAY COMMANDS
B.13
DISPlay:CONTrast?
QUERY
DISP:CONT?
Syntax: Short Form: DISP:CONT? Long Form: DISPlay:CONTrast?
Return Value: Numerical value from 0 to 1 indicating contrast setting.
Description: Identifies LCD contrast setting. Returns 0 if LCD is at minimum setting, 1 if at maximum setting. and
returns values between 0.2 through 0.8 for other contrast settings. Related Commands: DISP:CONT.
(See example, Figure B-3.)
B.14
DISPlay:MODE
COMMAND
DISP:MODE
Syntax: Short Form: DISP:MODE NORM or DISP:MODE TEXT
Long Form: DISPlay:MODE NORMal or DISPlay:MODE TEXT
Description: Switches the LCD display between Normal and Text mode. Switches the display between its nor-
mal metering mode and a mode in which it displays text sent by the user on the second line. The
default status at power up or after *RST is NORMal. In order to display text on the second line the dis-
play mode has to be changed to TEXT. Related Commands: DISP:MODE?, DISP:TEXT,
DISP:TEXT?, *RST. (See example, Figure B-3.)
DISP:CONT 0.9 Sets LCD contrast value to 0.9.
DISP:CONT? Returns 0.9.
DISP:MODE NORM Changes LCD to Normal metering mode.
DISP:MODE? Returns NORMAL.
DISP:MODE TEXT Changes LCD to Text mode.
DISP:TEXT “**ABC IS IN USE” Second line of display reads **ABC IS IN USE.
DISP:MODE? Returns “TEXT”
DISP:TEXT? Returns “**ABC IS IN USE”