ATE-DMG 020613
B-5
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
output voltage by small increment. CAL:VOLT[:DATA] 2 decreases output voltage by large increment.
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 DIAG:EXT COMMAND
DIAG:EXT
Syntax:
Short Form: DIAG:EXT <value>
Long Form: DIAG:EXT <value>
where <value> xx
HEX
Description:
DIAG:EXT 01 initializes external analog control and 03 sets VOLT:MODE and CURR:MODE to
EXTERNAL DIAG:EXT 00 turns off the external analog control feature).
Setting is stored in
NVRAM and retained upon subsequent power up.
B.13 DIAG:EXT?
QUERY
DIAG:EXT?
Syntax:
Short Form: DIAG:EXT?
Long Form: DIAG:EXT]?
Return Value: 00
HEX
, 01
HEX
or 03
HEX
Description:
Returns 00 when external analog control feature is disabled. Returns 01 when external analog
control feature is enabled. Returns 03 when external analog control feature is enabled upon
power up.
B.14 DISPlay:CONTrast
COMMAND
DISP:CONT
Syntax:
Short Form: DISP:CONT <num_value> (0 to 1)
Long Form: DISPlay:CONTrast <num_value> (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.)
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