KEPCO BHK-MG 200W (Full Rack) Series - Manual (Page 132)

B-2
BHK-MG (OPR) 022014
B.2 NUMERICAL VALUES The SCPI data parser of the BHK supports a maximum of 8 digits after the decimal
point and a maximum integer of 4 x 10
8
. Any values greater than these are not processed by the device and no
error is generated. The largest string that can be received or transmitted by the BHK is 253 characters.
All numerical data is returned in scientific notation, digits with decimal point and Exponent, e.g., 2.71E1 for 27.1
after calibration constants have been applied. Thus. for example, VOLT 14;VOLT? may return 1.39997E1
which indicates that the unit has been calibrated to provide 13.9997V for a programmed value of 14V, within
the calculation accuracy of the BHK. Error “-120” results from syntactical errors, e.g., the exponent exceeds 8,
a letter is identified, etc. Error “-222” is produced if the value exceeds the range of acceptable values for the
parameter.
B.3 ABORt COMMAND
ABOR
Syntax: Short Form: ABOR Long Form: ABORt
Description: Cancels previously stored trigger levels, resets WTG. The ABORt command cancels any pending
trigger levels previously stored by the CURR:TRIG or VOLT:TRIG commands. The pending level is set
equal to the corresponding immediate value. ABORt is executed each time power is turned on.
Related Commands: *RST, *TRG. (See example, Figure B-1.)
B.4 CAL COMMANDS AND QUERIES
CAL
CAL commands and queries are used to perform calibration of the unit via the control interface. These
commands must be issued in a specific sequence in order to properly calibrate the unit. To use these
commands, refer to Kepco’s website (www.kepcopower.com/drivers) and download the LabWindows/
CVI Version 5 driver for BHK-MG. This file provides remote calibration capability and uses the follow-
ing supported commands and queries:
CAL:COPY command
CAL:DUMP command
CAL:CURR[:DATA] command
CAL:CURR:LEV command
CAL:PASS command
CAL:RESTore command
CAL:SAVE command
CAL:STAT command and query
CAL:VOLT:LEV command
CAL:VOLT[:DATA] command
CAL:ZERO command
B.5 DISPlay:CONTrast COMMAND
DISP:CONT
Syntax: Short Form: DISP:CONT (0.0 to 0.9 or 0 to 9)
Long Form: DISPlay:CONTrast (0.0 to 0.9 or 0 to 9)
Description: Sets the contrast of the front panel LCD. The contrast value from (0.0 to 0.9) is stored in the non-
volatile memory and is retained when the power supply is turned off. A contrast value of 0.1 is best
when looking up at the display, 0.9 is best when looking down at the display. Values in between pro-
vide adjustment for optimum viewing. Related Commands: DISP:CONT?. (See example, Figure B-2.)
B.6 DISPlay:CONTrast? QUERY
DISP:CONT?
Syntax: Short Form: DISP:CONT? Long Form: DISPlay:CONTrast?
Return Value: Numerical value from 0.0 to 0.9 indicating contrast setting.
Description: Identifies LCD contrast setting. Returns contrast value (0.0 to 0.9). (See example, Figure B-2.)