KEPCO KLN 750W Series, Firmware Version 1.60 to 1.6x - Manual (Page 74)

A-2
KLN 750W 032614
A.5 *OPC? — OPERATION COMPLETE QUERY
*OPC?
Syntax: *OPC?
Return value: <1 or 0> (ASCII)
0 placed in output queue if power supply has not completed operation after prior *OPC command.
1 placed in output queue when power supply has completed operation.
Description: Indicates when pending operations have been completed. *OPC command must be sent to first to
clear status bit 0 (Operation Complete). *OPC? will return “0” until all pending operations are complete
(all previous commands have been executed and changes in output level have been completed) At
that time *OPC? will return “1.” Subsequent commands are not inhibited while status bit 0 is “0.”
*OPC? is intended to be used at the end of a command line so that the application program can mon-
itor the bus for data until it receives the “1” from the power supply Output Queue.
A.6 *RST — RESET COMMAND
*RST
Syntax: *RST
Description: Resets power supply to the power on default state. The power supply output set to power-on
default state.
After sending *RST, output voltage is set to 0, output current is set to 0, OVP is set to rated voltage
+10% and OCP is set to rated current +10%. It is recommended that this command is always the first
command set after remote digital control starts, to ensure that the output is set to zero and control of
output on/off is properly enabled.
A.7 *TST? — SELF TEST QUERY
*TST?
Syntax: *TST? Returned value: 0 or 1
Description: Power Supply test.This query causes the power supply to do a self test and provide the controller
with pass/fail results. A 0 is returned if the unit passes the test. A 1 is returned to indicate the unit
failed self test.