KEPCO KLP Series Developer's Guide, Rev 1 - Manual (Page 109)

KLP 031113
B-3
B.7 INITiate:IMMediate COMMAND
INIT:IMM
Syntax: Short Form: INIT:IMM Long Form: INITiate:IMMediate
Description: Arms a single trigger event. If INIT:CONT is OFF (disabled), then INIT:IMM arms the trigger system
for a single trigger event and sets the WTG bit in the Questionable Status register to 1. If INIT:CONT
is ON (enabled), then the trigger system is continuously armed. Sending INIT:IMM after enabling
INT:CONT is redundant and causes the power supply to return an E213 "INIT ignored" error message.
Sending an active trigger command (*TRG) completes the sequence, causing the power supply output
to be programmed to the previously stored values of VOLT:TRIG and CURR:TRIG. After a trigger
command has been received, subsesquent trigger commands have no effect unless preceded by
INIT:IMM or INIT:CONT ON. Related Commands: , *RST, *TRG (See example, Figure B-1).
NOTE: If the selected trigger source is external (TRIG:SOUR EXT) and INIT:CONT is enabled, the first
trigger command must be preceded by INIT:IMM; subsequent trigger commands will be pro-
cessed normally.
FIGURE B-1. PROGRAMMING THE OUTPUT
NOTE: The following example assumes KLP 75-33-1200 with virtual model set for 75V, 16A and output operating
in voltage stabilization mode. See Figure B-3 for directions on programming virtual model limits.
OUTP ON Enables output.
OUTP? Returns 1 (output enabled).
STAT:PRES Disables all status event reporting.
STAT:OPER:ENAB 32 Enables only bit 5 (WTG, Waiting for Trigger)
STAT:OPER:ENAB? Returns 32, WTG bit enabled.
VOLT 75;CURR 5E-1 Programs output voltage to 75V, current limit to 0.5A.
INIT:CONT ON Enables continuous triggering.
INIT:CONT? Returns 1 (continuous triggering enabled).
STAT:QUES? Returns 32, indicating WTG bit is set (trigger armed).
VOLT:TRIG 31.5;CURR:TRIG8E-1 Programs output voltage for 31.5V, current limit for 0.8A upon receipt of trigger
stimulus.
*TRG Output voltage is set to 31.5V with 0.8A current limit.
STAT:QUES? Returns 32 again, indicating WTG bit was set again (continuous triggering).
VOLT 32.1;CURR 5 Programs output voltage to 32.1V, current limit to 5A.
MEAS:VOLT? Returns actual output voltage (if output voltage is 32.15V, power supply
returns 3.215E1).
MEAS:CURR? Returns actual output current.
FUNC:MODE? Returns operating mode of power supply followed by programmed operating
mode, e.g., VOLT,VOLT.
CURR:TRIG? Returns 5E0 (current value established by CURR:TRIG).
VOLT:TRIG? Returns 3.15E1 (voltage value established by VOLT:TRIG).
ABOR Changes pending trigger levels to immediate values (32.1V, 5A).
VOLT 37.7;CURR 2.5 Programs output voltage to 37.7V, current limit to 2.5A.
*TRG Output returns to trigger values established by ABOR (32.1V, 5A).
INIT:CONT 0 Disables continuous triggering.
INIT:CONT? Returns 0 (continuous triggering disabled).
INIT:IMM Arms single trigger event.
STAT:QUES? Returns 32 indicating WTG bit is set (trigger armed).
*TRG Output returns to trigger values established by ABOR (32.1V, 5A).
STAT:QUES? Returns 0, indicating trigger is not rearmed (single trigger event).
VOLT 37.7, CURR 2.5 Programs output voltage to 37.7V, current limit to 2.5A.
INIT Output returns to previous trigger values (32.1V, 5A) without rearming trigger.
OUTP OFF Output disabled.
OUTP? Returns 0 (output disabled).
MEAS:VOLT? Returns 0 (measured output voltage).
VOLT? Returns 3.21E1 (last programmed output voltage).
CURR? Returns 5E0 (last programmed output current).
CURR? MAX Returns 1.6E1 (maximum allowable current for present virtual model).
CURR? MIN Returns 4E-1 (minimum allowable programming current for model).