KEPCO BOP 1000W, Operator'S Manual

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B-30
BOP-1K 080709
B.117 STATus:QUEStionable:ENABle COMMAND
STAT:QUES:ENAB
Syntax: Short Form: STAT:QUES:ENAB <int_value> Long Form: STATus:QUESionable:ENABle <int_value>
Description: Programs Questionable Condition Enable Register (see Table B-4). The Questionable Condition
Enable Register determines which conditions are allowed to set the Questionable Condition Register;
it is a mask for enabling
specific bits in the Questionable Event register that can cause the question-
able summary bit (bit 3) of the Status Byte register to be set. The questionable summary bit is the log-
ical OR of all the enabled bits in the Questionable Event register
.
Bit set to 1 = function enabled
(active, true); bit reset to 0 = function disabled (inactive, false)
.
(See example, Figure B-10.)
FIGURE B-10. USING STATUS COMMANDS AND QUERIES
NOTES: 1. The power supply is assumed to be operating in constant voltage (CV) mode.
2 Examples below are intended only to illustrate command functions. Refer to PAR. 3.5.2 for
programming techniques to optimize performance.
OUTP:ON Sets output on.
STAT:PRES Operation Condition and Questionable Condition registers are
reset.
*CLS Resets Enable Amplifier
STAT:QUES:ENAB 12228 Allows latching of CE and VE bits
STAT:OPER:ENAB 1280 Mask enabled for CC and CV bits.
STAT:OPER:ENAB? Returns 1280 (256 + 1024) (CC and CV bits set).
INIT:CONT ON Continuous triggers enabled.
STAT:OPER:COND? Power supply returns 256 to indicate that power
supply is in constant voltage mode.
FUNC:MODE:CURR Commands power supply to current mode.
STAT:OPER? Returns 1024, indicating that since the last reading
of the Operation Event Register the power supply has entered
Constant Current mode.
STAT:OPER? Returns 0 indicating no changes since previous reading of the
Operation Event register.
STAT:QUES? Returns 0 (no questionable conditions occurred since previous
reading
--- OVERCURRENT CONDITION OCCURS
SYST:ERR? Power supply returns 0,“No error” message.
*RST;:VOLT 5;CURR 1;OUTP ON The BOP is in Voltage mode and delivering 5 Volts
*ESR? Bop returns a 0 - all functions are normal
FUNC:MODE CURR BOP is in Current mode
*ESR?;STAT:QUES:COND? BOP returns 8;4097 - Current error.
*ESR?;STAT:QUES? BOP returns 0;4096 - no new errors, Current Error
*ESR?;STAT:QUES? BOP returns 0;0 - no new errors
MEAS:CURR?;VOLT? BOP returns 1.0E-4;5.00003E0 - Voltage is 5 volts
STAT:QUES:COND? BOP returns 4097 - error still in effect
Short is applied to the BOP
*ESR?:STAT:QUES:COND? BOP returns 0;1 - Current mode is selected
MEAS:VOLT?;CURR? BOP returns.1E-4;1.00003E0 - Current is 1 amperes
FUNC:MODE VOLT;*ESR? BOP switches mode, returns 3 - settling
*ESR?:;STAT:QUES? BOP returns 8;8194
Short is removed from the BOP output
STAT:QUES:COND? BOP returns 2, voltage mode operation OK.