KEPCO ATE-DMG SERIES - Manual (Page 89)

ATE-DMG 042314 B-19
B.80 STATus:QUEStionable[:EVENt]? QUERY 
STAT:QUES?
Syntax: Short Form: STAT:QUES[EVEN]? Long Form: STATus:QUEStionable[EVENT]?
Return Value: actual register value
Description: Indicates questionable events that occurred since previous STAT:QUES? query. Returns the
value of the Questionable Event register (see Table B-3). The Questionable Event register is a
read-only register which holds (latches) all events. Reading the Questionable Event register clears it.
(See example, Figure B-7.)
B.81 STATus:QUEStionable:CONDition? QUERY 
STAT:QUES:COND?
Syntax: Short Form: STAT:QUES:COND? Long Form: STATus:QUEStionable:CONDition?
Return Value: actual register value
Description: Returns the value of the Questionable Condition Register (see Table B-3). The Questionable
Condition Register contains unlatched real-time information about questionable conditions of the
power supply. Bit set to 1 = condition (active, true); bit reset to 0 = condition (inactive, false). (See
example, Figure B-7.)
B.82 STATus:QUEStionable:ENABle COMMAND 
STAT:QUES:ENAB
Syntax: Short Form: STAT:QUES:ENAB Long Form: STATus:QUESionable:ENABle
Function: Programs Questionable Condition Enable Register.
Description: Programs Questionable Condition Enable Register (see Table B-3).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-7.)
B.83 STATus:QUEStionable:ENABle? QUERY
STAT:QUES:ENAB?
Syntax: Short Form: STAT:QUES:ENAB? Long Form: STATus:QUESionable:ENABle?
Return Value: actual register value
Description: Reads Questionable Condition Enable Register (see Table B-3). Power supply returns value of
Questionable Condition Enable Register, indicating which conditions are being monitored. Bit set to 1
= function enabled (active, true); bit reset to 0 = function disabled (inactive, false)
. Related Com-
mands: STAT:QUES?. (See example, Figure B-7.)
B.84 SYSTem:ERRor[:NEXT]? QUERY
SYST:ERR?
Syntax: Short Form: SYST:ERR[:NEXT]? Long Form: SYSTem:ERRor[:NEXT]?
Return Value:
Description: Posts error messages to the output queue. Returns the next error number followed by its corre-
sponding error message string from the instrument error queue. The error queue is a FIFO (first in first
out) buffer that stores errors as they occur. As it is read, each error is removed from the queue and the
next error message is made available. When all errors have been read, the query returns 0,”No error”.
If more than 15 errors are accumulated, it will overflow. The oldest errors stay in the queue but the
most recent errors are discarded. The last error in the queue will be -350,”Too many errors.” Error
messages are defined in Table B-4.
TABLE B-3. QUESTIONABLE EVENT REGISTER, QUESTIONABLE CONDITION REGISTER
AND QUESTIONABLE CONDITION ENABLE REGISTER BITS
CONDITION NU OC OV
BIT 15 - 2 1 0
VALUE 32,768 - 4 2 1
OC - OVERCURRENT PROTECTION TRIPPED
OV - OVERVOLTAGE PROTECTION TRIPPED
NU - NOT USED