Bit
Bit Name
Decimal
Value
Definition
0
CV
1
Output is in constant voltage
1
CC
2
Output is in constant current
2
OFF
4
Output is programmed off
3
WTG-meas
8
Measurement system is waiting for a trigger
4
WTG-tran
16
Transient system is waiting for a trigger
5
MEAS-active
32
Measurement system is initiated or in progress
6
TRAN-active
64
Transient system is initiated or in progress
7-15
not used
not used
0 is returned
Questionable Status Groups
These registers record signals that indicate abnormal operation. The groups consist of a Condition,
PTR/NTR, Event, and Enable register. The outputs of the Questionable Status groups are logically-
ORed into the QUEStionable summary bit (3) of the Status Byte register. Refer to
The following table describes the Questionable1 Status register bit assignments.
Bit
Bit Name
Decimal
Value
Definition
0
OV
1
Output is disabled by the over-voltage protection
1
OC
2
Output is disabled by the over-current protection
2
PF
4
Output is disabled by power-fail (low-line or brownout on AC line)
3
CP+
8
Output is disabled by the positive over-power limit
4
OT
16
Output is disabled by the over-temperature protection
5
CP-
32
Output is disabled by the negative over-power limit
6
OV-
64
Output is disabled by a negative OV due to reversed sense leads
7
LIM+
128
Output is in positive voltage or current limit
8
LIM-
256
Output is in positive voltage or negative current limit
9
INH
512
Output is disabled by an external INHibit signal
10
UNR
1024
Output is unregulated
11
PROT
2048
Output is disabled by a watchdog timer protection
12
EDP
4096
Output is disabled by excessive output dynamic protection
13-15
not used
not used
0 is returned
Keysight RP7900 Series Operating and Service Guide
241
5 SCPI Programming Reference
Summary of Contents for RP7900 Series
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