8 LOV 256 Output is disabled by internal over-voltage protection
9 DOV 512 Output is disabled by external over-voltage protection
10 SF 1024 Output is disabled by a sense fault
11 OCF- 2048 Output is disabled by internal negative over-current protection
12 LOV- 4096 Output is disabled by internal negative over-voltage protection
13 DOV- 8192 Output is disabled by external negative over-voltage protection
14 FLT 16384 Hardware fault has occurred
15 not used not used 0 is returned
Operation Status Group
These registers record signals that occur during normal operation. The groups consist of a Condition,
PTR/NTR, Event, and Enable register. The outputs of the Operation Status register group are logically-
ORed into the OPERation summary bit (7) of the Status Byte register. Refer to Status Diagram.
The following table describes the Operation Status register bit assignments.
Bit Bit Name Decimal Value Definition
0, 1 not used not used 0 is returned
2 OFF 4 Output is programmed off or is in protection state
3 WTG-meas 8 Measurement system is waiting for a trigger
4 MEAS-active 16 Measurement is initiated or in progress
5 WTG-tran 32 Transient system is waiting for a trigger
6, 7 not used not used 0 is returned
8 CV 256 Output is in constant voltage
9 TRAN-active 512 Transient system is initiated or in progress
10 CC 1024 Output is in constant current
11 CP 2048 Output is in constant power
12 CR 4096 Output is in constant resistance
13 CZ 8192 Output is in constant impedance
14, 15 not used not used 0 is returned
Frame Status Group
This register summarizes the status information from the MPS mainframe. The groups consist of a
Condition, PTR/NTR, Event, and Enable register.
The following table describes the Frame status register bit assignments. Refer to Status Diagram.
5 SCPI Programming Reference
150 Keysight MP4300 Series Operating and Service Guide
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