OPERation status register
The OPERation status register contains information about conditions that are part of the instrument's
normal operation.
Bit Value Bit Name Description
0-3 1 to 8 (not used) (not used)
4 16 MEAS-active A measurement is in progress.
5 32 WTG-meas The instrument is waiting for a TRIGger for the measurement (ACQuire) trigger subsystem.
6 64 WTG-tran The instrument is waiting for a TRIGger for the TRANsition trigger subsystem.
7 128 (not used) (not used)
8 256 CV The instrument is in constant voltage (CV) output mode
9-15 512 to 32,768 (not used) (not used)
Questionable Status Group
These two register groups record signals that indicate abnormal operation. The bits in this register
may indicate problems with acquired data. The group consists of a Condition, PTR/NTR, Event, and
Enable register. The outputs of the Questionable Status group are logically OR-ed into the
QUEStionable summary bit (3) of the Status Byte register. See Status Registers for a description of
each register.
Bit Value Bit Name Description
0 1 OV (Overvoltage Protection) Output is disabled by the overvoltage protection
1 2 OC (Overcurrent protection) Output is disabled by the overcurrent protection
2 4 HWF Output is disabled by hardware failure
3 8 LV Low voltage detected
4 16 OT Output is disabled by the overtemperature protection
5 32 WDOG Watchdog protection (caused by no SCPI IO activity over specified time)
6 64 (not used) 0 is returned
7 128 (not used) 0 is returned
8 256 CAL Calibration failure
9 512 OP Overpower protection
10 1024 CL-PEAK Current Limit on PEAK (overload state)
11 2048 PL Power limit (overload state)
12 4096 CL-RMS Current Limit on RMS (overload state)
13 8192 SF Sense Fault protection
14 16384 MEAS-OVLD Measurement overload detected
15 32768 (not used) 0 is returned
Keysight AC6800B Series Operating and Service Guide 103
3îîSCPI Programming Reference