SCPI Status Registers 2
Keysight U2722A/U2723A Programmer’s Reference 23
Questionable Status Registers
These registers record signals that indicate abnormal operation. The group 
consists of the same register types as the Operation Status group. The outputs of 
the Questionable Status group are logically-ORed into the QUEStionable 
summary bit (3) of the Status Byte register.
Bit Definitions: Questionable Status Registers
– Once a bit is set, it remains set until cleared by reading the event register or 
the clear status (*CLS) command.
–The STATus:PRESet command will clear all bits in the enable register. This 
command presets the Questionable Status registers.
Bit number Decimal value Definition
0 to 3 Not Used 0 0 is returned.
4 OT 16 The over-temperature protection has tripped.
5 to 15 Not Used 0 0 is returned.