Agilent Technologies N1996A-503 User Reference page 353

Questionable Status Summary bit (bit3) in the Status Byte Register. The variable
<integer> is the sum of the decimal values of the bits you want to enable.
NOTE: The preset condition is all bits in this enable register set to 0. To have any
Questionable Events reported to the Status Byte Register, one or more bits need to be set
to 1. The Status Byte Event Register should be queried after each measurement to check
the Questionable Status Summary (bit 3). If it is equal to 1, a condition during the test
may have made the test results invalid. If it is equal to 0, this indicates that no hardware
problem or measurement problem was detected by the analyzer for the condition bit(s)
enabled.
Mode
Remote Command
Example
Preset
Min
Max
SCPI Status Bits/OPC
Dependencies
Questionable Event Query
This query returns the decimal value of the sum of the bits in the Questionable Event
register.
NOTE
The register requires that the associated PTR or NTR filters be set
before a condition register bit can set a bit in the event register. The
data in this register is latched until it is queried. Once queried, the
register is cleared.
Mode
Remote Command
Example
Preset
SCPI Status Bits/OPC
Dependencies
Chapter 7
IEEE and STATus Commands (Remote Commands Only)
All modes
:STATus:QUEStionable:ENABle <integer>
:STATus:QUEStionable:ENABle?
STAT:QUES:ENAB 32 Sets the register so that the Frequency
summary will be reported to the Status Byte Register.
0
0
32767
Sequential command
All modes
:STATus:QUEStionable[:EVENt]?
STAT:QUES?
0
Sequential command
Agilent CSA STATus Register Model
353