Agilent Technologies ESA-E Series Programmer's Manual page 295

Language Reference
STATus :QUEStionable Subsection
Questionable Enabl e
STATus :QUEStionable :ENABle <number >
STATus :QUEStionable :ENABle ?
This command determines which bits in the Questionable Conditio n
Register will set bits in the Questionable Event register, which also set s
the Questionable Status Summary bit (bit3) in the Status Byt e
Register. The variable <number> is the sum of the decimal values of the
bits you want to enable .
NOTE
The preset condition is to have all bits in this enable register set to 0 . To
have any Questionable Events reported to the Status Byte Register, 1
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 made th e
test results invalid . If it is equal to 0, this indicates that no hardwar e
problem or measurement problem was detected by the analyzer.
Factory Prese t
and *RST : 0
Range : 0 to 3276 7
Questionable Event Query
:STATus :QUEStionable[ :EVENt] ?
This query returns the decimal value of the sum of the bits in th e
Questionable Event register.
NOTE
The register requires that the equivalent PTR or NTR filters be se t
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
data is cleared .
Questionable Frequency Conditio n
STATus :QUEStionable :FREQuency :CONDition ?
This query returns the decimal value of the sum of the bits in th e
Questionable Frequency Condition register .
NOTE
The data in this register is continuously updated and reflects th e
current conditions.
Chapter 5 5-135