Chapter 6 341
Using The Status Monitoring Subsystem
Questionable Status Register
Using The Status Monitoring
Subsystem
Questionable Status Register
The questionable status register monitors the instrument’s condition to see if anything
questionable has happened to it. It is looking for anything that might cause an error or a
bad measurement like a hardware problem, an out of calibration situation, or a unusual
signal. All the bits are summary bits from lower-level event registers.
Bit Condition Operation
5 Frequency summary The instrument hardware has detected an unlocked
condition or a problem with the external frequency
reference.
9 Integrity summary The instrument hardware has detected a signal
integrity problem. The signal amplitude may be too
high.
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