Chapter 2 83
Programming Fundamentals
Using the Instrument Status Registers
Operation and Questionable Status Registers
The operation and questionable status registers are registers that
monitor the overall instrument condition. They are accessed with the
STATus:OPERation and STATus:QUEStionable commands in the
STATus command subsystem.
Operation Status Register
The operation status register monitors the current instrument
measurement state. It checks to see if the instrument is measuring,
calibrating, sweeping, waiting for a trigger, or what?
Questionable Status Register
The questionable status register monitors the instrument to see if
anything questionable has happened. 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.
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