Automation System
In the operation of a programmable controller:

all of the logic status is maintained in memory
All of these
any latched data must be done using an external latching relay
mathematics cannot be performed
None of these

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Automation System
What is offset error?

All of these
the difference between the control setpoint value and the actual value.
the difference between the controller output and the setting of the manipulated variable.
the difference between the sensor input and the absolute sensed parameter.
None of these

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