Automation System
The device that assembles groups of characters into complete messages prior to their entering the CPU is called:

an editor
an interpreter
None of these
a compiler
a communications processor

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Automation System
What is offset error?

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

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Automation System
What is proportional control?

All of these
The controller output varies continuously over a range
The gain is independent of offset error.
None of these
It has a discrete output for each error value

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