Automation System
What is offset error?

None of these
the difference between the sensor input and the absolute sensed parameter.
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.

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Automation System
Today, programmable controllers:

All of these
can be cost effective even when replacing just a few relays
None of these
are relatively low cost compared with the original digital equipment available for industrial control
are more powerful then the first controllers on the market

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