Automation System
A process controller:

can interface to digital and analog I/O
None of these
is useful in a continuous process control application
can solve a PID process control equation easily
All of these

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Automation System
A sequence controller:

is a mechanical only controller
is difficult to program
is no longer in widespread use
None of these
performs on/off control functions in relation to time.

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Automation System
Vision sensors:

can not improve much in the next decade
will more closely match the capabilities of the human eye
None of these
will remain very costly
All of these

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