Automation System
A process controller:

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

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Automation System
A common data base is one requisite for converting CAD and CAM to CIM. Another is that:

there should be a common 3-D part description system.
technical assistance must be provided to the user.
None of these
the system must make provision for new techniques.
the user must have access to both hardware and software

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