Automation System
A sequence controller:

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

ANSWER DOWNLOAD EXAMIANS APP

Automation System
A process controller:

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

ANSWER DOWNLOAD EXAMIANS APP