Automation System
A sequence controller:

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

ANSWER DOWNLOAD EXAMIANS APP

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

ANSWER DOWNLOAD EXAMIANS APP