Automation System
A programmable controller:

All of these
None of these
allows faster machine checkout
is easier to troubleshoot than standard relay logic
both (a) and (b)

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Automation System
Trend analysis:

is used only in financial planning
can improve control system response
None of these
requires a very expensive system to implement
is a brand new concept

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Automation System
Today, programmable controllers:

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
All of these
are more powerful then the first controllers on the market

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Automation System
Relay ladder logic is used in a PC because:

it is the best industrial control language ever developed.
most industrial control personnel are familiar with relay ladder logic diagrams and this is the easiest for them to use
it is impossible to write a control program for a machine in any other logic
None of these
All of these

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