The Forcing Function of a PLC Allows the User to Turn

question 37

Multiple Choice

The forcing function of a PLC allows the user to turn an external input or output on or off:

• A)according to the forced program.
• B)according to the main program.
• C)from the keyboard regardless of its actual status.
• D)all of these.

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Deoxyribonucleic acid, a self-replicating material present in nearly all living organisms as the main constituent of chromosomes, carrier of genetic information.

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A trait or characteristic that increases an organism's likelihood of survival and reproduction in its environment.