The input device used for PLC is

Q. The input device used for PLC is

A

Sensors

B

Alarms

C

Relays

D

All the above

Solution:

There are two main types of inputs: data inputs from devices and machines, and data inputs that are human-facilitated. The input data from sensors and machines are sent to the PLC.
Inputs can include on/off states for things like mechanical switches, buttons, and encoders.

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