Programmable Logic Controller (PLC): Programmable Logic Controller (PLC) is a specialized computer used in industrial segments to control machines and process. PLC is programmable that consists of a set of instructions which resembles the controlling functions needed to perform specific tasks. The function of PLC is similar to that of a relay and hence, in an industrial segment a relay is greatly replaced by a suitable PLC. When compared to general Personal Computer (PC), a PLC is available in small and tiny sizes. The basic architecture of a PLC consists of an input-output interface module and a small Central Processing Unit (CPU) that run by control programming language.

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Chapter 2, Problem 33RQ

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Programmable Logic Controller (PLC):

Programmable Logic Controller (PLC) is a specialized computer used in industrial segments to control machines and process.

PLC is programmable that consists of a set of instructions which resembles the controlling functions needed to perform specific tasks.

The function of PLC is similar to that of a relay and hence, in an industrial segment a relay is greatly replaced by a suitable PLC.

When compared to general Personal Computer (PC), a PLC is available in small and tiny sizes.

The basic architecture of a PLC consists of an input-output interface module and a small Central Processing Unit (CPU) that run by control programming language.

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