Programmable Logic Controller (PLC): Programmable Logic Controller (PLC) is a specialized computer used in industrial segments to control machines and process. PLC is program 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 runs by control programming language. PLC counter: A counter is a PLC instruction which counts up or down when the input transfers from an off state (false) to an on state (true). The three different types of counters instructions are as follows: Up counter Down counter Combined counter

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Chapter 8, Problem 10RQ

Program Plan Intro

Programmable Logic Controller (PLC):

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

PLC is program 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 runs by control programming language.

PLC counter:

A counter is a PLC instruction which counts up or down when the input transfers from an off state (false) to an on state (true).

The three different types of counters instructions are as follows:

Up counter

Down counter

Combined counter

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