Programmable Logic Controller (PLC): 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 controlling programming language. Data manipulation instructions: Data manipulation instructions enable the numerical data that exists in the controller’s memory to be performed within the control program. Data manipulation instructions allows manipulation of data that is stored in either single or multiple words groups. It also includes the transfer of data from one data memory area of the PLC to another. In order to accomplish data manipulation, there are mainly two different kinds of instructions. Instructions which operate on word data. Instructions which operate on file or block. It also provides great flexibility to program control circuits.

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Chapter 10, Problem 3RQ

Program Plan Intro

Programmable Logic Controller (PLC):

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 controlling programming language.

Data manipulation instructions:

Data manipulation instructions enable the numerical data that exists in the controller’s memory to be performed within the control program.

Data manipulation instructions allows manipulation of data that is stored in either single or multiple words groups.

It also includes the transfer of data from one data memory area of the PLC to another.

In order to accomplish data manipulation, there are mainly two different kinds of instructions.

Instructions which operate on word data.

Instructions which operate on file or block.

It also provides great flexibility to program control circuits.

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