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. Given: The following motor control specifications must be satisfied by the ladder logic program. Each starter must operate from its own start/stop pushbutton station to wire three starters. A master stop station is included, which will trip out all of the starters when pushed. All pushbuttons must be wired by one set of Normally Open (NO) contacts. An overload on any one of the starters will automatically drop all the starters by programming overload relay contacts.

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Chapter 6, Problem 8P

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.

Given:

The following motor control specifications must be satisfied by the ladder logic program.

Each starter must operate from its own start/stop pushbutton station to wire three starters.

A master stop station is included, which will trip out all of the starters when pushed.

All pushbuttons must be wired by one set of Normally Open (NO) contacts.

An overload on any one of the starters will automatically drop all the starters by programming overload relay contacts.

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