Motor ON/OFF application using retentive timer and retentive timer instruction of the PLC.

Motor ON/OFF application using retentive timer and retentive timer instruction of the PLC.

Problem Description

Motor ON/OFF application using retentive timer and retentive timer instruction of the PLC.

Problem Diagram

The retentive timer is used to store the time in the application.This timer will be ON when input status changes from 0 to 1.

Here we used retentive timer for the application because we want to store the time or hold the timer.

Even if input signal state changes from 1 to 0 , time will not become zero but timer will accumulate the time.

And when delay is completed , motor will be ON.

In case of PLC take NO contact of the switch and provide retentive timer before output coil (here motor).

When we start switch retentive timer will be start and switch is OFF, it will accumulate the time.

And after delay motor will be ON.

What is PLC?.

What is PLC?.

A  PLC (PROGRAMMABLE LOGIC CONTROLLER) may be a solid state system that unceasingly monitors the standing of devices connected as inputs.

Based on a user program, hold on in memory, it controls the standing of devices connected as outputs.

A digital device that uses a programmable memory to store directions and to implement specific functions such as logic, sequence, timing, count and arithmetic to manage machines and method.

It uses a programmable memory to store the directions and specific functions that embody On/Off management, temporal order count, sequencing, arithmetic and knowledge handling.

A PLC may be a pc designed to figure in Associate in nursing industrial atmosphere.