Design of PLC based Elevator Control System

Abstract

This paper describes Programming Logic Controller (PLC) based elevator control system.An elevator is one of the important aspects in electronic control module in automotive application.The system mainly focuses on using PLC to control the circuit and building the elevator model.Proximity sensor is used to detect the metal.DC motor is used to control up and down movement of the elevator car.Push buttons are used to call the elevator car.The elevator position is described by using the display unit.Arduino UNO is used to drive the seven segment display unit.Ladder Diagram is used for four floors control system.PLC gives the command to the relays.Relays operate the DC motor in forward direction and reverse direction.Based on this relay operation, elevator is move up and down.