Elevator control system by using PLC

Instrumentation and control engineering

In this paper we are designing and constructing three level elevator control system and increases its steady state & stability by using a programmable logic controller (Allen Bradley Micrologix-1400 BXBA) the software used for communication is RSLogix-500/5000 PLC’S are useful in industrial automation where number of equipments are replaced by contactor and switches. Elevator is nothing but the vertical transportation device which is used to transfer the goods and peoples limit switch is used for the floor indication. The limit switch is used for positioning of floor and the Direct Current (DC) motor is used for movement of elevator cabinet. Electromagnetic relay is used in control circuit to control elevator in upward and downward direction .As the India is developing country and there wide increase in high rise buildings and malls and elevator is integral part of infrastructure by implementing such projects we can reduce the human efforts , accident due to breakage of rope , efficiency and speed of elevator is improved .Even the time can be consumed by using such system. This paper mainly concentrate on programmable logic controller to control the circuit and building the elevator model for smooth operation of elevator.

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