Modernization of Wagon Tippler using PLC

Abstract

This paper proposed for modernization of electrical relay logic based wagon tippler by Programable logic controller(PLC).By using PLC hardwired electrical relay logic is replaced by ladder logic.Relay based contorl system take much time for fault findingHardware dependency also a constrain . PLC facilitate for accurate break down analysis, very easy modification and monitroing of system.Nowadays nobody do logic with relays but everything is done in a plcs or similar �computers�. And plcs can can also use analog values and implement very sophisticated logic.