The Design Of Ship Main Engine Remote Control System Based On PLC

Ship diesel engine remote control system is an important sign of modern diesel.And realizing the unmanned machinery space，it becomes one of the most mainfactors. Diesel engine remote control system is sort of remote control equipment. Shipmain engine remote control system utilizes automatic equipment to control the mainengine over a long distance in bridge or engine control room. To ensure the reliabilityof main engine there are many insurances are adopted which can avoid mistakes,relieve labor intension and improve the work condition. The main engine remotecontrol system includes pneumatic remote control system, electricity-gas combinedremote control system and microcomputer remote control system. Because of the highreliability, high anti-jamming, convenient installment and programming, lower priceand long lifetime, Programmable Logic Controller (PLC) is widely used inmanufacture and marketplace. Its input and output is more near to local equipmentand needs litter inter-parts and interfaces such as relays and thrusters. The upper endis microcomputer and PLC is widely used in ship systems.Based on the widely used electricity-gas combined main engine remote controlsystem Autochief-Ⅲ, by using PLC, the circuit is simplified and the reliability isimproved.Development and current status of the papers on the ship remote control system,remote control system characteristics, classification of the initial research. By thecorresponding software and hardware design, the remote control system has beentransformed. Paper use the automated widely used in the field of Siemens S7-200PLC to replace the industrial computer controller parts, and the use of programmablecontroller programming software STEP7V5.3host Autochief-Ⅲ remote controlfunctions upgrading the main including start, repeated start, restart, normalcommutation, emergency change, brake, parking and other logic control car so thatthe sender, the acceleration rate, the program loads, the critical speed avoidance. Onthe software design, the SIMATIC STEP7MICRO/Win32V4is used in the ladderdesign.Siemens S7-200, especially the use of the analog signal processing and numbercrunching instructions with the reference value, to improve the ship automationsystems used for many years abroad with some guiding significance.