The Design Of Remote Control Of Ship's Main Engine Based On PLC

Nowadays, the main engine remote control system is a very important part of the engine room automation. There are multifarious means adopted in the main engine remote control system. This paper introduces the system to implement the function of the main engine remote control based on the PLC industrial controlling network. This system has the characteristics of good economic performance, simple hardware circuits, safety and credibility in work.The main purpose of this thesis is to utilize S7-200 PLC; which is extensive used in automation field and recognized by Ship's Classification Societies of all nations, instead of computer control parts, to carry out all control functions of the main engine remote control system. The functions include logic controls such as normal starting, The functions include logic controls such as normal start, restart, heavy start, normal change, emergency change, brake, stop etc. speed controls such as accelerating rate, program load, critical speed limit etc. Finish the main engine remote control system about hardware and software design of nucleus controllers.The main engine remote control system employ sufficiently the technology of S7-200 PLC and has the high module construction, university and interchange property. This makes us to use ship control and manage center easily.This paper contains five parts. The first part introduces the composing and function of the main engine remote control system. The second introduces its principle. The third introduces the hardware requirements of the main engine remote control system. The forth is software. The last part shows how to carry out this project by experiment.