RS485,Filedbus And Distribution Watch System

Fieldbus is a bidirectional,seral, digital communication system. Fieldbus is driving a new technology revolution of whole automation. This paper introduce fieldbus causation, idea, structure system ,characteristic and develop actuality. On this basic, it come out RS485,BITBUS application casus to distribution watch system. This system make up real time watch system and data manage net system by BITBUS communication to complete detract check and focus show function of high\low electric power parameter. It take on task of background communication and proscenium data manage. They are work together. The blue print has applied in distribution watch system of a motor factory. This paper also advance possibility to fuse some fieldbus systems,because now fieldbus has not unite standard and need in fact. The paper view fieldbus development in our country.