Analysis And Implementation Of Hse Fieldbus Protocol System

With the fast development of computer technology, micro-electronics and communication technology,the signal transmission in the industry has transformed from the analog one to the digital one. This enhances the interdevice communication,and therefore a new technology-fieldbus come into existence.Fieldbus is a communication network used to interconnect field devices such as intelligent measurement instruments,control devices,executive machines.The presence of fieldbus changes the system framework formed by the traditional field instruments.One of two main charateristics of fieldbus is its realization of digital communication, the other one is its full openness to all. They have promoted the development of the industrial control systems greatly.This thesis puts forward the implementation of the fieldbus protocol in the view of the general communication protocol.And the technological difficulties during our work are particularly discussed.In the first chapter, the history, the status and the trend of the Fieldbus technology are introduced, and some of the Fieldbus are described.In the second chapter, the architecture of the FF fieldbus is discussed,and we compare the HI and HSE standard and analyze the System Management of HSE Fieldbus carerully.In the third chapter,some difficulties encountered in our work are discussed.In the fourth chapter,the software development of the protocol is presented.In the fifth chapter,the methods to test the protocols are discussed.And in the last chapter we discuss the relations of fieldbus and embedded systems.