Research Of LonWorks Technology In The FCS Experiment System

With the development of the economy, microelectronic technology , computer technology and the automatic theory are developed rapidly, Field-bus are new businesses appearing in recent years. It is a new type of data bus, which can communicate between many intelligent measuring and controlling devices in a serial double multi-node digital way, also known as basic controlling network for opening, digital and multi-node communicating.LON is a Local Operating Networks put forward by control. For supporting the LON, Echelon Corporation designs a suit of platform , that is called LonWorks technology.First, this paper discusses basic concept of fieldbus. After introducing the basic theory of fieldbus, background of putting forward the task and the author's main work, it reviews briefly the develop course of the fieldbus, introduces the advanced character of fieldbus and puts forward the prospect of the core technology of LonWorks, including Neuron Chip, firmware of Neuron Chip, software system of Neuron c, usual LonWorks development tools, discusses the theories of interoperability and the methods of realizing the interoperability by Echelon Corporation. And the thesis studies Lonworks' technology of integration and their work mechanism , according to practical control system this kind of integration technology of fieldbus above is described in detail.in this base , We built a fieldbus experiment system .Difference kinds of bus can communication with each other by OPC technology . Reach the aim of all the bus can be organized in a unit . After built this system , we modified the algorithm of minimum waiting time is suggested by presenting the minimum waiting time algorithm in Multi-elevator experiment system.