LonWorks 总线技术是一种控制网络技术,它的基本控制单元-神经元芯片NERUN 芯 片,同时具备了通讯与控制功能,在其中固化了OSI 参考模型所定义的全部七层服务的通讯协议,具有开放性与互操作性的优点。本文着重介绍基于神经元芯片(Neuron TMPN 3150)的系统扩展方法,提出了三种不同的系统扩展模型。 关键词:LonWorks 总线,接口,系统扩展 LonWorks Controller System Design method Si dongsen Xidian University, computer collegeJiang yunsheng China aero computer institute [abstract] LonWorks technology is a kind of control network , Neuron chip TMPN 3150 is it’s controller. it can be used as communication controller and control unit . Neuron TMPN 3150 can provides all seven layer communication services of ISO/OSI model. It is good at it’s openning and inter operation performance. we will introduce something about how to use Neuron chip TMPN3150 to expance a system ,supply three different system expanding model Key word : Lonworks Bus , interface, system expanding