基于Lonworks技术的变电站远动终端的设计

本文介绍了一种基于Lonworks技术的变电站变电站远动终端装置的设计,重点讨论了Lonworks技术在装置中的应用,并提出了主要软件和硬件的设计方案。Lonworks技术体现在装置的Lonworks接口模块中,其核心器件是神经元芯片CY7C53120E2和32位单片机MC68332,神经元芯片具备通信与控制功能,并且固化了7层通信协议,NeuronC语言使得程序编写简单。神经元芯片实现单片机与Lonworks节点的通讯,单片机通过与神经元芯片并行口交换令牌将Lonworks总线上各节点传来的数据转换,再经过以太网控制器送入以太网中。

Design and application of the remote terminal unit device based on Lonworks technique

This paper introduces a kind of design for the remote terminal unit device in transformer substation based on lonworks technique. It describes the application of Lonworks technique used in device in detail. And it puts forward the main design project of software and hardware. Lonworks technique applies to Lonworks interface module. Neuron Chip CY7C53120E2 and MC68332 are nucleus of Lonworks interface module. Neuron Chip which contains LonTalk protocol in all seven lays has the function of communication and control. The application of Neuron C programming language gives programmers convenience. Neuron Chip is a communication bridge between MC68332 and Lonworks BUS. It controls ISA Ethernet controller and passes token with Neuron Chip by parallel I/O interface, then transforms datum from nodes in Lonworks BUS and transfers them to ISA Ethernet. The Lonworks technology improves communication performance of original control networks.