摘要
对变电站中的保护接入通讯装置的设计进行了简要的介绍 ,主要讨论了 L onworks技术在装置中的应用。L onworks技术体现在装置的 L onworks接口模块中 ,其核心器件是 3 2位 MC683 3 2单片机和神经元芯片CY7C5 3 12 0 E2 ,神经元芯片具备了通信与控制功能 ,并且固化了 ISO/OSI的全部 7层通信协议 ,Neuron C语言使得程序编写简单。处于 slave B模式的神经元芯片实现 MC683 3 2与 L onworks节点通讯 ,处于 master模式下的 MC683 3 2通过与神经元芯片并行口交换令牌将 L onworks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 ,解决了原有控制网络通信速度慢。
A proctection insert communication device in transformer substaction is described. It describes the application of Lonworks technique used in device in detail. Lonworks technique applies to Lonworks interface module. MC68322 and Neuron Chip CY7C53120E2 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 in slave B mode 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 Ethemet. The Lonworks technology improves communication perormance of original control networks.
出处
《电气传动》
北大核心
2004年第5期36-39,共4页
Electric Drive
