摘要
介绍基于Modbus协议的主从分布式EPS应急电源监控系统。系统采用一台PC作为上位机,下位机由若干台P89C51单片机担任,上位机向串口读写数据,通过485总线将控制信息送到现场的每台EPS设备,监控网络上任何一台EPS设备。通过Modbus协议,控制器相互之间、控制器经由网络和其他设备之间实现通信,以及实现计算机与应急能源设备之间的通信软件。同时为保证系统的可靠性,提出了系统抗干扰解决办法。
This article introduces master- slave distributional mode EPS emergency power supply supervisory system which based on the Modbus protocol. The system uses PC as upper computer, the lower computer holds the post by certain P89C51 micro controller unit, upper computer read or write the data to the serial port, the control information will be delivered to the scene of each EPS equipment through 485 bus to monitor any a EPS equipment on network. Through the Modbus protocol,communications can be brought into effect among the controllers, between the controller by way of the network and other equipment, as well as realize communications software between computer and emergency energy equipment. Meanwhile propose the solution of system anti -jamming to guarantee the reliability of the system.
出处
《现代电子技术》
2007年第21期150-152,共3页
Modern Electronics Technique
基金
湖南省教育厅科技资助项目(07C148)
