工控主从网络远地主机互为热备份的研究

DATA HOT BACKUP OF REMOTE MASTER COMPUTERS ON MASTER SLAVE NETWORK

在工业控制系统中主从网络有相当多的应用，主从网络上主机一旦损坏整个网络就会陷入瘫痪；而网络上可以作为主机的计算机往往不止一台，本文提出一种新的方法可以让这些不是主机的计算机在主机损坏时能自动有序的接管网络的管理权，使网络能正常运转下去。

Master slave network is widely used in the control system in industry.The whole network would be broken down if the master computer was malfunctional.A new method is introduced in this paper.By using this method,one of those non master computers,can automatically replace the master computer to administer the network when the master computer is not working properly.This method has been proved successful by the experiment in our laboratory.