【摘要】 随着变电站综合自动化水平的提高,对通讯系统的要求也日益提高。本文首先比较了以太网与令牌环网,同时阐述了以太网的优越性。然后根据不同传输速率的以太网控制器给出不同的布线结构,实现32个数据采集节点每秒1200次数据采集的实时通讯。更多还原

【Abstract】 As the improvement of the substation synthesizing automation, the requirement for communication system increases day by day. This paper compares Ethernet and token loop network, and explains the superiority of Ethernet at the same time. It also gives out different wiring structures according to the Ethernet controllers of different transfer rates, to realize real-time communications of thirty-two data sampling nodes with data acquisiting at a speed of 2 000 times per second.更多还原