100T转炉PLC系统通讯线路改造

Transformation of Communication Line for PLC System of 100T Converter

本文介绍了转炉PLC现场总线通讯系统,讲述了针对PROFIBUS-DP通讯网络出现问题后进行的优化改进。通过改变网络站点连接方式,实现缩短网络长度和站点数,提高抗干扰能力;按工艺要求增加新的DP总线支路,缩短总的网络通讯线路来提高系统的稳定性,减少通讯异常对整个系统的影响,使PLC系统运行稳定。

This paper introduces the converter PLC field bus communication system, and describes the optimization and improvement of PROFIBUS-DP communication network. By changing the connection mode of network stations, the network length and the number of stations can be shortened and the anti-interference ability can be improved. Add new DP bus branch according to the process requirements, shorten the total network communication lines to improve the stability of the system, reduce the impact of abnormal communication on the whole system, so that the PLC system runs steadily.