轧钢精整收集区自动控制系统高速通讯网络的改进及实践

Improvement and Practice of High Speed Communication Network of Automatic Control System in Finishing Collecting Area in Steel Rolling Plant

本文针对首钢水钢轧钢厂棒材（第三棒材）生产线精整收集区自动控制系统的高速通讯网络（PROFIBUS—DP）突然掉站（数据丢失），引起冷床和精整区域电气设备控制回路瞬间跳闸（随后恢复正常），造成轧线冲钢，生产线故障停机，通过对网络连接方式改进，技术和系统抗干扰性能提高，解决了制约生产的“隐形杀手”，为水钢钢材全年生产目标提前完成做出了贡献。

Sometimes unpredictable sudden breakdown （data loss） of high speed communication network （PROFIBUS-DP） of automatic control system in finishing collecting area of No.3 rebar rolling line in Steel Roiling Plant of Shuigang causes instantaneous trip of control circuit of electrical equip- ment in cooling bed and finishing area to result in steel-heaping and mechanical failure in rolling line, therefore network connection methods are improved so that the anti-jamming ability of the auto-matie control system is enhanced and hidden dangers restricting production are eliminated in favor of ahead fulfillment of annual production task of steel in Shuigang.