小心PLC程序中的隐形炸蛋

Be Careful of Invisible Mine in PLC Program

介绍了长钢高炉TRT余热发电的一次CPU停机事故。叙述了事故经过和处理办法,总结了西门子PLC关于类似错误处理办法和解决思路。

This paper introduces a CPU shutdown accident of TRT waste heat power generation in blast furnace of Changgang,and describes the accident process and handling methods,and summarizes the similar error handling methods and solutions of Siemens PLC.