可编程逻辑控制器(PLC)在冶金行业中,被广泛的运用,它能够同时完成数据的输入、输出、处理、显示、储存、管理、逻辑控制、模拟量控制以及通讯等功能,并且还具有一定的灵活性、编程操作相对简单以及可靠等特点,本文在研究冷轧机控制系统时,充分的运用了PLC功能。 Programmable Logic Controller (PLC) is widely used in the metallurgical industry. It can simultaneously input, output, process, display, store, manage, logic control, analog control, and communicate data. It also has A certain degree of flexibility, the programming operation is relatively simple and reliable and so on, this paper fully utilizes the PLC function in the research of cold rolling mill control system.