浅谈PLC控制系统在选矿中的应用

自二十世纪六十年代美国推出可编程逻辑控制器（Programmable Logic Controller，PLC）取代传统继电器控制装置以来，PLC得到了快速发展，在世界各地得到了广泛应用。同时，PLC的功能也不断完善。随着计算机技术、信号处理技术、控制技术网络技术的不断发展和用户需求的不断提高，PLC在开关量处理的基础上增加了模拟量处理和运动控制等功能。今天的PLC不再局限于逻辑控制，在运动控制、过程控制等领域也发挥着十分重要的作用。通过在选矿工艺中PLC控制的可靠性方面所遇到的情况进行分析，给出提高其可靠性的具体措施。

Discussion on PLC control system application in mineral processing

Since the nineteen sixties USA programmable logic controller （ Programmable Logic Controller, PLC ） to replace the traditional relay control device since, PLC has been rapid development, has been widely used in the world. At the same time, the function of PLC is continuously improved. With the development of computer technology, signal processing, control technology and the continuous development of network technology and the increasing demand of users, PLC in switching signal processing based on the increase of analog processing and motion control and other functions. Today PLC is no longer confined logic control, in the motion control, process control and other fields also plays a very important role. The mineral processing technique in PLC control reliability encountered situation carries on the analysis, are given specific measures to improve the reliability of the.