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在洗煤设备控制领域,长期以来,都是采用传统的继电器控制系统,继电器控制系统在很长的时间里,也为洗煤产业做出巨大贡献,但随着社会经济的高度发展和科学技术的日新月异,以及由此产生的对洗煤产业的更高的要求,使得传统的继电器控制系统越来越不能适应社会的发展,也越来越不能满足经济的发展对精煤需求的高速增长,自从PLC(Programmable Logic Controller),即可编程逻辑控制器在世纪在美国出现以来,迅速取代传统的继电器在控制领域的统治地位,在洗煤产业也不例外,PLC的普及应用,大大促进洗煤设备控制领域的发展,笔者就以PLC在洗煤设备控制系统改造中的应用为例,对PLC加以探讨。
In the field of coal washing equipment control, the traditional relay control system has long been used. The relay control system has made a great contribution to the coal washing industry for a long time. However, with the rapid socio-economic development and the rapid progress of science and technology , And the resulting higher demand for the coal washing industry, making the traditional relay control system more and more unable to adapt to social development, more and more unable to meet the economic development of the rapid growth of coal demand, since the PLC ( Programmable Logic Controller (PLC), that is, the programmable logic controller has rapidly replaced the traditional relay in the field of control since the advent of the century in the United States. It is no exception in the coal washing industry. The popularization and application of PLC greatly promoted the development of coal washing equipment control field , I will PLC in the coal washing equipment control system in the transformation of the application, for example to discuss the PLC.