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可编程序控制器(PLC)作为现代工业控制的三大支柱之一,是随着现代社会生产的发展和技术进步,现代工业生产自动化水平的日益提高及微电子技术的飞速发展,在继电器控制的基础上产生的一种新型的工业控制装置,是将微型计算机、自动化技术及通信技术融为一体,应用到工业控制领域的一种高可靠控制器,是当代工业生产自动化的重要支柱。本文详细地阐述PLC的兴起、在工业自动控制中的地位及现状分析,根据其发展的几个特点展望它的发展趋势。
As one of the three pillars of modern industrial control, programmable logic controller (PLC) is one of the three pillars of modern industrial control. With the development of modern society and technological progress, the increasing automation of modern industrial production and the rapid development of microelectronic technology, A new type of industrial control device based on microcomputer is a kind of high reliability controller that integrates microcomputer, automation technology and communication technology into the field of industrial control. It is an important pillar of the contemporary industrial automation. This article elaborates the rise of PLC, its status and status quo in industrial automatic control and its development trend based on several characteristics of its development.