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可编程控制器是近年来在微电脑普及应用的基础上发展起来的一项新技术。它以高可靠性、编程简单、使用方便等显著特点,在工业控制各个领域获得广泛的应用。PC的种类很多,功能各异,编程方法也多种多
Programmable controller is a new technology developed on the basis of the popularization and application of microcomputer in recent years. It has high reliability, simple programming, easy to use and other notable features, obtained in a wide range of industrial control applications. Many types of PC, different functions, programming methods are many and many more