PLC在电气自动控制中的应用

随着电气控制技术的发展和计算机技术的广泛应用，单片机逐渐取代传统逻辑开关，但是单片机技术复杂，编程难度高。而可编程控制器，它以控制功能强大，通用性好，编程简单易操作，控制稳定等特点正在成为电气自动控制系统中重要的开关量逻辑控制元件，并结合，声、光、电、液等信号采集元件和变频伺服技术成为电气自动控的核心部件。

The Application of PLC in the Electrical Automatic Control

With the development of the electrical control technology and the wide application of computer technology, single-chip microcomputer gradually replaces traditional logical switch,but microcontroller technology is complicated and is difficult to be programmed.Whereas,programmable controller has advantages such as powerful controlling function,good generality,simple programming and stable.It has become an important switch logic control element in electric automatic control system,it also becomes the core part of electrical automatic control which combines with sound,light,electricity,liquid.