【摘要】 由于使用方便,运行可靠,可编程序控制器(PLC),特别是具有网络通信功能的PLC在自动化系统中得到了广泛的应用。本文结合热电厂冷却循环水系统自动化改造,介绍了应用这种有网络通信功能的PLC及其相关监控软件组成的控制系统的情况。更多还原

【Abstract】 The programmable logic controller(PLC) especially with network communication capabilities are widely used in automation systems,because of its easy use and reliable operation.This article introduces the control system composed of such kind of programmable logic controllers and related monitoring software,which is successfully used in the cycling water automation renovation system in the heat and power plant.更多还原