可编程控制器通信技术的研究与实现

Research and Implementation of Programmable Controller Communication Technology

随着计算机技术、半导体技术以及控制技术的不断升级,越来越多的自动化控制系统被应用到工业生产中,逐渐形成数字化的自动控制系统。可编程控制器(PLC)界定了控制系统里的用户层运用,展现了所实施的基本控制功能,是每个设备控制方法的关键。本文介绍了PLC的控制原理及控制系统,研究设计了UDP和TCP通信功能。在UDP通信应用中能实现文件格式数据的推送与接收,在TCP通信应用中完成了主动与被动接受通信方式,并且在这2种通信模式中都能实现数据的推送和接收。

With the continuous upgrading and development of computer technology,semiconductor technology and control technology,more and more automatic control systems are applied to industrial production,gradually forming a digital automatic control system.Programmable controller(PLC)defines the user layer application in the control system,showing the basic control function implemented,which is the key to each device control method.This paper describes the control principle and control system of PLC,and then the UDP and TCP communication functions are studied and designed.Push and reception of file format data can be realized in UDP communication applications,active and passive reception communication modes can be completed in TCP communication applications,and data push and reception can be realized in these two communication modes.