摘要
介绍了PLC与上位机通信的三种方式,针对小型控制系统提出了高性价比的自由口通信模式,重点说明S7-200系列PLC与上位机通信的实现方法。从硬件配置和软件编写两个方面阐述该通信方式的形式简单、工作可靠,已在许多领域得到应用。
Introduces three methos of PLC and upper computer communication.Accoding to small control system,the high-performance-price ratio free communication model is proposed.The realization method of S7-200 series and upper communication are explained in details.The communication ways are introduces from hardware allocation and software.It proves simple,reliable and has been applied in many areas.
出处
《煤矿机电》
2012年第2期68-70,共3页
Colliery Mechanical & Electrical Technology
关键词
PLC控制器
上位机
通信
控制
PLC controller
host computer
communication
control
