基于Internet的PLC远程在线访问实训室的构建

The construction of remote online access to PLC laboratory based on internet

介绍了基于Internet技术的PLC远程在线访问实训室的构建。该实训室采用工业通讯模块,依托Siemens PLC强大的通讯能力,通过Internet进行数据传送,真正实现了远程PLC的在线访问。该系统可通过远程PC对实训室中PLC机进行访问,完成上下载程序、在线诊断、在线监控等工作;并可以通过视频直接观察PLC动作,判断设备动作是否正确。介绍了该实训系统的网络拓扑图、各项功能和数据安全通信方法。

This paper describes the construction of remote online access to PLC laboratory based on internet.The laboratory applies industrial communication modules,relay on the powerful communications capabilities of Siemens PLC,transfer data by the internet.The PLC of the laboratory can be accessed by remote PC.The remote PC possible upload and download PLC program,online diagnosis,online monitoring,etc;and directly observed action of PLC by video,determine equipment movement is whether correct or error.The paper introduces the network topology,various functions and data security communication method of the system.