摘要
为满足测控类专业的实验教学需要,应用S7-200型PLC、数传电台及LabVIEW开发环境在实验室构建了PLC测控网络实验系统。该系统由PLC站、中心站及网络站构成,实现了对多个分散PLC控制系统的信息汇总及多级远程监控。其中,PLC站与中心站应用Modbus协议并通过数传电台实现连接;中心站与网络站应用W eb技术并通过实验室局域网实现连接。此外,应用不同的通信技术还可在该实验系统框架内实现多种网络连接方式,为实验教学及相关科研工作提供了灵活的实验平台。
An experimental system of PLC monitoring network was constructed in laboratory using S7-200 PLC,data radios and LabVIEW.The system is composed of PLC stations,central station and net stations.In the system,the net stations could access the PLC stations through the network.The PLC stations and the central station are connected with data radios based on Modbus protocol while the net stations communicate with the central station through the laboratory LAN based on Web technology.Furthermore,various network technologies were discussed to be applied in the experimental system.
出处
《实验室研究与探索》
CAS
北大核心
2009年第10期58-61,共4页
Research and Exploration In Laboratory
