摘要
设计了一种利用PLC(可编程逻辑控制器)及工业计算机对某工厂设备进行远程实时监测的软件系统。B/S模式的远程实时监控系统使用网络浏览器作为监控客户端,具有使用和维护方便的特点。分析了监控系统的整体结构与上位机软件模块结构,介绍了上下位机间串行通信的通信协议及C#的实现,着重分析了在ASP.NET中利用组件OWC(officewebcompone-nts)进行数据实时显示与查询等关键技术。目前,该系统已投入试运行,效果良好。
A Software for supervisorying devices on line based on PLC (programmable logic controller) and industry PC is described. The system is easy to use and maintain. The architecture of the system and software structure in PC are firstly described, and then the serial communication protocol between PLC and PC is analyzed, and last the key technologies of realizing real-time chart through OWC (office web components) in ASP.NET are discussed.
出处
《计算机工程与设计》
CSCD
北大核心
2008年第16期4150-4152,共3页
Computer Engineering and Design