基于OPC UA客户端的实时曲线图实现  

Implementation of real time curve graph based on UA OPC

作　　者：王立冬[1] 单海鸥[1] 边重阳 

机构地区：[1]辽宁石油化工大学,辽宁抚顺113001 [2]天津国电津能滨海热电有限公司,天津滨海新区300459

出　　处：《自动化与仪器仪表》2015年第6期181-184,共4页Automation & Instrumentation

摘　　要：针对传统OPC服务器基于COM/DCOM组件技术并不是依赖于WINDOWS平台,并且在网络传输数据以及在安全性等方面存在的一些缺陷的问题,提出了OPC UA(Object Linking and Embedding for Process Control Unified Architecture,统一架构)标准。通过OPC UA客户端使用服务完成查找服务器、与服务器建立连接、浏览OPC UA服务器地址空间、订阅监视变量节点实时数据及展现实时数据变量曲线图等任务。重点是通过对模拟量类型的订阅变量进行采集并用实时曲线图显示,最终实现OPC UA客户端实时曲线图。The traditional OPC server which based on COM/DCOM component technology is not dependent on the WINDOWS, more worse it has defects in the network's data transmission and security ect, acccording to this problem, put forward a standard of OPC UA(Object Linking and embedding for Embedding Process Control Unified Architecture,unified architecture). Search the server with the service,establish a connection with the service, browse the address space of the OPC UA, subscribe the real time data of monitored variable node, show the variable curve of the real time data and other tasks though the OPC client. The key is to collect the type of analog subscription variables and display real-time curve,and realiza the OPC client UA real time curve.

关 键 词：OPC统一架构 OPC UA客户端 Visual STUDIO C# 

分 类 号：TP311.52[自动化与计算机技术—计算机软件与理论]