OPC数据访问服务器研究与应用  

Research and application of OPC data access server

作　　者：田茂琴 

机构地区：[1]铜仁广播电视大学,贵州铜仁554300

出　　处：《现代电子技术》2015年第21期72-75,79,共5页Modern Electronics Technique

摘　　要：针对OPC技术在国内的应用现状,以OPC数据的存取规范为依据,利用国产Multi Bus-RTU系列模块基于Modbus TCP协议对OPC数据访问服务器进行开发,设计采用OPCMaster公司的OPC开发工具OM_OPCSvr.dll实现OPC数据传输服务器的开发,通过以太网方式,在Modbus设备和OPC客户端之间提供数据交换通道。通过对OPC数据访问服务器结构和操作流程的设计,构建了服务器的功能框架。基于Modbus TCP OPC服务器和Windows平台,通过对服务器进行初始化,对通信驱动模块和用户界面进行规划,进而对OPC数据访问服务器进行了详细的实现。通过进一步的OPC服务器测试发现,该服务器具有可靠的稳定性,能切实地节约成本,减少通信驱动数量,并缩短开发周期。Aiming at the domestic application status of OPC technology,and taking the access specification of OPC data as the basis,the OPC data access server was developed by using domestic Multi Bus-RTU series module based on Modbus TCP protocol. The OPC development tool OM_OPCSvr.dll created by OPCMaster company is adopted to achieve the development of OPC data access server. The exchange channels of data are provided between the Modbus device and the OPC client with the Ethernet. The function framework of the server was constructed by designing the structure and operation process of OPC data access server. Based on the Modbus TCP OPC server and the Windows platform,the communication driver module and user interface were planned by initializing the server,and then the OPC data access server was realized. The further test to the OPC server found that the server has reliable stability,and can save the cost effectively,reduce the number of communication driver,and shorten the development cycle.

关 键 词：OPC服务器 COM/DCOM 数据访问 MODBUS TCP 

分 类 号：TN911-34[电子电信—通信与信息系统] TP273.5[电子电信—信息与通信工程]