Abstract:
This paper introduces and analyzes the OPC DA 2.05A specification, implements Component Object Model(COM) object based on the Active Template Library(ATL), and realizes OPC client applications in VC++6.0 IDE. It gives the general steps and key technologies of OPC client implementation. It is tested and verified that this OPC client can realize stable and fast data exchange with standard OPC server by using Kepware’s OPC Server KEPServerEx V4.0.
Key words:
OPC client,
Active Template Library(ATL),
Component Object Model(COM)
摘要：
介绍并分析OPC DA 2.05A规范，在VC++6.0开发环境下，基于活动模版库实现组件对象模型对象，进而实现OPC客户端程序，给出开发OPC客户端的一般步骤以及关键技术。采用Kepware公司的OPC服务器KEPServerEx V4.0测试，验证该OPC客户端可与标准OPC服务器进行稳定、快捷的数据交换。
关键词:
OPC客户端,
活动模版库,
组件对象模型
CLC Number:
SU Lei, LI Qian, SHANG Wei. Research and Implementation of OPC Data Access Client[J]. Computer Engineering, 2010, 36(11): 80-82.
苏磊, 李茜, 汤伟. OPC数据访问客户端的研究与实现[J]. 计算机工程, 2010, 36(11): 80-82.