【摘要】 随着工业自动化的发展,工控领域中常常会遇到异构平台之间的用于过程控制的OLE(OPC)通信问题。提出3种方法,分别利用EntireX DCOM,Java以及XML OPC,在Linux下开发OPC客户端。使用Linux上的OPC客户端访问Windows平台上的OPC服务器,从而实现OPC的跨平台通信。描述各种方法的关键技术并给出相关代码,并对所有实现方法进行比较,分析它们在工业应用中的前景。更多还原

【Abstract】 With the development of industrial automation, communication between OLE for Process Control(OPC) applications in heterogeneous platforms becomes a frequent issue in industrial process control area.This paper describes three methods, using EntireX DCOM/Java/XML OPC respectively to develop OPC clients under Linux.OPC client on Linux platform is able to communicate with OPC server on Windows platform, which is a successful implementation of OPC cross-platform communication.Key technologies in each method are discussed and corresponding code is also included with explicit explanation.A comparison is made between all implementations, based on which their further application in industrial environment is evaluated.更多还原