The OPC standard was introduced and the realization of the client end was presented.
简单介绍了OPC规范并详细给出了该系统中OPC客户端的具体实现。
This system adopts the unified computer operating platform, adopt unified OPC standard agreement.
本系统采用统一的计算机操作平台，采用统一的OPC标准协议。
OPC Standard is selected as upper layer interface in contrast with EPA Specification as bottom layer interface in EPA Data Server based on OPC.
基于OPC标准的EPA数据服务器选择OPC标准作为上层接口，选择EPA规范作为底层接口。
According to CBS2000 system, it points out that using OPC standard design supervisor and control system will improve the software development speed greatly and reduce the software maintenance work.
以开发的CBS2000系统为例，指出采用OPC标准设计监控系统软件，可大大提高软件的开发速度并减少软件的维护工作量。
OPC is an established and recognized standard for data exchange between control and HMI in manufacturing and process automation.
OPC是生产以及过程自动化的控制和人机界面之间数据交换的一个已有的公认标准。
OPC historical data access Server provides a kind of standard mechanism of data access for the users who are interested in historical data.
OPC历史数据服务器提供了一种标准的历史数据访问机制给那些对历史数据感兴趣的用户。
OPC is a software data interchange standard interface and specification, which has nothing to do with the manufacturer, and provides the advanced technology to solve this issue.
OPC是与厂商无关的软件数据交换标准接口和规程，为解决这一问题提供了先进的技术手段。
OPC brings the unify platform for different protocol, communication, interconnection of different equipment standard, and it processes data of the systematic parameter the real-time.
OPC标准为不同协议、不同设备之间的通信、互联提供统一平台，实现对系统参数数据处理的实时性。
OPC specifications and IEC 61499 standard both are protocols of User Layer of FieldBus Control System(FCS), and both are based on software component technology.
OPC规范和IEC 61499标准在现场总线控制系统中均属于用户层协议，二者都基于组件技术。
The basic structure of OPC and the standard of data access are researched in the paper. The automation interface object model is analyzed.
研究了OPC的基本结构和数据访问标准，重点分析了自动化接口的对象模型。
OPC applies OLE (Object Linking and Embedding) technology into Industry Process Control Fields, and provides a kind of standard data access method.
OPC把对象链接和嵌入技术应用于工业过程控制领域，为工业控制领域提供了一种标准的数据访问机制。
OPC technology provide standardized interfaces, by which applications are able to access data in a standard way.
OPC技术提供了标准化访问接口，应用程序可以使用一致的方式访问设备中的数据。
OPC is an industrial standard for control field.
OPC是一种应用于控制领域的开放式工业标准。
Then , COM which is the base of OPC is introduced including the attritudes of COM, standard interfaces and the concept of COM object.
接着介绍作为OPC基础的组件对象模型COM原理，包含COM的特性、标准接口、以及COM组件的基本概念。
OPC technology specification is established by OPC foundation, which provides unitive data accessing software and hardware interface standard.
OPC技术规范是OPC基金会制定的，它提供了统一的数据访问软硬件接口。
OPC technology specification is established by OPC foundation, which provides unitive data accessing software and hardware interface standard.
OPC技术规范是OPC基金会制定的，它提供了统一的数据访问软硬件接口。
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