编辑本段OLE for Process Control工业标准 OPC全称是Object Linking and Embedding(OLE) for Process Control,它的出现为基于Windows的应用程序和现场过程控制应用建立了桥梁。在过去,为了存取现场设备的数据信息,每一个应用软件开发商都需要编写专用的接口函数。由于现场设备的种类繁多,且产品的不断升级,往往给用户和软件...
An OPC is based on server/client architecture. End users expect 24/7 reliability, full data information integrity and validated, secure interoperability. OPC standardizes the communication of process control data. It standardizes on technology rather than product, also it provides true interoperability ...
OPC or OLE for Process Controlis an open standardized software communication interface specification launched in 1996 by a task force of different automation companies, later forming the OPC Foundation. OPC is an adaption of Microsoft’ Object Linking and Embedding OLE to the process control business ...
OLE Automation Controllers:OLE Automation Controllers 是使用OLE 技术与OLE Automation Servers 进行通信的应用程序或组件。它们可以通过编程接口调用Automation Server 的方法、访问其属性,并与其进行交互。 In-Process Servers 和 Out-of-Process Servers:In-Process Servers 和 Out-of-Process Servers 是两种不同类型的...
必应词典为您提供OLE-for-process-control的释义,网络释义: 接口标准;过程控制的对象链接和嵌入;进行数据交换;
OLE for Process Control, also known as OPC, is a client-server architecture for exchanging process data. Although the first OPC-standard was published in 1996, and is today widely accepted and used in industries, it is still not very popular in academia, especially in Europe. The paper gives...
For more information, see IFont. IForegroundTransfer Transfers control of the foreground window to the COM server process. For more information, see IForegroundTransfer. IGlobalInterfaceTable Enables access to an interface from any apartment in a process. For more information, see IGlobalInterface...
Only the server principal and system are allowed to call the server. Security Note: Enabling this functionality enables remote access to COM objects on your device. LegacyAuthenticationLevel= default_authentication_level : REG_DWORD Sets the default authentication level for applications that do not...
For more information, see IFont. IForegroundTransfer Transfers control of the foreground window to the COM server process. For more information, see IForegroundTransfer. IGlobalInterfaceTable Enables access to an interface from any apartment in a process. For more information, see IGlobalInterface...