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Topic: OLE for process control

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	OLE for process control - Wikipedia, the free encyclopedia
		OLE for Process Control (OPC), is the original name for an open standards specification developed in 1996 by an industrial automation industry task force.
		OPC is generally understood to stand for "OLE for Process Control", even though no page on the OPC Foundation website suggests that the letters "OPC" ever stood for anything, except for some content written by member companies about themselves.
		OPC servers provide a method for many different software packages to access data from a process control device, such as a PLC or DCS.
	en.wikipedia.org /wiki/OLE_for_process_control (478 words)

	Berkeley Process Control - About OPC (Site not responding. Last check: 2007-11-06)
		OLE for Process Control (OPC) is a data interface standard that was created and is managed by the OPC Foundation, consisting of approximately 300 member companies.
		The OPC standard is based primarily on Microsoft'sComponent Object Model (COM), providing plug-and-play functionality for compatibility with a host of software packages in the automation and process control space.
		The OPC Foundation is dedicated to ensuring interoperability by creating and maintaining open specifications that standardize the communciation of acquired process data, alarm and event records, historical data, and batch data to multi-vendor enterprise systems and betweeen production devices.
	www.berkeleyprocess.com /html/Products/about_opc.htm (1006 words)

	Universal Dynamics - Engineering, Software and Productivity
		Several approaches to implementing the OLE for Process Control interface to existing systems are discussed, including emulation of field hardware, use of available communication ports, and legacy application nodes.
		OLE for Process Control (OPC) is relatively new technology developed by a consortium of companies involved in the process control industries.
		OPC technology may be used to provide a common interface to new and existing legacy DCS systems in a variety of forms.
	udl.com /library/p89.html (1462 words)

	Glossary of Process Control Terms
		The output of the "Master" controller is the setpoint for the "Slave" controller.
		Cruise control in a car and a house thermostat are common examples of how controllers are used to automatically adjust some variable to hold the process variable (or process variable) at the set-point.
		With proportional band, the controller output is proportional to the error or a change in process variable.
	www.expertune.com /glossary.html (1969 words)

	OPC Ole for Process Control Protocol (Site not responding. Last check: 2007-11-06)
		Originally based on Microsoft's OLE COM (component object model) and DCOM (distributed component object model) technologies, the specification defined a standard set of objects, interfaces and methods for use in process control and manufacturing automation applications to facilitate interoperability.
		OPC interface products are built once and reused many times, therefore, they undergo continuous quality control and improvement.
		OPC Security specifies how to control client access to these servers in order to protect this sensitive information and to guard against unauthorized modification of process parameters.
	www.pacontrol.com /OPC.html (555 words)

	OPC OLE for Process Control factory laboratory industrial manufacturing automation systems
		The Microsoft COM model, which OPC is based on, is going away with the introduction of Microsoft's new.NET model.
		An additional problem is that the OPC foundation and OPC users are being sued by a company called Solaia that claims to have a patent on communications with PLCs.
		We hope that the OPC foundation will continue their work, work out all of these problems and within a few years all of these problems should be behind them.
	www.htservices.com /Tools/VBandC/OPC.htm (939 words)

	Process Control and Common Terms
		Controller Output - CO Output signal from the controller.
		With derivative action the controller output is proportional to the rate of change of the process variable or process error.
		With integral action, the controller output is proportional to the amount and duration of the error signal.
	www.engineeringtoolbox.com /process-control-terms-d_666.html (836 words)

	Kepware Technologies - OLE for Process Control Overview
		The OPC Foundation put forth the goal of developing a single client/server specification that would allow any vendor to develop software and applications that could share data in a fast, robust fashion, and do it in a way that would eliminate the proprietary schemes that forced these same vendors to duplicate development efforts.
		A major goal of the OPC Foundation and the Data Access specification was to eliminate the need of client application vendors to develop their own proprietary set of communications drivers.
		The OPC Item should be thought of as simply specifying the address of the data, not as the actual physical source of the data that the address references.
	www.kepware.com /Menu_items/industry_OPC_Foundation.html (1308 words)

	REDUCT Approach to Effective Process Management
		Process Intelligence (PI) is a code-name for a range of technologies which unlock knowledge hidden in process data while telling how to use it more effectively.
		Process Intelligence, in contrast, focuses on process data, process information, knowledge, and all other business and operation aspects involved in scheduling, optimization, control, maintenance and management of the process.
		Process Intelligence systems provide vital business and process intelligence to industry, and PI technologies are within the reach of every plant.
	www.reduct.com /Solutions/reduct_approach.htm (1143 words)

	Advanced process control - Wikipedia, the free encyclopedia
		APC are often used for solving multivariable control problems or discrete control problem.
		Controlled variables (CVs) are variables that normally need to be controlled between limits.
		Popular commercial multivariable control applications include DMCplus from Aspen Technologies, RMPCT from Honeywell and Connoisseur from Invensys, INCA from IPCOS (also for batch application), Galaxy from PAS, GMAXC from Intelligent Optimization, Expert System ES III™ from Glass Service but there are many more.
	en.wikipedia.org /wiki/Advanced_process_control (335 words)

	Varec® OPC Applications
		The OPC (OLE for Process Control) specification is an open technical specification that defines a set of standard interfaces based upon Microsoft's OLE/COM technology.
		OPC server functionality within FuelsManager allows tank gauging data to be made available to any process control system that supports an OPC client interface.
		The OPC standard also supports an interface designed to browse and select database tags for which data is exchanged.
	www.tankgauging.com /apps_opc.htm (220 words)

	OPC - Real-Time Insturmentation Components (ActiveX, VCL) for Automation, HMI, and Process Control
		OPC, or OLE for Process Control, is a standard for linking properties of our components to hardware signals or configurations from industry standard OPC servers.
		OPC is a specification or set of written rules and procedures for the way multiple software programs ("applications") can talk to each other.
		OPC item connections can be programmatically added and removed using code for users wanting to create sophisticated applications that change their behavior at runtime based on operating conditions.
	www.hallogram.com /opc/?source=escoop090903 (442 words)

	OPC Factelligence Industrial Portal Process Control Data Source Connector
		OPC is an acronym for OLE for Process Control.
		OPC eliminates this requirement by defining a common, high performance interface that permits this work to be done once and then easily reused by HMI, SCADA, Manufacturing Intelligence, MES and custom applications.
		OPC has become a common method for data transfer between automation and control applications and business/office systems.
	www.cimnetinc.com /factelligence_opc.htm (252 words)

	The OPC Foundation - Dedicated to Interoperability in Automation
		OPC Board of Director Election: The OPC Foundation will conduct its annual Board of Directors election during the period October 31, 2006 to December 1, 2006.
		OPC Announces DevCon 2006: QUICK UPDATE: The 2006 DevCon hosted by the OPC Foundation and ITM, held at the University of Munich on October 10-12, was a tremendous success.
		The OPC Foundation is pleased to announce that the final Release Candidates for the base OPC Unified Architecture Specifications are available for review by OPC Foundation Members.
	www.opcfoundation.org (580 words)

	OPC Programmers' Connection - OLE for Process Control
		OPC Foundation calls this the "the most important OPC technology event of the decade", and we're inclined to agree.
		OPC Foundation has asked all member companies to send at least one delegate to this important event.
		OPC, the OPC logo, and OPC Foundation are trademarks of the OPC Foundation.
	www.opcconnect.com (862 words)

	What is OLE for Process Control? - A Word Definition From the Webopedia Computer Dictionary
		Process Controls: Siemens Scalance Wireless - Industrial-grade wireless equipment and security appliances, including process controls and networking equipment for harsh/outdoor environments.
		The OPC Foundation is dedicated to ensuring interoperability in automation by creating and maintaining open specifications that standardize the communication of acquired process data, alarm and event records, historical data, and batch data to multi-vendor enterprise systems and between production devices.
		INTEG Process Group: Process Controls - Allows users to connect digital and analog process signals to their Ethernet network for interacting with a Web browser or software application.
	www.webopedia.com /TERM/O/OLE_for_Process_Control.html (343 words)

	[No title] (Site not responding. Last check: 2007-11-06)
		OPC is transparent to the three structure and thus also support IEC 61970.
		OPC is also transparent to what attributes are defined except a very minimal set of attributes.
		OPC also support structuring of objects but is limited to one single structure.
	www.omg.org /docs/mfg/00-02-02.txt (3165 words)

	Emerson Process Management 301 Версия для печати
		OPC (OLE for Process Control – OLE для управления процессами) – это новый стандарт, использование которого принесет большую выгоду сообществу людей, занятых управлением технологическими процессами.
		Стандарт OPC описывает интерфейс между клиентскими приложениями и серверами, обслуживающими управление технологическими процессами.
		Использование же технологии OPC позволяет любому OPC-совместимому клиентскому приложению получать доступ к любому устройству управления, у которого есть OPC-совместимый сервер.
	www.emersonprocess.com /russia/print.asp?id=301 (1317 words)

	Emerson Process Management: Products: Connectivity Products
		OPC is a real-time data interchange protocol that is based on an open standard and a consistent method of accessing data from plant devices.
		OPC, OLE (Microsoft's Object Linking and Embedding) for Process Control, was designed by an open foundation to meet the general needs of industry.
		The OPC interface does not require a custom interface or driver in order for an external application to access a plant's process control device.
	www.emersonprocess-powerwater.com /connectivity/index.htm (1137 words)

	Rockwell Software Delivers OPC-Compliant MMI Package With Embedded Microsoft VBA Development Environment
		OLE For Process Control Compliance With the release of Version 6.0, Rockwell Software RSView32 is one the first MMI software package to fully comply with the OLE for Process Control (OPC) specification for software interoperability.
		These include a standard technique for addressing information in process control devices and systems, efficient transfer of data from a device to an application, the ability for a client to use several servers simultaneously and server-specific configuration support.
		RSView32 uses OPC technology to be both a client and a server of OPC data.
	www.software.rockwell.com /corporate/pressrelease/RSView32v6VBA.cfm (788 words)

	Process Control News - Control Station
		Control Station's automatic process control software is used in a variety of applications associated with batch and continuous manufacturing processes.
		Control Station, Inc. is a leading provider of automatic process control solutions, including software products and training services.
		Control Station has provided its portfolio of solutions to leading companies across the process industries.
	www.controlstation.com /about/news/press.9.16.04.php (548 words)

	What Is OPC? - OPC Client ActiveX, Visual Basic and OPC Server Development
		OPC eliminates this requirement by defining a common, high performance interface that allows this work to be done once, and then easily reused by HMI, SCADA, control and custom applications.
		OPC is defined on the website of the OPC Foundation, including these seven standards specifications.
		The OPCWare Client Developer ActiveX control suite includes four controls that are used to browse and connect to OPC servers, and to bind the OPC data to user controls.
	www.opcware.com /WhatIsOPC.html (3871 words)

	Tech Expertise Center - OPC - OLE for Process Control
		This area is dedicated to OLE for Process Control technologies.
		OPC Data Access 2.0 Overview 280k - Powerpoint PPT file - From the OPC Foundation, this presentation by Al Chisholm, the Technical Committe Chairman, covers the OPC Data Access 2.0 specification and its key interfaces.
		OPC Alarms and Events 1.0 Overview 290k - Powerpoint PPT file - From the OPC Foundation, this presentation by Al Chisholm, the Technical Committe Chairman, provides a good overview of the OPC Alarms and Events specification.
	www.softwaretoolbox.com /Tech_Support/TechExpertiseCenter/OPC/opc.html (396 words)

	eCLIPS - Design Guide for 'PROCESS CONTROL'
		The OPC Programmers' Connection Web site was set up in early 1997 to meet the needs of software developers working with the various OLE for Process Control specifications.
		Control Design is the only publication exclusively dedicated to the automation, control and instrumentation needs of industrial original equipment manufacturers (OEMs).
		Process Control Performance Assessment is a practical guide to the application of control benchmarking to real, complex, industrial processes.
	www.eg3.com /eclips/html/design-guide/indmil_process_blank.html (856 words)

	OLE For Process Control (Site not responding. Last check: 2007-11-06)
		OLE for process control (OPC) is commonplace in Europe and is now just starting to gain acceptance in the UK.
		Also, testing possibilities for OPC applications and the use of OPC in the Internet as well as OPC performance are discussed.
		This book is the ideal manual for OPC beginners, development engineers and deciders in the industry, but also for students who want to get acquainted with the current developments in automation technology.
	www.hitex.co.uk /opc/opcbook.html (183 words)

	WinTECH Software... OPC Server & OPC Client Tools
		It is based on the Distributed Common Object Model, (DCOM), as defined by Microsoft Corp. The full specification for OPC is maintained and made publically available by the OPC Foundation and designers are encouraged to download this information, along with available source code samples, to help with their adaptations, thus promoting the standard.
		It is not necessary for a developer to become a member of the OPC Foundation or to utilize a commercially available toolkit in order to generate OPC compliant products.
		These toolkits provide a unique opportunity for those new to OPC, by allowing free access to a fully functional verified toolkit which can be easily integrated with user code to create OPC designs which, in effect, have already been tested for compatibility with a large number of third-party OPC applications.
	www.win-tech.com /html/opc.htm (1400 words)

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