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OPC-enabled software and high-performance Web-based HMI applications


Posted 2011-03-15 23:40:37 by Cogent Real-Time Systems

OPC-enabled software and high-performance Web-based HMI applications Latest generation of OPC-middleware from Cogent RealTime Systems permits high-performance Web-based HMI applications with point-and-click screen editing, real-time integration, millisecond data update rates, fast screen refreshes, and high-quality graphics. As the world continues moving towards the Web, and pulls the industrial automation sector with it, we are demanding better quality Web-based HMIs.

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OPC DataHub helps integrate data for $10 billion project


Posted 2010-11-28 17:29:10 by OPC DataHub

OPC DataHub helps integrate data for $10 billion project Situated on an island in the St. Lawrence River, the City of Montreal in Quebec, Canada has been blessed with an abundant supply of water. Yet ensuring that clean, fresh water reaches the city's millions of residents every day requires constant attention. In 2004 the City of Montreal embarked on a 20-year, 10 billion dollar project to upgrade the quality of drinking water production and distribution in the city.

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Safe and Secure with OPC Technologies


Posted 2010-09-12 17:27:38 by Eric Murphy, MatrikonOPC

Safe and Secure with OPC Technologies With the prevalence of information technology and the drive towards having information readily available from any location, many previously isolated control systems are more accessible.The drive to reduce operational costs and improve performance has led control system vendors and critical infrastructure owners to move towards standardized technologies, operating systems, and protocols such as Ethernet, Microsoft Windows and OPC.

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Getting OPC Security Under Control


Posted 2010-08-26 15:20:31 by Eric Byres

Getting OPC Security Under Control There is no question OPC DA has provided a tremendous benefit to the automation and controls industry. OPC, which stands for Object Linking and Embedding (OLE) for Process Control, is the original name for a set of specifications developed in 1996 for industrial automation integration. OPC Classic refers to all versions of OPC prior to the more recent OPC Unified Architecture (OPC-UA).

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Compare OPC DA, OPC Xi and OPC UA standards


Posted 2010-08-24 17:09:06 by OPC Foundation

Compare OPC DA, OPC Xi and OPC UA standards OPC DA (Data Access) is a group of standards that provides specifications for communicating real-time data (or historical data with OPC HDA) from data acquisition devices such as PLCs. There are three attributes associated with OPC DA tags: value, the quality of the value and timestamp. This is the first standard resulted from the collaboration of a number of leading worldwide automation suppliers working in cooperation with Microsoft.

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Review Advosol Xi Components


Posted 2010-08-24 17:09:06 by Advosol

Review Advosol Xi Components OPC Xi is added to the OPC Foundation technology portfolio complementing OPC Unified Architecture (UA) and COM-based OPC Classic technologies. The OPC Xi interface is the result of collaboration among several OPC vendor companies from the process industry to develop an easily integrated and secure solution for a variety of plant communications. Primary objective of OPC Xi is was to provide a .NET-based migration path from OPC Classic. Additionally, OPC Xi defines a standard .

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Network Tunnel Links Control and Vision


Posted 2010-07-06 10:47:08 by Bruno Maurer

Network Tunnel Links Control and Vision Mark Lauterburg, engineering manager at the Kimberly-Clark paper mill in Niederbipp, Switzerland, was working on a real-time quality management system and was having some difficulty with his OPC servers and reliable data connectivity, so he contacted us as local distributor for OPC software to help resolve the issues he was facing. So the following morning I met him in the mill, and he explained the situation.

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Comparing the OPC-DA and XML-DA specification


Posted 2010-06-17 12:21:02 by Advosol

Comparing the OPC-DA and XML-DA specification OPC XML-DA for develop flexible, consistent rules and formats for exposing plant floor data using XML. Specifically it is the desire of the OPC Board that this effort initially focus on exposing the same data that the existing OPC interfaces expose today such as Data Access and later, Alarms and Events and that the working group strive to produce a simple, usable first release of the specification in as short a time as possible.

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How to develop OPC Clients with .NET?


Posted 2010-06-17 11:50:30 by Advosol

How to develop OPC Clients with .NET? The OPC specifications base on the legacy (D)COM technology. A .NET wrapper is required to enable .NET application access to the OCP specified COM interface. The .NET Framework provides Interop services that handle the wrapping of basic data types. The complex data types used in the OPC interface need to be handled in an additional wrapper layer. The Advosol OPC Client Components handle all necessary .NET wrapping and provide an easy to use interface with proper .NET data types.

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Which OPC Technology should I use?


Posted 2010-04-13 10:03:15 by Manny Mandrusiak (OPC Foundation)

Which OPC Technology should I use? The OPC Foundation has been receiving a lot of email lately regarding the different technologies that are now offered in the OPC portfolio in 2010. If one looks at the history of OPC, the technology has really come a long way in a very short time. It is very easy to see where individuals could become overwhelmed with the number of options that now exist.

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OPC Goes Embedded


Posted 2010-03-16 15:01:34 by Unified Automation

OPC Goes Embedded With the release of the OPC Unified Architecture, the OPC Foundation has finished a five-year development process of the new standardized communication and information exchange platform. The new architecture incorporates proven concepts from the successful OPC standards for access to current data, alarms and events, and historical data, but unifies them and provides solution for additional OPC use cases.

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OPC simplifies integration of process vision, quality control systems


Posted 2010-03-16 14:47:20 by Renee Robbins

OPC simplifies integration of process vision, quality control systems Logicpark, a Swiss engineering and system integration company, recently used the OPC DataHub from Cogent Real-Time Systems to network an ABB quality control system to a new Viconsys process vision system at the Kimberly-Clark production facility in Niederbipp, Switzerland. "The requirements for this project were challenging," said Bruno Maurer, head of solutions at Logicpark. "The OPC interface gave us a good foundation, and we used the OPC DataHub to get the most out of it.

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Push-based Active OPC Server


Posted 2010-03-05 18:38:58 by MOXA

Push-based Active OPC Server The OPC Server package can be installed where the OPC Client is located, or anywhere on the local network. This COM/DCOM framework has defined a standard set of objects, interfaces, and methods to facilitate interoperability in process control and manufacturing automation. By integrating OPC standardization into both software (SCADA) and hardware (device package), industrial devices can now communicate with the central monitoring software.

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Integrating OPC Servers and SCADA Systems


Posted 2010-03-05 18:38:29 by Cogent Real-Time Systems

Integrating OPC Servers and SCADA Systems In a recent data integration project, Siemens engineers in Copenhagen, Denmark, were able to connect equipment and instrumentation running in a high-security facility to a remote monitoring location using the OPC DataHub. The goal was to allow technicians access to the machines they needed to work on, without breaching security or permitting any non-authorized personnel on site.

At first the project promised to be a typical OPC application.

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Creating Secure OPC Architectures


Posted 2010-03-04 15:57:40 by Adriel Michaud

Creating Secure OPC Architectures OPC represents an easy to use, ubiquitous, reliable method of communication. As a result of it being based on DCOM; it is well known by security professionals, but unfortunately is also known by virus writers and hackers. Layers of security mean that should one part of the system be compromised, the rest will remain secure.

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OPC Gets Relational with Databases


Posted 2010-02-04 11:17:03 by MatrikonOPC

OPC Gets Relational with Databases In any industry, databases are the foundation of many automation applications. Databases are consistently used as a gateway to interface with the outside world, whether to a process optimization application, Computer Maintenance Management System (CMMS), composition analyzer, or a custom, in-house application. OLE for Process Control (OPC) has become the standard used by applications to poll devices for real-time data.

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Make Connections Like Magic Serial Protocol to OPC Using Genie Technology


Posted 2010-02-03 12:03:01 by MatrikonOPC

Make Connections Like Magic Serial Protocol to OPC Using Genie Technology Devices that use serial protocols abound in the industrial workplace, yet their integration within plants has eluded most users. Many devices including transmitters, electronic scales, process analyzers, PLCs and even some DCSs use proprietary serial interfaces to communicate with the outside world. Manufacturers who integrated these devices with the rest of their plant used to have only two options.

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OPC UA: Specification Vulnerabilities


Posted 2010-01-26 12:58:51 by Dale Peterson

OPC UA: Specification Vulnerabilities OPC UA is a complex, interleaved 12-part specification. To understand OPC UA security one has to read multiple parts of the specification, but we have provided an overview in an OPC UA SCADApedia page that continues to be developed. The specification analysis portion of our assessment report had many findings at the Exposure, Concern and Observation level.

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OPC UA - the next generation of OPC


Posted 2009-12-16 13:23:59 by Roy Kok

OPC UA - the next generation of OPC The OPC Foundation, working with key industry vendors since January 2004, has defined the next generation of OPC - OPC-UA. It is a significant upgrade of the technology invented back in 1996. With OPC-UA specifications now released, and early adopter products already on the market, OPC-UA is poised for mass adoption by the automation industry.

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OPC for process historian data optimization


Posted 2009-11-11 14:36:19 by Sean Leonard, MBA Eng.

OPC for process historian data optimization Off-Line analysis of historical process data is an integral part of process optimization and production tracking. OPC helps maximize return on process history investments. OPC not only provides a standardized mechanism for collection of real time process data, it also enables multi-vendor historical analysis solutions. OPC facilitates highly scalable multi-vendor distributed historian architectures.

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OPC UA Toolkits Support Multiple Operating Systems


Posted 2009-11-11 13:24:24 by Softing

OPC UA Toolkits Support Multiple Operating Systems Softing new OPC Unified Architecture toolkit sets support Windows, VxWorks and Linux operating systems, and include OPC libraries to develop OPC Clients and Servers. Softing has announced its new OPC Unified Architecture (UA) Toolkits that will be available in the fourth quarter of 2009. The latest version of the OPC UA Toolkit set support the following operating systems: Windows, VxWorks, and Linux.

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OPC for Windows CE


Posted 2009-09-30 13:31:58 by Al Chisholm

OPC for Windows CE Windows CE is a scaled down version of Microsoft Windows intended for use in embedded systems. It features a small footprint, good real time capability and the availability of powerful development tools. The fact that it can be burned into ROM greatly speeds startup of the system and also greatly reduces the need for the end user to setup and configure the system.

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The myth and magic of OPC


Posted 2009-09-10 09:23:52 by Patrick Dixon and Michael Velarde

The myth and magic of OPC Many of you have dreamed of the day when a process control system would easily allow third-party applications to read and write data in a standard way without a custom, proprietary interface. You remember the days when a vendor with a slick advanced control application spent weeks at your site just to get the darn thing to communicate with your digital control system.

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Optimizing OPC Communications


Posted 2009-08-03 14:32:14 by Automation Portals

Optimizing OPC Communications OPC middleware products are designed to enhance any OPC-based application. An intelligent set of OPC products simplifies the commissioning and operation of OPC clients and servers, significantly improves the data throughput of your OPC interfaces, and ensures reliable OPC communication links. Originally, OPC was defined as a standardized solution for the recurring task of connecting PC-based applications (for example HMI or SCADA systems) with automation and process control devices.

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Real-Time Performance of OPC in a Feedback System


Posted 2009-07-29 00:07:19 by S.J. Kew, B. Dwolatzky

Real-Time Performance of OPC in a Feedback System The paper surveys and describes the OPC specification and discusses whether it satisfies the requirements for use in a real -time Distributed Control System (DCS). Some authors have criticised OPC because it is closely linked to Microsoft Windows NT, which is not a true real-time operating system, and COM, which has no real-time support. This paper examines these criticisms, as well as the OPC Foundations arguments for OPC, in the context of the requirements for a real-time control system.

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Compare the OPC-DA and XML-DA specification


Posted 2009-07-29 00:06:34 by Advosol Inc.

Compare the OPC-DA and XML-DA specification The OPC-DA and XML-DA specifications standardize device access for different envirnonments: the OPC DA specification bases on (D)COM, which is the foundation of OLE, later renamed to ActiveX. DCOM is still supported by all Windows systems but is declared a legacy technology be Microsoft and is beeing replaced by .Net. OPC and DCOM define two interfaces, the Custom interface and the Automation interface.

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