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OPC Programmers' Connection

OPCconnect.com is an independent site dedicated to the needs of the software/solutions developer working with OPC (formerly OLE for Process Control). To find out more, see 'About This Site'.

OPC Foundation website

OPC Foundation owns all OPC trademarks including the OPC logo used throughout this site. You may visit the OPC Foundation website at www.opcfoundation.org.

Recent updates...

(updates also available via  RSS feed)

2015-May-19 OPC UA in One Minute
The benefits of OPC UA are described in a short, easy to understand video. Watch the video from here.
2015-Apr-17 What is Internet of Things (IoT), OPC UA and Industry 4.0
Watch this OPC Foundation video produced collaboratively with Matrikon to get a clear, high level overview of the IoT landscape both for vendors looking to adopt the IoT in their products and services and for professionals in companies that will use this technology to better compete today and in the future. Download the video from here.
2014-Oct-28 Matrikon Releases Industrial UA Modbus Gateway
Industrial UA Modbus Gateway provides secure, powerful and broad connectivity to access data from RTU’s, PLCs or any other devices that use the Mobus data protocol. Click here to get more details.
2014-Oct-21 Learn how to use the UA CTT to test your OPC UA products
Learn more about UA Compliance Test Tool with videos and tutorials posted by OPC Foundation and its members. Watch the tutorials here.
2014-Oct-06 Matrikon OPC Day Conference EMEA, November 10th, 2014
This one day conference will provide engineers, project managers, and control automation professionals with data connectivity and security information they need to increase the performance, efficiency and safety in their projects. Click here for more information and registration.
2014-Jul-23 Product Announcement
The MatrikonOPC has released a new industrial data logger. This product is ideal for collecting data at remote locations and small facilities. It provides reliable and secure data delivery in one easy-to-configure device. Visit The Matrikon Industrial Data Logger page for more detailed information on this specific product.
2013-Mar-20 2013 North American OPC Interoperability Workshop
The 2013 North American OPC Interoperability Workshop is THE event for testing OPC products for interoperability and will be hosted by Honeywell in Phoenix, AZ April 22-26, 2013. In addition to testing, this event provides an ideal opportunity to network with your peers, learn about OPC technology, and to interact with industry-leading experts. Click here for more information and registration.
2012-Nov-05 UA Compliance Test Tool (Windows 32-bit) BETA
The OPC Foundation Released a BETA version of the UA Compliance Test Tool. Download the UA CTT from here.
2012-Oct-09 Countdown to OPC Technology Summit 2012 - Commence now!
The OPC Foundation's OPC Technology Summit 2012 is scheduled for October 16-18, in Orlando, Florida, USA, at the Renaissance Orlando at SeaWorld. If you develop OPC products, use OPC solutions, or want to know more about OPC technology and its benefits, then you cannot miss this important opportunity. Hear from end users, OPC product developers and keynote presenters, including a cyber security expert and a noted industry author. Open to OPC Foundation members and non-members.
2012-Sep-12 OPConnect Newsletter September 2012
The OPC Foundation and Automation World released OPConnect. The newsletter can be found here
2012-May-31 Save-the-Date for OPC Technology Summit 2012, October 16-18, Orlando, FL
Mark your calendar for the OPC Foundation's OPC Technology Summit 2012, scheduled for October 16-18, in Orlando, Florida, USA, at the Renaissance Orlando at SeaWorld. If you develop OPC products, use OPC solutions, or want to know more about OPC technology and its benefits, then you cannot miss this important opportunity to learn and network with the OPC experts. Open to OPC Foundation members and non-members, the multi-day event features presentations on OPC UA technology, solutions and value proposition. Hear from end users, OPC product developers and keynote presenters, including a cyber security expert and a noted industry author.
2012-Mar-22 OPC UA Specification Part 13 is Released
The OPC Foundation released the new version of the OPC UA Specifications Part 13 - Aggregates RC 1.02.10 Specification. It's available on the OPC Foundation website and can be downloaded from here.
2012-Mar-12 OPConnect Newsletter March 2012
The OPC Foundation and Automation World released OPConnect. The newsletter can be found here
2012-Feb-23 Automation.com Newsletter - OPC Update is Released
OPC Update is a newsletter published by Automation.com in collaboration with ISA and InTech. View the latest issue here.
2012-Feb-16 New version of the OPC UA Specification is Released
The OPC Foundation released today a new version of the OPC UA Specifications 1.02. It's available on the OPC Foundation website and can be downloaded from here.
2012-Jan-19 2 New OPC UA Server Development Whitepapers
Transylvania University of Brasov (Romania) releases 2 OPC UA whitepapers Design and implementation of UA Aggregating Server and Efficient Address Space Generation for a UA Server. See all available Books and Whitepapers.
2012-Jan-05 OPC Foundation, North American Interoperability Workshop 2012
Join the OPC Foundation at the North American Interoperability Workshop hosted at Invensys in Lake Forest, CA March 19-23, 2012.
2011-Dec-09 OPC Foundation Announces Certification Test Results for 2011
Products from Leading Companies Pass Intense Certification Testing for Full Compliance with OPC Specifications and Interoperability Requirements.
2011-Dec-09 A New Version of the OPC UA .NET SDK is Available
A new version of the UA .NET SDK (Build 333) has been posted which contains changes to the licensing of the source code, along with some bug-fixes.
2011-Nov-14 OPConnect Newsletter November 2011
The OPC Foundation and Automation World released OPConnect Issue 30. View the newsletter here
2011-Nov-08 UA Compliance Test Tools for Linux
The OPC Foundation published the new version of test tools for OPC UA and OPC Classic for Linux users. Download the Linux UA CTT from here
2011-Nov-07 OPC Unified Architecture And The Cloud
The OPC Foundation made a video about why OPC UA is the foundation for Cloud enabled Industrial Automation applications. Watch the Video on the OPC Foundation website
2011-Oct-31 OPC Foundation officially joins the FDI Cooperation
FDT Group, Fieldbus Foundation, HART Communication Foundation, PROFIBUS & PROFINET International and OPC Foundation founded a company to establish an organization to manage a common single solution for device integration (FDI). Read the press release here
2011-Oct-19 OPC Foundation President, Tom Burke, shares his vision on the future of OPC Technology
Thomas J. Burke, OPC Foundation President & Executive Director, talked about the future OPC Technology and the OPC Foundation's evolving role among the growing number of international standards. Watch Tom's presentation here
2011-Oct-12 A White Paper on Modelling Multiple Inheritance in OPC UA
Many information models introduce the concept of multiple inheritance and/or object interfaces to allow the re-use of software components. This whitepaper describes how to model these concepts in OPC UA. Download it from here
2011-Oct-03 New Versions of UA Compliance Test Tools
The OPC Foundation released new versions of test tools for OPC UA and OPC Classic, for both Server and Client testing. Download the New UA CTT from here
2011-Sep-19 UA Compliance Test Tool
The OPC Foundation released the UA Compliance Test Tool. This CTT should help validating OPC UA Servers and Clients conform to the OPC UA Specifications. Here is the link to download the UA CTT
2011-Sep-07 New Beta Release of the OPC UA SDK
It includes a sample implementation of the new 'Global Directory Service' information model (Part 12) which allows system wide management of certificates. This is final Beta before the RC. Here is the link to download the SDK
2011-Aug-08 OPConnect Newsletter August 2011
The OPC Foundation and Automation World released OPConnect. The newsletter can be found here
2011-Aug-08 OPC Foundation OPC UA Working Group F2F - Vancouver
The OPC Foundation UA WG has a F2F scheduled for Sept 14-15 in Vancouver, BC. Any OPC Foundation member is welcome to attend.
2011-Jun-23 A New Version of the OPC UA SDK is Available
A new version of the UA .NET SDK has been posted. Changes include support for Silverlight and the new HTTPS based protocol. SDK Downloads can be found here
2011-May-24 OPC Security page updated
With the growth of cyber threats and realizing their negative impact on their critical control systems, we continue to enhance our coverage. Take a deep dive and learn about OPC Security. Try out the tools and check out the new whitepapers here
2011-May-09 OPConnect Newsletter May 2011
The OPC Foundation and Automation World released OPConnect. The newsletter can be found here
2011-May-02 New Updates to OPC UA SDK from the OPC Foundation
The OPC Foundation Announces the updated release of the OPC UA SDK deliverables. Download the new OPC UA SDK from here. OPC UA SDK from here
2011-Apr-25 UA Compliance Test Tool
OPC Foundation - recently released an OPC UA compliance test tool. Download the OPC UA CTT from here!
2011-Apr-18 OPC Foundation - OPC UA WG F2F
OPC UA Working Group F2F in Walldorf, Germany: The OPC UA Working Group will meet in Walldorf, Germany (SAP headquarters) from May 23th to 25th. More information on the OPC Group can be found here
2011-Apr-04 OPC Foundation Releases Issue 27 of OPConnect newsletter
The OPC Foundation and Automation World released OPConnect Issue 27. The newsletter can be found here.
2011-Mar-21 OPC UA Part 11 - Historical Access 1.01 Specification
A Release Candidate of the OPC UA HA 1.01 is available for download today on the OPC Foundation website. Click here to download the HA 1.01 Specification
2011-Mar-01 OPC Europe Announces OPC Day in May
OPC Foundation Europe has announced an OPC Day on May 25, 2011 at SAP Headquarters in Walldorf, Germany. This event is for both members or the OPC Foundation and non-members. Click here for more Information/Registration
2011-Feb-23 OPC Foundation - OPC UA Working Group F2F
The OPC Foundation is convening a meeting of the UA Working Group to discuss these changes and to plan future updates to the specification. Click here to get more details
2011-Feb-02 OPC UA Interoperability Events
The OPC Foundation released videos about why OPC UA is the foundation for Cloud enabled Industrial Automation applications and A Demonstration of OPC UA products interoperating across the the Internet. Click here to view
2011-Feb-02 OPC .NET 3.0 (WCF) 1.20 Client Source Code
The OPC Foundation released the source files for the "OPC .NET 3.0 (WCF Edition)" (formally known as OPC Xi). These examples can be used to create WCF applications which can wrap existing OPC Classic products. Click here to download
2011-Jan-25 OPC Foundation: Unified Architecture Security Whitepaper
The OPC Foundation released a whitepaper recently about the OPC UA security. Click here to download
2011-Jan-10 OPC Foundation: 6-steps to Success with OPC UA
The OPC Foundation released a whitepaper recently about the OPC UA adoption around the world. The whitepaper breaks it down to 6 simple steps to help you maximize the investment in OPC UA technology, from inception, to development and through to certification. Click here to download