News Release from the MTConnect Institute

Russell Waddell
MTConnect Institute

OPC UA/MTConnect® Companion Specification Published for Implementers


McLean – "OPC Unified Architecture for MTConnect Companion Specification Release Candidate (RC) 2.0.4" is now available. The document is an overhaul and comprehensive rewrite of RC 1.0.2 (2013) that incorporates current features and functions of MTConnect and OPC UA.

Manufacturers demand streamlined, secure data. The MTConnect Institute and has developed a comprehensive semantic data model for Manufacturing Technology and has modeled that data into an OPC UA companion specification leveraging secure information integration from the embedded world to the cloud. Previously disconnected, disparate applications and devices can now be interconnected to take advantage of standardized data and information for manufacturing applications. This allows manufacturing applications to truly optimize production with significant increases in operational efficiency.

“Standards harmonization is critical to the future of manufacturing,” said MTConnect Institute President Douglas K. Woods. “OPC UA has a strong user base in critical global markets and offers key features that many MTConnect users want. Conversely, OPC UA users will benefit from the robust semantic definitions for manufacturing technology that MTConnect provides.”

RC 2.0.4 was developed in a joint working group of the OPC Foundation and MTConnect Institute based on current OPC Foundation companion specification templates. While it is a complete and fully functional spec, a series of test implementations are planned for verification and additional input from prospective implementers is welcome. Release candidate implementers should join the working group ( to log bugs and issues, provide input to the final spec, and help move to a formal release under OPC Foundation procedures.

“The exciting collaboration between MTConnect and the OPC Foundation has resulted in significant innovation in manufacturing technology leveraging OPC UA to streamline the semantics of MTConnect from the embedded world to the cloud. Complex manufacturing applications can be simplified to reap the benefits from the OPC UA MTConnect companion specification to improve efficiency in operations, production optimization and increased productivity” said Thomas J. Burke, Strategic Marketing Officer of the OPC Foundation.

Download the release candidate at


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MTConnect is an open, royalty-free standard that provides a semantic vocabulary for manufacturing devices. It reduces the cost and complexity of system integration and fosters interoperability for the factory.

The MTConnect Institute is a 501(c)(6) not-for-profit standards development organization for the MTConnect standard, The Institute is a subsidiary of AMT-The Association For Manufacturing Technology. Its mission is to create open standards to foster greater interoperability between devices and clients by defining the structure and terminology used in communications in the discrete parts manufacturing sector.

AMT – The Association For Manufacturing Technology represents and promotes U.S.-based manufacturing technology and its members—those who design, build, sell, and service the continuously evolving technology that lies at the heart of manufacturing. Founded in 1902 and based in Virginia, the association specializes in providing targeted business assistance, extensive global support, and business intelligence systems and analysis. AMT is the voice that communicates the importance of policies and programs that encourage research and innovation, and the development of educational initiatives to create tomorrow’s Smartforce. AMT owns and manages IMTS — The International Manufacturing Technology Show, which is the premier manufacturing technology event in North America.

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