OPC Tunneller eliminates DCOM communication issues

MatrikonOPC's newest version of the OPC Tunneller transfers data from remote OPC Servers into a centralized A+E Historian without DCOM communication issues.


MatrikonOPC has released the newest version of OPC Tunneller – now with support for OPC Alarms and Events (A+E). With OPC Tunneller, users can now easily transfer data from remote OPC Servers into a centralized A+E Historian without DCOM communication issues. This allows users to establish and maintain secure, reliable communications between systems spanning large geographical distances and systems on complex networks.

OPC Tunneller’s loss-less data compression reportedly uses less than 10% of the bandwidth normally needed by regular OPC traffic based on DCOM. Such low data overhead is optimal for use in limited data bandwidth applications that involve the use of satellites, modems, radios, and other bandwidth-limited communications. In addition, OPC Tunneller keeps OPC data confidential by encrypting it. This approach provides users with an additional layer in the defense-in-depth cyber security model.

MatrikonOPC Tunneller. Courtesy: MatrikonOPC

"The ability to access your data whenever and wherever you need is crucial in today’s automation solutions, especially when it comes to alarm data. Plant operators and engineers need ready access to such data to prevent down time, costly maintenance, or outright disasters. OPC Tunneller provides users the most stable and secure connectivity possible to their real-time, historical, and alarm and event OPC data sources,” said Darek Kominek Marketing Manager at MatrikonOPC products.

OPC Tunneller’s key features:

  • Easy cross-domain and workgroup connectivity
  • Direct connectivity to A+E Historians
  • Works well in low bandwidth environment.



- Edited by Amanda McLeman, Control Engineering, www.controleng.com

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