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The DATRAN OPC-UA Server is a protocol framework for enabling 3rd party applications to communicate with DATRAN using OPC-UA clients. DATRAN OPC-UA Server replaces OPC Data Access (DA). The DATRAN OPC-UA Server is built using the Unified Automation .NET SDK (Software Development Toolkit). Unified Automation are a leading provider of tools and services for OPC-UA technology.

  • Wonderware Intouch can now connect directly to the DATRAN OPC-UA Server with the Intouch OPC-UA Client.
  • Archestra System Platform has several options for connecting. It has an OPC-UA Client service that will connect directly or it can use the Wonderware Gateway OI Server.

Secure connections between the OPC-UA Server and the client application are created using certificates. It is possible to work without certificates if security is not an issue as the OPC-UA Server can create its own certificates (self signed).


DATRAN OPC-UA Server is typically used as a Microsoft Windows Service but can also be used as a standalone application for development and testing.

Little effort is required in the configuration of DATRAN OPC-UA Server with all settings performed in a single XML file. Security is provided through the use of OpenSSL Certificates.

Once configured, OPC-UA Clients can subscribe for the desired data tags with DATRAN-OPC-UA Server which then notifies the client when those tags change values.

DATRAN OPC-UA Server also supports the communications of RTU logged data from QTech RTUs. As RTU logged data is received by DATRAN in a batch, DATRAN OPC-UA Server streams the notifications to the OPC-UA Client in a way to ensure no data is missed.

The data streaming rate is configurable to allow for tuning to the Archestra system capability.


All QTech products may be subject to delivery advice when ordered.

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