Wednesday, May 22, 2013

Semantic Models of IEC 61850 raise Interest in OPC UA Domain

One of the first true international standards in the domain of automation that defines rich semantic models is IEC 61850: LogicalNodes containing DataObjects containing DataAttribues … etc.



IEC 61850 models of all almost all application domains have been converted to UML (Enterprise Architect). The interest in the many crucial semantic models of IEC 61850 is growing all over!

From the UML representation of the IEC 61850 based class-models it is now possible to generate OPC UA Address Spaces!

UMLbaT—UML based Transformation

UMLbaT is an extension, a so-called Add-In, for Sparx Enterprise Architect. The Add-In is an advancement of existing CIMbaT (CIM based Transformation). With CIMbaT it is possible to generate OPC UA Address Spaces from CIM based class-models. Now, with UMLbaT, it's also possible to create OPC UA Address Spaces from IEC 61850 based class-models.

Visit the UMLbaT website (OFFIS Oldenburg) to get more details on the transformation.

Usually the various fieldbus consortia define fieldbus-specific “models” … not allowing interoperability at semantic level between different fieldbusses. IEC 61850 semantic models could now be accessed by MMS (as defined in IEC 61850-8-1) and OPC UA. The mapping of IEC 61850-7-2 ACSI to OPC is under discussion and may be published as IEC 61850-8-2.

In the mid 90s we had already a document IEC 61850-8-2 (SCSM: Mapping to Profibus FMS). See also discussion on further mappings in IEC 61400-25-4.

Let me know what you think about the transformation. Thanks.

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