Monday, October 24, 2011

Cleanup of IEC 61850-7-4 Edition 2

The edition 2 of the base information models of IEC 61850 (published in 2010 as IEC 61850-7-4) has some definitions that need corrections. You can find the most crucial ones documented on the IEC 61850 Tissue Database (Technical Issues).

Click HERE for the complete list of part 7-4 Ed2.


Annex A defines the Interpretation of mode and behaviour

There is an obvious error in the table. When Beh=on AND incoming data with q=test THEN the expected behaviour of LN shall be “Processed as invalid”, and not “Processed as valid”.

Recommendation for readers of the various parts of IEC 61850: Please check the list of the Tissue Database in order to figure out the corrections made by the IEC 61850 community. As the above example shows, the corrections could be very critical!

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