1558 Ambiguous object references
This tissue has following status: blue
Created: 21 Sep 2016
Category: No impact on this part
Issue: What means reference E1QA5/XSWI.Pos.stVal if LDevice E1QA5 contains two switches: XSWI1 and XSWI2 (two or more instances).
it is a wrong reference. An IED (LD) related reference always shall contain the LN instance number, even if only one instance of the LN class exists.(exception: LLN0, which has no instance number).
In contrast function related names shall NOT contain the LN instance number. In this case the structure of the Substation / Process hierarchy referencing the LN shall assure name uniqueness.
|22 Sep 16
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