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WG10 Future Work #5940

Multiple LNodes implemented by same LN

Added by Vladan Cvejic over 2 years ago. Updated 10 months ago.

Status:
Closed
Priority:
Normal
Assignee:
-
Start date:
03/26/2022
Due date:
% Done:

0%

Estimated time:
Source:
SCL IOP 2021
TF Unique ID:
WG10 Proposal:
Discuss in Upcoming Meeting:
No
Short Proposal:
Standard(s):

TR IEC 61850-90-30

Needs More Information:
No
Assigned TF:
61850-6-100 (Function modeling)
Target edition:
Not assigned

Description

From IOP discussions:
"When a specification defines multiple LNodes in the specification which are implemented by the same LN in a device, there is no standard way to represent this mapping. Part 6 is currently not clearly stating if multiple LNodes can be mapped to same LN or not

A good example for this need is the PTRC which could be define during specification into each protection function, and finally only one instance is defined in the protection device.

This could have an impact on functional naming if one LN implements multiple LNode"

But this is currently forbidden in part 6:
ยง9.2.6: "Therefore, the combination of iedName, ldInst, prefix, lnClass and lnInst shall be unique within all substation sections if iedName is not None."

Proposal descriptions

This problem is addressed in 6-100 by changing cardinality and introducing LNodeSpecNaming.
To be implemented in Edition 3 of part 6.

Related issues

Copied from IEC 61850 User Feedback Task Force - Feature #5331: Multiple LNodes implemented by same LNResolvedCamille Bloch03/26/2022

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