Feature #5331: Multiple LNodes implemented by same LN - IEC 61850 User Feedback Task Force - UCAIug Issue Tracking System

Feature #5331

Multiple LNodes implemented by same LN

Added by Camille Bloch over 2 years ago. Updated over 1 year ago.

Status:

Resolved

Priority:

Normal

Assignee:

Camille Bloch

Category:

Standard extension required

Start date:

03/26/2022

Due date:

% Done:

Estimated time:

ID:

Source:

SCL IOP 2021

TF Unique ID:

WG10 Proposal:

Estimated Completion:

Discuss in Upcoming Meeting:

To discuss in WG10:

Short Proposal:

Standard(s):

IEC 61850-6

Needs More Information:

Assigned TF:

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:
§9.2.6: "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 90-30 (former 6-100) by changing cardinality and introducing LNodeSpecNaming.
To be implemented in Edition 3 of part 6.

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