Improvement #441: Limitations of one to one mapping between LNode and LN - IEC 61850 User Feedback Task Force - UCAIug Issue Tracking System

Improvement #441

Limitations of one to one mapping between LNode and LN

Added by Herbert Falk about 3 years ago. Updated 5 months ago.

Status:

Closed

Priority:

High

Category:

Standard clarification required

Start date:

Due date:

% Done:

Estimated time:

ID:

Source:

Vattenfall

TF Unique ID:

4 # Vattenfall

WG10 Proposal:

to be adressed to the 61850-6-100 (need a realistic date)6-100 states that n:1 relationship between LNodes and LNs is allowed and supported. No need to change the SCL scheme for this.

Estimated Completion:

End of 2023

Discuss in Upcoming Meeting:

To discuss in WG10:

Short Proposal:

Discussed with TF SCL function modelling.

Standard(s):

IEC 61850-90-30

Needs More Information:

Assigned TF:

61850-6-100 (Function modeling)

Description

The Standard requires a one to one mapping between LNode and LN. This creates serious limitations. Examples:
1. Let us assume vendor makes use of GGIO and represent a 32 bit BI/O Interface Card in the IED with the LN BIO32GGIO1. Now in my Substation section I define two Functions with Fun1/BIOGGIO1, Fun2/BIOGGIO2. Fun1 and Fun2 are two very different functions, but I have only one BIO card in my IED. Now I would like to map the LNode Fun1/BIOGGIO1 to LN BIO32GGIO1 and Fun2/BIOGGIO2 also to LN BIO32GGIO1. Naturally they use distinct Data Attributes.

2. It is easy to find a similar example for MMXU. Power Measurement and Current/ Voltage Measurement can be used in different Functions in the Single Line, but are using the same LN MMXU.

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Mapping LNode DOs to LN DOs when mapping is not direct from doName

Carlos Rodriguez del Castillo, 03/15/2022 11:08 AM

Related issues

Updated by Herbert Falk about 3 years ago

Priority changed from Normal to High

Updated by Carlos Rodriguez del Castillo about 3 years ago

Tracker changed from Bug to Improvement
Subject changed from The Standard requires a one to one mapping between LNode and LN. This creates serious limitations. Examples: 1. Let us assume ve to Limitations of one to one mapping between LNode and LN
Status changed from New to In Progress
Standard(s) set to IEC 61850-6-100
WG10 Proposal changed from to be adressed to the 61850-6-100 (need a realistic date) 6-100 states that n:1 relationship between LNodes and LNs is allowed and supported. No need to change the SCL scheme for this. to to be adressed to the 61850-6-100 (need a realistic date)6-100 states that n:1 relationship between LNodes and LNs is allowed and supported. No need to change the SCL scheme for this.
Discuss in Upcoming Meeting set to Yes

Updated by Carlos Rodriguez del Castillo about 3 years ago

Checking onde

Updated by Carlos Rodriguez del Castillo about 2 years ago

Status changed from In Progress to Resolved
Estimated Completion changed from Ed 3 to Ed 1
Discuss in Upcoming Meeting changed from Yes to No
To discuss in WG10 set to No

6-100 does not cover the issue completely. Relation LNode - LN is 1:1, but what it is possible is to map remaining DOs not covered by mapped LN to DOs of other LN.