1938   ds presence condition for Omulti objects is not correct

Created: 15 Oct 2024

Status: Conformance Test Preparation

Part: Part 7-4 (2020; Edition 2.1)

Links:

Page: All DOs with presence condition Omulti

Clause: All DOs with presence condition Omulti

Paragraph: All DOs with presence condition Omulti

Issue

The derived statistic presence condition for DO with nds presence condition Omulti is specified with O for statistical objects.
This is in contradiction with the statistical and historical data from IEC 61850-7.1. It should be Omulti as well.
Issue was raised by TF UT - # 7001, and discussed with TF UML.
Impacted DOs:
GAPC.ISCSO
GGIO.IntInd, GGIO.CntVal, GGIO.AnIn, GGIO.AnOut, GGIO.ISCSO
ITPC.TxCmdCnt, ITPC.RxCmdCnt
RREC.Rec1PhCnt, RREC.Rec3PhCnt

Proposal

Modify ds presence condition from O to OMulti for

GAPC.ISCSO
GGIO.IntInd, GGIO.CntVal, GGIO.AnIn, GGIO.AnOut, GGIO.ISCSO
ITPC.TxCmdCnt, ITPC.RxCmdCnt
RREC.Rec1PhCnt, RREC.Rec3PhCnt

Discussion Created Status
Change state to Conformance Test Preparation 09 Dec 24 Conformance Test Preparation
The technical error does not address any of the use cases of Part 7-1, Annex K.

Before tissue solution:
A client always supports "unknown DO" of known CDC. Client also understands the DOname with or without instance-number according to the current definition.
In this case the DO was already defined with a presence condition (Omulti).
Omulti in nds: client understands that the DO shall have an instance-number for nds.

Tissue solution:
ds will be changed from O in Omulti.
This change is understood as a renaming of statistical-DO-name by the means of an instance-number. Already used in the 61850 environment.

Therefor in summary: no compatibility issues.
02 Dec 24 Analysis Of Compatibility
Please find attached proposed draft as pdf-file. Changed text is marked in red. 27 Nov 24 Verify Draft Implementation
changed to draft implementation. 20 Nov 24 Drafting Implementation
open for discussion 30 Oct 24 Discussion (red)
change state to accepted 30 Oct 24 Accepted

 

Privacy | Contact | Disclaimer

Tissue DB v. 24.12.6.1