CIM Issues #6736
Quality61850 Class does not match the definition of Quality in IEC 61850-7-2
IEC 61970-301
Description
CIM definition is missing Inconsistent, Inaccurate Boolean
IEC 61850 does not define Source = DEFAULTED
Encoding is now
/*
* Bit(s) Name Value
0-1 Validity Good 0 0
Invalid 0 1
Reserved 1 0
Questionable 1 1
2 Overflow
3 OutofRange
4 BadReference
5 Oscillatory
6 Failure
7 OldData
8 Inconsistent
9 Inaccurate
10 Source Process 0
Substituted 1
11 Test
12 OperatorBlocked
*/
Proposed Solution
Update the CIM definition to match the IEC 61850 definition
Move the non-61850 attributes to MeasurementValueQuality
estimatorReplaced
suspect
Reference or replicate part of IEC 61850-7-2 Annex D and table D.1
D.1 Relation of the detailed quality identifiers with invalid or questionable quality
The reason for an invalid or questionable value of an attribute may be specified in more detail
with further quality identifiers. If one of these identifiers is set then validity shall be set to invalid
or questionable.
Decision
16-Sep-2024 Joint TF Hybrid Meeting - Minneapolis:
Reviewed together.
Action Item: Alex and Tom to check the issues and see what are low hanging fruits that can be easily fixed and which of the items will be followed up in the new TF subteam on the topic and which issues are to be assigned to CIM19
4-Dec-2024: TF13 call
Propose to get IEC 61850-7-2 Annex D table D.1 and see how many additional items we need to add. AI - Tom to give us some explanation.
18-Dec-2024: TF13 call
We had a final revisit of this Redmine issue and came to consensus that we can proceed to apply to the model class that exactly what we have in 61850. If we choose to extend this class then we must very clearly define what is extend and why and the specific usage of any extensions.