1983   Configuration data-attributes(FC=CF) and there default values

Created: 07 Jul 2025

Status: Discussion (red)

Part: Part 6 (2025; Edition 2.2)

Links:

Page: 167

Clause: 9.5.4.4

Paragraph: 9.5.4.4

Issue

Enum have a default value in the DataTypeTemplate section if there is a <Val/> element, and/or there is a specific value with a <Val> element in the DOI/DAI section.

Without <Val/> there is no value in SCL.

The only specification is that values in the SCL shall match the values in the SCL. And that all ctlModel shall have a value in SCL (but not for example operTimeout/sboTimeout/Unit.multiplier/...).

Proposal

We should extend that to all CF attributes: e.g. All CF attributes need a value in SCL (either in DTT or DOI/DAI section).

Discussion Created Status
TPWG:

Probably should be discussed in WG10 as this is likely a large impact to implementors. 		11 Nov 25 Discussion (red)
ensure statement in part 6 to mandate without ambiguity the configuration of a value for CF/SP in SCD.

Will need an update of the SICS 		10 Oct 25 Discussion (red)
accepted 10 Oct 25 Accepted

TPWG agrees that all CF,SP, should have initial values recorded in the SCL file.

Note: this applies only to a fully configured device, i.e. not ICD or intermediate files.


Settings Groups seem to have details that need to be investigated further. It's not clear whether the complete number of SGs the device supports must be configured. Consider restricting activation to Groups that have been described in the SCL. 		02 Sep 25 Triage
In my opinion, a certification test-case should check this circumstance! 04 Aug 25 Triage
Please note the definition of FC=CF in IEC 61850 - Table 4.
"Initial value shall be as configured; value shall be non-volatile".
Therefore, per 7-2, there shall be a <Val> in the SCL file for each CF attributes.

23 Jul 25 Triage

 

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