Created: 04 Aug 2014
Status: In Force (green)
Part: Part 6 (2009-12; Edition 2)
Links: #1444 Need to support fixed and SCT controlled Datasets
Paragraph: Table 11
Category: No impact on this part
Table 11, ConfDataSet specifies:
"If ConfDataSet is not specified, then the default value of its max attribute is equal to the number of preconfigured data sets, and they may only be modified".
After a while, it is not possible to remember which Datasets were preconfigured and which were not. Typical Use Case: for a retrofit of a Substation, the engineer gets the SCD file from the Substation which may have been engineered 5 years before by somebody else. He/she cannot know whether the Datasets engineered in the SCD file were originally predefined in the ICD/IID file, or whether they were added by the System Configuration Tool.
Add another element or attribute to tDataSet (chapter 9.3.7), e.g. "predefined" with "true", "false" and "unknown" as possible values. All Datasets defined by the IED configuration tool must have this set to true, all others false.
- For backwards compatibility reason, the default value is "unknown".
- An IED Configuration Tool which creates Datasets must mandatorily set these values to "true".
- A System Configuration Tool which creates Datasets must mandatorily set these values to "false".
- in case of value "unknown", the engineer using the System Configuration Tool must decide how to proceed.