CIM Issues » WG13 Issues

in regards to CommunicationIEC class and the “triple” association of WindPlantControlCommIEC.CommunicationIEC.

The WindPlantControlCommIEC class could be modified to use three separate associations, one for each communication module type (windPlantReferences, windPlantMeasurements and powerDeviceReferences) instead of the one multi-purpose association (WindPlantControlCommIEC.CommunicationIEC).
In that case the CommunicationIEC.kind parameter would not even be required because each association would determine the purpose of the communication object.

For example, use:
• WindPlantControlCommIEC.WindPlantReferences,
• WindPlantControlCommIEC.WindPlantMeasurements and
• WindPlantControlCommIEC.PowerDeviceReferences
Instead of the three WindPlantControlCommIEC.CommunicationIEC associations.

The current solution is atypical, because a triple-association is seldom used in CIM, and also clumsy to use, while still requiring a dedicated parameter to distinguish between communication modules that are basically of the same type.