We encountered an inconsistency in the Machinery/ProcessValues NodeSet. The ProcessValueType is defined as a subtype of the AnalogSignalType, which already contains an InstanceDeclaration AnalogSignal from the AnalogSignalVariableType. According to the Companion Specification, additional metadata (limit variables) are added to this InstanceDeclaration, and this is reflected in the NodeSet.

However, we have come across a specific VariableType in the NodeSet that is not mentioned in the Companion Specification and seems to represent this extended InstanceDeclaration. Its name is ProcessValueVariableType.

After a quick check with Heiko and Wolfgang this appears to be a left over from the work on the Information Model and needs to be removed.