Each Node defined in this document references at least one ConformanceUnit (defined in OPC 10000-84). If a Server supports the ConformanceUnit, it shall expose the Nodes related to the ConformanceUnit in its AddressSpace. If two Nodes are exposed, all References between the Nodes defined in this document shall be exposed as well.

The relations between Nodes and ConformanceUnits are defined at the end of the tables defining Nodes, one row per ConformanceUnit.