The official XML document Opc_Ua_NodeSet2_Part3.xml says:
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<UAReferenceType BrowseName="HasSubtype" NodeId="i=45">
<DisplayName>HasSubtype</DisplayName>
<Description>The type for non-looping hierarchical references that are used to define sub types.</Description>
<References>
<Reference ReferenceType="HasSubtype" IsForward="false">i=34</Reference>
</References>
<InverseName>HasSupertype</InverseName> <--- *** !
</UAReferenceType>
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Table 109 – HasSubtype ReferenceType
Attributes Value
-----------------------
BrowseName HasSubtype
InverseName SubtypeOf <--- *** !
Symmetric False
IsAbstract False
Thank you for your responses.
[align=right]Key words: OPC UA, ReferenceTypes, HasSubtype, Errata, Standards, Specification, PDFs, XMLs, OPC Foundation, InverseName[/align]