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Uniqueness of BrowseNames
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Fabian Beitler
Lahnau
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06/08/2021 - 01:27
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Hello together,

 

I am a bit confused about the uniqueness of Browsenames in an addressspace.

As far as I understood the specs now, uniqueness is required in case of Properties. (In case of typedefinition it is just recommended).

 

Are there other contexts where the Browsename has to be unique?

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Randy Armstrong
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06/08/2021 - 05:41
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OPC UA is a full mesh network with overlapping hierarchies which means the BrowseName cannot be assumed to be unique.

The exceptions are:

1) Properties. All targets of HasProperty reference from any Node must have unique BrowseNames.

2) TypeDefinitions: All targets of hierarchical references from an ObjectType or VariableType must have unique names.

3) InstanceDeclarations: All targets of hierarchical references from an Object, Variable or Method InstanceDeclaration must have unique names.

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