How to differentiate between branch and leaf with identical names when a client calls to getitemid() (OPC DA)|Classic OPC: DA, A&E, HDA, XML-DA, etc.|Forum|OPC Foundation

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How to differentiate between branch and leaf with identical names when a client calls to getitemid() (OPC DA)
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Zohar Tsioni
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09/15/2024 - 23:26
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Hi all

I have an OPC DA server which has a leaf named “X” at the root level. in addition, at the root level, I have a branch named “X” (identical names). How can I differentiate between the two when a client calls to “GetItemID()”? In other words, how can I know which one the client applied to?

 

Regards

Zohar

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Randy Armstrong
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09/18/2024 - 21:14
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The should be the same. i.e. X is a Branch that also has a Value (a.k.a. Leaf).

The DA3 makes this use case clearer than DA2

See 4.3.6.1 IOPCBrowse:: Browse

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