UA-.NET-Legacy | OPC Foundation Unified Architecture .NET Reference | DevOps library
kandi X-RAY | UA-.NET-Legacy Summary
kandi X-RAY | UA-.NET-Legacy Summary
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QUESTION
I'm trying to call TranslateBrowsePathsToNodeIds
method (defined on View Service Set of OPC-UA standard) using OPC-UA client against Simatic ProcessHistorian (Simatic PCS 7 version 8.1).
When I browse the server with Sample Client from UA-.NET I can see two nodes under Objects root:
- Server
- Process Historian {7a3ea44f-b495-414c-84f9-7498095d43bd}
For Server
node the method works fine but I can't figure out a way how to get nodes down the tree starting from Process Historian {7a3ea44f-b495-414c-84f9-7498095d43bd}
(which is actually the data model).
The code looks like this (C#):
...ANSWER
Answered 2018-Feb-06 at 03:21I found that RelativePath.Parse follows the string format found in Part 4 - Services Annex A.2.
Try prefixing with forward slash, eg "/3:Process Historian {7a3ea44f-b495-414c-84f9-7498095d43bd}"
ps. i see that if you leave off the "3:" the server will assume you meant "0:"
pps. Use the version of Parse with only arguments string, ITypeTable. You don't need to translate Namespaces in this case.
ppps: Most browse names i see have no whitespace. I wonder why?
Try reading the server object?
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