l
leonberger-m
·Posted in Communication

OPCUA: TranslateBrowsePathToNodeIds (Specification Part 4) fails

Hello, 

to identify the correct NodeId of an OPC-UA BrowsePath the OPC UA service called "TranslateBrowsePathsToNodeIds" (described in the OPC-UA specifiation part4) should be used. 

The OPC UA structure + variable "mamode" have been created within the KVD nodes.json
objects/Datalayer/test/mamode 

 

Starting from the root folder browsing and translation the path for 0bjects/8:Datalayer succeeds. 
(Therefore a small piece of software of the OPC UA toolkit is used) 
As a result the target ns=8, i=2000 is shown. 

 

But if we try to translate the path created within the KVD configuration (Objects/Datalayer/test/mamode) to retrieve the NodeId of this path the command fails with an error message provided by the OPC UA server within the CtrlX core. 

The error message: StatusCode=Bad_NoMatch (0x806F0000) "The requested operation has no match to return." is shown for every folder/structure except of Objects/8:Datalayer.

Spelling and NamespaceIndex are correct and have been verified several times. But it seems that something goes wrong underneath the DataLayer which avoids a correct execution/translation using the "TranslateBrowsePathToNodeIds". 

Does anyone have any experience using this OPC UA specified command? 
Thanks for your help.

Markus

 

 

 

Best reply by NoRisk4Project

Hello Markus,

we have a bug in our implementation of the service "TranslateBrowsePathToNodeIds", therefore it's actual not working for variables. A bugfix is currently not prioritized.

Do you need this function for your certain/actual project?

greetings

Christian

View original
2 replies