There is few different ways to implement OPC UA Cleint, but what is way to define correct Node ID? when communication with 3th party OPC UA?
with UA expert is possible to browse all items and there is NodeID available, but it seem to NOT work with B&R OPC UA Client.
marcusbnr
(Marcus Mangel)
October 16, 2025, 8:29pm
2
Hi Kari,
When you’re mapping OPC UA variables from a 3rd party server, make sure to pay particular attention to the Namespace as well as the NodeID. All parts of the address need to be correct in order to read the data. As an example, take a look at this post for some tips: Mapp View with External OPC UA Servers (LENZE, SIEMENS) - Share Info & Ideas - B&R Community
In AS6 the function UA_Browse is added to the AsOpcUac library, which makes it possible to get the NodeID with this browse function.
B&R Online Help
AS4.12.8 is used. and communication with PLC not MappView
other end is Phoenix Contacts PCWorxUAServer
kovarj
(Jaroslav Kovar)
November 24, 2025, 8:13am
5
hi @Kari_Kivisto ,can you update us about status of your topic?
no update, currently need use “external” Beijers X2 device as Gateway, i would like to get direct conneciton but no solution yet.
kovarj
(Jaroslav Kovar)
November 24, 2025, 9:28am
7
According to the discussion, there is a way to use AS6 and UA_Browse. If this FUB is not part of AS4 now, I doubt that we can find a solution for you in AS4. I mark your answer as a “solution”, to be clear for others what is the status of your topic. Feel free to reopen it if anything new will be found.