OPC UA max count of transferred values in one cycle

[AlesChrast]

Dear all,

Setup:
CoreX 3 (2.06)  - OPC UA (2.6.3) - WinCC V8 Update 5

Our CoreX 3 communicates with HMI based on WinCC V8 Update 5.
We are on commissioning and during the process I noticed that when we open two screens with a lot of tags on the same PC (two different displays) some of the tags don't load. (0x04 - communication error, addressing error (information from WinCC). All the tags are called at the same time, so I assume the problem is due to the OPC UA server-side limit on the call values. Of course, correct me if I'm wrong.

Does OPC UA have any such limit that can be changed?

Attached printscreen where you can see the behavior

I would be very grateful for any advice. Thanks in advance

[Sgilk]

Hi @AlesChrast ,

Settings for the OPC UA server can be found in the ctrlX CORE Web UI.

How are these values being read? There are a number of settings that could affect this behavior.

[AlesChrast]

Yes, I Know about this settings. There is value Maximun number of Monitored Items Per Subcription, when I changed it, after refreshing the screen it went back to the previous value. I used the datalayer for changing this value, now it is working.