Hello.

The relative browse path (second argument in UAFilterElements.SimpleAttribute) is a sequence of qualified names - i.e. they also have namespaces. Without specifying them, namespace 0 is assumed. In your case, "Param_2" is a browse name in namespace 1. Change "/Param_2" to "/1:Param2".

Best regards

Hello.

I will handle this, but please be patient. I have to leave now for business and will be back on Sunday.
Next time please start a new forum thread for a new issue (you can always refer back to the original issue via an URL).

Also, if you are getting an error, please post the error.

Best regards

Thank you. I got it working now, and I was able to reproduce the problem and find the cause.

We have a feature that automatically calls the "Refresh" method, so that you get the initial state of event condition after you connect. And the error comes from this call (UaExpert does not call it). So it is necessary to turn it off. We have flags/arguments for that (called AutoConditionRefresh).

In addition, with this turned off, it is necessary to specify at least one Select clause.

The resulting call looks like this:

 

      client.SubscribeEvent(endpointDescriptor, UAObjectIds.Server, 1000, new UAAttributeFieldCollection

      {

        // Select specific fields using standard operand symbols.

        UABaseEventObject.Operands.NodeId,

        UABaseEventObject.Operands.SourceNode,

        UABaseEventObject.Operands.SourceName,

        UABaseEventObject.Operands.Time,

 

        // Select specific fields using an event type ID and a simple relative path.

        UAFilterElements.SimpleAttribute(UAObjectTypeIds.BaseEventType, "/Message"),

        UAFilterElements.SimpleAttribute(UAObjectTypeIds.BaseEventType, "/Severity")

      }, autoConditionRefresh: false, null, null);

 

 

Best regards

Hello,
I received yur VPN client&instructions and I am able to connect the VPN and connect to the server.

I cannot, however, confirm that your server works with UaExpert. If it does for you, please share the detailed steps you are doing and the results.
In my test, UaExpert cannot subscribe to the alarms either.

Here is what I get with UaExpert:



I press Ignore.

Then



and in WireShark



Best regards

I will send you our IP address to the email address you used to register with this forum.

Can you make the server available to me (installable or container), or expose its endpoint for access from a specific IP address, for troubleshooting?

Best regards