Dynamic field in OpcDataVariableNode|OPC UA Standard|Forum|OPC Foundation

Randy Armstrong said
It is not clear what you are trying to do. Can you create a diagram?

  

I’m trying to read a dynamic object with the OPC client. 

I have a class (called clsObj) with this attribute: 

• public int n
• public dynamic myObject

The myObject attribute is istantiated at runtime because the type of this attribute is created dynamically.

I have implemented an OPC Server with a Node, the OpcDataVariableNode is of the type clsObj.

This is the code of the CreateNodes function:

          var lgvNode = new OpcFolderNode(“Lgv”);           

          clsObj obj = new clsObj();

          var node = new OpcDataVariableNode<clsObj>(lgvNode, “LGV1”,obj);

          yield return lgvNode;  

At the server side I can see the value of the node LGV1 with the two attribute of the class clsObj .

After the Server creation, I’ve created an OPC Client and I read the value of the node with the ReadNode function. 

When I read the value of the LGV1 node I see only the value of the attribute n, the value of the field myObject is always null.

I’m using the SDK with c# to implement all the project.

Thanks.

This one: https://opcfoundation.org/prod…..and-server.