You can bind to OPC-DA properties as well. For example, clicking on the Get button can obtain the value of the HighEU property.

Note: In OPC-UA Unified Architecture, there is no need for this – just use Read of any attribute of a node.

How to configure this feature:

On a TextBox, use "Bind to Point" command and select the OPC item and property you want to get (alternatively, use  "Edit Live Bindings" command, "Add" a PointBinding, and configure its ServerDescriptor and PropertyDescriptor).

In order to have the Get invoked when the button is pressed, set the ReadEventSource.SourceComponent to the Button control; the SourceMember of the ReadEventSource will be automatically set to the Click event. This causes the Click on the Button execute the Get operation, i.e. obtain the OPC property value and store it into the TextBox.