Hi,

The OPC-UA specifications define a Method NodeClass: https://reference.opcfoundation.org/v104/Core/docs/Part3/5.7/

A method defines a callable function which can be invoked using the Call Service mechanism defined here: https://reference.opcfoundation.org/v104/Core/docs/Part4/

In practice this means I can implement a method in my OPC-UA server and invoke it from an OPC-UA client or SCADA application.

I can't find a way to do this with VTScada, for example by adding a button and linking the button click to the method execution. I've been able to do it with other products (with a bit of difficulty) is it supported?

Thanks!

Unfortunately OPC UA Method Calls are not supported at this time. Please contact support to raise a Support Request to add this as a new feature.