Utilizing OPC-UA Methods

PLCnext Technology & PLCnext Controls
1

Hello, I have been trying to find an approach to use methods (ReadISDU/WriteISDU) on an IO-Link master’s OPC-UA server (IOL MA8 PN DI8).
I have a number of duplicate machines and would like to find a way to modify some IO-Link sensor parameters using the methods, with the OPC-UA server providing access to tags that will call those methods. It seems as though I’ll need some kind of external OPC client to the PLCnext runtime and tie that in.
Has anyone approached this? Any suggestions?

Reference: https://reference.opcfoundation.org/v104/IOLink/v100/docs/7.1.4/

2

It looks like this would be between the OPC UA server in the IO-Link master, and an OPC UA Client like UaExpert. If you can’t get those method calls working with UaExpert, then I can pass this question on to the support team for that product.
In any case, you’re right, only an OPC UA Client can call OPC UA methods.