Is UMH able to act as an OPC-UA client to call methods on a server for example whenever there's a contract coming from an MES, the method "store" on an OPC-UA server is called. Is Benthos-UMH generally able to call methods on an OPC-UA server

Yes @Nils, Yannic from UMH here. At the moment, we CAN NOT perform OPC-UA method calls. But 1. the underlying library, which we use (gopcua) can already do this 2. this was already requested by some partners of us and is on our roadmap. Until now, it did not have the highest priority But once more requests like this are coming in, we will re-evaluate the priority on this 🙂

This is not currently supported. If i remember correct the library supports it but we have not implemented it and it has only been requested by 2 people and only for testing. So i am not sure if/when this will be implemented