OPC UA (also known as IEC 62451) is a machine-to-machine industrial communication protocol and the successor of OPC DA. Eclipse Milo provides a communication stack for developing solutions around OPC UA.
This talk will give a brief overview of OPC UA core functionality and shows, with some live coding, how an OPC UA client and server can be created with the Eclipse Milo SDK and what the core concept of OPC UA for data aquisition are. Retrieving telemetry data and issuing command and control. We will be testing this against an Eclipse 4DIAC instance running on a Raspberry Pi, which is OPC UA enabled to see how this would be done in a real, Industry 4.0, PLC based scenario.
You can check out the example repository on GitHub before the talk: ctron/milo-ece2017