In this comprehensive tutorial, we will explore the process of OPC UA data modelling. The tutorial will cover modeling a machine, creating an OPC UA server to simulate machinery values, reading data from the server and transmitting it downstream (e.g., to the cloud), and detecting anomalies. What is OPC UA? To answer this question, I like to cite Stefan Hoppe the President and Executive Director of the OPC Foundation: OPC Unified Architecture (OPC UA) is the information exchange standard for secure, reliable, manufacturer- and platform-independent industrial communications.