Engineering Blog for High Performance Insights

We discuss MQTT relative to OPC UA. Not equivalents - each brings its own strengths and weaknesses to the OT environment

POSITION NOTE: Through EU legislated CRA (Cybersecurity Resiliency Act) scope is product level, efforts are made to assert compliance by way of systems architecture - will this assertion hold water? We explore this question. In late 2025, EtherCAT Technology Group consortium announced that its protocol meets the requirements of the EU Cyber Resilience Act. The initial statement, from the EtherCAT Technology Group, was carefully qualified — the protocol was said to meet IEC