Time-Sensitive Networking: a primer for automation engineers
Scheduled traffic, preemption, and time sync on standard Ethernet — what TSN guarantees, what it still needs, and where it meets the fieldbus.
OPC UA FX
OPC UA field-level communication and controller interoperability.
OPC UA Field eXchange: OPC Foundation specifications for controller-to-controller and controller-to-device field communication, including discovery, configuration, information modeling, and time-sensitive transport profiles.
See also: OPC UA · OPC UA PubSub · TSN
Use the concept: Industrial data connectivity: from register to consumer · Industrial data contract template
In depth
OPC UA security: a practical model for certificates, users, and trust
A field guide to OPC UA application identity, encrypted channels, user authentication, trust lists, and the operational work that keeps them healthy.
OPC UA, MQTT, and Sparkplug B: how they fit together
Three technologies that get compared as rivals but usually work as layers. What each one owns, and how to stop choosing between them.