OPC UA companion specifications: a guided tour
The base standard models anything; companion specs model your industry. How to find, read, and actually use them.
MTConnect
Open read-only standard for CNC machine data.
The open, read-only standard for machine-tool data: adapters talk controller protocols, agents serve normalized XML over HTTP (probe/current/sample). Covers execution state, positions, loads, and assets like cutting tools.
In depth
MTConnect: getting data off the machine tool
Adapters, agents, and streams — how the open machine-tool connectivity standard works and where it fits beside OPC UA.