OPC-UA.

A vendor-neutral protocol that lets machines and factory software exchange data and commands without a custom integration written for every pair. A press or finishing line listed as OPC-UA capable can usually be wired into an existing MES or monitoring system; one that is not needs a bespoke driver, or an operator retyping numbers into a screen. It is a data path, not a control philosophy: it says the machine can report, not that anyone is reading.