01Read, don't interrupt
The node reads the PLC's registers and the machine's signals without inserting itself into the control path. Nothing about the certified, deterministic loop changes — which is why a retrofit doesn't require re-validation.
02Add the layer that was missing
On that data, the node runs on-device models and bridges to dashboards. Suddenly the line has the analytics, alerting and connectivity that would have cost a full control upgrade — on hardware that costs a fraction.
Common questions
The ones we're asked on every first call.
Almost always. If it exposes signals over a fieldbus (Modbus, EtherNet/IP, Profinet) or accessible I/O, a Pi node can read it. Even very old serial gear is reachable over RS-485.
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