Articles: Industry by Naasson
Production as a described system
Industry by NaassonWhat to do with a machine that reports nothing
Three options, and one of them is admitting there will be no telemetry. When each applies, and why an external node is usually the right answer.
Modbus: old, boring and everywhere
A protocol from the late seventies with no types, no structure description and no security. And the only one spoken by almost everything already on site.
RS-485: why the shop floor uses a bus, not a star
Industrial devices share one line for a reason that has nothing to do with saving cable. Knowing that reason explains half the problems on a site.