Ain't you the inventor for Modbus - Wikipedia https://en.wikiped

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Modbus - Wikipedia

https://en.wikipedia.org/wiki/Modbus
 

Modbus is a data communications protocol originally published by Modicon (now Schneider Electric) in 1979 for use with its programmable logic controllers (PLCs). Modbus has become a de facto standard communication protocol and is now a commonly available means of connecting industrial electronic devices.