Answer / samer al-essa

I think the serial link it just general word, the MODBUS is
a protocol only which was developed by MODICON for their
own PLC, then it become a open stander for the open
communication

Answer / nitin

Modbus allows for communication between many devices
connected to the same network, for example a system that
measures temperature and humidity and communicates the
results to a computer. Modbus is often used to connect a
supervisory computer with a remote terminal unit (RTU) in
supervisory control and data acquisition (SCADA) systems.

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