Modbus is a Serial communications protocol and it is used for communicating with several industrial devices. It may run over RS485, Ethernet, or whatever hardware interface. If we have an ethernet connection between a lot of devices, we can use this hardware connection (eth), and over it, we can use our own protocol (custom protocol,…), or for instance, Modbus protocol. The way is the same as using RS485, but hardware connections will become much easier, the speed will be higher, and...
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