Ethernet protocol is not accessible while using Modbus

Official Hardware Opta
1

Hi,
Can anyone explain in detail what does it mean :

" Important: Once you use the Modbus Mode, the Ethernet port will be only dedicated to Modbus, so the Ethernet protocol is not accessible while using Modbus "

https://docs.arduino.cc/software/plc-ide/tutorials/modbus-setup#modbus-tcp-configuration

Does it mean I cant download program via Ethernet if Opta communicate with other device using Modbus TCP ?

2

It is telling you if you are using Modbus on that Arduino you cannot use the Ethernet because Modbus keeps it busy. If you do not have the Modbus loaded you can use the ethernet port. It is like driving a car, either your or somebody else can but not at the same time.

1 Like