I have RPi 3B+ system. I want to send data from Siemens S7-1200 PLC to cloud server via RPi card.
I think to connect PLC & RPi by Modbus RS485 or Modbus TCP/IP.
Now, Ethernet port of RPi is in use of PC connection.
Our query is, can we use single Ethernet port of RPi card is work over a Modbus TCP/IP as well as Ethernet simultaneously?
If we want to data transfer by RS485, then what to do?