How to convert Modbus RTU to Modbus TCP/IP?

Scenario 1 : Multiple Master Modbus polling (MOXA MB3170)

Scenario 2 : Slave Modbus Serial to Master Modbus Serial via Ethernet Converter (MOXA MGate MB3XXX Series)
Modbus

Scenario 3 : Multiple Master (Serial & TCP/IP) Modbus polling (MOXA MB3270/3660)

Scenario 4 : Master Modbus polling via VirtualCOM (MOXA MB3170)

Scenario 5 : Multiple Master Modbus polling (MOXA MB3480, 4 Serial port model)

Scenario 6 : Multiple Master in same Subnet Modbus polling (MOXA MB3660 series, 8 Serial port model)

Scenario 7 : Multiple Master in Different Subnet Modbus polling (MOXA MB3660 series, 8 Serial port model)