I have a Modbus RTU network, and one RTU to TCP converter (Moxa MB3170). I would like to know if there is any change in the registers when converting from RTU to TCP.

Lets say, if for example the register 1 in the RTU device is for pressure what will happen in TCP. Will it remain the pressure at register 1?

Thanks in advance.
Francisco.

 

Yes it will remain the same. The address structure is exactly the same.

 

In a typical Modbus RTU to TCP gateway the data stays the same. It's just the wrapper around the data (for serial versus Ethernet) that changes. So, converting between RTU and Ethernet should not affect the register or coil data or the data table addresses.