Modbus between two FX30

Hello !
I have a very simple question, it’s possible to communicate with modbus between two FX30 (with node-red) ? One in the server and the other in client.

you can see here which acts as the slave:

Thanks, but I know the FX30 can be a slave. But I don’t know if it’s possible to create a modbus server (and make the FX30 to a server…)

The app already shows communication is OK as slave.
So you need to modify it to implement as server side.

Of course you need to use NULL modem connector so that two FX30 can be communicated.