Modbus configuration for Midea Fancoil

Hi,
I am an amatour and started to fiddle with some automation in my home.
I am trying to integrate my Fan coil unit with Home assistant.
I have installed Elfin-EW11 RS485 Wifi converter and plugged it to my fancoil.

my modbus.yaml looks like:
modbus
and in configuration.yaml is line: modbus: !include modbus.yaml

and modbus entitiy inside home assistant returns: unavaliable.

Can you help me understand what am I doing wrong? Any help would be great.

Restrition for new users is one embeded image in post so I put in new post rest of my configurations
Elfin-EW11 Serial settings:

Elfin-EW11 Communication settings:

Part of modbus documentation provided to my by manufacturer: