SofarSolar HYD inverter modbus AntiReflux Control

Can anyone help me?
I’m integrated and can read all data from inverter I need.
Now I would like to change AntiReflux_Control value but I’m unable to.

I see value that is inserted on inverter and if I change it on inverter, then I see changed value correctly.

number:
  - platform: modbus_controller
    modbus_controller_id: inverter
    id: power_reflux
    name: "Reflux (0 - can sell, 1 - no sell, 2 - limit)"
    address: 0x1023
    register_type: holding
    value_type: U_WORD
    min_value: 0
    max_value: 2

Now when I change it in mu home assistant then I see in logs

08:52:15	[D]	[number:054]	
'Reflux (0 - can sell, 1 - no sell, 2 - limit)' - Setting number value
08:52:15	[D]	[number:113]	
  New number value: 2.000000
08:52:15	[D]	[modbus.number:061]	
Updating register: connected Sensor=Reflux (0 - can sell, 1 - no sell, 2 - limit) start address=0x1023 register count=1 new value=2.00 (val=2.00)
08:52:15	[D]	[number:012]	
'Reflux (0 - can sell, 1 - no sell, 2 - limit)': Sending state 2.000000
08:52:17	[D]	[modbus_controller:032]	
Modbus command to device=1 register=0x1023 countdown=0 no response received - removed from send queue

And the value gets just changed back what it was before (as I understand, it does not reach to inverter at all).
What I’m doing wrong?

Hi Maarek!
Found the solution?

No I don’t have a solution.
With my hyd 8ktl-3ph it is not working,
with friends hyd 15ktl-3ph it works just fine.
I tried to update firmware, but no luck.

When I change reflux manually on my inverter, then I can see it change in homeassistant ESP also

Hi, are you able to see AntiReflux Power value in HA? Or could you set it like 0 - 6000 ?

@maarek HEY,
would you write littlebit more about hw you used to connect to the Inverter? Are you using modbus RTU connections? what adapter? where do you connect in inverter to? etc.
I was trying to do similar using mbpoll and direct wire connection to Sofar Solar 4.4KTLX-G3 on modbus pins but I have communication issues.
thanks for any hints.
-GG