Problems on All in One ESS Low voltage

[jopppar]

Hi,

I'm trying to connect my ESP32 to All in ONe ESS Low voltage hybrid inverter (AI-W5.1-12P3-EU-B).

I'm not getting connected and have tried the following:

• switch rx/tx
• Enable / diasable flow control
• Trying different modbus_controller_id
• Different power-supplys, cat6 cables, etc.

I have connected it to the modbus port in the inverter and checked all from baud to adress, etc.

I'm just getting these kind of errors:

The board i use is a Lilygo - and my code looks like this:

substitutions:
  modbus_controller_id: sg04lp3
  update_interval: 10sec
  
esphome:
  name: deye
  comment: "Deye Inverter Modbus/RS485"

  on_boot: 
    - priority: 600
      then: 
      - output.turn_on: pin16_high
      - output.turn_on: pin17_high
      - output.turn_on: pin19_high

esp32:
  board: esp32dev

output:
  - platform: gpio
    pin: 16
    id: pin16_high
    
  - platform: gpio
    pin: 17
    id: pin17_high
    
  - platform: gpio
    pin: 19
    id: pin19_high 

# Enable logging
logger:
  baud_rate: 0

# Enable Home Assistant API
api:
  encryption:
    key: "XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX"

ota:
  - platform: esphome
    password: "XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX"

wifi:
  ssid: !secret wifi_ssid
  password: !secret wifi_password
  power_save_mode: none

  # Enable fallback hotspot (captive portal) in case wifi connection fails
  ap:
    ssid: "Deye Fallback Hotspot"
    password: "12345678"

captive_portal:

time:
  - platform: homeassistant
    id: homeassistant_time

uart:
  id: mod_bus
  baud_rate: 9600
  tx_pin: 22
  rx_pin: 21
  stop_bits: 1

modbus:
  id: modbus1
# flow_control_pin: 4
 
modbus_controller:
  - id: ${modbus_controller_id}
    address: 0x1
    modbus_id: modbus1
    setup_priority: -10
    update_interval: ${update_interval}

switch:
### test start ###
  - platform: modbus_controller
    use_write_multiple: true
    modbus_controller_id: ${modbus_controller_id}
    name: "Battery - Lithium Mode"
    id: lithium_mode
    register_type: holding
    address: 98
    bitmask: 1
    icon: "mdi:toggle-switch"
    skip_updates: 50    
    on_turn_on: 
      lambda: |-
        auto call = id(batt_control).make_call();
        call.set_option("SoC mode");
        call.perform() ;
### test end ###

Before fighting anymore it woul be of great help to know if the inveter might not be compatible with this esphome-for-deye project?

Thanks in advance.