Must inverter ESPHome configuration for ESP32

inverter-monitor.yaml

substitutions:
  inverter_id: inverter
  updates: 5s
  api_key: xxx
  ota_password: xxx

esphome:
  name: inverter-monitor
  comment: "Inverter monitor"

esp32:
  board: esp32dev
  framework:
    type: esp-idf

wifi:
  ssid: !secret wifi_ssid
  password: !secret wifi_password

captive_portal:

logger:
  level: DEBUG

api:
  encryption:
    key: ${api_key}

ota:
  password: ${ota_password}

uart:
  - id: uart_inverter
    baud_rate: 19200
    tx_pin: GPIO19
    rx_pin: GPIO18
    stop_bits: 1
    parity: NONE
    data_bits: 8
    debug:
      direction: BOTH
      dummy_receiver: false

modbus:
  - id: modbus_inverter
    uart_id: uart_inverter
    send_wait_time: 200ms

modbus_controller:
  - id: must_inverter
    address: 0x04
    modbus_id: modbus_inverter
    command_throttle: 200ms
    setup_priority: -10
    update_interval: ${updates}

sensor:
  # charger sensors
  - platform: modbus_controller
    modbus_controller_id: must_inverter
    address: 15201
    name: "PV Charger Workstate"
    register_type: holding

  - platform: modbus_controller
    modbus_controller_id: must_inverter
    address: 15202
    name: "PV Charger MPPT state"
    register_type: holding

  - platform: modbus_controller
    modbus_controller_id: must_inverter
    address: 15203
    name: "PV Charger Charging state"
    register_type: holding
    
  - platform: modbus_controller
    modbus_controller_id: must_inverter
    address: 15205
    name: "PV Charger Voltage"
    register_type: holding
    unit_of_measurement: "V"
    accuracy_decimals: 1
    icon: mdi:sine-wave
    filters:
      multiply: 0.1

  - platform: modbus_controller
    modbus_controller_id: must_inverter
    address: 15206
    name: "PV Charger Battery voltage"
    register_type: holding
    unit_of_measurement: "V"
    accuracy_decimals: 1
    icon: mdi:sine-wave
    filters:
      multiply: 0.1

  - platform: modbus_controller
    modbus_controller_id: must_inverter
    address: 15207
    name: "PV Charger Current"
    register_type: holding
    unit_of_measurement: "A"
    accuracy_decimals: 1
    icon: mdi:current-dc
    filters:
      multiply: 0.1

  - platform: modbus_controller
    modbus_controller_id: must_inverter
    address: 15208
    register_type: holding
    name: "PV Charger power"
    unit_of_measurement: "W"
    accuracy_decimals: 1
    icon: mdi:flash
  
  - platform: modbus_controller
    modbus_controller_id: must_inverter
    address: 15209
    register_type: holding
    name: "PV Charger Radiator temp"
    unit_of_measurement: "°C"
    accuracy_decimals: 1
    icon: mdi:temperature-celsius

  # - platform: modbus_controller
  #   modbus_controller_id: must_inverter
  #   address: 15210
  #   register_type: holding
  #   name: "PV Charger External temp"
  #   unit_of_measurement: "°C"
  #   accuracy_decimals: 1
  #   icon: mdi:temperature-celsius

  - platform: modbus_controller
    modbus_controller_id: must_inverter
    address: 15212
    register_type: holding
    name: "PV Relay"
    icon: mdi:electric-switch

  - platform: modbus_controller
    modbus_controller_id: must_inverter
    address: 15217
    register_type: holding
    id: charger_total_mwh
    internal: true

  - platform: modbus_controller
    modbus_controller_id: must_inverter
    address: 15218
    register_type: holding
    id: charger_total_kwh
    internal: true
    filters:
      multiply: 0.1

  - platform: template
    name: "PV Charger Accumulated charger power"
    unit_of_measurement: kWh
    lambda: !lambda 'return (id(charger_total_mwh).state * 1000.0 + id(charger_total_kwh).state );'
    accuracy_decimals: 1
  
  - platform: modbus_controller
    modbus_controller_id: must_inverter
    address: 15219
    register_type: holding
    name: "PV Charger Accumulated day"
    unit_of_measurement: "W"
    accuracy_decimals: 1
    icon: mdi:flash

  - platform: modbus_controller
    modbus_controller_id: must_inverter
    address: 15220
    register_type: holding
    name: "PV Charger Accumulated hour"
    unit_of_measurement: "W"
    accuracy_decimals: 1
    icon: mdi:flash

  - platform: modbus_controller
    modbus_controller_id: must_inverter
    address: 15221
    register_type: holding
    name: "PV Charger Accumulated minute"
    unit_of_measurement: "W"
    accuracy_decimals: 1
    icon: mdi:flash

# inverter sensors
  - platform: modbus_controller
    modbus_controller_id: must_inverter
    address: 25201
    register_type: holding
    name: "Inverter Work state"

  - platform: modbus_controller
    modbus_controller_id: must_inverter
    address: 25205
    name: "Inverter Battery Voltage"
    register_type: holding
    unit_of_measurement: "V"
    accuracy_decimals: 1
    icon: mdi:sine-wave
    filters:
      multiply: 0.1

  - platform: modbus_controller
    modbus_controller_id: must_inverter
    address: 25206
    name: "Inverter Voltage"
    register_type: holding
    unit_of_measurement: "V"
    accuracy_decimals: 1
    icon: mdi:sine-wave
    filters:
      multiply: 0.1

  - platform: modbus_controller
    modbus_controller_id: must_inverter
    address: 25207
    name: "Inverter Grid voltage"
    register_type: holding
    unit_of_measurement: "V"
    accuracy_decimals: 1
    icon: mdi:sine-wave
    filters:
      multiply: 0.1

  - platform: modbus_controller
    modbus_controller_id: must_inverter
    address: 25207
    name: "Inverter Grid voltage"
    register_type: holding
    unit_of_measurement: "V"
    accuracy_decimals: 1
    icon: mdi:sine-wave
    filters:
      multiply: 0.1

  - platform: modbus_controller
    modbus_controller_id: must_inverter
    address: 25208
    name: "Inverter BUS Voltage"
    register_type: holding
    unit_of_measurement: "V"
    accuracy_decimals: 1
    icon: mdi:sine-wave
    filters:
      multiply: 0.1

  - platform: modbus_controller
    modbus_controller_id: must_inverter
    address: 25209
    name: "Inverter Control current"
    register_type: holding
    unit_of_measurement: "A"
    accuracy_decimals: 1
    icon: mdi:current-dc
    filters:
      multiply: 0.1

  - platform: modbus_controller
    modbus_controller_id: must_inverter
    address: 25210
    name: "Inverter Current"
    register_type: holding
    unit_of_measurement: "A"
    accuracy_decimals: 1
    icon: mdi:current-dc
    filters:
      multiply: 0.1

  - platform: modbus_controller
    modbus_controller_id: must_inverter
    address: 25211
    name: "Inverter Grid current"
    register_type: holding
    unit_of_measurement: "A"
    accuracy_decimals: 1
    icon: mdi:current-ac
    filters:
      multiply: 0.1

  - platform: modbus_controller
    modbus_controller_id: must_inverter
    address: 25212
    name: "Inverter Load current"
    register_type: holding
    unit_of_measurement: "A"
    accuracy_decimals: 1
    icon: mdi:current-ac
    filters:
      multiply: 0.1

  - platform: modbus_controller
    modbus_controller_id: must_inverter
    address: 25213
    name: "Inverter Power"
    register_type: holding
    unit_of_measurement: "W"
    accuracy_decimals: 1
    icon: mdi:flash

  - platform: modbus_controller
    modbus_controller_id: must_inverter
    address: 25214
    name: "Inverter Grid power"
    register_type: holding
    unit_of_measurement: "W"
    accuracy_decimals: 1
    value_type: S_WORD
    icon: mdi:flash

  - platform: modbus_controller
    modbus_controller_id: must_inverter
    address: 25215
    name: "Inverter Load power"
    register_type: holding
    unit_of_measurement: "W"
    accuracy_decimals: 1
    icon: mdi:flash

  - platform: modbus_controller
    modbus_controller_id: must_inverter
    address: 25216
    name: "Inverter System load"
    register_type: holding
    unit_of_measurement: "%"
    accuracy_decimals: 1
    icon: mdi:flash

    # MOST INFO

  - platform: modbus_controller
    modbus_controller_id: must_inverter
    address: 25233
    register_type: holding
    name: "Inverter AC radiator temp"
    accuracy_decimals: 1
    unit_of_measurement: "°C"
    icon: mdi:temperature-celsius

  - platform: modbus_controller
    modbus_controller_id: must_inverter
    address: 25234
    register_type: holding
    name: "Inverter Transformer temp"
    unit_of_measurement: "°C"
    accuracy_decimals: 1
    icon: mdi:temperature-celsius

  - platform: modbus_controller
    modbus_controller_id: must_inverter
    address: 25235
    register_type: holding
    name: "Inverter DC Radiator temp"
    unit_of_measurement: "°C"
    accuracy_decimals: 1
    icon: mdi:temperature-celsius

  - platform: modbus_controller
    modbus_controller_id: must_inverter
    address: 25237
    register_type: holding
    name: "Inverter Relay state"
    icon: mdi:electric-switch

  - platform: modbus_controller
    modbus_controller_id: must_inverter
    address: 25238
    register_type: holding
    name: "Inverter Relay state Grid"
    icon: mdi:electric-switch
    
  - platform: modbus_controller
    modbus_controller_id: must_inverter
    address: 25239
    register_type: holding
    name: "Inverter Relay state Load"
    icon: mdi:electric-switch
    
  - platform: modbus_controller
    modbus_controller_id: must_inverter
    address: 25240
    register_type: holding
    name: "Inverter Relay state NLine"
    icon: mdi:electric-switch

  - platform: modbus_controller
    modbus_controller_id: must_inverter
    address: 25241
    register_type: holding
    name: "Inverter Relay state DC"
    icon: mdi:electric-switch
    
  - platform: modbus_controller
    modbus_controller_id: must_inverter
    address: 25242
    register_type: holding
    name: "Inverter Relay state Earth"
    icon: mdi:electric-switch

# Inverter Accumulated discharge power
  - platform: modbus_controller
    modbus_controller_id: must_inverter
    address: 25247
    register_type: holding
    id: discharger_total_mwh
    internal: true

  - platform: modbus_controller
    modbus_controller_id: must_inverter
    address: 25248
    register_type: holding
    id: discharger_total_kwh
    internal: true
    filters:
      multiply: 0.1

  - platform: template
    name: "Accumulated discharger power"
    unit_of_measurement: kWh
    accuracy_decimals: 1
    lambda: !lambda 'return (id(discharger_total_mwh).state * 1000.0 + id(discharger_total_kwh).state);'

# Inverter Accumulated buy power
  - platform: modbus_controller
    modbus_controller_id: must_inverter
    address: 25249
    register_type: holding
    id: buy_mwh
    internal: true
  
  - platform: modbus_controller
    modbus_controller_id: must_inverter
    address: 25250
    register_type: holding
    id: buy_kwh
    internal: true
    filters:
      multiply: 0.1
  
  - platform: template
    name: "Accumulated buy power"
    unit_of_measurement: kWh
    lambda: |-
     return (id(buy_mwh).state * 1000.0 + id(buy_kwh).state);
    accuracy_decimals: 1

# Inverter Accumulated sell power
  - platform: modbus_controller
    modbus_controller_id: must_inverter
    address: 25251
    register_type: holding
    id: sell_mwh

  - platform: modbus_controller
    modbus_controller_id: must_inverter
    address: 25252
    register_type: holding
    id: sell_kwh
    filters:
      multiply: 0.1

  - platform: template
    name: "Accumulated sell power"
    unit_of_measurement: kWh
    accuracy_decimals: 1
    lambda: !lambda return (id(sell_mwh).state * 1000.0 + id(sell_kwh).state);

# Inverter Accumulated load power
  - platform: modbus_controller
    modbus_controller_id: must_inverter
    address: 25253
    register_type: holding
    id: load_mwh
    internal: True

  - platform: modbus_controller
    modbus_controller_id: must_inverter
    address: 25254
    register_type: holding
    id: load_kwh
    internal: True
    filters:
      multiply: 0.1
  
  - platform: template
    name: "Accumulated load power"
    unit_of_measurement: kWh
    accuracy_decimals: 1
    lambda: !lambda return (id(load_mwh).state * 1000.0 + id(load_kwh).state);

  - platform: modbus_controller
    modbus_controller_id: must_inverter
    address: 25273
    register_type: holding
    value_type: S_WORD
    name: "Inverter Battery power"
    unit_of_measurement: "W"
    accuracy_decimals: 1
    icon: mdi:flash

  - platform: modbus_controller
    modbus_controller_id: must_inverter
    address: 25274
    register_type: holding
    value_type: S_WORD
    name: "Inverter Battery current"
    unit_of_measurement: "A"
    accuracy_decimals: 1
    icon: mdi:current-dc

  - platform: modbus_controller
    modbus_controller_id: must_inverter
    address: 25275
    register_type: holding
    value_type: S_WORD
    name: "Inverter Battery grade"
    unit_of_measurement: "V"
    icon: mdi:alpha-V

  - platform: modbus_controller
    modbus_controller_id: must_inverter
    address: 25277
    register_type: holding
    name: "Inverter Rated power"
    unit_of_measurement: "W"
    accuracy_decimals: 1
    icon: mdi:flash


select:
  - platform: modbus_controller
    modbus_controller_id: must_inverter
    id: energy_use_mode
    name: "Inverter Energy use mode (parameter 00)"
    address: 20109
    optionsmap:
      "SBU (Solar/battery/utility)": 1
      "SUB (Solar/utility/battery)": 2
      "UTI (Utility only)": 3
      "SOL (Solar only)": 4

  - platform: modbus_controller
    modbus_controller_id: must_inverter
    id: charger_source_priority
    name: "Inverter Charger source priority (parameter 10)"
    address: 20143
    optionsmap:
      "CSO (Solar first)": 0
      "SNU (Solar and utility)": 2
      "OSO (Solar only)": 3

  - platform: modbus_controller
    modbus_controller_id: must_inverter
    address: 20111
    id: inverter_ac_input_voltage_range
    name: "Inverter AC input voltage range (02)"
    optionsmap:
      "VDE (184-253VAC)": 0
      "UPS (170-280VAC)": 1
      "APL (90-280VAC)": 2
      "GEN (Generator)": 3


number:
  - platform: modbus_controller
    id: batt_float_voltage
    name: "PV Charger Float voltage"
    unit_of_measurement: "V"
    address: 10103
    value_type: U_WORD
    multiply: 10

  - platform: modbus_controller
    id: batt_absorb_voltage
    name: "PV Charger Absorb voltage"
    unit_of_measurement: "V"
    address: 10104
    value_type: U_WORD
    multiply: 10

  - platform: modbus_controller
    id: batt_stop_dischg
    name: "Inverter Battery stop discharging voltage"
    unit_of_measurement: "V"
    address: 20118
    value_type: U_WORD
    lambda: "return x * 0.1; "
    write_lambda: |-
      return x * 10 ;

  - platform: modbus_controller
    id: batt_stop_chg
    name: "Inverter Battery stop charging voltage"
    unit_of_measurement: "V"
    address: 20119
    value_type: U_WORD
    multiply: 10

  - platform: modbus_controller
    id: batt_low_voltage
    name: "Inverter Battery low voltage"
    unit_of_measurement: "V"
    address: 20127
    value_type: U_WORD
    multiply: 10

  - platform: modbus_controller
    id: batt_high_voltage
    name: "Inverter Battery high voltage"
    unit_of_measurement: "V"
    address: 20128
    value_type: U_WORD
    multiply: 10

  - platform: modbus_controller
    id: solar_charger_current
    name: "Inverter Charger current"
    unit_of_measurement: "A"
    address: 20132
    value_type: U_WORD
    multiply: 10

Already tried that,, i will try another RS485 to UART board and update

I used this one, works ok: https://www.aliexpress.com/item/1005001621746811.html
I also connected it to the USB port of the inverter. It uses the same RS485 (at least on the PV1800 series, as far as I know), but additionally has 5V to power the ESP and adapter, so you don't need to use an additional power supply.
So, in my case, 5V connected to the ESP, GND connected to the RS485 converter board GND and to the GND of the ESP, and middle USB pins to A/B (not sure which one is which, try to swap if it does not work). The 3.3V from the ESP connected to the other side of the RS485 converter board to the VCC, RX/TX to the ESP and swapped, and the ESP GND to the board GND.

Вітаю! Тобто ви підключили плату RS485 не до RJ-45 а до порта USB Type-A (позначений як USB WiFi) ?

Привіт. У вас вийшло зробити комунікацію таким чином через USB WiFi порт? Я всі комбінації A+/B- та Rx/Tx спробував, не працює

якщо питання до мене, то так, у мене вийшло.
Поки до HomeAssistamt не підключив, але віддалено оригінальним софтом Solar Power Monitor від Must я підключився через WiFi (ESP + esp-link) до інвертора Must PV18-3224.

У вас вийшло зробити комунікацію таким чином через USB WiFi порт?
Я всі комбінації A+/B- та Rx/Tx спробував, не працює

Яка саме модель інвертора у вас?

MUST pv18-5248 pro

У мене такий же інвертор, все працює.

Video

В червоній термоусадці модуль RS485 - TTL, посилання кидав вище.

У вас вийшло зробити комунікацію таким чином через USB WiFi порт?
Я всі комбінації A+/B- та Rx/Tx спробував, не працює

Яка саме модель інвертора у вас?

MUST pv18-5248 pro

У мене такий же інвертор, все працює.

Video

В червоній термоусадці модуль RS485 - TTL, посилання кидав вище.

Доброї ночі. Щось я не зрозумів, у вас на ESP32 все базовано?

У вас вийшло зробити комунікацію таким чином через USB WiFi порт?
Я всі комбінації A+/B- та Rx/Tx спробував, не працює

Яка саме модель інвертора у вас?

MUST pv18-5248 pro

У мене такий же інвертор, все працює.
Video
В червоній термоусадці модуль RS485 - TTL, посилання кидав вище.

Доброї ночі. Щось я не зрозумів, у вас на ESP32 все базовано?

Так. Конкретно на відео - WT32, але поки що на вай-фаї

Thanks for this file!. I confirm it is working perfectly fine in my MUST PV18-3024 VHM
You have a couple of additional registers missing although:
address: 25225
name: "Inverter frequency"
unit_of_measurement: "Hz"

address: 25226
name: "Grid frequency"

У вас вийшло зробити комунікацію таким чином через USB WiFi порт?
Я всі комбінації A+/B- та Rx/Tx спробував, не працює

Яка саме модель інвертора у вас?

MUST pv18-5248 pro

У мене такий же інвертор, все працює.
Video
В червоній термоусадці модуль RS485 - TTL, посилання кидав вище.

Доброї ночі. Щось я не зрозумів, у вас на ESP32 все базовано?

Так. Конкретно на відео - WT32, але поки що на вай-фаї

Тобто це така сама solar2mqtt? У мене так і не виходить одружити з моїм anenji. 6500вт 48в. У нього на борту 232 та 485 порти, я правильно зрозумів, 232 до вайфай, у мене він є та працює (заводський) але додтаок та сервери ... це мрак. У мене також є налаштований та працюючий home assistant. 485 для підключення фірмових батарей? Я тільки сьогодні побачив цей пост, допаяв до esp8266 (nodeMCU) все як у вас, ткнув в 485 - нема (перетворювач у мене э). 232 - так само, також э саморобний перетворювач на max232 та заводський. Байдуже, тиша. Можливо є якісь інші распіновки? але ж живлення та земля співпадають у мене 4й 12в, 8й - земля. Це я про 232. У вас є схема та бінарний файл для вашого девайсу? Можливо є для 8266?

У вас вийшло зробити комунікацію таким чином через USB WiFi порт?
Я всі комбінації A+/B- та Rx/Tx спробував, не працює

Яка саме модель інвертора у вас?

MUST pv18-5248 pro

У мене такий же інвертор, все працює.

Video

В червоній термоусадці модуль RS485 - TTL, посилання кидав вище.

Такий же інвертор, така сама RS485-TTL, на базі esp32 wroom32 (gpio 1/3 у якості tx/rx) - все перепробував, досі отримую

[21:33:24][D][modbus_controller:038]: Modbus command to device=4 register=0x6295 no response received - removed from send queue

для всіх каналів. Вже не знаю яку ще комбінацію спробувати.

UPD: ще отакий побачив ворнінг

[22:59:44][W][modbus_controller:027]: Modbus device=4 set offline

UPD: спробував інший rs-485-ttl та А/В брати з перших пінів RJ45, а не USB WiFi, результат такий самий

Такий же інвертор, така сама RS485-TTL, на базі esp32 wroom32 (gpio 1/3 у якості tx/rx) - все перепробував, досі отримую

[21:33:24][D][modbus_controller:038]: Modbus command to device=4 register=0x6295 no response received - removed from send queue

для всіх каналів. Вже не знаю яку ще комбінацію спробувати.

UPD: ще отакий побачив ворнінг

[22:59:44][W][modbus_controller:027]: Modbus device=4 set offline

UPD: спробував інший rs-485-ttl та А/В брати з перших пінів RJ45, а не USB WiFi, результат такий самий

Я не читав ще про Wroom плату, але у мене була схожа ситуація з NodeMCU (ESP8266). Проблема у тому, що на платі для розробок NodeMCU вже є модуль USB-UART і він під'єднаний до RX/TX контролера. І виявляється що він постійно тримає RX в стані HIGH. Тобто використовувати RX пін напряму майже не можливо.
Можливо з wroom платою така сама засада ?

Такий же інвертор, така сама RS485-TTL, на базі esp32 wroom32 (gpio 1/3 у якості tx/rx) - все перепробував, досі отримую

[21:33:24][D][modbus_controller:038]: Modbus command to device=4 register=0x6295 no response received - removed from send queue

для всіх каналів. Вже не знаю яку ще комбінацію спробувати.
UPD: ще отакий побачив ворнінг

[22:59:44][W][modbus_controller:027]: Modbus device=4 set offline

UPD: спробував інший rs-485-ttl та А/В брати з перших пінів RJ45, а не USB WiFi, результат такий самий

Я не читав ще про Wroom плату, але у мене була схожа ситуація з NodeMCU (ESP8266). Проблема у тому, що на платі для розробок NodeMCU вже є модуль USB-UART і він під'єднаний до RX/TX контролера. І виявляється що він постійно тримає RX в стані HIGH. Тобто використовувати RX пін напряму майже не можливо. Можливо з wroom платою така сама засада ?

Дійсно, перекинув на інші gpio піни які вміють UART і запрацювало.
Велика подяка вам і автору конфіга!

Hello!
Your config works for me only once :)

Now it logs out this:

21:46:07 | [E] | [json:041] | Could not allocate memory for JSON document! Requested 512 bytes, largest free heap block: 512 bytes
21:46:07 | [E] | [json:041] | Could not allocate memory for JSON document! Requested 512 bytes, largest free heap block: 512 bytes
21:46:14 | [W] | [modbus_controller:181] | Duplicate modbus command found: type=0x3 address=10103 count=2
21:46:14 | [W] | [modbus_controller:181] | Duplicate modbus command found: type=0x3 address=20127 count=2
21:46:14 | [W] | [modbus_controller:181] | Duplicate modbus command found: type=0x3 address=20132 count=1
21:46:14 | [W] | [modbus_controller:181] | Duplicate modbus command found: type=0x3 address=20143 count=1
21:46:14 | [W] | [modbus_controller:181] | Duplicate modbus command found: type=0x3 address=25201 count=1
21:46:14 | [W] | [modbus_controller:181] | Duplicate modbus command found: type=0x3 address=25205 count=12
21:46:14 | [W] | [modbus_controller:181] | Duplicate modbus command found: type=0x3 address=25233 count=3
21:46:14 | [W] | [modbus_controller:181] | Duplicate modbus command found: type=0x3 address=25237 count=6
21:46:14 | [W] | [modbus_controller:181] | Duplicate modbus command found: type=0x3 address=25247 count=8
21:46:14 | [W] | [modbus_controller:181] | Duplicate modbus command found: type=0x3 address=25273 count=3
21:46:14 | [W] | [modbus_controller:181] | Duplicate modbus command found: type=0x3 address=25277 count=1
21:46:24 | [W] | [modbus_controller:181] | Duplicate modbus command found: type=0x3 address=15201 count=3
21:46:24 | [W] | [modbus_controller:181] | Duplicate modbus command found: type=0x3 address=15205 count=5
21:46:24 | [W] | [modbus_controller:181] | Duplicate modbus command found: type=0x3 address=15212 count=1
21:46:24 | [W] | [modbus_controller:181] | Duplicate modbus command found: type=0x3 address=15217 count=5
21:46:24 | [W] | [modbus_controller:181] | Duplicate modbus command found: type=0x3 address=20109 count=1
21:46:24 | [W] | [modbus_controller:181] | Duplicate modbus command found: type=0x3 address=20111 count=1
21:46:24 | [W] | [modbus_controller:181] | Duplicate modbus command found: type=0x3 address=20118 count=2
21:46:24 | [W] | [modbus_controller:181] | Duplicate modbus command found: type=0x3 address=25233 count=3
21:46:24 | [W] | [modbus_controller:181] | Duplicate modbus command found: type=0x3 address=25237 count=6
21:46:24 | [W] | [modbus_controller:181] | Duplicate modbus command found: type=0x3 address=25247 count=8
21:46:24 | [W] | [modbus_controller:181] | Duplicate modbus command found: type=0x3 address=25273 count=3
21:46:24 | [W] | [modbus_controller:181] | Duplicate modbus command found: type=0x3 address=25277 count=1
21:46:29 | [I] | [safe_mode:041] | Boot seems successful; resetting boot loop counter
21:46:34 | [W] | [modbus_controller:181] | Duplicate modbus command found: type=0x3 address=10103 count=2
21:46:34 | [W] | [modbus_controller:181] | Duplicate modbus command found: type=0x3 address=15205 count=5
21:46:34 | [W] | [modbus_controller:181] | Duplicate modbus command found: type=0x3 address=15212 count=1
21:46:34 | [W] | [modbus_controller:181] | Duplicate modbus command found: type=0x3 address=15217 count=5

Do you know where is the problem ?

And thanks for you work !

Hello! Your config works for me only once :)

Now it logs out this:

21:46:07 | [E] | [json:041] | Could not allocate memory for JSON document! Requested 512 bytes, largest free heap block: 512 bytes 21:46:07 | [E] | [json:041] | Could not allocate memory for JSON document! Requested 512 bytes, largest free heap block: 512 bytes 21:46:14 | [W] | [modbus_controller:181] | Duplicate modbus command found: type=0x3 address=10103 count=2 21:46:14 | [W] | [modbus_controller:181] | Duplicate modbus command found: type=0x3 address=20127 count=2 21:46:14 | [W] | [modbus_controller:181] | Duplicate modbus command found: type=0x3 address=20132 count=1 21:46:14 | [W] | [modbus_controller:181] | Duplicate modbus command found: type=0x3 address=20143 count=1 21:46:14 | [W] | [modbus_controller:181] | Duplicate modbus command found: type=0x3 address=25201 count=1 21:46:14 | [W] | [modbus_controller:181] | Duplicate modbus command found: type=0x3 address=25205 count=12 21:46:14 | [W] | [modbus_controller:181] | Duplicate modbus command found: type=0x3 address=25233 count=3 21:46:14 | [W] | [modbus_controller:181] | Duplicate modbus command found: type=0x3 address=25237 count=6 21:46:14 | [W] | [modbus_controller:181] | Duplicate modbus command found: type=0x3 address=25247 count=8 21:46:14 | [W] | [modbus_controller:181] | Duplicate modbus command found: type=0x3 address=25273 count=3 21:46:14 | [W] | [modbus_controller:181] | Duplicate modbus command found: type=0x3 address=25277 count=1 21:46:24 | [W] | [modbus_controller:181] |

Do you know where is the problem ?

And thanks for you work !

Have additional experiments and results.
I use ESP-01 with latest ESPHome firmware + your YAML config. I chosed original RX/TX for communication with RS485 becouse ESP-01 have only this pins.
So , it works if I doesn't try to view LOGs from device.
If i try to view LOGs - Inverter are stuck and stop give parameters. And only one solution - restart Inverter.
So I suppose that LOG (Debug) use the same UART and thus stuck Inverter with flooded information.
I have changed UART for logging but withh no success ;(

I use such config, but only works if don't use LOG :)

esp8266:
board: esp01_1m

# Enable logging
logger:
level: DEBUG
hardware_uart: UART1
baud_rate: 0

uart:
- id: uart_inverter
baud_rate: 19200
tx_pin: GPIO01
rx_pin: GPIO03
stop_bits: 1
parity: NONE
data_bits: 8
debug:
direction: BOTH
dummy_receiver: false

modbus:
- id: modbus_inverter
uart_id: uart_inverter
send_wait_time: 300ms

modbus_controller:
- id: must_inverter
address: 0x04
modbus_id: modbus_inverter
command_throttle: 300ms
setup_priority: -10
update_interval: ${updates}

There is a mistake in the code probably, adress should be 0x4, not 0x04

modbus_controller:

• id: must_inverter
  address: 0x04
  modbus_id: modbus_inverter
  command_throttle: 200ms
  setup_priority: -10
  update_interval: ${updates}