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Must inverter ESPHome configuration for ESP32. More info and the latest version of the config are now in the repo: https://github.com/vladyspavlov/esphome-must-inverter
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| # More info and the latest version of the config are now in the repo: https://github.com/vladyspavlov/esphome-must-inverter | |
| 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 |
Hello !
use another module for communicate rs486
https://www.nikom.biz/LA66300273995.jpg
this module automatic set receive/transmit direction. all people used
this module.
Number too - use chat GPT / grok / cloud ai - for correct you code
Number three - PV18 used current settings for communicate:
uart: (8N1 19200)
id: mod_bus
tx_pin: GPIO12
rx_pin: GPIO13
* baud_rate: 19200*
* stop_bits: 1*
* parity: NONE*
* data_bits: 8*
modbus_controller:
- id: must
* address: 0x4*
modbus_id: mod_bus_must
setup_priority: -10
update_interval: 2s SEE speed, bit, parity, address .... check it ! I have
python code for comunicat PV18 - but it on my notebook ... i post it for
you - later .... best regards Mykola
чт, 13 лист. 2025 р. о 08:56 Jugheadbomb ***@***.***> пише:
…
***@***.**** commented on this gist.
------------------------------
Hello! Sorry for offtop, I'm not using ESPHome, just trying to get values
from PV18 inverter using arduino UNO (with ESP8266 onboard), MAX RS485 to
TTL adapter, but i'm unable to get it to work. I'm using ModbusMaster
library, anytime I try to read registers, it throws Modbus error: 226
(which means Timeout). Help please. Much appreciated.
#include <SoftwareSerial.h>
#include <ModbusMaster.h>
#define RS485_DIR 4 // DE, RE
SoftwareSerial rs485(2, 3); // RX, TX (RO, DI)
ModbusMaster node;
void preTransmission()
{
digitalWrite(RS485_DIR, HIGH); // Sending mode
}
void postTransmission()
{
digitalWrite(RS485_DIR, LOW); // Receiving mode
}
void setup()
{
Serial.begin(9600);
rs485.begin(9600); // Modbus baud
pinMode(RS485_DIR, OUTPUT);
digitalWrite(RS485_DIR, LOW);
node.begin(1, rs485); // slave ID = 1?
node.preTransmission(preTransmission);
node.postTransmission(postTransmission);
Serial.println("Starting Modbus polling...");
delay(1000);
}
void loop()
{
// 15206: PV Voltage, 15207: PV Current, 15208: Battery Voltage
uint8_t result = node.readHoldingRegisters(15206, 3); // 1 arg - register, 2 arg - count
if (result == node.ku8MBSuccess)
{
float pvVoltage = node.getResponseBuffer(0) * 0.1;
float pvCurrent = node.getResponseBuffer(1) * 0.1;
float battVoltage = node.getResponseBuffer(2) * 0.1;
Serial.print("PV Voltage: ");
Serial.print(pvVoltage);
Serial.print(" V | PV Current: ");
Serial.print(pvCurrent);
Serial.print(" A | Battery Voltage: ");
Serial.print(battVoltage);
Serial.println(" V");
}
else
{
Serial.print("Modbus error: ");
Serial.println(result);
}
delay(2000);
}
Connection scheme
image.png (view on web)
<https://gist.github.com/user-attachments/assets/601eb9e8-7947-4d9f-92f6-d2c8a8ccda6e>
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Тимчасовий варіант)))
Зробив таку смеху точно, але чомусь сенсори не читає з інвертора, немає данних ніяких. В Чому проблема може бути ?
"solar ch current set"
address: 20132
"Grid ch current set
address: 20125
вт, 9 груд. 2025 р. о 20:12 Igor Kochubynskyi ***@***.***>
пише:
… ***@***.**** commented on this gist.
------------------------------
Дякую за купу корисної інформації. Зібрав собі донгл - все працює, все
моніториться. Але є певен параметр який не змінюється:
Міняю в інтеріейсі - все ок, перевіряю через меню інвертора - там старе
значення. У мене PV18-3224VPM II.
number:
- platform: modbus_controller
modbus_controller_id: must_inverter
address: 10108
name: "Max Charger Current"
unit_of_measurement: "A"
icon: mdi:current-dc
value_type: U_WORD
min_value: 1
max_value: 60
step: 1
multiply: 10
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Hello! Sorry for offtop, I'm not using ESPHome, just trying to get values from PV18 inverter using arduino UNO (with ESP8266 onboard), MAX RS485 to TTL adapter, but i'm unable to get it to work. I'm using ModbusMaster library, anytime I try to read registers, it throws
Modbus error: 226(which means Timeout). Help please. Much appreciated.Connection scheme
