Just posted a tutorial on this.
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Hi,
I get it managed that I could connect via Modbus to my Solarmax 13SMT inverter. My biggest issue for now is to find the right Modbus addresses for the inverter. Every help is welcome. I’m not sure if all values are right. THX in advance.
modbus:
- name: solarmax
type: tcp
host: 192.168.0.78
port: 502
sensors:
- name: solarmax_current_power
unique_id: 6a0a5b90-4ae8-4a33-8de9-0b5c59a6b8d1
slave: 1
address: 4151
input_type: holding
unit_of_measurement: kW
data_type: int32
scale: 0.0001
- name: solarmax_total_power
unique_id: d2a0e2cc-612f-47e9-9f24-f3fce5f9ac6a
slave: 1
address: 4129
input_type: holding
unit_of_measurement: MWh
data_type: int32
scale: 0.001
- name: solarmax_max_power_today
slave: 1
unique_id: d2a0e2cc-612f-47e9-9f24-f3fce5f9ac6a
address: 4155
input_type: holding
unit_of_measurement: kW
data_type: int32
scale: 0.0001
- name: solarmax_internal_converter_temperature
unique_id: 70b4357b-d7f7-4211-b141-a5a917cf0cc3
slave: 1
address: 4124
input_type: holding
unit_of_measurement: °C
data_type: int16
state_class: measurement
- name: solarmax_total_power_today
unique_id: ef4c1f35-6825-4298-ba55-65589efce315
slave: 1
address: 4136
input_type: holding
unit_of_measurement: kWh
data_type: int16
scale: 0.001
- name: solarmax_spannung_1
unique_id: 95ed4472-e34a-43fc-97db-e617d49a8e79
slave: 1
address: 4112
input_type: holding
unit_of_measurement: V
data_type: int16
scale: 0.1
- name: solarmax_strom_1
unique_id: 079ba81f-99bb-4bd8-a992-9ac2c89674d2
slave: 1
address: 4113
input_type: holding
unit_of_measurement: A
data_type: int16
scale: 0.1
- name: solarmax_leistung_1
unique_id: ba84af5e-1f35-4949-a1a8-98bcb53b0170
slave: 1
address: 4115
input_type: holding
unit_of_measurement: kW
data_type: int16
scale: 0.0001
- name: solarmax_spannung_2
unique_id: e27d4db8-1c82-4e65-8243-98e25d114a5a
slave: 1
address: 4116
input_type: holding
unit_of_measurement: V
data_type: int16
scale: 0.1
- name: solarmax_strom_2
unique_id: 6dfe8cae-9860-4a7e-9f40-e8edd25b2d9c
slave: 1
address: 4117
input_type: holding
unit_of_measurement: A
data_type: int16
scale: 0.1
- name: solarmax_leistung_2
unique_id: f3226562-5b7e-4b3c-9366-eeb4f091eabb
slave: 1
address: 4119
input_type: holding
unit_of_measurement: kW
data_type: int16
scale: 0.0001
- name: solarmax_spannung_3
unique_id: ca603951-18d0-475f-9a66-42da6da8eacb
slave: 1
address: 4107
input_type: holding
unit_of_measurement: V
data_type: int16
scale: 0.1
- name: solarmax_strom_3
unique_id: cb0aeea2-a69a-4d79-85ae-79d0e1b506d5
slave: 1
address: 4108
input_type: holding
unit_of_measurement: A
data_type: int16
scale: 0.1
- name: solarmax_leistung_3
unique_id: 67e7e1a7-feb6-45e8-8e26-4db7b086875d
slave: 1
address: 4110
input_type: holding
unit_of_measurement: kW
data_type: int16
scale: 0.0001
I added and updated some modbus addresses.
With the modbus data type fix from 2024.02.
So I had to adjust the following values to get it work again:
sensors:
- name: solarmax_current_power
unique_id: 6a0a5b90-4ae8-4a33-8de9-0b5c59a6b8d1
slave: 1
address: 4151
input_type: holding
unit_of_measurement: W
data_type: uint32
scale: 0.1
device_class: power
state_class: measurement
Hi @Dbuckley1712,
thank you so much for this. Thanks to your instructions, I was able to set this up in a couple of hours. Really super useful!
