H3 Register Tables

[rsaemann]

I have a 3-Phase inverter H3-8.0-E and I want to share my register findings for Modbus over Serial with you. The default Modbus device ID (Slave ID) is 247. This can be adjusted in the inverter menu Settings->Communication->RS485->DeviceID.

I put all findings to my fork of this project for 3-phase inverters

LAN	RS485	Name	data_type	scale	unit	device class	Description	Validated with display values
?	31000	PV1-Voltage	int16	0.1	V	Y
?	31001	PV1-Current	int16	0.1	A	Y
?	31002	PV1-Power	int16	W	Y
?	31003	PV2-Voltage	int16	0.1	V	Y
?	31004	PV2-Current	int16	0.1	A	Y
?	31005	PV2-Power	int16	W	Y
?	31006	Grid-Voltage-Phase-R	int16	0.1	V	suggested
?	31007	Grid-Voltage-Phase-S	int16	0.1	V	suggested
?	31008	Grid-Voltage-Phase-T	int16	0.1	V	suggested
?	31009	Grid-Current-Phase-R	int16	0.1	A	Y
?	31010	Grid-Current-Phase-S	int16	0.1	A	Y
?	31011	Grid-Current-Phase-T	int16	0.1	A	Y
?	31012	Grid-Power-Phase-R	int16	W	suggested
?	31013	Grid-Power-Phase-S	int16	W	suggested
?	31014	Grid-Power-Phase-T	int16	W	suggested
?	31015	Grid-Frequency	int16	0.01	Hz	suggested
?	31016	EPS-Voltage-Phase-R	int16	0.1	V	Y
?	31017	EPS-Voltage-Phase-S	int16	0.1	V	Y
?	31018	EPS-Voltage-Phase-T	int16	0.1	V	Y
?	31019	EPS-Current-Phase-R	int16	0.1	A	Y
?	31020	EPS-Current-Phase-S	int16	0.1	A	Y
?	31021	EPS-Current-Phase-T	int16	0.1	A	Y
?	31022	EPS-Power-Phase-R	int16	W	Y
?	31023	EPS-Power-Phase-S	int16	W	Y
?	31024	EPS-Power-Phase-T	int16	W	Y
?	31025	EPS-Frequency	int16	0.01	Hz	Frequency (island mode)	Y
?	31026	Smart-Meter-Power-Phase-R	int16	W	smart-meter	negative=consumption/import	Y
?	31027	Smart-Meter-Power-Phase-S	int16	W	smart-meter	negative=consumption/import	Y
?	31028	Smart-Meter-Power-Phase-T	int16	W	smart-meter	negative=consumption/import	Y
?	31029	Load-Power-Phase-R	int16	W	Main+EPS out
?	31030	Load-Power-Phase-S	int16	W	Main+EPS out
?	31031	Load-Power-Phase-T	int16	W	Main+EPS out
?	31032	Temperature Inverter	int16	0.1	°C	Y
?	31033	Temperature Inner	int16	0.1	°C	Y
?	31034	Battery-Voltage	int16	0.1	V	battery	Y
?	31035	Battery-Current	int16	0.1	A	battery	Y
?	31036	Battery-Power	int16	W	battery	Negative=charging	Y
?	31037	Battery-Temperature	int16	0.1	°C	battery	Y
?	31038	Battery-SoC	int16	%	battery	Y
?	32001	PV-Energy-total	int16	0.1	kWh	inverter	total_increase	Y
?	32002	PV-Energy-daily	int16	0.1	kWh	inverter	total_increase, daily reset	Y
?	32004	Battery-Charge-Energy-total	int16	0.1	kWh	battery	total_increase	Y
?	32005	Battery-Charge-Energy-daily	int16	0.1	kWh	battery	total_increase, daily reset	Y
?	32007	Battery-Discharge-Energy-total	int16	0.1	kWh	battery	total_increase	Y
?	32008	Battery-Discharge-Energy-daily	int16	0.1	kWh	battery	total_increase, daily reset	Y
?	32013	Smart-Meter-Import-total	int16	0.1	kWh	smart-meter	total_increase, daily reset	Y
?	32014	Smart-Meter-Import-daily	int16	0.1	kWh	smart-meter	total_increase	Y
?	32016	Smart-Meter-Export-total	int16	0.1	kWh	smart-meter	total_increase, daily reset	Y
?	32017	Smart-Meter-Export-daily	int16	0.1	kWh	smart-meter	total_increase	Y
?	32022	Load-Energy-total	int16	0.1	kWh	inverter	total_increase	Y
?	32023	Load-Energy-daily	int16	0.1	kWh	inverter	total_increase, daily reset	Y

Address Bankand 30000 (RS485)
30000-30011 - Model name in hex - 'H3-8.0-E'

[adamelo1]

Hello, I assume this wont work for the ETH connection as well, right? As I have H3-10-E connected via eth port to my HA but I struggle with pairing it up

[rsaemann]

Hello, I assume this wont work for the ETH connection as well, right? As I have H3-10-E connected via eth port to my HA but I struggle with pairing it up

I first tried the same: Bought the LAN adapter and tried to reach via Modbus-LAN, but no success (port 502 not visible). In a facebook post they said that a new firmware would enable this feature but I did not get it from the support. The support said that Modbus over LAN is not intended and that they do not want to give information about the registers to end-users. So I had to go via RS485-Modbus using a 3€ adapter device to my Raspberry Pi (EAN 9900002427830 USB-RS485).

As for the H1 inverters the register adress are different between LAN and 485 Modbus transaction. If you manage to get the newest firmware for your H3 then it would be great to see, if the register adresses are the same. I used QModbus to read everything and then compared with the inverter display.

[wranglatang]

Cumulative: 32001 PV Energy total "kWh" x0.1 32002 PV Energy daily "kWh" x0.1

32003 Charge Energy total "kWh" x0.1 32004 Charge Energy daily "kWh" x0.1

32007 Discharge Energy total "kWh" x0.1 32008 Discharge Energy daily "kWh" x0.1 ** No direct grid connection yet, therefore these vlues 32009-32021 are missing here because they are zero. Seems to handle the Grid in and out connection" 32022 EPS Energy total "kWh" x0.1 32023 EPS Energy daily "kWh" x0.1

I am reading data from my hybrid inverter via the lan port and would really like to get the Cumulative data! Happy to do some tests if any has any suggestions as to what the setting for the Slave and Address would be! :)

[adamelo1]

I have updated FW on 1.33 but I am kinda noob to RPI and modbus for now, @wranglatang would you mind sharing your yaml files for the reading the data via LAN port? It would be really appreciated 🥇

[wranglatang]

Im not using an esp / serial converter. My Inverter has a lan port that im able to plug straight into. So i just used the configuration that @StealthChesnut has provided in his code.

[adamelo1]

I also have inverter with LAN port, but I guess you have H1 type? As the configuration from @StealthChesnut does not work for AIO H3 inverters, or am I wrong?

[rsaemann]

I created a fork to add support of H3 inverters

[markopeter1973]

H3 12kw , works with RS485 to Eth Bridge,

[williamjeccles]

@rsaemann if you can create a new config file for h3 and submit it as a pull request, i'll review and merge.