Hi Bert,
The firmware update was done by the SAJ team itself (I had some earlier issues with the batteries going offline because there was not enough production - I live in Belgium ergo not a lot of sun this time of the year).
I will pm you with the contact details of the chinese tech representative that handles my case.
kind regards,
Ben
Ben,
I live also in the not sunny Belgium.
Do you use the ip adres you find in the eSolar O&M app to collect the soc of your battery?
Hi Bert,
No I use the data from the online platform above (the IP’s from the communciation module of the inverter are not reachable) and the AS1 itself doesn’t have an IP.
With the configuration in my post above, you should get an entity: “sensor.esolar_batenergypercent”(amongst many other esolar entities). This entity represents the SoC of your battery.
Btw, i just received the modbus definitions for the AS1, now to test if I can get all data out of the inverter itself on a real-time frequency.
Kr,
Ben
Hi, is this still working well?
They are going to install these inverters by me, and also their 5KWh battery pack (3 of them).
Have you those too? Is somebody be able to integrate them too?
Anybody that got the latest update with what is working with the esolar AIO3?
@BenV do you have the firmware version? I want to check with my version if it’s already installed or not.
BTW I’m also one of those people that live in the not so sunny belgium 
Hi all,
Just to inform everyone, I managed to get the modbus protocols for the AS1 inverter (+ 1 BS module) from SAJ directly. I currently am able to pull everyting (300-400 different data sets) directly over the modbus connection (real time - 1s poll rate).
Only minor disadvantage, you have to disconnect the wifi/ethernet/bluetooth module (AIO3), in order to gain access to the RS232 port (which is an usb bus and via which the modbus communciation goes).
My (draft) setup now:
Connect usb cable to usb port on the inverter:
strip the usb cable to get only the wires connecting to the RS232 parts on the usb hub (took me a while to figure this out):
the rs232 connection scheme on the AS1 USB port:
connect serial RS232 to ethernet converter to pull via tcp modbus:
my home assistant modbus sensors (i only took the data i needed):
modbus:
- name: SAJ
close_comm_on_error: true
delay: 5
type: tcp
timeout: 5
host: 192.168.8.134
port: 23
sensors:
- name: display_board_error_message
slave: 0
address: 16389
count: 2
scale: 1
precision: 0
data_type: uint32
scan_interval: 10
- name: display_controller_error_message
slave: 0
address: 16391
count: 2
scale: 1
precision: 0
data_type: uint32
scan_interval: 10
- name: display_controller_error_message2
slave: 0
address: 16393
count: 2
scale: 1
precision: 0
data_type: uint32
scan_interval: 10
- name: error_message_controller
slave: 0
address: 16395
count: 2
scale: 1
precision: 0
data_type: uint32
scan_interval: 10
- name: error_message_controller2
slave: 0
address: 16397
count: 2
scale: 1
precision: 0
data_type: uint32
scan_interval: 10
- name: Inverter_working_mode
slave: 0
address: 16388
count: 1
scale: 1
precision: 0
data_type: uint16
scan_interval: 1
- name: Grid_phase_voltage
unit_of_measurement: "V"
slave: 0
address: 16433
count: 1
scale: 100
precision: 0
data_type: uint16
device_class: voltage
scan_interval: 1
- name: Grid_Phase_current
unit_of_measurement: "A"
slave: 0
address: 16434
count: 1
precision: 2
scale: 0
data_type: int16
device_class: current
scan_interval: 1
- name: Battery_voltage
unit_of_measurement: "V"
slave: 0
address: 16489
count: 1
precision: 0
scale: 1
data_type: uint16
device_class: voltage
scan_interval: 1
- name: Battery_current
unit_of_measurement: "A"
slave: 0
address: 16490
count: 1
precision: 0
scale: 1
data_type: int16
device_class: current
- name: Battery_power
unit_of_measurement: "W"
slave: 0
address: 16493
count: 1
precision: 0
scale: 1
data_type: int16
device_class: power
scan_interval: 1
- name: Battery_temperature
unit_of_measurement: "C°"
slave: 0
address: 16493
count: 1
precision: 1
scale: 1
data_type: int16
scan_interval: 1
device_class: temperature
- name: Battery_SOC
unit_of_measurement: "%"
slave: 0
address: 16495
count: 1
precision: 0
scale: 0.01
data_type: uint16
device_class: battery
scan_interval: 1
- name: Battery_direction
slave: 0
address: 16534
count: 1
precision: 0
scale: 1
data_type: int16
scan_interval: 1
- name: Gridconsumption
unit_of_measurement: "W"
slave: 0
address: 16538
count: 1
precision: 0
scale: 1
data_type: int16
device_class: power
scan_interval: 1
- name: PVconsumptiontohouse
unit_of_measurement: "W"
slave: 0
address: 16537
count: 1
precision: 0
scale: 1
data_type: int16
device_class: power
scan_interval: 1
- name: GridfeedinfromPV
unit_of_measurement: "W"
slave: 0
address: 16539
count: 1
precision: 0
scale: 1
data_type: int16
device_class: power
scan_interval: 1
- name: Gridfeedinfrombattery
unit_of_measurement: "W"
slave: 0
address: 16540
count: 1
precision: 0
scale: 1
data_type: int16
device_class: power
scan_interval: 1
- name: Batconsumptiontohouse
unit_of_measurement: "W"
slave: 0
address: 16541
count: 1
precision: 0
scale: 1
data_type: int16
device_class: power
scan_interval: 1
- name: BatchargingfromPV
unit_of_measurement: "W"
slave: 0
address: 16542
count: 1
precision: 0
scale: 1
data_type: int16
device_class: power
scan_interval: 1
- name: Batchargingfromgrid
unit_of_measurement: "W"
slave: 0
address: 16543
count: 1
precision: 0
scale: 1
data_type: int16
device_class: power
scan_interval: 1
- name: Systemtotalloadpower
unit_of_measurement: "W"
slave: 0
address: 16544
count: 1
precision: 0
scale: 1
data_type: int16
device_class: power
scan_interval: 1
- name: PVtotalpower
unit_of_measurement: "W"
slave: 0
address: 16549
count: 1
precision: 0
scale: 1
data_type: int16
device_class: power
scan_interval: 1
- name: Batterytotalpower
unit_of_measurement: "W"
slave: 0
address: 16549
count: 1
precision: 0
scale: 1
data_type: int16
device_class: power
scan_interval: 1
- name: Gridtotalpower
unit_of_measurement: "W"
slave: 0
address: 16550
count: 1
precision: 0
scale: 1
data_type: int16
device_class: power
scan_interval: 1
- name: Today_pvenergy
unit_of_measurement: "Kwh"
slave: 0
address: 16575
count: 2
precision: 0
scale: 0.01
data_type: uint32
device_class: energy
scan_interval: 100
- name: Month_pvenergy
unit_of_measurement: "Kwh"
slave: 0
address: 16577
count: 2
precision: 0
scale: 0.01
data_type: uint32
device_class: energy
scan_interval: 100
- name: Year_pvenergy
unit_of_measurement: "Kwh"
slave: 0
address: 16579
count: 2
precision: 0
scale: 0.01
data_type: uint32
device_class: energy
scan_interval: 100
- name: Total_pvenergy
unit_of_measurement: "Kwh"
slave: 0
address: 16581
count: 2
precision: 0
scale: 0.01
data_type: uint32
device_class: energy
scan_interval: 100
- name: Today_batenergy
unit_of_measurement: "Kwh"
slave: 0
address: 16583
count: 2
precision: 0
scale: 0.01
data_type: uint32
device_class: energy
scan_interval: 100
- name: Month_batenergy
unit_of_measurement: "Kwh"
slave: 0
address: 16585
count: 2
precision: 0
scale: 0.01
data_type: uint32
device_class: energy
scan_interval: 100
- name: year_batenergy
unit_of_measurement: "Kwh"
slave: 0
address: 16587
count: 1
precision: 0
scale: 0.01
data_type: uint32
device_class: energy
scan_interval: 100
- name: total_batenergy
unit_of_measurement: "Kwh"
slave: 0
address: 16589
count: 2
precision: 0
scale: 0.01
data_type: uint32
device_class: energy
scan_interval: 100
- name: totay_batdischargeenergy
unit_of_measurement: "Kwh"
slave: 0
address: 16591
count: 2
precision: 0
scale: 0.01
data_type: uint32
device_class: energy
scan_interval: 100
- name: month_batdischargeenergy
unit_of_measurement: "Kwh"
slave: 0
address: 16593
count: 2
precision: 0
scale: 0.01
data_type: uint32
device_class: energy
scan_interval: 100
- name: year_batdischargeenergy
unit_of_measurement: "Kwh"
slave: 0
address: 16595
count: 2
precision: 0
scale: 0.01
data_type: int32
device_class: energy
scan_interval: 100
- name: total_batdischargeenergy
unit_of_measurement: "Kwh"
slave: 0
address: 16597
count: 2
precision: 0
scale: 0.01
data_type: int32
device_class: energy
scan_interval: 100
- name: today_pvconsumed_energy
unit_of_measurement: "Kwh"
slave: 0
address: 16639
count: 2
precision: 0
scale: 0.01
data_type: uint32
device_class: energy
scan_interval: 100
- name: Month_pvconsumed_energy
unit_of_measurement: "Kwh"
slave: 0
address: 16641
count: 2
precision: 0
scale: 0.01
data_type: uint32
device_class: energy
scan_interval: 100
- name: Year_pvconsumed_energy
unit_of_measurement: "Kwh"
slave: 0
address: 16643
count: 2
precision: 0
scale: 0.01
data_type: uint32
device_class: energy
scan_interval: 100
- name: Total_pvconsumed_energy
unit_of_measurement: "Kwh"
slave: 0
address: 16645
count: 2
precision: 0
scale: 0.01
data_type: uint32
device_class: energy
scan_interval: 100
- name: Today_gridconsumed_energy
unit_of_measurement: "Kwh"
slave: 0
address: 16647
count: 2
precision: 0
scale: 0.01
data_type: uint32
device_class: energy
scan_interval: 100
- name: Month_gridconsumed_energy
unit_of_measurement: "Kwh"
slave: 0
address: 16649
count: 2
precision: 0
scale: 0.01
data_type: uint32
device_class: energy
scan_interval: 100
- name: year_gridconsumed_energy
unit_of_measurement: "Kwh"
slave: 0
address: 16651
count: 2
precision: 0
scale: 0.01
data_type: uint32
device_class: energy
scan_interval: 100
- name: total_gridconsumed_energy
unit_of_measurement: "Kwh"
slave: 0
address: 16653
count: 2
precision: 0
scale: 0.01
data_type: int32
device_class: energy
scan_interval: 100
- name: Today_gridfeedinfromPV_energy
unit_of_measurement: "Kwh"
slave: 0
address: 16655
count: 2
precision: 0
scale: 0.01
data_type: uint32
device_class: energy
scan_interval: 100
- name: Month_gridfeedinfromPV_energy
unit_of_measurement: "Kwh"
slave: 0
address: 16657
count: 2
precision: 0
scale: 0.01
data_type: uint32
device_class: energy
scan_interval: 100
- name: year_gridfeedinfromPV_energy
unit_of_measurement: "Kwh"
slave: 0
address: 16659
count: 2
precision: 0
scale: 0.01
data_type: uint32
device_class: energy
scan_interval: 100
- name: total_gridfeedinfromPV_energy
unit_of_measurement: "Kwh"
slave: 0
address: 16661
count: 2
precision: 0
scale: 0.01
data_type: int32
device_class: energy
scan_interval: 100
- name: Today_Totalload_energy
unit_of_measurement: "Kwh"
slave: 0
address: 16607
count: 2
precision: 0
scale: 0.01
data_type: uint32
device_class: energy
scan_interval: 100
- name: Month_Totalload_energy
unit_of_measurement: "Kwh"
slave: 0
address: 16609
count: 2
precision: 0
scale: 0.01
data_type: uint32
device_class: energy
scan_interval: 100
- name: year_Totalload_energy
unit_of_measurement: "Kwh"
slave: 0
address: 16611
count: 2
precision: 0
scale: 0.01
data_type: uint32
device_class: energy
scan_interval: 100
- name: total_Totalload_energy
unit_of_measurement: "Kwh"
slave: 0
address: 16613
count: 2
precision: 0
scale: 0.01
data_type: int32
device_class: energy
scan_interval: 100
Not sure if this work on other Saj inverters, but might be worth a shot?
Probably it’s also possible to command/steer the inverter (several write-addresses were also made available) but i will not be testing this. Please PM if you would like to know more info.
kind regards,
Ben
Thanks for the update.
Nice to see it’s working.
I’m interested in the modbus protocols documentation.
Sadly enough I will not be able to disconnect the AIO3 module.
The app still has to work for my GF.
I’m also going to have contact with somebody of SAJ through my solar panel installer.
Going to ask what the options are.
Sorry if what I am going to say is silly, I am very new to these things… if it is a USB, couldn’t it just be split into 2 and connect the AIO3 to one of them and use the other to tinker with the RS232?
Hi George,
Not sure that will work. Typically serial communications (especially RS232) are one street-communication only, meaning that only one ‘master’ will be able to request the data. Besides using a modbus gateway, i’m not sure multiple request can be done on the serial bus of the Saj.
Not really sure as to why you would need the AOI3 module though, with this modbus pulling, you will be able to pull all information off the inverter on a real time basis (1 sec). Everything that i can think off can be pulled without having to do a lot of calculations. With this info that you pull, you can do whatever you want to visualize this in home assistant.
Updating the sofware will not work, but for that, you can decouple the modbus USB and recouple the AOI3 module if needed.
eg:
good luck!
kind regards,
Ben
Hi!
I went for the dns server + mqtt proxy.
mqtt payload is binary data, sent every 10 seconds as “realtime_data”.
Does someone know about the format?
[djansen1987] mentioned some article regarding this but cannot find anything related
Hi guys. I have previously succesfully imported the data from my SAJ inverter into HA. However, after upgrading HA the connection has been lost. I can access the inverter via its IP address from my browser without any trouble.
Anybody has the same issue as me or might be able to help me trouble shoot? I see a warning/error on SAJ in the logs:
WARNING (MainThread) [homeassistant.components.sensor] Setup of sensor platform command_line is taking over 10 seconds.
ERROR (MainThread) [homeassistant.components.sensor] Setup of platform saj is taking longer than 60 seconds. Startup will proceed without waiting any longer.
Hi,
I’m experiencing the same issue.
Miss configuration on my side.
Never mind it’s working on my side.
The issue is fixed with the recent .7 core update of HA.
Hi All,
I would like to ask some help. I am new with home assistant, I would like to ask some help.
I use the built in SAJ integration, this my configuration.
sensor:
#SAJ
Everything looks good but my homeassistant log is full with this errors after I add the SAJ integration.
2022-07-16 09:15:47 ERROR (MainThread) [homeassistant] Error doing job: Task exception was never retrieved
Traceback (most recent call last):
File “/usr/src/homeassistant/homeassistant/components/saj/sensor.py”, line 159, in interval_listener
if await action():
File “/usr/src/homeassistant/homeassistant/components/saj/sensor.py”, line 114, in async_saj
values = await saj.read(sensor_def)
File “/usr/local/lib/python3.10/site-packages/pysaj/init.py”, line 141, in read
async with session.get(current_url) as response:
File “/usr/local/lib/python3.10/site-packages/aiohttp/client.py”, line 1138, in aenter
self._resp = await self._coro
File “/usr/local/lib/python3.10/site-packages/aiohttp/client.py”, line 559, in _request
await resp.start(conn)
File “/usr/local/lib/python3.10/site-packages/aiohttp/client_reqrep.py”, line 893, in start
with self._timer:
File “/usr/local/lib/python3.10/site-packages/aiohttp/helpers.py”, line 721, in exit
raise asyncio.TimeoutError from None
asyncio.exceptions.TimeoutError
I installed my HA on a Synology Docker.
What can I do?
Hi Ben!
Please, can you share the modbus protocol provided by SAJ?
I own a SAJ H1 5K
thank’s!!
Hi Jorge, I own the same inverter.
Those are some of the modbus adresses:
| HEX | DEC | Size (Word) | Register Name | Data Type | Rate | Unit | Property | Register Description |
|---|---|---|---|---|---|---|---|---|
| 4032H | 16434 | 1 | ROutCurr | Uint16 | -2 | A | R | R Phase Output Current |
| 4033H | 16435 | 1 | RGridFreq | Uint16 | -2 | Hz | R | R Phase Grid Frequency |
| 4034H | 16436 | 1 | RGridDCI | Int16 | 0 | mA | R | R Phase Grid DC Component |
| 4035H | 16437 | 1 | ROutPowerWatt | Uint16 | 0 | W | R | R Phase Output Active Power |
| 4036H | 16438 | 1 | RGridPowerVA | Uint16 | 0 | W | R | R Phase Grid Apparent Power |
| 4037H | 16439 | 1 | RGridPowerPF | Int16 | -3 | R | R Phase Grid Power Factor | |
| 4046H | 16454 | 1 | RInvVolt | Uint16 | -1 | V | R | R Phase Inverting Voltage |
| 4047H | 16455 | 1 | RInvCurr | Int16 | -2 | A | R | R Phase Inverting Current |
| 4048H | 16456 | 1 | RInvFreq | Uint16 | -2 | Hz | R | R Phase Inverting Frequency |
| 4049H | 16457 | 1 | RInvPowerWatt | Int16 | 0 | W | R | R Phase Inverting Active Power |
| 404AH | 16458 | 1 | RInvPowerVA | Uint16 | 0 | VA | R | R Phase Inverting Apparent Power |
| 4055H | 16469 | 1 | ROutVolt | Uint16 | -1 | V | R | R Phase Output Voltage |
| 4056H | 16470 | 1 | ROutCurr | Uint16 | -2 | A | R | R Phase Output Current |
| 4057H | 16471 | 1 | ROutFreq | Uint16 | -2 | Hz | R | R Phase Output Frequency |
| 4058H | 16472 | 1 | ROutDVI | Int16 | 0 | mV | R | R Phase Output Voltage DC Component |
| 4059H | 16473 | 1 | ROutPowerWatt | Uint16 | 0 | W | R | R Phase Output Active Power |
| 405AH | 16474 | 1 | ROutPowerVA | Uint16 | 0 | VA | R | R Phase Output Apparent Power |
Hello Hugo!
Thank you very much for your answer! I have been looking for this information for a long time.
If you can send me the complete file by PM, I would be very grateful!!
Thanks i also have a (two, yeah I got a cool 20KW panels) trifase inverter AIO3 with new dongle, will try your setup when the installation is done.
The models are
Anyone else got the same invertee/batteries?
It’s done!