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Replies: 13 comments 26 replies
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Hello, LXP-US 12K here. Getting this error when trying to get this intergration up and running. This error originated from a custom integration. Logger: custom_components.lxp_modbus.classes.modbus_client Input poll failed; retaining previous input register data. Getting a lot of unknowns and 0s where the system is working as it should on the Luxpower website. |
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Hello @passantino, could you please, enable debug mode and send me the logs. Most likely sanity check is failing and I need to adjust it. I have only 1 inverter type, so building this integration based on it. thank you. |
These logs are massive, I think they repeat quite often. Hope this helps. Let me know if I need to post more. 2025-07-31 17:22:59.922 WARNING (SyncWorker_0) [homeassistant.loader] We found a custom integration lxp_modbus which has not been tested by Home Assistant. This component might cause stability problems, be sure to disable it if you experience issues with Home Assistant
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Thanks! I’ll review it later today or tomorrow. |
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Hello @passantino , I have checked logs and I don't see any issue with them. As for Warning - Input poll failed; retaining previous input register data. - it's s "check" for good package. Sometimes lxp may send corrupted data, most likely it happens because lxp modbus is a single threaded and UI(cloud) polling may interrupt local polling, however it is not affecting integration process, it just removes "bad" responses. Thank you. |
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Hi @ant0nkr, |
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Hi @ChristopheKoeck thanks for clarification. to confirm the root cause. thank you! |
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Hey @ant0nkr, |
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Hi @ChristopheKoeck Then press on 3 dots in the top right corner of the logs window, there will be a button "show raw logs" like on screenshot. As well, you can press Download logs, And download like 5000 lines of logs or 1000 lines, depends on how much integrations and logs you have. 
Thank you. |
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home-assistant_2025-08-01T19-54-03.520Z.log here's a log from my HA instance, gave you 5000lines, hope this gives you enough information. |
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Hello, @ChristopheKoeck and @passantino It seems like you have quite old firmware on your inverters. Could you, please, try to install https://github.com/ant0nkr/luxpower-ha-integration/releases/tag/register-block-size-test beta release? However, please, take into account that you would need to reconfigure your integration and set: Thank you. PS: If it still doesn't work, please, send me the logs again. |
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Hi @ant0nkr We only just got these setup. Is there a way for us to see if we can update the firmware? I've installed the new version and set the block size. Here is another log too Let me know if you need any extra info |
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I see... Do you have WiFi Dongle serial starting with DG, right? Something like DG43...? |
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Hey @ant0nkr @passantino updated his inverter to firmware FAAB-2122, he still has the same problem that the sensors don't get values. He has not installed the new version of your integration yet. Do you want me to start an issue for this on github to not further pollute this thread? |
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Hi @ChristopheKoeck it seems like it’s an issue with DG dongle. Maybe not an issue, but something custom related to this dongle. I’ve already wrote to luxpower dev support and requested details about this dongle. thank you! |
If you still need data, I could help you out with a few inverter's:
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Hi @justinb107 thank you. |
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@ant0nkr just installed integration with LXP-LB-BR and dongle DG43 - integration providing 223 entities. I'm testing only with battery now, next week probably I will finish the installation and put it on grid and will be able to check all values. my installation will be 2 LXP-LB-BR to provide 3-phase 127/220V. no PV now, will be nice if we can select to disable some entity sets like PV in my case. I just upgraded the dongle firmware to 2.09. http://os.solarcloudsystem.com/#/releaseLog?deviceType=DONGLE_E_WIFI_DONGLE |
Hi. In HA you can disable any entity directly. I enabled all by default, to populate as much as possible. However, every user can control what he wants to see. I do not have solar panels, so I have disabled all entities related to PV :) Thank you. |
I'm thinking about the sub-devices, maybe we can think about spliting a single inverter in sub-devices like
A user that does not have PV can disable the entire PV sub-device on a single click, and reenable when PV is installed, same for battery and grid for who are off-grid. This will also make easier to check some configurations without having them mixed by alphabetical names. In this case we can just disable a sub device not individual entities, this makes sens or I'm just dreaming too much ? |
Not sure if this is possible using Home Assistant. It will create different devices and they won't be conneced with each other. It will lead to more calls to Dongle and more communication failures. |
A device can be connected to other like defined here : The device must be defined by the via_device to connect to another device. I think that the same coordinator can update entities like it was done now, read from dongle and get the registers and after that update all entities. I use this in my install on some mqtt devices, make easier to group data because it create this smaller devices with aditional entities. I think that integration will create a sub-device for each group of entities, connect all this devices to main device and attach entities to main device or to sub-devices Aparenttly there are a some integrations that are already using this via_device definition https://github.com/search?q=repo%3Ahome-assistant%2Fcore%20via_device&type=code After I finish all the installation of my inverters I can try to make this if you think is a good direction to go. Main device can be
This image shows how is the device info when a device have sub devices - a Connected devices block appear, and each sub device appear on devices list
from : home-assistant/core#149823 |
A PoC PR : #53 |
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logs from SNA 6000 |
SNA6000 should be working perfectly. I have SNA5000 and there is no big difference between 5000 and 6000. |
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Guybw pointed out in his integration that there's a polling frequency threshold where the dongle loses stability. |
I tried 10 seconds and 60 seconds - both working pretty much good. Basically - dongle is a single threaded and may provide you bad resposnes if LuxCloud is opened or website is opened. I stopped on 30 seconds for 3 inverters and it works pretty good. |
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I think you have just helped me decide which inverter to buy! (SNA-US-12K) I would like to get solar prediction working. Just need to find away to predict power outages a few hours ahead. Thanks |
Difficult to do that in most of cases. In my region, if there is medium-high winds, 99.999% change of power outage, few minutes to 5-6 days (2023 and 2024) .... Other days, no wind, no rain it also can happen, but no way to predict. If possible keep your battery with energy to get sun on next day and you will have energy for basic electronics and fridge. |
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Predbat does a pretty good job of that. |
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I am thinking you might mean "batpred"? Tom |
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Yep, it's the same thing. The UI says predbat, the github project is batpred. Solcast does a really good job of forecasting the amount of energy that can be generated in the future. |
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I can't help here :) I have other troubles with power outages and it's impossible to predict, unfortunately. |
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Hello . I am new to HA. I have a ACS 3.6k and just added your LuxPower integration. Its seem to work fine. I did have problems with the initial configuration as my dongle did not have the second network port setup. I had to set it up to TCP server and port 8000. I think my dongle is a EMW3080B with firmware ATV1.10 and was supplied in March 2019. |
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I have a Luxpower LXP 5k Hybrid... if you need anything hit me up :) |
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Hey, logs from my Luxpower GEN-LB-EU 8k... There's an extra line in here which is generated by my PR's ability to pick up additional / updated config for different model families. I think I need the same information you're asking for here? Mapping from model to model_family is necessary for my change to work beyond my own device... |
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@ant0nkr , just wondering if you're checking in on this repo? I don't suppose it matters to me unless you push a new update to HASS, but next time you do, you'll break my GEN-LB-EU 8K inverter's config! The PR I've submitted might still need a little work because I can't test beyond my own device... |
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Hi @ItsIllak , I'll check it this week. a bit busy with my work. Thanks. |
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Understood, and no rush, so long as a new version doesn't come through HASS and replace it, I've got this up and running locally! Thanks. |
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Hello, I'm looking for more luxpower inverters to debug info.
I have 3 SNA5000 WPV.
But, I would like to get modbus raw data from SNA3000-6000
as well from other series, like LXP to debug and try to understand how some data is encoded there.
If someone could provide - it would be awesome.
Thank you.
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