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[Feature Request]: Huawei Energy Management Assistant (EMMA-A01 / A02) Support #498
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FYI Huawei have released an installation videa for the EMMA devices, and a new User Guide that includes updating network information. Note: The EMMA is a device that manages energy in a home with a PV system. It can implement unified scheduling and management of home energy. The EMMA has two models: EMMA-A01: Only PV and ESS features are supported. Plant-level power control functions, such as maximum self-consumption and grid-tied point control, are supported for unified scheduling of home energy and plant-level energy optimization, further improving the PV energy utilization EMMA-A02: Features of PV, ESSs, smart chargers, and smart loads are supported. In addition to unified scheduling of home energy, the EMMA-A02 can connect to smart loads such as chargers, SG Ready heat pumps, and smart switches. Users can set the reservation time to charge vehicles and heat water in advance at the specified time. In addition, users can set the priority to use PV energy for devices as required to make the best use of PV energy. EMMA Installation Video: https://support.huawei.com/enterprise/en/doc/EDOC1100338746?idAbsPath=7639526%7C258788303%7C258788491%7C258789989%7C23205712%7C256539983 [EMMA-(A01, A02) User Manual - 2023-10-31 - v02.pdf](https://github.com/wlcrs/huawei_solar/files/13445816/EMMA-.A01.A02.User.Manual.-.2023-10-31.-.v02.pdf) from https://support.huawei.com/enterprise/en/doc/EDOC1100325377/9a24721e/networking Comments: Updated network diagrams appear to confirm that the EMMA will replace the sDongle as the (default?) method to provide connectivity for inverters/site to FusionSolar, whilst the DDSU/DTSU-666 meters will also be superceded with the EMMA providing this functionality also (option to use inbuilt CT's <63A or connect external CT's for >63A systems). There is only reference to modbus-tcp in relation to certificates and authenticating with 'peer NMS' and FusionSolar. Looking at the RS485 details, it has an RS485 A and B, with A going to the inverter/cascade and B for '3rd party devices'. |
Hi, |
@torwag the EMMA appliance is a replacement option for the DDSU/DTSU-666H, USB sDongle etc so from an inverters persepctive is doesn't matter is its 1 or 3 inverters in a cascade. Instead of wiring in the DDSU/DTSU-666H in future you'll connect the EMMA via that RS485 port. Also read the prior posts carefully and you'll notice at the bottom of 'Figure 2-2' it mentions: "Inverters connect to the EMMA over RS485. A maximum of three inverters can be connected in parallel" Worth noting also is that since that post, Huawei / Shelly have also announced that EMMA can integrate with some of their devices, see: |
Hello When do you want to start the integration? |
Do you have an EMMA installed already and are offering to install the current WLCRS integration version and see if it 'mostly' works already (assuming it uses the same modbus registers as the DDSU/DTSU-666H for the power meter data)? Post that your able to provide WLCRS with remote access to your setup to allow him to develop and test, for any new modbus registers that are required? |
Hello Konfiguration --> SUN2000-10KTL-M1 (Modbus 1) --> SUN2000-5KTL-M1 (Modbus 2) Attention |
@MarkusKAuatria "Emma is connected via pin 2/3 and not via PIN 5/7 like the DTSU" PIN 5 ias 'shielding ground' (shared with LUNA also) with PIN7 (485A2) and PIN9 (RS485B2) being used to connect to the DTSU-666H. Are you sure that EMMA is correctly wired though with it using PIN 2 (RS485B1-1 'Differential -') and PIN 3 (RS485A1-2 'Differential +'), apart from these being from different pairs, the Huawei documentation shows it as PIN 1 (+) and PIN 3 (-) , that is also the A1/B1 pair previously used to cascade (i.e. out from 1&3 from higher up modbus device, that then goes into 2&4 from lower device in the cascade)? See diagram posted earlier/above, from the EMMA manual. Note: This would mean that EMMA now would become the Modbus Master, with the 'primary' inverter now becoming a modbus slave to it. Hoping that Huawei used the same modbus registers that the DDSU/DTSU-666H meter uses, meaning the Smart Meter part of EMMA will work with WLCRS. I haven't see any updated information as to Modbus Registers for EMMA, and IF it adds any new ones to 'share' whatever additional data has / provides access to. |
@MarkusKAuatria Can you also download the latest (and current only) file from https://support.huawei.com/enterprise/en/fusionsolar/smarthems-pid-256539983/software/ and upload it here? For SUN2000 software downloads, the ZIP-files with the firmware updates also include PDF's with documentation on how the available modbus registers look like. As I do not own such a device, I do not have access to those downloads. |
@wlcrs @Roving-Ronin |
Just out of curiosity, what would be the benefit of the EMMA for home assistant integration? As I understood, the "smart" features would be why we connect it to home assistant in the first place. |
@torwag EMMA combines the modbus access and network connectivity (WiFi and Ethernet) previously provided by the sDongle, the DDSU/DTSU-666H smart meter functions into one unit, whilst then also adding support and connectivity for the Huawei EV charger(s), Load Shedding/Control (via select Shelly devices) and abilty to access cloud data (e.g. forecasts) and your usage trends to provide some 'intelligence' to a Huawei installation. Yes WLCRS + HA users will still be taking this a step further and pulling in their own data and making automations etc, but the main thing is EMMA appears to be 'the' preferred solution for adding network connectivity, and smart/consumption meter to Huawei installs going forward (vs multiple seperate items). Huawei is also pushing this by the fact that the new Backup Box (aka the SmartGuard) includes an EMMA built into it. From a business perspective for Huawei it also means they are moving from having to buy another vendors consumption meter and work with it, to now producing and selling their own meter (and extra functionality) that they control the IP for, meaning better profits potentially but also potentially reducing their support costs (from issues arising from DDSU/DTSU-666H). BTW trying to remember, was your setup the one with 3 inverters, with each essentially going to seperate users/apartments? Otherwise, why don't you just cascase them all together (bit of Cat5e cable), the only need 1 sDongle connection for the lot and 1 DDSU/DTSU-666H meter? @MarkusKAuatria |
I've received access details from Markus. The EMMA device does not have any open TCP ports at the moment, so he will need to check if he can access a setting to fix this (which seems to be available according to a screenshot from the manual ). Alternatively, the EMMA-device also exposes a serial Modbus RTU interface on 2 pins (cfr. bottom screenshot of #498 (comment)). So that is another scenario that we can explore if necessary. |
Hello, now that there should be more EMMAs in the field, have you received any new information about possible ways to access EMMA? :) I hope Huawei won't keep it closed to third-party apps for querying their devices. |
The EMMA device I had access to via Markus does not answer to any queries: not via TCP, not via RTU (serial). We haven't been able to obtain instructions on how we can locally connect to a solar installation with EMMA from Huawei. I would urge everybody considering to order a Huawei Solar installation with EMMA device to first contact Huawei to verify if a local Modbus-connection is supported. If possible, please obtain a manual on how to achieve this and share it with me here. |
Oh, that's too bad, that is certainly not an optimal situation. I have also tried to get information on the topic as a potential future Huawei customer. Huawei's technical support didn't provide any information because I am not a customer (couldn't provide a device serial no) and referred me to a distributor. The distributor also didn't want to tell me anything because I am an end user. I guess a Huawei device owner would have to open a service request. |
Hallo
|
Hi,
And did you get a chance to try to connect through the inverter Wifi? It should be Independant from the EMMA no?
BR
Thomas
Le 5 juin 2024 à 17:07 +0200, Markus ***@***.***>, a écrit :
… Hallo
These were the last two feedbacks from HUAWEI Support
• > Unfortunately, we do not have any guideline about how access works exactly and how the individual services can be accessed (Modbus TCP, MQTT, web,...) especially for EMMA-A02.
• > Please be advised that we created related SR NO. xxxxxxx and we will come back with a resolution as soon as possible.
Kindly ask you to choose the option “Reply All” when communicating with our engineers in order to track your response easily.
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@tmenguy the issue is adding support for EMMA, especially given in future installations it replaces the sDongle, DDSU/DTSU-666H consumption meter and becomes the primary means for communication for the plant (that also has 2 x M1 3p inverters). |
Yes, and I was looking at adding an EMMA to my existing installation (with the new backup box ... but it is not 3phases for now it seems). But correct me if I'm wrong: it will replace the meter and Sdongle all at once, but the inverter wifi will stay no? so perhaps there is a way to still connect through it? |
@tmenguy The EMMA-A02 is available to support 3p, with AC voltage options of: The SmartGuard documentation has started mentioning a 'SmartGuard-63A-T0' with T0 = Three-phase Whole Home Backup system. See: Networking Quick Guide: https://support.huawei.com/enterprise/en/doc/EDOC1100366779?idPath=258788303|258788483|258789967|21102414|21571652 Be aware though, that whilst it mentions 'whole home backup' have a look at the wiring diagram: You'll note that it refers to 'Backup Load' and 'Non Backup Load', then have a look at the new 5k-12k MAP0 inverter series manual, with some handy networking diagrams on page 17-18: From this it appears the SmartGuard-63A-T0 will allow connecting the grid feed into it and then attaching the (bulk of the) house to its protected output up to 63A, so its now inline between your previous grid feed and the switchboard. You could then attach your 3p HVAC/Ducted Aircon unit to the unprotected circuit. Idea appears to be that you are protected this way and then can add an Automatic Transfer Switch (ATS) in to allow cutting over from a grid/mains feed to having a generator kick in, so your LUNA ESS + SmartGuard 'protects' the house for the 20ms until the generator kicks in automatically. Note that is with the MAP0 inverters and typically it costs a few extra $ for a 3p with a automatic start. If you have the $ for a 3p generator and already have a M1 inverter(s), you could just have an ATS / Manual Transfer Switch (that don't cost much) installed and rely upon the LUNA covering you for a few minutes and walking outside and manually starting the generator. |
Hello, the new backup box Smartguard can also only supply 1 phase. The 3-phase designation refers to the inverter. There will be a real 3-phase backup box from Huawei in the future, but it will not be able to work together with the inverters currently on the market. There will be a new inverter for this backup box. The reason is that the current inverters are not unbalanced load capable. |
@Roving-Ronin thanks a lot for the, as always very detailed answer, I've seen only the S0 and not the T0 smartGuard, but loosing HA connection may be a no brainer to me if we don't find a way to connect to EMMA. |
@ismiregal17 Good point, overlooked that.... |
Hi all, I'm still pulling data though the Inverter AP |
I've implemented initial support for EMMA devices, but as I do not own this device, I was not able to properly test this. I don't want to do a release before I have confirmation that it works. To test: 0/ make sure that the firmware version of your EMMA is V100R024C00SPC100 or higher. 2/ download the repository ZIP file: https://github.com/wlcrs/huawei_solar/archive/refs/heads/main.zip If the documentation is correct, the EMMA will always be device 0. You need to lookup and add the slave ids of your inverters yourself, as they were chosen by your installer. If I didn't make any error (which is highly unlikely), the integration should properly initialize. If it fails, then please post the relevant parts of the full logs with the errors (buttons on the bottom of the Logs page). If you don't see anything in the logs, then add the following to your
|
@wlcrs I have tried it but unfortunately it does not work. This error was caused by a custom integration Logger: custom_components.huawei-solar.config_flow Unexpected exception while connecting via ModbusTCP |
Going to verify the tls. L.E. Checked and SSL is off. Firmware is ok I've deleted the invertor set to 192.168.200.1 I can't even add that one same error with port 6607. So its not related to emma. 2024-08-03 21:23:31.734 DEBUG (MainThread) [pymodbus.logging] handle: [b'\xff\xff', b'\xfb\xc0'] |
Any other ideea on how to fix the batteries settings? |
@tudor0410 like I've mentioned before you need a secondary connection for now. Not to Emma up. You need to connect to the inverters IP. I'm using a TPLink MR-3020 that has the option for AP-Client. I didn't find any other option fixing this though Emma. Your problem with the grid can be solved with Q-U + HVLT and battery set to TOU and excess fed to grid. When HVLT will be triggered the export excess will be redirected to the battery. That was my option for Romanian Grid 🤦♂️ hopefully @wlcrs or someone more experienced will find the fix. |
@dragosmd Sounds good, where did you get it shown? They're not available in the portal or on mobile. Or was it possibly recalled? @wlcrs Is there a chance that the currently great running version 1.5.0a1 will become public? 😉 |
@tmycgn Emma is public, as for SG the relevant version is specified in the Emma release notes but not yet published in the huawei website. https://support.huawei.com/enterprise/en/fusionsolar/smarthems-pid-256539983/software/263209812 |
Thank you very much! Let's wait for a fix from @wlcrs to get rid of secondary connection. |
@tmenguy would you be able to assist, trying to confirm the output for the modbus register that gives the model of battery connected? To date I've only been able to gain access to a LUNA S0 15kWh system to test this (it reports "LUNA 2000"), but needing to confirm what a LUNA S0 system reports (would be nice if it reported 'LUNA 2000 S0' or something to diffentiate from S0). If possible, would you be able to paste these two pieces of code into the Develop Tools --> Template page and let me know what it reports? Edit: Just noticed you have an MB0 also, if you could confirm the output for it also ?
Version 2 - Model Detection
Using custom/derived sensors and some new sensors coming with the next release from WLCRS, allows seeing: ..now if there was just a way to query firmware versions. Many Thanks! |
Dear all, I noticed this subject while looking for more information. Reading through this topic, I still don't know if the EMMA smart meter can be integrated in HA. I already use HA for 8 years but still have a lot to learn about the green energy integrations. Many thanks for the feedback and advice. I hope to be able to support you as well in half a year. Kind regards, Robin |
Hi,
By the time you will have this mounted and ready the solution will be ready.
It's ready most of it. I'm already gathering data from Emma.
Regards
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…On Sat, Oct 12, 2024 at 17:25 XalaTheShepard ***@***.***> wrote:
Dear all,
I noticed this subject while looking for more information.
In spring 2025 I will install solar panels, home batteries and an EV
charger all of the Huawei brand.
The installer prefers to install it with the EMMA smart meter.
Reading through this topic, I still don't know if the EMMA smart meter can
be integrated in HA.
What are the things I should be aware of to have the solar panel, home
battery and EV charger integrated in HA?
I already use HA for 8 years but still have a lot to learn about the green
energy integrations.
Many thanks for the feedback and advice. I hope to be able to support you
as well in half a year.
Kind regards,
Robin
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Dear dragosmd, Many thanks for your reaction. Kind regards, Robin |
Basically yes, when @wlcrs decides that this is good enough most probably
he will push the code in the next release.
For now battery controls are not that good throughout EMMA maybe cause
huawei encourages Emma pro and AI is modifying things as it wants.
To use it at its fullest I have 2 connections ongoing.
One that pulls data from/about Emma
Second that pula data from inverter that includes the batteries as well.
Info being refreshed at 10 seconds for all devices.
@Roving-Ronin mine with older model it's identified as Luna-2000. If I
remember correctly I helped someone with mb0 and as well it shows as
Luna-2000
Regards,
Dragos
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…On Sat, Oct 12, 2024 at 18:07 XalaTheShepard ***@***.***> wrote:
Dear dragosmd,
Many thanks for your reaction.
Is this the main topic to keep up-to-date about the EMMA developments or
are there other ongoing to keep an eye on?
Kind regards,
Robin
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Dear Dragosmd, Do you require any additional installations to read the information from the inverter? And has it to be hard wired? Many thanks for the feedback. Kind regards, Robin |
At this moment for this issue I'm running the following setup.
I've got a Unifi AP AC In Wall in the inverter box.
1 eth is connected to EMMA so I have a lan connection to it.
2'nd eth is connected to a TP-Link mr3020 what has the option for WISP so
I'm connecting to the inverters WiFi and send data to HA via LAN.
Tried modbus to eth... Didn't work so good as I would expect... and also
made my huawei equivalent to get alerts and errors for communication.
So far this is my stable config for HA, before Emma only used the 2nd
connection.
Hopefully one day Emma will have all the inverter settings so I can run a
simplified config.
![image](https://github.com/user-attachments/assets/baf4d65c-480b-434b-8a54-f737066832c3)
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…On Sat, Oct 12, 2024 at 18:58 XalaTheShepard ***@***.***> wrote:
Dear Dragosmd,
Do you require any additional installations to read the information from
the inverter? And has it to be hard wired?
Many thanks for the feedback.
Kind regards,
Robin
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Dear Dragosmd, Many thanks for all the information. Do you happen to know if EV chargers are also included in the integration? Kind regards, Robin |
Neah, I'm at hibrid level and it can only support 16A max charging so
didn't find a real good reason to invest in that as long as I have a normal
socket that can provide this.
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…On Sat, Oct 12, 2024 at 20:27 XalaTheShepard ***@***.***> wrote:
Dear Dragosmd,
Many thanks for all the information.
Do you happen to know if EV chargers are also included in the integration?
Kind regards,
Robin
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I am also still in hybrid level, but am doing the necessary investments already since in Belgium the sale of gas and fuel powered cars will be prohibited in 2030 and at that moment both me and my wife also have to we will have to buy a new car since our is already 4 years old at this moment. |
Ahaha I don't think that will be prohibited. My brother is also there and I
know the rules. But there are to many combustion engine cars in Be.
But time will tell
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I am also still in hybrid level, but am doing the necessary investments
already since in Belgium the sale of gas and fuel powered cars will be
prohibited in 2030 and at that moment both me and my wife also have to we
will have to buy a new car since our is already 4 years old at this moment.
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If the EV charger is paid by the employer, I don't complain 😉 |
v1.5.0 alpha 1 is available now with preliminary EMMA support. Please open new issues when you encounter something that goes wrong. Please properly complete the issue template, as that contains important information for me to help debug. |
Is there now any possibility to connect to EMMA via WLAN? I do not have ethernet installed in my power box where EMMA is placed. |
If you read the hole thread ... yes.
With latest update 101 wlan now works on modbus.
Cheers
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…On Thu, Oct 17, 2024 at 14:50 PiGuy ***@***.***> wrote:
- Connection of the EMMA via *LAN*, WLAN does not work (Fusion Solar
App with installer > Connect EMMA > Communication configuration > Router
configuration>Select LAN)
- For the physical LAN connection, use the WAN port on the EMMA below,
NOT the LAN
Is there now any possibility to connect to EMMA via WLAN? I do not have
ethernet installed in my power box where EMMA is placed.
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I read it but somehow did not see or realize your comment (for sure as it was exactly what I was looking for 😆). Thank you so much! I will do the update and test again. |
Short feedback at this point after a few weeks of operation, from my point of view it works great. Thank you @wlcrs @Roving-Ronin ! |
@Roving-Ronin Really sorry ! missed this one Here are the results:
The regex is not working but SUN2000-15K-MB001076371-006 I have no second inverter so the other sensor is not working
for the battery: LUNA 2000 Hope this helps |
Thanks for that. Is 01076371-006 your inverters serial number, so as an EMMA user it's reporting your model name + serial as one string ? If it's OK, I'll send you some updated code (later), to test and get this working for 'non EMMA and EMMA users'? |
Hi, I’m not a EMMA user … and this number (SUN2000-15K-MB001076371-006 this is my Device name it seems) is not my serial number … BR |
According to Huawei’s naming convention it’s a SUN2000-15K-MB0 inverter – the recent inverter series in Europe, I assume the following numbers being some kind of serial or similar.
Cheers,
Andi
Von: tmenguy ***@***.***>
Gesendet: Samstag, 26. Oktober 2024 17:49
An: wlcrs/huawei_solar ***@***.***>
Cc: andheller123 ***@***.***>; Mention ***@***.***>
Betreff: Re: [wlcrs/huawei_solar] [Feature Request]: Huawei Energy Management Assistant (EMMA-A01 / A02) Support (Issue #498)
Hi,
I’m not a EMMA user … and this number (SUN2000-15K-MB001076371-006 this is my Device name it seems) is not my serial number …
BR
Thomas
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I've also tried your code on the tempalate dev page. My setup: Output Inverter (with regex): without regex I've got also a number behind the model description (01074311-0). 01074311-006: SUN2000-10KTL-M1 Output Battery: |
Describe your feature request
As per the wall charger feature request, this 'issue' is intended as a location for people to be able to start gathering information and discussing how it works and how it may potentially be supported in the integration.
Given that the EMMA in future will be the preferred method of installation for Huawei Solar installations, with it :
Hopefully Huawei will be utilising the same modbus registers used on the DDSU/DTSU-666H meters, to provide themselves with maximum compatibility for existing installations upgrading, that will allow for 'out of the box' compatibility with WLCRS. However this needs to be confirmed when documentation is published detailing the modbus register definitions for EMMA.
As EMMA is adding additional functionality, it would be a good expectation that there may be additional modbus registers added to EMMA, that would then need to be reviewed and see if any are 'worthwhile' or of use to request being added to WLCRS.
To date documentation published on EMMA is:
EMMA-(A01, A02) User Manual.pdf v01 - Superceded
FusionSolar App Quick Guide (EMMA).pdf
Huawei - EMMA Quick Installation Guide.pdf
Proper usage
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