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Huawei SUN2000 Inverter: WIFI Dongle Connection, Firmware Update & FusionSolar

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  • #421 19800975
    akir19
    Level 10  
    Call the installer for the password, or you can reset the inverter and set a new password yourself
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  • #422 19801108
    Sesjusz
    Level 10  
    ak12345 - after updating the firmware, I had to do a quick configuration again and the most important step was to find the optimizers again, without that, my production did not start. So a downgrade wouldn't help either. Perhaps it is better to stay on the new firmware, but do this initial configuration by logging directly to the inverter's wifi and there on the installer's account.

    By the way, apparently on the new firmware for the dongle (and having the new firmware 140 of the inverter enabled full TCP modbus communication), you can connect the inverter to your home network via the Ethernet cable and download the data to the HomeAssistant via the inverter's IP. There is no need to put a wifi computer a few meters from the inverter ;) I have a question for you - how did you implement such a connection with HA? Do you use wifi and download data from the inverter or maybe using the "KIOSK" link? Or maybe you are already downloading the cable on the new dongle firmware?
  • #423 19801135
    akir19
    Level 10  
    It works on the cable and on WiFi from the dongle, you do not need to connect to a hotspot
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  • #424 19801182
    Sesjusz
    Level 10  
    Thanks Akir! I have just been trying to make a connection at home for a few days and I decided to work on the cable, something is not going ... basically it shows something only in daily yield and total yield.
    Integration panel with three visible Huawei Solar entities

    I used a script popular on the Internet and changed the name of the inverter (entity) to my name, basically an abbreviated name because it is much longer, maybe I should also add port 502, but in the new software I concluded that it is not necessary. Why don't you give me an idea where I should look for a gap? :)

    sensor:
      - platform: huawei_solar   
        host: '192.168.3.43'
        optimizers: true
        battery: false
        slave: 1
        
    sensor:
    - platform: template
      sensors:
        pv_01_voltage:
          friendly_name: "String 1 napięcie"
          unit_of_measurement: 'V'
          icon_template: mdi:flash-alert-outline
          value_template: "{{ state_attr('sensor.sun2000_8ktl_m1', 'pv_string_01_voltage') }}"
    
        pv_02_voltage:
          friendly_name: "String 2 napięcie"
          unit_of_measurement: 'V'
          icon_template: mdi:flash-alert-outline
          value_template: "{{ state_attr('sensor.sun2000_8ktl_m1', 'pv_string_02_voltage') }}"
    
        pv_01_current:
          friendly_name: "String 1 natężenie"
          unit_of_measurement: 'A'
          icon_template: mdi:current-dc
          value_template: "{{ state_attr('sensor.sun2000_8ktl_m1', 'pv_string_01_current') }}"
    
        pv_02_current:
          friendly_name: "String 2 natężenie"
          unit_of_measurement: 'A'
          icon_template: mdi:current-dc
          value_template: "{{ state_attr('sensor.sun2000_8ktl_m1', 'pv_string_02_current') }}"
    
        phase_a_voltage:
          friendly_name: "Faza 1 V (f)"
          unit_of_measurement: 'V'
          icon_template: mdi:flash-alert-outline
          value_template: "{{ state_attr('sensor.sun2000_8ktl_m1', 'phase_A_voltage') }}"
    
        phase_b_voltage:
          friendly_name: "Faza 2 V (f)"
          unit_of_measurement: 'V'
          icon_template: mdi:flash-alert-outline
          value_template: "{{ state_attr('sensor.sun2000_8ktl_m1', 'phase_B_voltage') }}"
    
        phase_c_voltage:
          friendly_name: "Faza 3 V (f)"
          unit_of_measurement: 'V'
          icon_template: mdi:flash-alert-outline
          value_template: "{{ state_attr('sensor.sun2000_8ktl_m1', 'phase_C_voltage') }}"
    
        m_grid_a_voltage:
          friendly_name: "Faza 1 V (m)"
          unit_of_measurement: 'V'
          icon_template: mdi:flash-alert-outline
          value_template: "{{ state_attr('sensor.sun2000_8ktl_m1', 'grid_A_voltage') }}"
    
        m_grid_b_voltage:
          friendly_name: "Faza 2 V (m)"
          unit_of_measurement: 'V'
          icon_template: mdi:flash-alert-outline
          value_template: "{{ state_attr('sensor.sun2000_8ktl_m1', 'grid_B_voltage') }}"
    
        m_grid_c_voltage:
          friendly_name: "Faza 3 V (m)"
          unit_of_measurement: 'V'
          icon_template: mdi:flash-alert-outline
          value_template: "{{ state_attr('sensor.sun2000_8ktl_m1', 'grid_C_voltage') }}" 
    
        phase_a_current:
          friendly_name: "Faza 1 A (f)"
          unit_of_measurement: 'A'
          icon_template: mdi:current-ac
          value_template: "{{ state_attr('sensor.sun2000_8ktl_m1', 'phase_A_current') }}"
    
        phase_b_current:
          friendly_name: "Faza 2 A (f)"
          unit_of_measurement: 'A'
          icon_template: mdi:current-ac
          value_template: "{{ state_attr('sensor.sun2000_8ktl_m1', 'phase_B_current') }}"
    
        phase_c_current:
          friendly_name: "Faza 3 A (f)"
          unit_of_measurement: 'A'
          icon_template: mdi:current-ac
          value_template: "{{ state_attr('sensor.sun2000_8ktl_m1', 'phase_C_current') }}"
    
        pv_input_power:
          friendly_name: "Produkcja DC"
          unit_of_measurement: 'W'
          icon_template: mdi:solar-power
          value_template: "{{ state_attr('sensor.sun2000_8ktl_m1', 'input_power') }}"
    
        power_meter_active_power:
          friendly_name: "Zużycie prądu"
          unit_of_measurement: 'W'
          icon_template: mdi:transmission-tower
          value_template: "{{ state_attr('sensor.sun2000_8ktl_m1', 'power_meter_active_power') }}"
     
        active_grid_a_power:
          friendly_name: "Zużycie A"
          unit_of_measurement: 'W'
          icon_template: mdi:transmission-tower
          value_template: "{{ state_attr('sensor.sun2000_8ktl_m1', 'active_grid_A_power') }}"
     
        active_grid_b_power:
          friendly_name: "Zużycie B"
          unit_of_measurement: 'W'
          icon_template: mdi:transmission-tower
          value_template: "{{ state_attr('sensor.sun2000_8ktl_m1', 'active_grid_B_power') }}"
     
        active_grid_c_power:
          friendly_name: "Zużycie C"
          unit_of_measurement: 'W'
          icon_template: mdi:transmission-tower
          value_template: "{{ state_attr('sensor.sun2000_8ktl_m1', 'active_grid_C_power') }}"
     
        m_grid_exporterd_energy:
          friendly_name: "Prąd oddany do sieci"
          unit_of_measurement: 'kWh'
          icon_template: mdi:transmission-tower
          value_template: "{{ state_attr('sensor.sun2000_8ktl_m1', 'grid_exporterd_energy') }}"
     
        m_grid_accumulated_energy:
          friendly_name: "Prąd pobrany z sieci"
          unit_of_measurement: 'kWh'
          icon_template: mdi:transmission-tower
          value_template: "{{ state_attr('sensor.sun2000_8ktl_m1', 'grid_accumulated_energy') }}"
    
        daily_yield:
          friendly_name: "Produkcja dziś"
          unit_of_measurement: 'kWh'
          icon_template: mdi:transmission-tower
          value_template: "{{ state_attr('sensor.sun2000_8ktl_m1', 'daily_yield') }}"
    
        total_yield:
          friendly_name: "Produkcja total"
          unit_of_measurement: 'kWh'
          icon_template: mdi:transmission-tower
          value_template: "{{ state_attr('sensor.sun2000_8ktl_m1', 'total_yield') }}"
    
        pv_temperatura:
          friendly_name: "Temperatura falownika"
          unit_of_measurement: '°C'
          value_template: "{{ state_attr('sensor.sun2000_8ktl_m1', 'internal_temperature') }}"   
    
        pv_efficiency:
          friendly_name: "Efetywność Falownika"
          unit_of_measurement: '%'
          value_template: >
            {% if state_attr('sensor.sun2000_8ktl_m1', 'efficiency')|float < 100 %}
              {{ state_attr('sensor.sun2000_8ktl_m1', 'efficiency') }}
            {% else %}
              0
            {% endif %}
    
        energy_used:
          friendly_name: "Zużycie prądu dom"
          unit_of_measurement: 'kWh'
          value_template: >
            {{ '%0.2f' | format(states('sensor.total_yield') | float - 
                                states('sensor.m_grid_exporterd_energy') | float + 
                                states('sensor.m_grid_accumulated_energy') | float) }}
  • #425 19801193
    akir19
    Level 10  
    Go to the entities and expand the attributes you have all the information
  • #426 19801235
    Sesjusz
    Level 10  
    Below what it looks like after opening the entity. I've been working on it for a long time, something I probably don't know, or maybe something wrongly entered in the scripts :(
    Of course, in the information in the application from Huawei, it normally shows production.

    - Only this data displays from yesterday the same:

    Huawei SUN2000 Inverter: WIFI Dongle Connection, Firmware Update & FusionSolar Huawei SUN2000 Inverter: WIFI Dongle Connection, Firmware Update & FusionSolar

    Other examples, no data inside:

    Huawei SUN2000 Inverter: WIFI Dongle Connection, Firmware Update & FusionSolar Huawei SUN2000 Inverter: WIFI Dongle Connection, Firmware Update & FusionSolar Huawei SUN2000 Inverter: WIFI Dongle Connection, Firmware Update & FusionSolar Huawei SUN2000 Inverter: WIFI Dongle Connection, Firmware Update & FusionSolar Huawei SUN2000 Inverter: WIFI Dongle Connection, Firmware Update & FusionSolar Huawei SUN2000 Inverter: WIFI Dongle Connection, Firmware Update & FusionSolar Huawei SUN2000 Inverter: WIFI Dongle Connection, Firmware Update & FusionSolar
  • #428 19801272
    Sesjusz
    Level 10  
    Akir, it looks beautiful.
    Could you please send your configuration in a free moment? :) I have no idea what is wrong with me. Do you have the latest dongle firmware * 126? And inverter * 140?
  • #429 19801842
    gitpusher
    Level 12  
    Sesjusz wrote:
    Akir, it looks beautiful.
    Could you please send your configuration in a free moment? :) I have no idea what is wrong with me. Do you have the latest dongle firmware * 126? And inverter * 140?

    @Session, if you are still struggling with this and you want to eliminate the wrong home assistant configuration, you can try my hard-a .
    This is my automation program that can monitor most of the SUN2000 parameters.
    The HA is probably cool for some applications, but I preferred to keep it simple.
    The program in the appropriate configuration, on the one hand, connects to the SUN2000 over TCP / Modbus, and on the other hand, it puts the data into the graph. I don't think it could be easier :)
    I make a chart for myself from it:
    Huawei SUN2000 Inverter: WIFI Dongle Connection, Firmware Update & FusionSolar

    Just in case: configuration description here
  • #430 19802074
    Sesjusz
    Level 10  
    Thank you Ggitpusher, it looks great for you. Unfortunately, I have no idea how to run the program. I am a beginner in HA and here I feel that it is even higher :) I have HA installed on Debian, I think I would have to compile and run your program as a daemon, I understand that it integrates with the HomeAssistant API and throws data into it. I wanted to make a rule at home that when I have a production greater than X, it starts my socket with a certain power-hungry device plus a few more actions, so I wanted an HA, in which I would also operate a number of sensors. At this point, it seems easiest to get the script to work. But I will also post your solution, maybe I can get it started, google, read ...
  • #431 19802088
    akir19
    Level 10  
    Sesjusz wrote:
    Akir, it looks beautiful.
    Could you please send your configuration in a free moment? :) I have no idea what is wrong with me. Do you have the latest dongle firmware * 126? And inverter * 140?

    I am not a fan of charts, I saw on some home assistant forum our compatriot wrote down the charts beautifully.
    
    sensor:
      - platform: huawei_solar   
        host: '192.168.0.161'
        optimizers: false
        battery: false 
        slave: 1
        
      - platform: template
        scan_interval: 1
        sensors:    
          daily_yield:
            friendly_name: "dzienna_produkcja"
            value_template: "{{ state_attr('sensor.sun2000_6ktl_m0', 'daily_yield') }}"
            unit_of_measurement: "kWh"
    

    etc. with other sensors available from the sensor.sun2000_blablabla entity
    in each version of the firmware of the phono and dongle it works the same.
  • #432 19802173
    gitpusher
    Level 12  
    Sesjusz wrote:
    I am a beginner in HA and here I feel that it is even higher :) I have HA installed on Debian, I think I would have to compile and run your program as a deamon, I understand that it integrates with the HomeAssistant API and throws data into it.

    Yes - it is written in rust (I personally do not like python).
    If you are not on the topic, I would advise you not to, because you guessed right that you need to pull rust and compile a project on your own - it is a bit of fun with it and you have to sit a bit on Linux topics ...
    It has nothing to do with home assistant or its API. On the one hand, I talk to the inverter - on the other hand, I sign up for influxdb. From this you can make graphs in graphs and that's all I need at the moment.

    I put it here more as a curiosity - maybe someone will like this solution more. An undeniable plus compared to HA is the consumption of slingshot resources which are negligible and operational reliability (at least that was my goal when writing this code).
    The bonus is that all information is logged, so the inverter operation / errors, etc., can be viewed in the log file like any other system log ...
    Perhaps HA is like that too - I don't know - because I don't use it.

    Sesjusz wrote:
    I wanted to make a rule at home that when I have a production greater than X, it starts my socket with a certain power-hungry device plus a few more actions, so I wanted an HA, in which I would also operate a number of sensors. At this point, it seems easiest to get the script to work. But I will post your solution, maybe I can get it started, google, read ...

    Then HA will definitely be better for you because it is more flexible and you can do anything there. I just monitor the inverter and collect data from it - I don't need to take any action.

    akir19 wrote:
    I am not a fan of charts, I saw on some home assistant forum our compatriot wrote down the charts beautifully.

    I see. Everyone does what they like / what they need :)
    And when it comes to this compatriot, his name is Rafał Ligęza, and the thread you are writing about probably means this one:
    https://community.home-assistant.io/t/integration-solar-inverter-huawei-2000l/132350


    @ akir19
    What's your grid code set?
    Because I can see that Emilv2 is not on the list and that's why you fly out in HA with an unknown status:
    https://gitlab.com/Emilv2/huawei-solar/-/blob/master/src/huawei_solar/huawei_solar.py#L1010
  • #434 19802441
    ak12345
    Level 2  
    Sesjusz wrote:
    ak12345 - after updating the firmware, I had to do a quick configuration again and the most important step was to find the optimizers again, without that, my production did not start. So a downgrade wouldn't help either. Perhaps it is better to stay on the new firmware, but do this initial configuration by logging directly to the inverter's wifi and there on the installer's account.

    By the way, apparently on the new firmware for the dongle (and having the new firmware 140 of the inverter enabled full TCP modbus communication), you can connect the inverter to your home network via the Ethernet cable and download the data to the HomeAssistant via the inverter's IP. There is no need to put a wifi computer a few meters from the inverter ;) I have a question for you - how did you implement such a connection with HA? Do you use wifi and download data from the inverter or using the "KIOSK" link? Or maybe you are already downloading the cable on the new dongle firmware?


    when I looked at it more it looked like that for about 30 minutes from the start the inverter was in the standby mode and showed "0" production, and then it went to some other mode in which it showed "-".

    Fortunately, the huawei support did downgrade the inverter firmware to 135 but left 126 on the dongle (in which I had already activated the modbus) and with this configuration, the data for the home assistant is elegantly downloaded to the wifi dongle, so I do not have to pull any cable. Today, despite a cloudy day, there was some production and everything looks like it works ok.
  • #435 19802505
    lizak1983
    Level 15  
    gitpusher wrote:
    If you are not on the topic, I actually advise you not to, because you guessed right that you have to pull rust and compile a project on your own - it is a bit of fun with it and you have to sit a bit on Linux topics ...
    It has nothing to do with home assistant or its API. On the one hand, I talk to the inverter - on the other hand, I sign up for influxdb. From this you can make graphs in graphs and that's all I need at the moment.


    All of this can be done in HA. For me the HA (core version) is the qnap ts-253a NAS and in my opinion it consumes little resources. With the HA supervised version, everything is available for download from the HA interface, i.e. influxdb and grafana. The graphs themselves are easy to do in graphing, but it's a matter of who needs it.

    In addition, from the HA level, I send the data to pvmonitor.pl, so I do not even feel the service work or the failure of the fusion solar because I do not use them.

    Sesjusz wrote:
    I wanted to make a rule at home that if I have a production greater than X, it starts my socket with a certain power-hungry device plus a few more actions

    There is also no problem with this, you can easily click it graphically in the automation. I also recommend a rule that turns on the socket load when the voltage approaches 253V. How can I help you with HA configuration.
    Huawei SUN2000 Inverter: WIFI Dongle Connection, Firmware Update & FusionSolar
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  • #437 19807062
    lizak1983
    Level 15  
    akir19 wrote:
    How to make a template to count the production from the last month?

    Is it about template in HA?

    utility_meter:
      miesieczna_produkcja:
        source: sensor.total_yield
        cycle: monthly
      roczna_produkcja:
        source: sensor.total_yield
        cycle: yearly
  • #438 19807111
    akir19
    Level 10  
    I did it through the utility meter does it count the calendar month or 30 days from commissioning?
  • #439 19807125
    lizak1983
    Level 15  
    A calendar month, if you want to measure according to specific dates, e.g. a year from launch, you can use something like this:

    utility_meter:
      roczna_produkcja_5maj:
        source: sensor.total_yield
        cron: "0 0 5 5 *"


    The syntax is like in cron, the example above is the annual production from May 5th.
  • #440 19811583
    qrko
    Level 14  
    I will only add my three cents, because I also have an inverter connected with HA, that all these charts look cool on the screens and I was also fascinated with them before they connected the panels to me, but in the end I'm from people who look there several times a day (I have PV 2 weeks maybe it will pass :P ) and looking at these graphs I would simply get nystagmus. There is nothing like a simple and clear card with delicate graphics, designed by a friend whose source code has already appeared in the posts above.

    Huawei SUN2000 Inverter: WIFI Dongle Connection, Firmware Update & FusionSolar
    I am still waiting to connect the dtsu666-h meter, hence the nonsense at the top of the picture.

    For this simple chart colored according to current power and everything on a tray.
    Huawei SUN2000 Inverter: WIFI Dongle Connection, Firmware Update & FusionSolar
    Violet and orange over the blue one, I greet the perceptive ones :)

    EDIT: There were questions about the card from the first picture - as I am not its author, please refer to the place where the author published it:
    https://community.home-assistant.io/t/integration-solar-inverter-huawei-2000l/132350/225
  • #441 19815101
    qrko
    Level 14  
    Someone can show or write what are the reactive power settings in the inverter? Tauron's SIDE suggested that the compensation should be active in order to minimize the number of inverter shutdowns in high sunlight, but I suspect that it is just help desk gibberish so that there is something to paste and close the application.
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  • #442 19815384
    oliniusz
    Level 7  
    Hey dear, to those who have recently bought the dtsu666-h meter, can I ask you for directions to stores or wholesalers, where you managed to buy it relatively painlessly and within a reasonable time?

    I did not know that it would be rather hard to find - on Allegro I only see dtsu666 (without h) without transformers and some historical auctions. All stores have to order, goods temporarily unavailable or higher prices.

    So far I found on tim.pl available on request, but I have not called them yet to see if they would be able to get it.


    Besides, to add something to the topic, I recently updated the firmware for my SUN2000-5KTL-M1 inverter from version 135 to 140 and the dongle from 117 to 126 without any problems via the website. Just in case, then I connected to the inverter directly and went through Quick Settings again, but I guess I didn't have to. All settings, passwords for home wi-fi etc. were preserved. In the morning, the inverter detected light and production started as usual.


    EDIT: I already got the contact information for PW (thank you), I called and confirmed that they have the meter in stock - today or tomorrow they are to be shipped.
  • #443 19815657
    qrko
    Level 14  
    oliniusz wrote:
    dongle from 117 to 126 via the website

    How is it done? I don't see anything like that there. I uploaded the dongle through the SUN2000 app.
  • #444 19815666
    oliniusz
    Level 7  
    qrko wrote:

    How is it done? I don't see anything like that there. I uploaded the dongle through the SUN2000 app.


    I did it via the portal https://region04eu5.fusionsolar.huawei.com/, because the dongle was not visible locally when I connected directly to the inverter via the app. Apparently, you can disconnect and connect the dongle, then it works in AP mode for some time.

    After logging in: Plants -> Device -> Upgrade Management ( https://region04eu5.fusionsolar.huawei.com/pv...x.html#/settings/devupgrade/device-versionmgr ).

    Then I clicked 'Add', chose the device type, target firmware version, and which dongle from which farm. It took a few minutes, the dongle restarted, or I also restarted it to be sure and everything went smoothly.
  • #445 19815696
    qrko
    Level 14  
    oliniusz wrote:
    the dongle was not locally visible when I connected through the app directly to the inverter. Apparently, you can disconnect and connect the dongle, then it works in AP mode for some time.
    You can also turn the inverter off and on. When he gets up, Dongle issues AP for a few minutes.

    oliniusz wrote:
    After logging in: Plants -> Device -> Upgrade Management

    Everything is clear, I have no authorization, so I could not find it.
    Huawei SUN2000 Inverter: WIFI Dongle Connection, Firmware Update & FusionSolar
  • #446 19815706
    oliniusz
    Level 7  
    qrko wrote:
    You can also turn the inverter off and on. When he gets up, Dongle issues AP for a few minutes.


    I am pretty sure, then, that it must be physically turned off and on, because as soon as I restarted the inverter, the dongle did not appear in the available networks.

    qrko wrote:
    Everything is clear, I have no authorization, so I could not find it.


    Man, it's linden. Not sure if you have a user or farm owner account? It's good that I did not allow myself to connect the inverter to the installer's account.
  • #447 19815725
    qrko
    Level 14  
    oliniusz wrote:
    I'm pretty sure then it needs to be physically turned off and on,

    Yes, I was turning it off physically.

    oliniusz wrote:
    Man, it's linden. Not sure if you have a user or farm owner account?

    In FusionSolar I have an ordinary user, fortunately the local administrator password on the inverter and donglu are unchanged so through Sun2000 I can do whatever I want. I mean, I could, because I don't want to bury anything there except for possible updates in the future :)
  • #448 19818073
    jamzed
    Level 6  
    Does ModBus work for you in the inverter AP (ktl-m1) in the SPC140 version (the one on 192.168.200.x: 502)? Because I noticed that it is no longer available and I do not have permission to download the Release Notes ...
  • #449 19818080
    oliniusz
    Level 7  
    jamzed wrote:
    Does ModBus work for you in the inverter AP (ktl-m1) in the SPC140 version (the one on 192.168.200.x: 502)? Because I noticed that it is no longer available and I do not have permission to download the Release Notes ...


    You need to connect directly to the inverter via the app and enable the appropriate option, unless it was somewhere in the communication settings. I can go check and take a screenshot later, but it's fairly easy to find.
  • #450 19818090
    jamzed
    Level 6  
    oliniusz wrote:
    jamzed wrote:
    Does ModBus work for you in the inverter AP (ktl-m1) in the SPC140 version (the one on 192.168.200.x: 502)? Because I noticed that it is no longer available and I do not have permission to download the Release Notes ...


    You need to connect directly to the inverter via the app and enable the appropriate option, unless it was somewhere in the communication settings. I can go check and take a screenshot later, but it's fairly easy to find.


    I know that it turned on for the Dongle ... and I have it turned on, the ModBus on the Dongle works, but the one in the AP of the inverter stopped working. ;-)

Topic summary

The discussion centers on issues and configurations related to Huawei SUN2000 series inverters, particularly focusing on WiFi dongle connectivity, firmware updates, and the FusionSolar platform. Users report successful inverter commissioning and firmware updates but face persistent problems connecting the WiFi dongle, which often blinks red and appears offline in FusionSolar. A reliable workaround is connecting the dongle via Ethernet cable to the router. Changing WiFi network credentials requires logging directly into the inverter through FusionSolar or FusionHome apps, as remote password changes are not supported. Installer accounts have broader configuration permissions than owner accounts, which often restrict access to settings such as location, currency, and power configuration. The discussion also covers optimal network code selection (e.g., Germany-VDE-AR-N-4105 for Poland), MPPT multi-peak scanning settings for shadowed panels, and string capacity configuration aligning with physical panel connections. Users note that inverter startup voltage and MPPT voltage ranges affect minimum panel string length, with debates on using 140V or 240V for calculations. Firmware updates are available but may not always be visible to all users simultaneously; some recommend downgrading FusionSolar app versions to resolve login or configuration issues. The FusionSolar platform's interface and permissions can be non-intuitive, with some users unable to modify installation parameters without installer access. Additional topics include inverter automatic shutdown due to high grid voltage, anti-PID function requiring external devices, and integration with Huawei DTSU666-H smart meters, which are often auto-detected. Overall, the thread provides practical advice on inverter setup, network configuration, firmware management, and troubleshooting communication issues with Huawei SUN2000 inverters and associated software tools.
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