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

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  • #451 19818164
    lizak1983
    Level 15  
    @jamzed
    Rather, it should work, from what I read once, the application communicates with the inverter via modbus. It is possible that something is already connected to the inverter, e.g. the application did not close the connection. Have you tried to turn off the wifi on your phone or forget the inverter network and then restart the inverter?
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  • #452 19818299
    jamzed
    Level 6  
    lizak1983 wrote:
    @jamzed
    Rather, it should work, from what I read once, the application communicates with the inverter via modbus. It is possible that something is already connected to the inverter, e.g. the application did not close the connection. Have you tried to turn off the wifi on your phone or forget the inverter network and then restart the inverter?


    It's not like that, it's just that TCP / 502 is closed ...

    Code: text Expand Select all Copy to clipboard
    $ nc -v 192.168.200.1 502
nc: connect to 192.168.200.1 port 502 (tcp) failed: Connection refused
  • #453 19818346
    rokbok
    Level 38  
    jamzed wrote:
    Code: $ nc -v 192.168.200.1 502
    nc: connect to 192.168.200.1 port 502 (tcp) failed: Connection refused


    And this address should not look like this: 192.168.200.1:502, you lack a colon, unless the code omits it, I am writing about it because if I want to log in to CCTV cameras, it will not be possible without this colon.
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  • #454 19818461
    jamzed
    Level 6  
    lizak1983 wrote:
    @jamzed
    Rather, it should work, from what I read once, the application communicates with the inverter via modbus. It is possible that something is already connected to the inverter, e.g. the application did not close the connection. Have you tried to turn off the wifi on your phone or forget the inverter network and then restart the inverter?


    Such a curiosity, I did a little debug and I see that the ModBus port has been changed from TCP / 502 to TCP / 6607.

    Code: text Expand Select all Copy to clipboard
    >>> import huawei_solar
>>> inverter = huawei_solar.HuaweiSolar('192.168.200.1', port=6607, slave=0)
>>> inverter.get("system_time").value
datetime.datetime(2022, 1, 13, 20, 53, 29, tzinfo=)
  • #455 19818839
    lizak1983
    Level 15  
    So if something works well, it's better not to move. With these recent updates from Huawei, you never know. A year ago they changed my IP address in the inverter, now I see they started the port :)
  • #456 19824961
    lizak1983
    Level 15  
    jamzed wrote:
    Such a curiosity, I did a little debug and I see that the ModBus port has been changed from TCP / 502 to TCP / 6607.

    After upgrade to spc140, no inverter access from sun2000 and fusionsolar. The scan did not show any open ports for me.
    Code: text Expand Select all Copy to clipboard
    Nmap done: 1 IP address (1 host up) scanned in 42.88 seconds
root@HA:~# nmap -p 1-65000 192.168.8.1
Starting Nmap 7.80 ( https://nmap.org ) at 2022-01-17 08:47 CET
Nmap scan report for 192.168.8.1
Host is up (0.0028s latency).
All 65000 scanned ports on 192.168.8.1 are closed
MAC Address: E8:94:F6:xxxxxxxx 

    Restarting the inverter did not help.
  • #457 19825897
    jamzed
    Level 6  
    lizak1983 wrote:
    jamzed wrote:
    Such a curiosity, I did a little debug and I see that the ModBus port has been changed from TCP / 502 to TCP / 6607.

    After upgrade to spc140, no inverter access from sun2000 and fusionsolar. The scan did not show any open ports for me.
    Code: text Expand Select all Copy to clipboard
    Nmap done: 1 IP address (1 host up) scanned in 42.88 seconds
root@HA:~# nmap -p 1-65000 192.168.8.1
Starting Nmap 7.80 ( https://nmap.org ) at 2022-01-17 08:47 CET
Nmap scan report for 192.168.8.1
Host is up (0.0028s latency).
All 65000 scanned ports on 192.168.8.1 are closed
MAC Address: E8:94:F6:xxxxxxxx 

    Restarting the inverter did not help.


    Well, it doesn't look very good ... the only difference I can see is our inverters use different subnets. I have 192.168.200.X (Sun2000 8KTL-M1), you have 192.168.8.X.

    I haven't seen any settings in the app or in Fusion Solar Cloud for AP of the inverter and Modbus ... And you have access to the inverter via Fusion Solar?
  • #458 19825916
    lizak1983
    Level 15  
    @jamzed
    Exactly 0 access. And here was the problem, because I don't have an installer account. You can set the ip address yourself in the options. For me, by default it was as it is now, about a year ago with some update it changed to 192.168.200.1 but instead of changing everything at home, it was easier to change this address in the inverter. Of course, I checked and after connecting to the network the IP inverter was unchanged.
    I just called the installer and asked him to change the firmware to 139 via the huawei cloud.
  • #459 19828726
    bpsw9a
    Level 6  
    @ lizak1983 I also updated the inverter from 135 to 140, because the Sun2000 app forced the update. After the update, I connected to the SUN2000HVxxx wifi inverter without any problems, I don't remember, but I turned on the modbus in the communication settings.
    After turning on the inverter, don't you also have the SDonglexxx AP to which you can also connect? On SDonglu I have v.124, previously it was v.123.
  • #460 19828740
    lizak1983
    Level 15  
    @ bpsw9a With the inverter WiFi I had no problem to connect, the problem was to connect to the inverter with the fusionsolar or sun2000 application (Message: Unable to connect to the device, try again later), both applications in the latest versions for android. I scanned all the ports and found none open. It is possible that there was an error during the update or because I had a non-standard IP set in the AP settings of the inverter. I also have AP dongle in version 123 and there was no problem to connect.
  • #461 19828757
    bpsw9a
    Level 6  
    lizak1983 wrote:
    (Message: Unable to connect to the device, please try again later)

    Such a message was like Huawei was messing with the servers.
    I have Sun2000 apk in v.3.2.00.015.
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  • #462 19828777
    lizak1983
    Level 15  
    @ bpsw9a And what do the servers have to do with this, since we connect to the inverter offline, then before updating to 140, and then after uploading 139, the connection with the inverter works flawlessly. So far, I do not touch anything and nothing updates since everything is working now.
  • #463 19828785
    bpsw9a
    Level 6  
    I am writing as it was, only then I tried to connect to the Fusionsolar apk via the internet.
    The Fusionsolar app requires an internet connection without connecting.
    Sun2000 works when connected to the inverter ap. User and password Instalator / 00000a (unless changed).
  • #464 19831453
    xszuflax
    Level 11  
    Hi,

    I have a question that I have not found a clear answer to. I would like to connect to the FusionSolar app via a dongle network, not an inverter network. It's mostly about range and convenience. The inverter has FW V100R001C00SPC140 and the dongle V100R001C00SPC126. I have just turned on MODBUS without restrictions (I did not restart the inverter). When trying to connect via FusionSolar, he gets the login screen and enters the installer password, but he gets the error "Unable to connect. Try again" of course, the password works when connecting via the inverter WiFi in both FusionSolar and SUN2000.

    I will add that the network scanner sees the IP with the 502 TCP port open, so I assume that MODBUS works OK:

    Code: text Expand Select all Copy to clipboard
    $ telnet 192.168.1.16 502
Trying 192.168.1.16...
Connected to 192.168.1.16.
Escape character is '^]'.


    Greetings,
    Marcin
  • #465 19831632
    slayeros
    Level 9  
    In the specification of Polish distributors, there is a standard Huawei Dongle with Ethernet and WLAN. I would like to confirm it with you, because while reading this thread I came across a post where someone had only Ethernet or Wi-Fi. Is 1 twisted cat. 5e could you let go of the ethernet signal (2 pairs of wires) and communication with the meter (1 pair of wires)? I will be able to connect to the Home Assistant as soon as the inverter is connected with a twisted pair to the router to which the HA device is connected?
    I would also like to ask, in preparation for installation by the installer I installed myself Fusion Solar and signed up. Do I have to create a corporate profile or is that enough?
    By the way, I would like to ask if the Longi 415M panels in the amount of 16 pieces are better to be connected in 1 string or divided into 2 for Huawei 8kW? The point is that in 1 string they will have practically optimal tension for good efficiency, but in the case of 2 strings, you will benefit from a possible difference in shading time (2 separate frames). The inverter is exaggerated in the event of a future expansion to change the type of heating, so there will be wires for 2 strings anyway, but what solution is better for the installed power at the moment.
    Attachments:
  • #466 19831829
    lizak1983
    Level 15  
    The inverter has its own wifi access point. The dongle has wifi but acting as a client, not an access point and a LAN port. So you have 2 x Wifi and LAN from such an inverter and with the appropriate software versions you can use each of these connections to communicate with the HA. When it comes to releasing one twisted pair of communication with the meter and the Internet, no installer will do it for you. Personally, I would advise against it, which does not mean that it will not work.
  • #467 19832730
    domelek
    Level 17  
    This connection works without any problems for me for several months (eth + RS485),
  • #468 19833489
    xszuflax
    Level 11  
    xszuflax wrote:
    I would like to connect to the FusionSolar app via a dongle network, not an inverter network. It's mostly about range and convenience. The inverter has FW V100R001C00SPC140 and the dongle V100R001C00SPC126. I have just turned on MODBUS without restrictions (I did not restart the inverter). When trying to connect via FusionSolar, he gets the login screen and enters the installer password, but he gets the error "Unable to connect. Try again" of course, the password works when connecting via the inverter WiFi in both FusionSolar and SUN2000.


    I think I found the answer to my problem. It turns out that the login screen that I see in the FusionSolar application when I connect to the local network (so-called through the router) is the dongle login screen. The standard password is 00000a and you can update the firmware there. From what I read, it is impossible to connect to the inverter itself in the "Putting the device into operation" option via the router. Either the inverter AP or the FusionSolar website (of course, some settings are missing: modbus etc.)

    If I am wrong, write to me, my dream is to connect to the inverter in "Putting the device into operation" via a router :-)

    Greetings,
    Marcin
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  • #469 19833570
    rokbok
    Level 38  
    xszuflax wrote:
    From what I read, it is impossible to connect to the inverter itself in the "Putting the device into operation" option via the router.


    I do not know about you, but in this option I connect to the inverter via the router, the login password is, if not changed, the standard 00000a.
    For this to happen, you must have a home WiFi network set up on the inverter, the same way as I connect using the SUN2000 or FusionHome app.

    When you connect via the inverter network, you must be within its range, i.e. at the inverter, when connected via a router, it is enough to be within the WiFi range of the router.
  • #470 19833680
    xszuflax
    Level 11  
    rokbok wrote:

    I do not know about you, but in this option I connect to the inverter via the router, the login password is, if not changed, the standard 00000a.
    For this to happen, you must have a home WiFi network set up on the inverter, the same way as I connect using the SUN2000 or FusionHome app.


    Can you tell how you have set up your home network in the inverter? I assume that the inverter connects to the home network via a dongle and only issues the AP for local connections (not via a router). I assume it works because the data is sent to the FusionSolar portal.

    I have already deleted the apke and installed it again (iPhone v 5.7.065 apk) and when I am logged in to the installer accounts (FusionSolar System, not to be confused with local accounts on the inverter). for operation "

    Thanks
    MT
  • #471 19833761
    rokbok
    Level 38  
    I will not help you in this topic, I do not have a dongle, but only a built-in WiFi in the inverter, so there may be differences.
    Maybe someone with a single was reworking the topic and will say something.
    Maybe try to log into the inverter, select Settings -> Communication configuration, is there an option Router connection settings, that's where you set the SSID and password of your WiFi network.
  • #472 19834042
    lizak1983
    Level 15  
    I have such an AP connection at home, an inverter -> router (bridge) -> switch, and a home network connected to the same switch in a different address class (such a combination to access the inverter from the Home Assistant level) and when I assign an IP address on the phone in the AP range of the inverter, I do not need to be connected directly to the inverter to connect to the sun2000 application, it is enough to be connected to the home network.
  • #473 19834058
    xszuflax
    Level 11  
    lizak1983 wrote:
    I have such an AP connection at home, an inverter -> router (bridge) -> switch, and a home network connected to the same switch in a different address class (such a combination to access the inverter from the Home Assistant level) and when I assign an IP address on the phone in the AP range of the inverter, I do not need to be connected directly to the inverter to connect to the sun2000 application, it is enough to be connected to the home network.


    Well, it's a mega combination of connecting two networks from other subnets to the switch. And it was not easier to put MODBUS on donglu. It seems that on FW 122 + you can do this and then HA talks on MODBUS with a dongler in the same local network, aka home.

    Added after 4 [minutes]:

    rokbok wrote:
    I will not help you in this topic, I do not have a dongle, only built-in WiFi in the inverter, so there may be differences.
    Maybe someone with a single was reworking the topic and will say something.
    Maybe try to log into the inverter, select Settings -> Communication configuration, is there an option Router connection settings, that's where you set the SSID and password of your WiFi network.


    OK, I went to the inverter AP to verify the configuration. IMO settings are correct, however, this connection is made by a dongle even though they are set in the inverter:

    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
  • #474 19834146
    lizak1983
    Level 15  
    xszuflax wrote:
    Well, it's a mega combination of connecting two networks from other subnets to the switch.

    Maybe a combination, but I had an unnecessary additional router, and as I set it up almost two years ago, there was no other way to connect the inverter with the HA. As soon as it was possible to connect to the dongle, I tested it, but the communication is much slower with the dongle and less stable, so I went back to the additional router.
  • #475 19834858
    xszuflax
    Level 11  
    Hi,

    I have already agreed with the configuration of the inverter by AP. But I wanted to ask if there are any options that should be set for the SUN2000-6KTL-M1 inverter with Ulica panels with a total power of 6.4 kWp (2 MPPT, 3.2 kWp) in the Tauron network. Installation on the roof from the south, the angle of the roof is 40 degrees. Generally I have the default settings with the profile of the electric network en-50549-pl. I don't have optimizers.

    In general, the installers were poorly able to start up and configure the inverter and when I saw that they had a problem with entering the WiFi password, I decided to configure the device myself. Anyway, it paid off, I have my installer account and I set up the networks myself. The scary thing is that hardly any team changes AP passwords and default system passwords.

    Greetings,
    MT
  • #476 19837903
    qrko
    Level 14  
    I am also wondering if something is worth changing there on your own to optimize production. In our street, 10 houses have PV and when the sun is shining, the graph resembles a hedgehog. Tauron wrote back to check the reactive power compensation settings (what do you have set on your Huaweia?) But I have a flip that it is helpdesk gibberish.
  • #477 19838744
    xszuflax
    Level 11  
    qrko wrote:
    In our street, 10 houses have PV and when the sun is shining, the graph resembles a hedgehog. Tauron wrote back to check the reactive power compensation settings (what do you have set on your Huaweia?) But I have a flip that it is helpdesk gibberish.


    In Poland, if you want to have something very well done, you first need to educate yourself and become an expert for a given investment. Something that I am discovering and practicing in connection with photovoltaics.

    As for your problems, there may be many reasons for this, but if such jagged graphs appear in all of your neighbors, it may be due to the outdated infrastructure of Tauron in this area. A single thread without the possibility of dispersing the energy you produce to other recipients. And, of course, by raising the voltage on the grid by your installations. Basically, the network should be around 230V, but for your installation to be able to return energy to the network, you must supply a higher voltage and so on to each of your neighbors. When you bid like this, you get to 253V and at this point the inverter cuts off the production. The tension drops and the bidding begins again.

    The Sun 2000 inverter itself has a lot of settings, but nowhere have I found a study of what it is for. Of course, there is an instruction, but a lot of settings are specific to the installation (panels, the angle of the panels, the side of the world, etc.) but also to the operator.

    Greetings,
    MT
  • #478 19839919
    qrko
    Level 14  
    I did not mention it, but yes, I know the reason, it is the> 253V and I know where it comes from, exactly as you wrote - I monitor the voltage and you can see it nicely. We have a relatively new transformer on the street, already in such a noisy box low above the ground, there is hope that something will go down there, but I'm waiting for the neighbors to move their asses and make reports.

    You are also right with the second issue, so that is why I always try to delve into myself as much as possible, hence my questions about the settings in the inverter. For me it looks like below, I am a bit surprised that the app suggests a different setting based on the location (I have selected VDE-AR-N-4105, and it tells EN50549-PL), the question is whether it has a current base and how safe it is to change it to your own. The second setting is this reactive power, I'm curious how you are at home, please check if possible.

    Huawei SUN2000 Inverter: WIFI Dongle Connection, Firmware Update & FusionSolar Huawei SUN2000 Inverter: WIFI Dongle Connection, Firmware Update & FusionSolar
  • #479 19839921
    rekfm
    Level 12  
    A few questions about the installer account.

    Can fitters, without the written consent of the owner, assign the installation to their installer account?
    Do the fitters who took over the installer's account and supervise the installation do it for free?
    According to what I understand, installers can authorize your installations to a half of the poviat and you will not even know about it.
    If I write incorrectly, please correct me - the installer can change the owner of the installation and the owner of the installer NO? Is it for life?
    Who is responsible to the power company for incorrect settings (experiments) made by the installer during operation?
    What documentation should the installer who has granted himself to manage the installation keep?
    What should the owner's supervision over the installer look like if the owner does not even have access to the logs and does not know that the installer was messing with something?

    Such questions came to my mind so quickly.
  • #480 19840065
    xszuflax
    Level 11  
    qrko wrote:
    For me it looks like below, I am a bit surprised that the app suggests a different setting based on the location (I have selected VDE-AR-N-4105, and it tells EN50549-PL), the question is whether it has a current base and how safe it is to change it to your own.


    As I understood the topic, the EN50549-PL profile is a new thing and it was not there in earlier versions of FusionSolar. I have it set to EN50549-PL. I passed this information to a nice gentleman who mentioned the meter to me and he said that it was OK.

    Added after 22 [minutes]:

    rysiekr wrote:
    A few questions about the installer account.
    Can fitters, without the written consent of the owner, assign the installation to their installer account?


    Investors' awareness is so low that nobody is asking this question. Nobody explains it during the installation. My contract was to configure the inverter with the Internet, which in my opinion meant that I would have an account where I could monitor the production.

    As it turned out that they want to connect to some kind of monitoring, i.e. their installer end, as it turned out later, I gave up. The installer was clearly irritated by this fact. This is the same free American as routers from ISPs etc.

    On the other hand, the unaware user does not want to play with all these settings, he will not update the firmware, and he wants to watch the production graph from time to time.

    IMO the problem is that the installer does not have time for "perdoles", he wants to close the installations in one working day and there is no space for investor education. He also does not say anything because then the questions arise.

    rysiekr wrote:

    Do the fitters who took over the installer's account and supervise the installation do it for free?


    I don't think anyone is actively looking at anything. When you start reporting a problem, maybe someone will see something.

    rysiekr wrote:

    According to what I understand, installers can authorize your installations to a half of the poviat and you will not even know about it.


    The installer account is saved on the mobile phone of the solar installation company. If there are more teams, this account or its sub accounts are saved on all devices. Of course, no one controls these phones and, for example, Mr. Janek releases a guy from the team and he decides to turn off all inverters in revenge, he can do it.

    It's still nothing. Nobody changes the AP password and installer account password. It is enough to drive to the property with some wifi signal amplifier and you can also learn how to configure it. AP report with the inverter model, and you can see who has what.

    rysiekr wrote:

    If I write incorrectly, please correct me - the installer can change the owner of the installation and the owner of the installer NO? Is it for life?


    Yes, it's also hard to rewrite the inverter to another installer in the FusionSolar system, so if you got into it, it's a shame. You can probably unscrew it with FusionSolar support.

    rysiekr wrote:

    Who is responsible to the power company for incorrect settings (experiments) made by the installer during operation?


    Well, if you do, you have it written in the annex to the prosumer agreement. By the way, this is an interesting issue, it seems to me that the electrical network is so secured that you will not do anything to them with your activity. Nobody on the part of Tauron has verified my installation, I assume that if something like this, the damage may be local to the meter.

    rysiekr wrote:

    What documentation should the installer who has granted himself to manage the installation keep?


    As above. I think the case is very much on the sidelines of the installation.

    rysiekr wrote:

    What should the owner supervision over the installer look like if the owner does not even have access to the logs and does not know that the installer was messing with something?


    If there is no awareness, then also no problem. And seriously, the answer results from my previous scribbles.
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Topic summary

The discussion revolves around issues related to the Huawei SUN2000 inverter, specifically focusing on WiFi dongle connectivity, firmware updates, and the FusionSolar application. Users report difficulties in connecting the inverter to their home WiFi networks, with some resorting to using Ethernet cables for stable connections. Firmware updates are discussed, with users sharing experiences of updating both the inverter and the dongle, and the impact of these updates on inverter performance. The conversation also touches on the configuration settings for optimal production, including grid codes and reactive power compensation. Users express concerns about the limitations imposed by installers and the need for better access to their inverter settings.
Summary generated by the language model.
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