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

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  • #332 19706660
    x4robbo
    Level 12  
    Grzegorz38 wrote:
    Hello,
    I have a SUN2000-6KTL-M1 inverter, I recently upgraded to the V100R001C00SPC136 version, I understand that the latest soft for this inverter is V100R001C00SPC139?
    Has anyone already installed this firmware? and when it comes to the dongle, is it worth changing the soft at all? is it something my soft for dongle is V100R001C00SPC119, on the manufacturer's website I do not see it either.


    I wrote earlier that I made both inverters and dongle and everything works without problems. For me, it improved the connection via wifi with the dongle, plus it recognizes the cascade inverter via RS485 without any problems.
  • #333 19706692
    vlad1947
    Level 2  
    Thanks for the info
    The thing is, I know where it was
    the only thing is that these options have disappeared from the menu
    Huawei SUN2000 Inverter: WIFI Dongle Connection, Firmware Update & FusionSolar Huawei SUN2000 Inverter: WIFI Dongle Connection, Firmware Update & FusionSolar
  • #334 19707953
    vlad1947
    Level 2  
    I scroll down the window, there is nothing about strings - it certainly was because I check it every day.
    It was from a different position, could the installer turn off the preview?
    The point is that one string is most likely oversized, the date of correction is approaching
    and suddenly I have no view of his work
  • #335 19740012
    jarekmodlinski
    Level 1  
    Good afternoon! I have a question if I can configure the Huawei 2000 5ktl inverter external networks to not connect the house directly to the WiFi network at the customer, thank you for your answer
  • #336 19740238
    akir19
    Level 10  
    Hello, I can't figure out these updates on the fusionsolar site.
    In September, I switched from V100R001C00SPC133 to V100R001C00SPC135, my inverter is SUN2000-6KTL-M0
    The list of available updates is attached
    Should I upload with the highest number V100R001C00SPC335?
    Attachments:
  • #337 19740339
    domelek
    Level 17  
    akir19 wrote:
    Hello, I can't figure out these updates on the fusionsolar site.
    In September, I switched from V100R001C00SPC133 to V100R001C00SPC135, my inverter is SUN2000-6KTL-M0
    The list of available updates is attached
    Should I upload with the highest number V100R001C00SPC335?


    upload ... 139 this is the latest.
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  • #338 19740534
    akir19
    Level 10  
    domelek wrote:
    akir19 wrote:
    Hello, I can't figure out these updates on the fusionsolar site.
    In September, I switched from V100R001C00SPC133 to V100R001C00SPC135, my inverter is SUN2000-6KTL-M0
    The list of available updates is attached
    Should I upload with the highest number V100R001C00SPC335?


    upload ... 139 this is the latest.


    Thanks for the quick reply, which inverters is the upgrade with the higher number ending in 335 for? I am looking for some logic for these updates I do not see anything meaningful for m0, m1, m2. My model is M0
  • #340 19740629
    szczukot
    Level 14  
    And even more interesting is that the last available version of 602 is 136. And there is no visible one at all 139
  • #341 19740631
    akir19
    Level 10  
    dprzyb wrote:
    It gets even more interesting when you look at their website -
    Here you will find updates with numbers 601 and 602 :lol:
    I asked several times here on the forum about the logic of this numbering, but no one bothered with the answer


    This is some sick, higher numbers are not newer?
    Has anyone tested an update to the 124 dongle? I drag the data locally after the spanking, I don't want the integration to fail. I struggled with this a bit before he started sending spanked data instead of PEP to Homeassistant.
  • #342 19741250
    bogdan11
    Level 11  
    akir19 wrote:
    Has anyone tested an update to the 124 dongle? I drag the data locally after the spanking, I don't want the integration to fail.


    I installed it, the LAN connection works as in the previous version.
  • #343 19741316
    akir19
    Level 10  
    Do you extract data for some integration or use only for fusion sync? This is a significant difference
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  • #345 19741417
    akir19
    Level 10  
    These are two completely different things

    Added after 1 [hours] 46 [minutes]:

    rokbok wrote:
    dprzyb wrote:
    @rokbok - can you paste what the menu looks like in this place for you?


    For me, the update path is as below, if you do not have these options, they must be the installer's permission.

    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

    What inverter model do you have with this soft?
  • #346 19741991
    rokbok
    Level 38  
    akir19 wrote:
    What inverter model do you have with this soft?


    It is not soft but installer powers.
  • #347 19742114
    akir19
    Level 10  
    I do not understand? Like installer permissions, what do you choose the target version of installer permissions?? It is about the source version and the target version of the software
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  • #348 19742328
    rokbok
    Level 38  
    The options in the Fusion Solar menu, whether on a PC or a smartphone, depend on the permissions given when creating an account, it can be an installer, owner, guest account.
    Each of these options has some permissions that can be used to manage the account, if you do not see these options as in the screenshot, it means that you do not have permission to do so, soft has nothing to do with it.
  • #349 19742336
    akir19
    Level 10  
    Hey, I'm logging in to the installer, after all. My question was about the version with the ending 334, to which inverter you installed it, what rights do you have?
  • #350 19742504
    rokbok
    Level 38  
    akir19 wrote:
    My question was about the version with the ending 334, to which inverter you installed it ...


    I'm already satisfying your curiosity ;) , the SUN2000L-3.68KTL inverter.
  • #351 19742857
    akir19
    Level 10  
    This is some other than mine I have sun2000-6ktl m0. sun2000L means single phase?
  • #352 19742878
    rokbok
    Level 38  
    Yes, this is a single phase inverter, also indicated by the reference 3.68.
  • #353 19742920
    akir19
    Level 10  
    Yep yeah yours I know 3.68 has a single phase. In the Huawei service manual, I did not see such a sun2000L designation, so I asked if this L designation indicates one phase. Or maybe there is sun2000L-10ktl
  • #354 19752813
    gitpusher
    Level 12  
    @ aikir19
    Have you finally installed this V100R001C00SPC139 on your SUN2000-6KTL-M0?
    I am also very irritated by the fact that the torment to reach such information ...
    Officially he writes like a bull like this:
    "Firmware2: SUN2000MA V100R001C00SPC139 is released for the SUN2000M1 / M2 series inverters."
    about M0 not a word ...
    As I want to read on their website, it ends with a login window with the words: "Sign In with Uniportal ID"

    ps. remember that from the dongle version V100R001C00SPC124 port 502 (modbus TCP) must be included in the options (and only the latest solar fusion APP for android allow it). Yesterday I cut it when I raised the dongle to 124 and then I had to downgrade to 123.
  • #355 19752838
    akir19
    Level 10  
    I installed this version on the inverter, I thought it would solve a problem. The inverter adds to me every week that we are kind of a battery. I remove it, it comes back, and I have the only bike under it?
  • #356 19752972
    dprzyb
    Level 22  
    gitpusher wrote:
    As I want to read on their website, it ends with a login window with the words: "Sign In with Uniportal ID"

    Then register on this page. After a few days it will stick to you and you will have peace of mind for the future
  • #357 19754860
    gitpusher
    Level 12  
    I just wanted to confirm that I was able to successfully update the SUN2000-6KTL-M0 model with the portal to:
    V100R001C00SPC139 (inverter)
    V100R001C00SPC124 (dongle)
    Of course, I had to enable the Modbus-TCP settings in the inverter settings (using the fusion solar app for Android). Generally, these settings are in the inverter itself (they are configured via the internal wifi of the inverter itself). I even set it up before I even uploaded a newer soft to the dongle itself.
    Unfortunately, what I expected to improve (response times) are even about 5 seconds worse for my set of downloaded parameters after modbus-tcp :(
    It is not sick that the connection via wifi gives this set of data a flash (as I remember correctly 3-4 seconds) and the same set of downloaded via LAN (sic!) Takes almost 20 seconds with this method?
    Sick !!!
    But what to say - this is our Chinese technology.
    Anyone using a hardware modbus? I suppose it goes there too (and probably the fastest).

    I made a simple graph to illustrate the problem. I put at the bottom what I was updating and how it influenced the response times - of course, we do not take the pins into account ...
    Huawei SUN2000 Inverter: WIFI Dongle Connection, Firmware Update & FusionSolar

    Just a little info about the inverter update itself - they recommend doing it with the panels in the sun - my cousin did the same and did the update early in the morning and in addition the panels under the snow - it went without problems ...
  • #358 19760497
    Robyn212
    Level 16  
    I fired up the installation on 4KTL / M1 at the weekend. The inverter has the software version with the ending 132. After entering the installation and update management tab, I can't find anything for me. In the application on the phone, it does not show me anything, I go to the message center> notification about updating the device.
    How can I force an update having the update files?
  • #359 19760563
    bogdan11
    Level 11  
    Without the installer password, I did it via the SUN2000 APP. After connecting to the inverter wifi, you have the choice whether to update automatically or manually. He could not see any files from the machine and manually after downloading the firmware to the phone it went without a problem. Same with dongle.
  • #360 19760564
    gitpusher
    Level 12  
    @ robyn212
    I once made a post about updating from fusion solar:
    https://skyboo.net/2021/09/how-to-do-a-firmware-upgrade-using-fusionsolar/
    May be useful (installer account required)

    And manually, you have to somehow obtain the firmware - apparently, if you write to the support, there is no problem and they send it - and then you do it from the level of the Android application ...
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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.
Summary generated by the language model.
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