From what I have read so far, it is not possible to use the dongle if one uses Modbus RTU. But maybe someone has figured out a way to do this.
I’m currently using the Dongle together with two LAN to Wifi bridges connecting to the two internal APs of my two inverters. This used to work perfectly until the end of last year. But now I get frequent Modbus connection errors with the integration. Very annoying. So I would also love to switch to Modbus RTU, but since I’m running a setup with cascaded inverters, I (unfortunately) have to use the dongle.
Yes. If you use the Dongle, then you have to find out the correct IDs of both inverters. This is not always 1 and 2. In my case it was 1 and 16.
If you use LAN to Wifi bridges to connect to each inverter’s access point, then you need to setup the integration twice. One for each inverter (with each inverter having its own LAN to Wifi bridge and IP address).
what do you guys think is the “best” way to connect the inverter to HA? best means: fast communication and short intervals, failsafe, user friendly etc.
Hi, I’m approaching on these days this world, but I could give you my feedback:
the most user friendly way is if you have the installer password or if the installer could turn on the O&M and Modbus TCP to your local network. In this way you should be able to see immediately all what you need from HA.
If you don’t have the above information, another very user friendly way, but also poor way (particularly poor if you have a battery, because in this way you’ll not see nothing about the battery status) is the KIOSK link obtained from the fusion website. You can use fusion integration in HA.
The third way, that I’m running, is to create a bridge between the SUN2000 installer network and your local network. In this way your HA with an ip address like 192.168.1.XXX will communicate with the SUN2000 installer network with ip 192.168.200.1. This isn’t the user friendly way and it require some additional hardware and some networking knowledge. And I’m missing on this latest point…ops…
Thanks for the info. I dont have the installer password. they changed it from default to whatever. so i need to ask them for the PW or to unlock it for me “on air”. doubt they will
can i somehow force installer mode? like reset PW or something like that?
Nope still struggling with this. No idea what I’m doing wrong, at this point I’m contemplating wiping everything I set up and starting with a clean slate!
SPOILER: read till the end, this is a happy ending story!
PREMISE: I know that for skilled people of for whom already did, it seems all so simple. But to me it wasn’t so simple
At the end I’m able to put the inverter in the network by following the same method of dados1988:
In the HA Huawai Integration (downloaded from HACS) I put the IP of the bridge Tp-Link Tl-Wr802N :6607, and it successfully redirects the connection to 192.168.200.1:6607
Compared to dados1988 I’ve just change ip to my network: 192.168.1.146
And of course I’ve insert SN and MAC of my inverter.
Honestly, initially it didn’t connecting to the inverter (from the web interface of the Tp-Link Tl-Wr802N, under “overview” menu, it shows disconnected from S2000) . I had do connect it via the web interface. After that I’ve placed again the config parameters via WINSCP. Rebooted the Tp-link, and the connection works well.
But… see the picture below
I don’t know why, but I was supposing that in this process it doesn’t need to apply any password. My fault…!
Without choosing “elevated permissions” I can acquire only power and voltage (not the battery status information)
Tip: For a windows user like me it was tricky to set-up openwrt, but I’ve found useful the application “winscp”, which permits to modify the setting files without use the command line! Once opened the connection you have just to go throw the folders and copy/paste the setting described by dados1988 (just modify something according with your network 192.168.1.146 SN and MAC of my inverter)
If you need help I could you give you more information… not that I’ve the all in my mind
I think that the principal problem is that inverver doesn’t always export port 6607. When port 6607 not exported, I am not able to login by fusion app with installer credential. The only solution is turn off inverter.
This is my history of port(6607) availability:
Posted this elsewhere, but realised this might be a better place to ask:
My LUNA2000 battery (2 modules of 5kwh) through the Huawei integration shows a total charge value of 277,817.51 kWh. Meanwhile my total discharge value is 398.91 kWh. The FusionSolar app only seems to show each battery’s discharge value, not the total charge value. Would this be a bug or an error from my part?
Bit of context: this is a newly installed battery (few days old). I’m worried I haven’t been given a new battery, although the discharge value puts my mind a bit at ease, that maybe this is just a bug in the integration. Any ideas? Thanks!
That’s a huge difference.
I have a similar system, 2x5kWh batteries. The integration is reporting a total charge of 1,962.6 kWh and 1,962.6 kWh for discharge. The fusion solar app is showing 1.96MWh charge and 1.95MWh discharge, with battery one charge 980.29kWh and battery two having 971.82kWh charge.
@joem I couldn’t seem to find the charge value in the fusion solar app (I’m logging in with the installer account through the dongle tho, they haven’t given me my fusion solar user yet). Could you point me in the right direction?
Device Monitoring → Battery.
Now I realize that I was writing battery charge, but I was meaning discharge.
You can only see the discharge for each module.
In the portal you can set the KPI view to show the total charge/discharge values, but I’m not sure if this is bound to your account or the battery.
It looks like this
Just incase anyone is interested I finally managed to get active power service working using this automation. The trick was I needed to use the automation ui to select only the master inverter so I could then use YAML code to get the ID and then use that it in my own options setup. What I ended up with below reduces my inverter output based on my spot price so I’m not getting charged for sending energy to the grid due to tariffs (which is annoying as I would happily send it if it wouldn’t cost me anything)
Thanks!