New Inverter Generation "Tripower X (STP XX-50)" not working

[Kurisutian]

After setting up a new SMA inverter (SMA Tripower X STP 25-50) I wanted to integrate it with Home Assistant and the current SMA integration.
I have checked with all possible combinations of the settings but unfortunately the connection seems to be impossible. Although I have the installer password, a static IP address and did disable the ssl verification I always get an authentication error (Invalid Authentication) as a result.
So currently the SMA integration does not seem to work with the new SMA inverter generation at all.
I also found a comment in the HA Forum where somebody mentioned that pysma does not support the new generation at all and after opening an issue at the HA side (home-assistant/core#90313) I was asked to open one here as it seems to be rather related to pysma.

[rklomp]

I need debug logging to troubleshoot this as I dont own such a device.

[Kurisutian]

@rklomp as I just literally turned it on last week and it's my first inverter ever would you mind pointing me to the direction where to get the debug logs? Or are you talking about the support log? I'm not quite sure which data you'd need and how I can get them. Sorry for that noobish start of mine. 🫣

[rklomp]

The best option for testing would be to clone this repository and run the example.py script.

[Kurisutian]

Here's what I did receive doing this (password is of course removed definitely the right one was used):

WARNING:pysma:Password should not exceed 12 characters
DEBUG:pysma:Sending POST request to /dyn/login.json: {'data': '{"right": "istl", "pass": "<REMOVED>"}', 'headers': {'content-type': 'application/json'}}
WARNING:pysma:Request to /dyn/login.json did not return a valid json.
ERROR:pysma:Could not start session: Session ID expected [result.sid]
WARNING:__main__:Authentication failed!

I don't know about previous inverters but this one does allow me to log in with a chosen username and not like the energy meter I also have to pick either "user" or "installer". In the initial setup it asks for a username and the role. Perhaps this was different in the previous generation? Can't tell because I do not have some "older" model which I could access so it's just a random guessing.

[rklomp]

Could you log traffic in your browser while logging in to the webinterface of your inverter and share that info?
https://support.zendesk.com/hc/en-us/articles/4408828867098-Generating-a-HAR-file-for-troubleshooting

You can send it in a pm if you prefer that.

[Kurisutian]

Could you log traffic in your browser while logging in to the webinterface of your inverter and share that info? https://support.zendesk.com/hc/en-us/articles/4408828867098-Generating-a-HAR-file-for-troubleshooting

You can send it in a pm if you prefer that.

Don't really know how to send a PM over GitHub. I was under the impression there is no such option... do you have a place where I can send the file to?

[rklomp]

Ah yes you are right. I thought my discord name was on my profile. Do you have discord? My username is rklomp#3849

[Kurisutian]

Thanks, I did sent you a request (Kurisutian#0542)... I'm not that often in there but I did create an account at one point.

[rklomp]

Thanks for the har file. I looked at the communication with the inverter. These new models use a new api to communicate with the device which is completely different to the current implementation for pysma. I don't think we can include it into this library, so a new library should be developed to support this.

[littleyoda]

Just as a remark: I have written a small proof of concept script for sending data from the Tripower X series via MQTT to the Home Assistant.
https://github.com/littleyoda/Home-Assistant-Tripower-X-MQTT

A general question: Do you insist on a new library or would you accept a PR with an extension?
I think this is because it is difficult for users to know which library to use.

[rklomp]

If we can integrate it nicely into one library that would be great. Just make a proposal and I will have a look at it :)

[mrestorff]

Implementing the new Tripower X series is going to involve a bit more work, as the webconnect API has been changed up completely.

There's now a bearer token required for authentication and they've added proper user management (no more password-only login). All the endpoints have changed, as well as the JSON responses and naming scheme of the measurements and parameters.

[AnotherDaniel]

I've just today started trying to integrate my tripower unit with homeassistant, running into the same issue,leading me here. Will clone the repo and look at the code later today, is there any information/logs/etc needed to help this along?

[Kurisutian]

Has there been any new insights on this? Just asking out of curiosity not out of impatience (I have an energy meter in place so I can get the most basic information needed from there). Just wanted to know if there has been any breakthrough from anyone or anything I could help with by testing it or anything. 😄

[studiotijn]

Hello everyone, I found this thread since I am owner of a Tripower X STP 15-50. Really looking forward to the alfa-reseales and final result. I am unexperienced in writing code and troubleshooting connection-issues and figuring out how to write a code that implements the required API etc.
If I can be of any help (for testing/validation) please let me know.
Keep up the good work.