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wasilukm / hoymiles-mqtt

Send data from Hoymiles PV plant to Home Assistant without cloud
MIT License
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No response received - ever #9

Closed VincentSC closed 1 year ago

VincentSC commented 1 year ago

Description

Just trying to connect for the first time. I get this error 100% of the time: pymodbus.exceptions.ModbusIOException: Modbus Error: [Input/Output] Modbus Error: [Invalid Message] No response received, expected at least 8 bytes (0 received)

The Hoymiles app works well, and can read the data from all.

This software needs libseccomp2 to be installed, else it won't work. I fixed that already.

Restarted the device, but neither helped.

It seems to connect to the DTU correctly, as other ip-addresses give another error.

What I Did

python3 -m hoymiles_mqtt --mqtt-broker localhost --dtu-host 192.168.50.99 --query-period 5

Also tried the HM microinverter-type. When I add --comm-retry-on-empty True it keeps on looping.

VincentSC commented 1 year ago

Solution: upgrade to DTU SW-version to V00.02.15 (V0.2.0F).

Would be a good thing for the documentation.

wasilukm commented 1 year ago

@VincentSC thank you for the feedback. I've added troubleshooting to readme based on your comments

tudstudent commented 1 year ago

@wasilukm and @VincentSC Just adding to this topic, recent experience. Even with latest firmware on the DTU it keeps locking up. Exact same message as above.

python 3.10 DTU Hardware rev - H09.06.1 DTU Software - V00.02.15

Even though the DTU is nice for info, the connection drops seem to be quite often. (Even without mod-bus)

Seems to be firmware, as the network of the DTU is still online -> e.g. ping is working 3 Solutions I see as potential solutions:

Do you have ideas (ever since)

VincentSC commented 1 year ago

Same experience right now: the DTU is super instable. Connections to the cloud drop a lot here - sometimes twice a day, sometimes it skips 1 or 2 days.

tudstudent commented 1 year ago

Oke, good to have the confirmation that I am not alone. Hope they will finally address these issues (but I am not hopeful looking at the messages online).

What I found as an alternative (and looks like they support the HMS): https://github.com/tbnobody/OpenDTU

Also supports MQTT I use HMS-2000-T

VincentSC commented 1 year ago

Mmm, is that effort different from this team? https://github.com/lumapu/ahoy and https://discord.com/channels/984173303147155506/993500210271629393

I decided to just buy the official DTU after I saw how slow they were progressing, and it was impossible for me to join in due to the lack of a structured approach. Other projects were very quiet, and assumed that would remain. I seemingly bet on the wrong team, as the Ahoy team still has "coming soon" :)

From what I see (and remember), building the hardware is relatively easy. So going to order parts this weekend if I did not do that already. Thanks for the tip!

Offtopic: if I'm reading TU and Oke correctly, I'm guessing you're also on Tweakers.net. Do you know of any electronics-makers-forum for such efforts like the Germans seem to have more often? https://www.circuitsonline.net/forum/search?query=hoymiles&mode=and&starter_user=&message_user=&topic_type=0&sort=0 shows less than Tweakers.

tudstudent commented 1 year ago

Looking at the github sites it are different projects (probably share some code).

For me the openDTU looks a bit more professional.

Looking for gear now so I can start with that. Mainly the antenna board sourcing seems to be challenging.

tudstudent commented 1 year ago

@VincentSC I did send a mail to Hoymiles and they answered today. I need to send my ID so a technician will contact me and will investigate the matter. In the end the opendtu solution is nice, but the original DTU is easier (will try this route first).

VincentSC commented 1 year ago

Did the same. Emailed them SW-version, HW-version and they asked for S/N. Now waiting for a magic solution.

tudstudent commented 1 year ago

So far no result. Almost have the feeling they have lockup in their TCP stack. Once a day it resets and comes back online. No change in using fixed IP.

Would be interesting if the RS485 port is working fine, but as always not a lot of time to test.

VincentSC commented 1 year ago

Same problem here. They even stopped responding.

I ended up connecting a zigbee-powerplug, that turns off for 5 seconds and back on, every hour during the day.

If this works well for a week, I will let the restart trigger by a lack of mqtt-messages. Far from ideal, but I see no other option.

tudstudent commented 1 year ago

For now disabled the modbus probing and it is more stable. However no data in HA... When more time I will most probably (if hoymiles will not come with a decent solution), switch to the opendtu.