Modbus client is not connected to the inverter

johanvh83 commented 1 year ago

Describe the issue

I checked the discussion but nothing could help me and it seems nobody is very responsive on the discussions. The integrations worked for months, almost 2 years, without problem. Since 2 days, I don't have any data anymore. Tried the almost I could but can't succeed. When I ping the inverter, I get a reply and on FusionSolar all data is available. I was a bit desperate and finally removed and re-installed the integration but after the popup with the IP address/port/ID it gives: 'Failed to connect' so I'm not able to check logs. The inverter gets Wifi access from my router. In the past I connected by the local IP 192.168.100.117 to the inverter. This option is not available from the drop-down 'how do you connect'. Is the setup changed?

The HA logs:

Logger: huawei_solar.huawei_solar Source: /usr/local/lib/python3.10/site-packages/huawei_solar/huawei_solar.py:293 First occurred: 7:57:50 PM (12 occurrences) Last logged: 8:11:00 PM

Modbus client is not connected to the inverter. NoneType: None

and

This error originated from a custom integration.

Logger: backoff Source: custom_components/huawei_solar/config_flow.py:114 Integration: Huawei Solar First occurred: 7:58:21 PM (2 occurrences) Last logged: 8:11:00 PM

Giving up _do_read(...) after 6 tries (huawei_solar.exceptions.ConnectionInterruptedException: Modbus client is not connected to the inverter.)

Bescribe your Huawei Solar Setup

Inverter Type: SUN2000-4.6KTL-L1 Inverter Firmware version: V200R001C00SPC130 SDongle present: no Power meter present: single phase Battery: LUNA2000 10kWh Battery Firmware version: V100R002C00SPC106

How do you connect to the inverter?

Via the SUN2000-<serial_no> WiFi

Upload your Diagnostics File

Drag & Drop your Diagnostics File here.

Upload your relevant debug logs

N/A

Please confirm the following:

[ ] The problem is still present in the latest release of this integration.
[ ] I did not find an existing issue describing this problem.
[ ] I did upload the diagnostics-file that I could retrieve from the 'Devices & Services Page'
[ ] I did upload the relevant debug logs (via 'Enable Debug Logging'-feature or by manually configuring HA logging)

tremebundo commented 1 year ago

I had the same problem a few days ago and it worked again reinstaling this pakage. Anyway, I connect to the installer access point which I gess is not your case.

johanvh83 commented 1 year ago

Hi @tremebundo, which package you installed? The package is intend for Home Assistant or for the inverter? Based on this discussion, https://github.com/wlcrs/huawei_solar/issues/332, Huawei managed the way the inverter works. I would believe I'm the only victim who used the WLAN communication for Home Assistant. Is the communication port an alternative? https://github.com/wlcrs/huawei_solar/wiki/Connecting-to-the-inverter Terminals 1 and 2 should give serial communication, in not changed by Huawei ;-)

tarmor1 commented 1 year ago

This is a common issue for me as well after HA updating or HA restarting. What helps are additional restarts or integration reloading: Integrations > Huawei integration > (click on 3 dots icon) > reload. But it takes many HA restarts or reloads once it hits the "sweet spot"... :)

tremebundo commented 1 year ago

Hi @johanvh83 , I mean this custom component. But what I found strange is that the sensor names changed. So, I needed to reconfigure my energy panel.

MariuszWoszczynski commented 1 year ago

I also have a problem with connecting to inverter last days

diegomontanaduarte commented 1 year ago

Same issue here!

johanvh83 commented 1 year ago

@tarmor1 & @tremebundo, how guys do you connect to the inverter, by Wifi? Do you have the Dongle? According my information Huawei changed 'something' remotely and disabled Modbus by Wifi. Seems there are 2 options now: Buy the Dongle to enable this feature again or use the serial output on the communication port. The last option required additional hardware. See https://github.com/wlcrs/huawei_solar/wiki/Connecting-to-the-inverter

diegomontanaduarte commented 1 year ago

@johanvh83 even with new inverter firmware is still be possible to connect by using a WiFi USB stick on your Home Assistant server. In my case when I restarted Home Assistant works fine for some minutes and then disconnected from the inverter

johanvh83 commented 1 year ago

So you believe the inverter still sends Modbus data over TCP (Wifi). Hopefully someone can clarify, maybe @wlcrs

tremebundo commented 1 year ago

Yes, I am connected right now to the wifi for the installer in the inverter. The one with fixed IP 192.168.1.200 and I get the data. I do not have any dongle or serial connection. And it has the latest firmware revision. @diegomontanaduarte , when this problem appeared, I had to uninstall this component, install it again and configure to get it work again. I had the same symptoms as you. But since then, the sensor names have changed.

wlcrs / huawei_solar