Huawei inverter & modbus proxy.

[mptr8956]

Hi,
Trying to use the integrated modbus proxy together with my Huawei inverter SUN2000-10KTL-M1, Firmware: V100R001C00SPC168. Does not work as I need a delay of 2s after connect, otherwise it will fail to connect.

That is configurable with other standalone modbus proxy solutions. How could I solve it with evcc so I don't need a 3rd party connection?

[CiNcH83]

How do you connect? Via SDongle? What other Huawei devices and FW do you have? Quite uncommon that a connect delay >1s is needed.

[CiNcH83]

Pretty much the same setup here. Never had a problem with the 1s delay.

Hope there are no clients accessing the SDongle in parallel?

[mptr8956]

No, nothing else than the official fusion solar app & one modbus proxy. I will try it again tomorrow by disabling the external modbus proxy and post the error message.

[CiNcH83]

Also check whether it recovers. Usually only the frist request fails.

[EDIT]
OK. According to some references it seems that the connection indeed goes bad. So if this was a common problem there would be much more uproar. Something has to be different with your setup.

[CiNcH83]

Which FW version does the dongle have?
WiFi or LAN?
Any speciality in the network setup?

[CiNcH83]

Can we pursue this further?