Sungrow SH10.RT Modbus integration

Hi,

I created a Modbus based integration for a Sungrow SH10.RT inverter, which should be working for
SH3.6RS, SH4.6RS, SH5.0RS, SH5.0RT, SH6.0RS, SH8.0RT, SH6.0RT, SH10RT

and maybe SH5K-20 SH3K6 SH4K6 SH5K-V13 SH5K-30

See

Please let me know, if you have any questions and comments. If there is enough demand and with some help, I can also try to create a more user-friendly GUI-based integration (but I don’t know how to do that, yet!)

Best Regards,

1 Like

Hi @mkai, works fine on my Sungrow SH5K (it’s the original SH5k-v13 version) so can confirm working well.

@mkai it works vor SH5.0RT. But I found one issue. For the Energy dashboard are only the Total values offered, which is wrong, we need the active values there, can you please have a look into it?

Hi,

what do you mean with “active values”?

The build-in energy dashboard requires monotonic increasing “kWh values”. The reason behind this is that the measured energy values (kWh) are much more accurate than the current / momentum values (Watts) due to the scanning interval (5 seconds in my pre-defined settings)

I made some screenshots with my settings. It takes over an hour, until the dashboard displays reasonable date.

Can you check, if this works for you?

yes, this was an increadible, short and dark day (even for germany…):

Ach, deutsch ist gut :wink:
ich glaube ich habe die Energieflussgrafik falsch verstanden. Aufgrund der schlechten Produktionsraten in Deutschland ist halt im Moment nicht viel zu sehen…

Hi,

Looks very good, and will be implemented as soon as I get my solarcells installed.

Do you have any plans to include batterymanagement? Forced charging/discharging based on schedule?

Hi folks,

I’m looking at buying a Sungrow inverter, but am seeing reports online that they’re rolling out a firmware update that locks out Modbus access with encryption:

https://brettbeeson.com.au/hacking-the-sungrow-5-inverter/

Have any of you experienced this?