H3-15-Smart Modbus Export Control

[joshdhaf]

Hi All,

I am the new owner of a H3-15-Smart inverter and Battery.
I am currently running a home assistant integration by "nathanmarlor" but there is not control for the export limit.
To change the export control I have to set the setting locally at the inverter control panel.
Is anyone able to educate me to what modbus address I might be able to control the export limit on?
I am currently getting charged to export to the grid during the day but need to change the export back to a higher number during the night.

Thanks All

[Dave Foster]

You might have to do some test reads to see what the H3 Smart is using, the original specification used 41012, whereas the latest spec uses 46616

[joshdhaf]

Thanks for pointing me in the right direction Dave
I'll try modbus poll today and report back

[joshdhaf]

Unfortunately no luck on 41012 & 46616, I get illegal Data Address. I did try and scan a bunch of other addresses but dident see anything that resembled the export limit setting.

[Dave Foster]

Unfortunately no luck on 41012 & 46616, I get illegal Data Address. I did try and scan a bunch of other addresses but dident see anything that resembled the export limit setting.

Make sure you try them as both input and holding addresses

[joshdhaf]

Hhhhmmmmm, thanks Dave, I will have another go tomorrow