Expose export limit (register 46616) on H3-smart-10

[Planckus]

I am on a plan with dynamic electricity pricing, and occasionally this drops so it becomes negative, which essentially means that I will be paying to feed to the grid. Based on price, I would love to be able to set the export limit to "zero" when prices are negative. My problem is that the export register is not exposed in the Foxess Modbus integration. Feature request: Can you expose export limit in Home Assistant with the Foxess modbus integration?

[GurliGebis]

If I can get my PC to talk to my inverter using modbus, I plan on creating a pull request that enables this :)

#1096

[outatime88]

This would be a good one to have. I would like to set the export limit for example to 5KW, then set my discharge limit on my inverter to its capacity (15WK) then discharge for 3 hours, thus exporting up to 15KW but also covering my self consumption needs.

Sounds a little crazy but I'm on a plan where I get an increased tarriff for 3 hours and also an additional incentive if I don't use grid electricity during that time.

[GurliGebis]

I have made the changes and created a pull request - just need to have it looked at and merged