Parallell connection problem

[lefjomp]

So I have 2 sh10rt and 2 sbr batteries, i just got the second setup and I run everyrhing in parallell ,it works Great with isolarcloud, but with mkaiser i have som problems, it seem like if i run a forced discharge both batteries discharges, but when i run a forced charge only one battery will charge, and its the battery that is connected to the inverter that i have configured in mkaiser, can I somehow get mkaiser to charge both batteries in parallell?

[Gnarfoz]

Such logic is actually part of the inverter's firmware. All this integration does is write to a few Modbus registers that translate to "set running mode to forced" + "set forced operation to charge" and "set forced operation power to XYZ watts". It's up to the inverter to handle the rest.
Depending on how it's implemented on the inverter side, it's possible that this integration would need to send such commands to both inverters, but then the question is why it's behaving differently for you when charging vs. when discharging.

Are you using the "second inverter" file that's available here?
That would allow controlling both inverters separately.

A good starting point for further analysis would be to check what happens when you do the same thing via iSolarCloud. Does the same "both discharge but only one charges" situation occur?

[Gnarfoz]

Yeah, put it in the same place as the other file.
Regarding the secrets, just compare the first couple of lines between the files and you'll see that all you need to do is duplicate the 3 lines in secrets.yaml, add _inv2 to the end of the variable names and adjust the values.

sungrow_modbus_host_ip: 192.168.178.xxx
sungrow_modbus_port: 502
sungrow_modbus_slave: 1
sungrow_modbus_host_ip_inv2: 192.168.178.yyy
sungrow_modbus_port_inv2: 502
sungrow_modbus_slave_inv2: 1

[lefjomp]

i think i got it partially working now , modbus shows alot more entities now, and i have made a new dashboard, i guss that i need one more for the other inverter, i have copied the daschboard.yaml text into the new dashboard, but i still get thedata from the old inverter, i guess that i have to point somehow to the new inverter, but how?

[Gnarfoz]

Yeah, you'd have to also replace all the sensor entity names in the dashboard with those from the second file. Looks like they are mostly the same name with a "_2" added at the end.

I guess it would be helpful to also auto-generate an additional dashboard file, like the second inverter file...

[lefjomp]

thanks, ive tried chatgpt, but it worked partially, do you have a suggestion of how to auto generate the daschboard file?

[lefjomp]

thanks for youre help, i have now got both inverters in to homeassitant, unfortunatly i cant get the parallel connection to work on the batteriets , the slave battery wont charge, i have tried everything.