I have a basic modbus setup but it is to complex to setup.
You need admin access on the inverter, it only works on some models and it only works via an ethernet cable.
I’m not going to release it or I will be only doing support to end users.
All I need is to be able to change “Battery Backup power SOC” parameter.
Maybe is there a way to do it with a script? Do you have any documentation on how to do that?
I have admin access. Also with MODBUS you can just read the info if you don’t have elevated priviledges.
It is possible to change server addresses as after latest update they changed and also in the fusion web now there are more options available to normal user?
Also, I have modbus, admin access and dongle connected by ETH, can you point on the modbus setup to try it?
You can access the settings in the Fusionsolar app. At the bottom, press “devices” and then “Connected devices”. Here you press on Battery and then on the 4 dots in the upper right corner and select “Parameter settings”.
Here you can see and change 4 different settings. At the top is how much the battery can generally be charged to, and it is fine at 100%. Below is the minimum limit for how far the battery must discharge - we recommend that it is set at 5% to ensure that you do not stress the battery. At the bottom is AC charge cutoff SOC – this means how much the battery must be charged from the mains, i.e. when you use TOU. It is now at 50% and you can increase it as much as you like. On cloudy days it might be fine to charge it all the way to 100% at night, but on a nice cloudless winter day there will probably be a little excess current and here you can perhaps set it to 60 or 70% so there is some room for surplus current.
I know I can change it from Fusionsolar. Maybe I didn’t express it correctly. Whant I need is to automate that parameter change based on some other devices.
My electric installation doesn’t allow me to split circuits and I don’t want to stress the battery at night if my wife starts the washing machine or the oven.
Me to: I would also donate for someone who could write an app for Modbus integration of huawei PV.
Who else would do so? Is there no one willing to do it for money?
Yes, it’s a shame that there has been no answer for so long when and if an update is planned.
Maybe someone else can do the work. At the same time you can then change server access.