This site is now in read-only archive mode. Please move all discussion, and create a new account at the new Victron Community site.
Hi all
Is it possible to set the ESS mode (Optimised with BatteryLife / Keep Batteries Charged) via modbus or an mqtt message?
I'd like to be able to switch modes from my home automation system based on the status of our power grid - we're having rolling blackouts at the moment...
thanks!
Done a bit more poking around, and I think this might actually do what I want:
| com.victronenergy.hub4 | ESS control loop setpoint | 2700 | int16 | 1 | -32668 to 32668 | /AcPowerSetpoint |
If I set the setpoint to say 5KW, it will pull 5KW from the grid and direct that towards loads and any surplus towards the batteries, up to their charging current limit?
Then, set it back down to 50 when I don't need to force charge any more?
/edit This works! :D
Hi Simbad,
When you said "This works!", does it means that you got positive answers to your 2 questions ?
Hi Sinbad,
It seems like you can through TCP/ Modbus with the writable register 2900. Please check this Excel doc and check the Settings section (line #269)
Thanks
I had spotted this, and saw:
| 0=External control or BL disabled;1=Restarting;2=Self-consumption;3=Self-consumption;4=Self-consumption;5=Discharge disabled;6=Force charge;7=Sustain;9=Keep batteries charged;10=BL Disabled;11=BL Disabled (Low SoC) | Use value 0 (disable) and 1(enable) for writing only | |
That 2nd column confused me a bit - seems you can only turn BatteryLife on or off?
- change ESS mode to #2 by writing number 2 to address 2902 - put BatteryLife to charging mode by writing 6 to address 2900
and they seem to work, I can see it from console - ESS goes to charging mode, but only momentarily, pops right back to "Self-consumption".
Did you @Sinbad find any solution to this?
