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majstermod asked

Programmable relay - relative thresholds

Hi I use battery life functionality and it works really well.
I have heater connected to AC-2 and I want to turn it on only when excess energy available.
Now programmable relay assistant allows to on/off relay based on absolute values.
For example it can close relay if SOC > 40%.
However after cloudy week my SOC active limit can be 60%.
In this situation relay will be still closed, while system will get energy from grid, what I wanted to avoid.
In order to respect battery life settings, assistant should allow to define relative thresholds instead of fixed values.

Example rules based on SOC:
Close relay: SOC > active SOC limit + 20%
Open relay: SOC < active SOC limit + 10%

How to do it?


So in general I would propose to use any system parameter
(of course if it has the same units like percentage or wats) in formula with additional offset.
Logical expression would be also acceptable.

Assistants
2 |3000

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