A Multiplus2 ESS with Pylontech LiFepo Batterie is mounted inside a building without public grid. The MP2 input is wired to the neighbours building where public grid is available. This allows to to charge battery from grid as well as contributing to the neighbours power consumptions and feed excess power back to the grid.
At sunrise, the MPPT output current reduces the battery discharge and contributes to the own AC loads. If PV current is sufficient, Multiplus stops discharging mode and switches to external control. This external control is obviosly received by the Pylontech CAN command what calls for charging.
As the neighbours building has typical high demand of power in the morning, I would prefere to delay the battery charge current until a fix time in afternoon (or a time depending from a weather forecast). This should allow the ESS to feed into the grid early in the morning contributing to a reduction of the neighbours high grid load in this hours.
I tried the ESS Setup-Scheduled_charge_levels. If time is active, it works always using 100% capacity of multiplus chargers from grid independend from available MPPT DC power.
How is it possible to limit scheduled charge to available excess DC power and disable any charging before the scheduled hours elapsed ?`
Will a RS485 grid meter signal from the neighbour help in this case ?
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