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SMA Sunny Island Bat control #3336

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Merged
LKuemmel merged 4 commits into from
May 5, 2026
Merged

SMA Sunny Island Bat control #3336

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f7cbab5
Add bat control for Sunny Island
seaspotter Apr 24, 2026
962f3af
Update bat.py
seaspotter Apr 24, 2026
f3843eb
Update bat.py
seaspotter Apr 24, 2026
bc918b2
Merge branch 'openWB:master' into feature_sma_bat
seaspotter Apr 28, 2026
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33 changes: 28 additions & 5 deletions packages/modules/devices/sma/sma_sunny_island/bat.py
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Original file line number Diff line number Diff line change
@@ -1,5 +1,6 @@
#!/usr/bin/env python3
from typing import TypedDict, Any
from typing import TypedDict, Any, Optional
import logging

from modules.common import modbus
from modules.common.abstract_device import AbstractBat
Expand All @@ -12,6 +13,8 @@
from modules.common.utils.peak_filter import PeakFilter
from modules.common.component_type import ComponentType

log = logging.getLogger(__name__)


class KwargsDict(TypedDict):
client: modbus.ModbusTcpClient_
Expand All @@ -27,8 +30,9 @@ def initialize(self) -> None:
self.store = get_bat_value_store(self.component_config.id)
self.fault_state = FaultState(ComponentInfo.from_component_config(self.component_config))
self.peak_filter = PeakFilter(ComponentType.BAT, self.component_config.id, self.fault_state)
self.last_mode = 'Undefined'

def read(self) -> BatState:
def update(self) -> None:
unit = self.component_config.configuration.modbus_id

with self.__tcp_client:
Expand All @@ -38,15 +42,34 @@ def read(self) -> BatState:
imported, exported = self.__tcp_client.read_holding_registers(30595, [ModbusDataType.INT_32]*2, unit=unit)

imported, exported = self.peak_filter.check_values(power, imported, exported)
return BatState(
bat_state = BatState(
power=power,
soc=soc,
imported=imported,
exported=exported
)
self.store.set(bat_state)

def update(self) -> None:
self.store.set(self.read())
def set_power_limit(self, power_limit: Optional[int]) -> None:
unit = self.component_config.configuration.modbus_id

if power_limit is None:
if self.last_mode is not None:
# Kein Powerlimit gefordert, externe Steuerung war aktiv, externe Steuerung deaktivieren
self.__tcp_client.write_register(40151, 803, data_type=ModbusDataType.UINT_32, unit=unit)
self.__tcp_client.write_register(40149, 0, data_type=ModbusDataType.INT_32, unit=unit)
log.debug("Keine Batteriesteuerung gefordert, deaktiviere externe Steuerung.")
self.last_mode = None
else:
# Powerlimit gefordert, externe Steuerung aktivieren, Limit setzen
self.__tcp_client.write_register(40151, 802, data_type=ModbusDataType.UINT_32, unit=unit)
power_value = int(power_limit) * -1
self.__tcp_client.write_register(40149, power_value, data_type=ModbusDataType.INT_32, unit=unit)
log.debug("Aktive Batteriesteuerung vorhanden. Setze externe Steuerung. Leistung: {power_value}")
self.last_mode = 'limited'

def power_limit_controllable(self) -> bool:
return True


component_descriptor = ComponentDescriptor(configuration_factory=SmaSunnyIslandBatSetup)
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