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Sungrow Modbus Register update #2631

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Merged
benderl merged 8 commits into from
Aug 6, 2025
Merged

Sungrow Modbus Register update #2631

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0a7c3e4
New Modbus Registers
seaspotter Aug 4, 2025
aa42570
Typo
seaspotter Aug 4, 2025
d594755
Clean-up code
seaspotter Aug 4, 2025
73754a2
flake8
seaspotter Aug 4, 2025
bdf334d
Add firmware check and restructure
seaspotter Aug 5, 2025
2cd7f45
Call check_firmware_register with initialize
seaspotter Aug 5, 2025
fd0a0fb
Update bat.py
benderl Aug 6, 2025
411d186
Update bat.py
benderl Aug 6, 2025
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64 changes: 41 additions & 23 deletions packages/modules/devices/sungrow/sungrow/bat.py
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Original file line number Diff line number Diff line change
Expand Up @@ -33,39 +33,57 @@ 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.last_mode = 'Undefined'
self.firmware_check = None
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def check_firmware_register(self, unit):
try:
self.__tcp_client.read_input_registers(5630, ModbusDataType.INT_16, unit=unit)
self.__tcp_client.read_input_registers(5213, ModbusDataType.INT_32,
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wordorder=Endian.Little, unit=unit)
self.firmware_check = True
log.debug("Wechselrichter Firmware ist größer gleich 95.09")
except Exception:
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self.firmware_check = False
log.debug("Wechselrichter Firmware ist kleiner als 95.09")

def update(self) -> None:
unit = self.device_config.configuration.modbus_id
soc = int(
self.__tcp_client.read_input_registers(13022, ModbusDataType.UINT_16, unit=unit) / 10)
# Es gibt nur einen DC Strom der Batterie, daher Aufteilen auf 3 Phasenströme
bat_current = self.__tcp_client.read_input_registers(13020, ModbusDataType.INT_16, unit=unit) * -0.1
currents = [bat_current / 3] * 3

if (
Firmware(self.device_config.configuration.firmware) == Firmware.v2
and self.device_config.configuration.version == Version.SH
):
bat_power = self.__tcp_client.read_input_registers(13021, ModbusDataType.INT_16, unit=unit) * -1
else:
if self.firmware_check is None:
self.check_firmware_register(unit)

soc = int(self.__tcp_client.read_input_registers(13022, ModbusDataType.UINT_16, unit=unit) / 10)
firmware = Firmware(self.device_config.configuration.firmware)
version = Version(self.device_config.configuration.version)

if firmware == Firmware.v2:
if self.firmware_check: # Firmware >= 95.09
bat_current = self.__tcp_client.read_input_registers(5630, ModbusDataType.INT_16, unit=unit) * -0.1
bat_power = self.__tcp_client.read_input_registers(5213, ModbusDataType.INT_32,
wordorder=Endian.Little, unit=unit) * -1
else: # Firmware between 95.03 and 95.09
bat_current = self.__tcp_client.read_input_registers(13020, ModbusDataType.INT_16, unit=unit) * -0.1
if version == Version.SH:
bat_power = self.__tcp_client.read_input_registers(13021, ModbusDataType.INT_16, unit=unit)
elif version == Version.SH_winet_dongle:
bat_power = self.__tcp_client.read_input_registers(13021, ModbusDataType.UINT_16, unit=unit)
total_power = self.__tcp_client.read_input_registers(13033, ModbusDataType.INT_32,
wordorder=Endian.Little, unit=unit)
pv_power = self.__tcp_client.read_input_registers(5016, ModbusDataType.UINT_32,
wordorder=Endian.Little, unit=unit)
if total_power > pv_power:
bat_power = bat_power * -1
else: # Firmware.v1 (Firmware < 95.03)
bat_current = self.__tcp_client.read_input_registers(13020, ModbusDataType.INT_16, unit=unit) * -0.1
bat_power = self.__tcp_client.read_input_registers(13021, ModbusDataType.UINT_16, unit=unit)

# Beim WiNet S-Dongle fehlt das Register für das Vorzeichen der Speicherleistung
if self.device_config.configuration.version == Version.SH_winet_dongle:
total_power = self.__tcp_client.read_input_registers(13033, ModbusDataType.INT_32,
wordorder=Endian.Little, unit=unit)
pv_power = self.__tcp_client.read_input_registers(5016, ModbusDataType.UINT_32,
wordorder=Endian.Little, unit=unit)

# Ist die Gesamtleistung des WR größer als die PV-Erzeugung wird der Speicher entladen
if total_power > pv_power:
bat_power = bat_power * -1
else:
if version in (Version.SH, Version.SH_winet_dongle):
resp = self.__tcp_client._delegate.read_input_registers(13000, 1, unit=unit)
binary = bin(resp.registers[0])[2:].zfill(8)
if binary[5] == "1":
bat_power = bat_power * -1

currents = [bat_current / 3] * 3

imported, exported = self.sim_counter.sim_count(bat_power)
bat_state = BatState(
power=bat_power,
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