Skip to content

Sungrow Modbus Register update #2631

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

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

Sungrow Modbus Register update #2631

Changes from all commits
Commits
Show all changes
8 commits
Select commit Hold shift + click to select a range
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
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
62 changes: 39 additions & 23 deletions packages/modules/devices/sungrow/sungrow/bat.py
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -33,39 +33,55 @@ 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 = self.check_firmware_register()

def check_firmware_register(self) -> bool:
if Firmware(self.device_config.configuration.firmware) == Firmware.v1:
return False
unit = self.device_config.configuration.modbus_id
try:
self.__tcp_client.read_input_registers(5213, ModbusDataType.INT_32,
wordorder=Endian.Little, unit=unit)
log.debug("Wechselrichter Firmware ist größer gleich 95.09")
return True
except Exception:
log.debug("Wechselrichter Firmware ist kleiner als 95.09")
return False

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

if Firmware(self.device_config.configuration.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,
Expand Down