Add support for OpenDTU Modbus PR #28
Description
Description
Czy jest możliwość dodania wsparcia dla OpenDTU Modbus PR?
tbnobody/OpenDTU#1893
We have tried to maintain as much consistency as possible with the original DTU.
What I Did
Currently I have read from OpenDTU as a workaround by adding a DTU type variable. My simple code below:
if self._dtu_type == 1:
start_address = i * 20 + 0x1000
result = self._read_registers(client, start_address, 20, self._unit_id)
data_to_unpack = result.encode()[1:41]
elif self._dtu_type == 2:
start_address = i * 40 + 0x1000
result = self._read_registers(client, start_address, 40, self._unit_id)
data_to_unpack = result.encode()[1:81]
else:
start_address = i * 40 + 0x1000
result = self._read_registers(client, start_address, 20, self._unit_id)
data_to_unpack = result.encode()[1:41]
if self._dtu_type == 2:
result = self._read_registers(client, 0x2000, 3, self._unit_id)
self._dtu_serial_number = _serial_number_t2.unpack(result.encode()[1::])
else:
result = self._read_registers(client, 0x2000, 3, self._unit_id)
self._dtu_serial_number = _serial_number_t.unpack(result.encode()[1::])
_udec32p1 = DecimalX(name='udec32p1', nbytes=4, precision=1, byteorder='big', signed=False)
_sdec32p1 = DecimalX(name='sdec32p1', nbytes=4, precision=1, byteorder='big', signed=True)
_udec32p2 = DecimalX(name='udec32p2', nbytes=4, precision=2, byteorder='big', signed=False)
_serial_number_t = _SerialNumberX(name='serial_number_t', nbytes=6)
_serial_number_t2 = _SerialNumberX(name='serial_number_t', nbytes=3)
_reserved = ArrayX(name='reserved', fmt=uint8)
_reserved2 = ArrayX(name='reserved', fmt=uint16)
class _PVCurrentType(Enum):
"""PV current datatype depending on inverter type."""
MI = _udec16p1
"""MI series."""
HM = _udec16p2
"""HM series."""
MIDTU = _udec32p1
"""MI series."""
HMDTU = _udec32p2
"""HM series."""
class InverterDataOpenDTU(Structure): # type: ignore[misc]
"""Inverter data structure."""
data_type: int = member(fmt=uint16)
serial_number: str = member(fmt=_serial_number_t)
serial_number2: str = member(fmt=_serial_number_t)
"""Inverter serial number."""
port_number: int = member(fmt=uint16)
"""Port number."""
pv_voltage: Decimal = member(fmt=_udec32p1)
"""PV voltage [V]."""
pv_current: Decimal = member(fmt=_pv_current_type, fmt_arg=serial_number) # type: ignore[arg-type]
"""PV current [A]."""
grid_voltage: Decimal = member(fmt=_udec32p1)
"""Grid voltage [V]."""
grid_frequency: Decimal = member(fmt=_udec32p2)
"""Grid frequency [Hz]."""
pv_power: Decimal = member(fmt=_udec32p1)
"""PV power [W]."""
today_production: int = member(fmt=uint32)
"""Today production [Wh]."""
total_production: int = member(fmt=uint32)
total_production2: int = member(fmt=uint32)
"""Total production [Wh]."""
temperature: Decimal = member(fmt=_sdec32p1)
"""Inverter temperature [°C]."""
operating_status: int = member(fmt=uint32)
"""Operating status."""
alarm_code: int = member(fmt=uint32)
"""Alarm code."""
alarm_count: int = member(fmt=uint32)
"""Alarm count."""
link_status: int = member(fmt=uint16)
"""Link status."""
reserved: list[int] = member(fmt=_reserved)
@dataclass