Working version
This commit is contained in:
Constantin Pascal
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"""Sensor platform for Modbus RTU Monitor."""
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from __future__ import annotations
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from homeassistant.components.sensor import (
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SensorDeviceClass,
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SensorEntity,
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SensorStateClass,
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)
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from homeassistant.const import PERCENTAGE
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from homeassistant.core import HomeAssistant, callback
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from homeassistant.helpers.device_registry import DeviceInfo
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from homeassistant.helpers.entity_platform import AddEntitiesCallback
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from homeassistant.helpers.update_coordinator import CoordinatorEntity
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from . import ModbusRTUMonitorConfigEntry
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from .const import (
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DOMAIN,
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MANUFACTURER,
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MODEL,
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REGISTER_MONITOR_COUNT,
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REGISTER_MONITOR_COUNT_2,
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REGISTER_MONITOR_COUNT_3,
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REGISTER_START_ADDRESS,
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REGISTER_START_ADDRESS_2,
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REGISTER_START_ADDRESS_3,
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)
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from .coordinator import ModbusRTUMonitorCoordinator
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async def async_setup_entry(
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hass: HomeAssistant,
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entry: ModbusRTUMonitorConfigEntry,
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async_add_entities: AddEntitiesCallback,
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) -> None:
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"""Set up sensor entities from a config entry."""
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coordinator = entry.runtime_data
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# Track which slaves have sensor entities
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added_slaves: set[int] = set()
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added_slaves_registers: set[int] = set()
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added_slaves_registers2: set[int] = set()
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added_slaves_registers3: set[int] = set()
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@callback
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def _async_add_sensor_entities() -> None:
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"""Add sensor entities for newly discovered slaves."""
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if coordinator.data is None:
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return
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entities = []
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# Add humidity sensors for new slaves
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current_slaves = set(coordinator.data.keys())
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new_slaves = current_slaves - added_slaves
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if new_slaves:
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for slave_id in new_slaves:
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entities.append(
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ModbusRTUMonitorHumiditySensor(coordinator, slave_id)
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)
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added_slaves.update(new_slaves)
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# Add register sensors for slaves with register data (range 1: 165-184)
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current_slaves_registers = {
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slave_id
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for slave_id, slave_data in coordinator.data.items()
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if slave_data.registers is not None
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and any(
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REGISTER_START_ADDRESS <= addr < REGISTER_START_ADDRESS + REGISTER_MONITOR_COUNT
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for addr in slave_data.registers
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)
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}
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new_slaves_registers = current_slaves_registers - added_slaves_registers
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if new_slaves_registers:
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for slave_id in new_slaves_registers:
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# Create sensors for each monitored register (range 1)
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for reg_offset in range(REGISTER_MONITOR_COUNT):
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register_addr = REGISTER_START_ADDRESS + reg_offset
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entities.append(
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ModbusRTUMonitorRegisterSensor(
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coordinator, slave_id, register_addr
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)
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)
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added_slaves_registers.update(new_slaves_registers)
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# Add register sensors for slaves with register data (range 2: 210-217)
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current_slaves_registers2 = {
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slave_id
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for slave_id, slave_data in coordinator.data.items()
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if slave_data.registers is not None
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and any(
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REGISTER_START_ADDRESS_2 <= addr < REGISTER_START_ADDRESS_2 + REGISTER_MONITOR_COUNT_2
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for addr in slave_data.registers
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)
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}
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new_slaves_registers2 = current_slaves_registers2 - added_slaves_registers2
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if new_slaves_registers2:
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for slave_id in new_slaves_registers2:
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# Create sensors for each monitored register (range 2)
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for reg_offset in range(REGISTER_MONITOR_COUNT_2):
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register_addr = REGISTER_START_ADDRESS_2 + reg_offset
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entities.append(
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ModbusRTUMonitorRegisterSensor(
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coordinator, slave_id, register_addr
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)
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)
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added_slaves_registers2.update(new_slaves_registers2)
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# Add register sensors for slaves with register data (range 3: 140-147)
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current_slaves_registers3 = {
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slave_id
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for slave_id, slave_data in coordinator.data.items()
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if slave_data.registers is not None
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and any(
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REGISTER_START_ADDRESS_3 <= addr < REGISTER_START_ADDRESS_3 + REGISTER_MONITOR_COUNT_3
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for addr in slave_data.registers
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)
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}
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new_slaves_registers3 = current_slaves_registers3 - added_slaves_registers3
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if new_slaves_registers3:
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for slave_id in new_slaves_registers3:
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# Create sensors for each monitored register (range 3)
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for reg_offset in range(REGISTER_MONITOR_COUNT_3):
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register_addr = REGISTER_START_ADDRESS_3 + reg_offset
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entities.append(
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ModbusRTUMonitorRegisterSensor(
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coordinator, slave_id, register_addr
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)
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)
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added_slaves_registers3.update(new_slaves_registers3)
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if entities:
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async_add_entities(entities)
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# Subscribe to coordinator updates
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entry.async_on_unload(
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coordinator.async_add_listener(_async_add_sensor_entities)
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)
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# Add entities for already discovered slaves
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_async_add_sensor_entities()
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class ModbusRTUMonitorHumiditySensor(
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CoordinatorEntity[ModbusRTUMonitorCoordinator],
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SensorEntity,
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):
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"""Humidity sensor entity for Modbus RTU monitor."""
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_attr_has_entity_name = True
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_attr_translation_key = "humidity"
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_attr_device_class = SensorDeviceClass.HUMIDITY
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_attr_native_unit_of_measurement = PERCENTAGE
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_attr_state_class = SensorStateClass.MEASUREMENT
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def __init__(
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self,
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coordinator: ModbusRTUMonitorCoordinator,
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slave_id: int,
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) -> None:
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"""Initialize humidity sensor."""
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super().__init__(coordinator)
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self._slave_id = slave_id
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self._attr_unique_id = (
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f"{coordinator.config_entry.entry_id}_{slave_id}_humidity"
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)
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# Same device as climate entity
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self._attr_device_info = DeviceInfo(
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identifiers={(DOMAIN, f"{coordinator.config_entry.entry_id}_{slave_id}")},
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name=f"Modbus Slave {slave_id}",
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manufacturer=MANUFACTURER,
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model=MODEL,
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)
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@property
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def available(self) -> bool:
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"""Return if entity is available."""
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if self._slave_id not in self.coordinator.data:
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return False
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return self.coordinator.data[self._slave_id].available
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@property
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def native_value(self) -> float | None:
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"""Return humidity value from passive monitoring."""
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if self._slave_id not in self.coordinator.data:
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return None
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return self.coordinator.data[self._slave_id].humidity
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class ModbusRTUMonitorRegisterSensor(
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CoordinatorEntity[ModbusRTUMonitorCoordinator],
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SensorEntity,
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):
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"""Register sensor entity for Modbus RTU monitor."""
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_attr_has_entity_name = True
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_attr_state_class = SensorStateClass.MEASUREMENT
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def __init__(
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self,
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coordinator: ModbusRTUMonitorCoordinator,
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slave_id: int,
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register_addr: int,
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) -> None:
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"""Initialize register sensor."""
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super().__init__(coordinator)
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self._slave_id = slave_id
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self._register_addr = register_addr
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self._attr_unique_id = (
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f"{coordinator.config_entry.entry_id}_{slave_id}_register{register_addr}"
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)
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self._attr_name = f"Register{register_addr}"
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# Same device as climate and humidity entities
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self._attr_device_info = DeviceInfo(
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identifiers={(DOMAIN, f"{coordinator.config_entry.entry_id}_{slave_id}")},
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name=f"Modbus Slave {slave_id}",
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manufacturer=MANUFACTURER,
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model=MODEL,
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)
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@property
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def available(self) -> bool:
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"""Return if entity is available."""
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if self._slave_id not in self.coordinator.data:
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return False
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slave_data = self.coordinator.data[self._slave_id]
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if not slave_data.available or slave_data.registers is None:
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return False
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return self._register_addr in slave_data.registers
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@property
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def native_value(self) -> int | None:
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"""Return register value (signed int16)."""
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if self._slave_id not in self.coordinator.data:
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return None
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slave_data = self.coordinator.data[self._slave_id]
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if slave_data.registers is None:
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return None
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return slave_data.registers.get(self._register_addr)
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@property
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def extra_state_attributes(self) -> dict[str, int]:
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"""Return additional state attributes."""
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return {"register_address": self._register_addr}
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