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Mosquito Trap 3 Modbus Register 12561: Name device Temperature

Technical documentation for Modbus register 12561 on Mosquito Trap 3. Data type: S WORD. Includes Python and YAML configuration examples.

January 16, 2026 3 read

Technical Definition

The register name device Temperature at address 12561 is used to monitor name device Temperature on the Mosquito Trap 3.

  • Protocol: Modbus RTU
  • Data Type: S WORD
  • Unit: °C
  • Access: Read Only

How to Read (Python pymodbus)

Use this code snippet to read this specific value via RS485:

from pymodbus.client.sync import ModbusSerialClient

client = ModbusSerialClient(method='rtu', port='/dev/ttyUSB0', baudrate=9600)
client.connect()

# Read name_device_temperature (Address: 12561)
# Note: Check if your device uses 0-based or 1-based addressing
result = client.read_input_registers(address=12561, count=2, unit=1)

if not result.isError():
    print(f"Raw Value: {result.registers}")
else:
    print("Error reading register")

client.close()

Integration (Home Assistant)

Paste this into your configuration.yaml:

- platform: modbus_controller
  name: "name_device_temperature"
  address: 12561
  value_type: S_WORD
  unit_of_measurement: "°C"

Connection Diagram

Here is the standard RS485 wiring for this configuration:

graph TD
    PLC[Host Controller / Home Assistant]
    Device[Mosquito Trap 3]

    PLC -- "A+ (D+)" --> Device
    PLC -- "B- (D-)" --> Device
    PLC -- GND --> Device


💡 Engineer's Insight

Analysis: Internal Temperature of the device (°C or °F). Critical for performance and safety.

Troubleshooting: Could signal overheating due to overload, poor ventilation, or sensor failure.