Alarm Report

The device reports the following types of alarm packets.

Packet description:

Item Channel Type Description
Temperature Alarm 83 67

Byte 1-2: Ambient Temperature, INT16/100, Unit: °C
Byte 3:

  • 00=Configured high-temperature threshold alarm cleared
  • 01=Configured high-temperature threshold alarm triggered
  • 02=Configured low-temperature threshold alarm cleared
  • 03=Configured low-temperature threshold alarm triggered
  • 04 = Above 60°C alarm cleared
  • 05 = Above 60°C alarm triggered
  • 06 = Below -20°C alarm cleared
  • 07 = Below -20°C alarm triggered
Valve Descaling Alarm 84 92 Byte 1: Current Valve Opening, UINT8, Unit: %

Byte 2: Mode, 00 = Automatic, 01 = Manual

Byte 3: Result, 00 = Success, 01 = Failure

Byte 4: Reason

  • 00=Success
  • 01=Low battery
  • 02=Not in non-heating period
  • 03=Motor is running
  • 04=Calibration failed
  • 05=Motor stalled prematurely
  • 06=Device removed
  • 07=Motor operation failed
  • 08=Freeze protection triggered
  • 09=Temperature control enabled
Open Window Alarm 85 67 Byte 1-2: Ambient Temperature, INT16/100, Unit: °C

Byte 3: 00=Window close, 01=Window open

Freeze Protection Alarm 86 67 Byte 1-2: Ambient Temperature, INT16/100, Unit: °C

Byte 3: 00=Protection close, 01=Protection open

Byte 4: Current Valve Opening, UINT8, Unit: %
Temperature Source Alarm 87 00 00=Alarm release, 01=Alarm
Low Battery Alarm 88 00 00=Alarm release, 01=Alarm
Examples:
  1. Low battery alarm: Report once every 26 seconds when it enters low battery mode, for a total of three reports.
    880001
    Channel Type Value
    88 00 01=Low battery alarm
  2. Temperature alarm: Report once when the ambient temperature reaches the threshold.
    8367 9e0a01
    Channel Type Value
    83 67

    Ambient temperature: 9e 0a => 0a 9e=2718/100=27.18°C

    01=Above threshold

  3. Temperature source alarm: Report when no valid external temperature command is received within the timeout period and the internal NTC sensor is faulty.
    870001
    Channel Type Value
    87 00

    01=Temperature source alarm