Commands for Temperature Control Settings

The device supports multiple commands for temperature control settings.

Command description:
Item Channel Type Byte Description
Target Temperature Regulation Range f9 35 4

Byte 1-2: Min. target temperature, INT16/100, Unit: °C, Range: 5-35

Byte 3-4: Max. target temperature,  INT16/100, Unit: °C, Range: 5-35
Open Window Valve Status f9 37 1 00 = Remains unchanged, 01 = Close Valve
Platform Algorithm Timeout Time f9 41 2 UINT16, Unit: min, Range: 1-1440, Default: 30
Platform Algorithm Timeout Control Strategy f9 42 1
  • 00 = Continue control with Current State
  • 01 = Switch to Built-in PID Algorithm
  • 02 = Close the valve
Target Temperature for Each Scale Level f9 43 3 Byte 1: Scale Level, UINT8, Range: 0-5

Byte 2-3: UINT16/100, Unit: °C, Range: 5-35
Target Scale Level f9 44 1 UINT8, Range: 0-5, Default: 3
Target Scale Level Display Time f9 45 1 UINT8, Unit: s, Range: 1-10, Default: 2
Target Temperature Resolution f9 46 1 00=0.5, 01=1
Target Temperature Display Time f9 47 1 UINT8, Unit: s, Range: 1-10, Default: 2
Open Window Stop Temperature Control Time f9 49 2 UINT16, Unit: min, Range: 1-1440, Default: 30
Valve Opening Display f9 4d 1 00=Disable, 01=Enable

Available only when Temperature Control Mode is set to Valve Opening Control Mode.
Open Window ff 57 1 00 = Close the window, 01 = Open the window
Temperature Control Algorithm ff ac 1 00 = Built-in PID, 01 = Platform Algorithm
Temperature Control Mode ff ae 1
  • 00 = 0~5 Scale Mode
  • 01 = Integrated Control Mode
  • 02 = Valve Opening Control Mode
Open Window Detection ff af 5 Byte 1: 00=Disable, 01=Enable

Byte 2-3: Cooling rate, INT16/100, Unit: °C/min, Range: 2-10, Default: 3
Byte 4-5: Stop temperature control time, UINT16, Unit: min, Range: 1-1440，Default: 30
Freeze Protection ff b0 3 Byte 1: 00=Disable, 01=Enable

Byte 2-3: Freeze protection temperature, INT16/100, Unit: °C, Range: 1-5
Target Temperature ff b1 2 UINT16/100, Unit: °C, Range: 5-35

Available only when Temperature Control Mode is set to Integrated Control Mode.
Temperature Control ff b3 1 00=Disable, 01=Enable
Valve Opening ff b4 1 Valve opening percent, UINT8, Unit: %, Range: 0~100,Default: 0
Example:
  1. Select temperature control mode as Integrated Control Mode.
    ffae01
    Channel Type Value
    ff ae 01 = Integrated Control Mode
  2. Enable the open window detection and configure the related parameters.
    ffaf 012c011e00
    Channel Type Value
    ff af 01 = Enable

    Cooling rate: 2c 01 => 01 2c = 300/100 = 3°C/min

    Stop temperature control time: 1e00 => 001e = 30