Module B: Indoor Unit Parameter Block

Base: D24000

Address rule: Channel x (1-4), Unit U (1-160) -> D(24000 + (X-1) * 2560 + (U-1) * 16 + field_offset)

Offset Register Address Byte/Bit Field ID Function Description Function Code R/W
+00 D24000 (Ch1 U1) Whole Register D24000 Indoor Unit U - Outdoor Unit Address (0-254, >254 invalid) 0x03 R
+01 D24001 (Ch1 U1) Whole Register D24001 Indoor Unit U - Indoor Unit Address (0-254, >254 invalid) 0x03 R
+02 D24002 (Ch1 U1) Whole Register D24002 Indoor Unit U - Lock Bit=1 locked, 0 unlocked 0x03/0x06/0x10 R/W
+03 D24003 (Ch1 U1) Whole Register D24003 Indoor Unit U - On/Off (0x00 Off, 0x01 On) 0x03/0x06/0x10 R/W
+04 D24004 (Ch1 U1) Whole Register D24004 Indoor Unit U - Set Temperature (16-31°C) 0x03/0x06/0x10 R/W
+05 D24005 (Ch1 U1) Whole Register D24005 Indoor Unit U - Mode
  • 0x00 Auto
  • 0x01 Cool
  • 0x02 Dry
  • 0x04 Fan
  • 0x08 Heat
 0x03/0x06/0x10 R/W
+06 D24006 (Ch1 U1) Whole Register D24006 Indoor Unit U - Fan Speed
  • 0x00 Auto
  • 0x01 High
  • 0x02 Medium
  • 0x03 Medium-High
  • 0x04 Low
  • 0x05 Medium-Low
  • 0x06 Breeze
  • 0x07 Turbo
 0x03/0x06/0x10 R/W
+07 D24007 (Ch1 U1) Whole Register D24007 Indoor Unit U - Air Direction (Reserved) 0x03/0x06/0x10 R/W
+08 D24008 (Ch1 U1) Whole Register D24008 Indoor Unit U - Temp Lock - Lower Limit (0=unset, 16-31°C) 0x03/0x06/0x10 R/W
+09 D24009 (Ch1 U1) Whole Register D24009 Indoor Unit U - Temp Lock - Upper Limit (0=unset, 16-31°C) 0x03/0x06/0x10 R/W
+10 D24010 (Ch1 U1) Whole Register D24010 Indoor Unit U - Return Air Temperature 0x03 R
+11 D24011 (Ch1 U1) Whole Register D24011 Indoor Unit U - Humidity (Reserved) 0x03 R
+12 D24012 (Ch1 U1) Whole Register D24012 Indoor Unit U - Indoor Unit Capacity (self-calculate if unavailable) 0x03 R
+13 D24013 (Ch1 U1) Whole Register D24013 Indoor Unit U - Daily Cumulative Run Time (0-1440 min) 0x03 R
+14 D24014 (Ch1 U1) B15-B8 (High) / B7-B0 (Low) D24014_H / D24014_L H: Indoor Unit U - Fault Code Character 1 (ASCII)

L: Indoor Unit U - Fault Code Character 2 (ASCII)

 0x03 R
+15 D24015 (Ch1 U1) B15-B8 (High) / B7-B0 (Low) D24015_H / D24015_L H: Indoor Unit U - Fault Code Character 3 (ASCII)

L: Indoor Unit U - Fault Code Character 4 (ASCII)

 0x03 R
Example: Turn on indoor unit 1 of channel 1 and set the temperature to 25°C
Direction Code
Request 01 10 5D C3 00 02 04 00 01 00 19 8B 73
Response 01 10 5D C3 00 02 A2 58