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7.5. Holding registers
Holding Registers are read using function code 03 and written to using either function code 06 or 16. Function code 06
is used when writing to a single holding register, function code 16 is used for writing to multiple holding registers in the
same command.
Holding Registers (Analogue Outputs)
Register Name
Location
(decimal)
Length
Details
Drive Mode
0
1
0x01 = Heating
0x02 = Humidity reduction
0x03 = Cooling
0x07 = Ventilation, clean air operation
0x08 = Auto Operation
0x09 = i-see heating operation
*
0x0A = i-see humidity reduction
*
0x0B = i-see cooling
*
*
indicates a read only value, writing this
value will have no effect
Temperature Setpoint in °C
1
1
Holds a temperature value in °C multiplied
by 10.
E.g. a value of 200 = 20°C
Fan Speed
2
1
0x00 = Auto
0x02 = Quiet
0x03 = Weak
0x05 = Strong
0x06 = Very strong (SH i)
Air Direction
3
1
0x00 = Auto
0x01 = Position 1
0x02 = Position 2
0x03 = Position 3
0x04 = Position 4
0x05 = Position 5
0x07 = Swing
Summary of Contents for Procon A1M
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