SpacePak Solstice ILAHP48, Installation And Operation Manual, Page: 42 / 56

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ILAHP Inverter Extreme Air-to-Water Heat Pump
1. Transmission Format
Baud Rate 9600bps
Start bit 1
Byte width 8
Parity N
Stop bits 1
Slave address H15
2. Packet Format
Address Function Data CRC checksum
16bits
16bits
03:Function of reading multi registers
16:Function of presenting multi registers
06: Fuction of presenting single
N*16bits 16bits
Address Function Number Content mode Default Description Remark
1011 03/16 ON/OFF read/write 0-OFF/1-ON DIGI1
1012 03/16 Mode read/write
H05=1:0-Hot water/1-Heating/2-Cooling/3-Hot
water+heating/4-Hot water+Cooling
H05=0:0-Hot water/1-Heating/3-Hot water+heating
DIGI1
1013 03/16 Reserved read/write
1014 03/16 Reserved read/write
1015 03/16 Reserved read/write
1016 03/16 Manual control read/write
bit0:Manual defrost(0-off 1-on)
bit1:Mute flag bit (0-off 1-on)
bit2:A key manual heating (0-off 1-on)
DIGI1
1017 03/16 Reserved read/write
1018 03/16 H01
if with disable automatic restart (0-no/1-
yes)
read/write 1 0-no/1-yes DIGI1
1019 03/16 Reserved read/write
1020 03/16 Reserved read/write
1021 03/16 H05 Cooling Mode read/write 1 0-No/1-Yes DIGI1
1022 03/16 Reserved read/write
1023 03/16 H07 Controler choice read/write 0 0-display control 1-remote control DIGI1
1024 03/16 H10 Unit address read/write 1 1~32 DIGI1
1025 03/16 Reserved read/write
1026 03/16 Reserved read/write
1027 03/16 H27 EVI enabled read/write 3
0-no EVI
1-EVI on cooling
2-EVI on heating
3-EVI both heating and cooling
DIGI1
1028 03/16 H28 Hot water mode enable read/write 1 0-no/1-yes DIGI1
1029 03/16 H21 Temperature unit read/write 0 0-°C/1-F DIGI1
1030 03/16 H22 Silence mode read/write 1 0-no/1-yes DIGI1
1031 03/16 Reserved read/write
Data Types Description
TEMP
Important Note: All temperatures values in the MODBUS registers are stored as tenths of a degree Celsius, regardless of whether the unit is set to
display Fahrenheit or Celsius.
Therefore, a temperature value such as register 1192 = Heating Target Temperature may be stored as 500. Divide this value by 10 and you get
50.0°C. To determine the equivalent value in Fahrenheit, multiply this value by 9/5, to get 90, then add 32. The Fahrenheit temperature is 122°F.
Therefore, a temperature value such as register 1192 = Heating Target Temperature may be stored as 500. Divide this value by 10 and you get
50.0°C. To determine the equivalent value in Fahrenheit, multiply this value by 9/5, to get 90, then add 32. The Fahrenheit temperature is 122°F.
When a value represents a difference between two temperatures, such as register 1194, Start temperature differential, the conversion from Celsius to
Fahrenheit is simply, multiply by 9/5, and from Fahrenheit to Celsius is multiply by 5/9.
For example, if the default value is 36, divide this by 10 and it represents 3.6 deg Celsius difference, multiply by 9/5 to get 6.5 deg Fahrenheit
difference. Conversely, if you want to set this value to 5 deg Fahrenheit differential, multiply by 5/9 to get 2.8 deg Celsius differential. Divide this by
10, and set the register value to 28.
DIGI1 No symble byte,unit :1,When show 123,the data transmission is 123;
DIGI2 No symble byte,unit :10,When show 1230,the data transmission is 123;
DIGI3 No symble byte,unit :100,When show 12300,the data transmission is 123;
DIGI4 No symble byte,unit :5,When show 10,the data transmission is 2;
DIGI5 No symble byte,unit :0.1,When show 12.3,the data transmission is 123;
DIGI6 No symble byte,unit :0.001,When show 0.123,the data transmission is 123;
DIGI9 No symble byte,unit :0.01,When show 0.12,the data transmission is 12;
3. Data types
Modbus RTU Protocol
4. Mailing Address