Address and details of the variables
Address
Description
Hex Dec No.
0000 0
1
USER POWER ON/OFF
0001 1
2
USER SWEEP ON/OFF
0100 256 257 USER INTERFACING WHILE UNIT OFF BY MICRO SWITCHRW
Register address & details
Address
Description
Hex Dec No.
0000 0
1
USER MODE
0001 1
2
USER FAN SPEED LEVEL
0002 2
3
USER SET TEMPERATURE (T.SET)
0010 16
17
System operating status register#1
0011 17
18
System operating mode
0012 18
19
System fan speed level
0021 33
34
System alarm status
0022 34
35
System operating status register#2
0023 35
36
Room temperature (T.ROOM)
0024 36
37
Indoor coil temperature (T.INDC)
0025 37
38
Water-in temperature (T.INW)
0026 38
39
Microswitch status
0210 528 529 UNIT'S SLAVE ADDRESS
0211 529 530 MODBUS DATA BAUD RATE
0212 530 531 MODBUS DATA PARITY & STOP BIT(S)
34
* R = read only, RW = read/write
R/W Description
RW
RW
0 = Disable switch-on by user (always forced switch-off)
1 = Enable switch-on by user
* R = Read only , RW = Read/Write
R/W
Description
0 = FAN
1 = COOL
RW
2 = DRY
3 = HEAT
4 = AUTO
FAN LEVEL
0 = AUTO
RW
1 = Low
2 = Medium
3 = High
RW
150-300 da 15.0 a 30.0 °C
R
Bit#0 = Power, Bit#1 = Sweep
R
0-3 per FAN, COOL, DRY, HEAT
R
0 = Off , 1-4 per livello 1-4
Bit#0 = T.ROOM error
#1 = TINDC error
#2 = TWIN error
R
#3 = Fan fail
#14 = Wrong mode water (not cool)
#15 = Wrong mode water (not heat)
Bit#0 = Cool relay
#1 = Pump relay
R
#2 = Rev/Heat relay
#3 = Aux relay
R
0-500 for 0.0 to 50.0 °C
R
0-500 for 0.0 to 50.0 °C
R
0-500 for 0.0 to 50.0 °C
0 = open
R
1 = close
RW
1-99
0 = 1200 bits per second
1 = 2400 bits per second
2 = 4800 bits per second
RW
3 = 9600 bits per second
4 = 19200 bits per second
5 = 38400 bits per second
0 = no parity & 2 stop bits
1 = odd & 1 stop
2 = even & 1 stop