Carrier CCU Manual De Regulatión página 73

13 - BUS FOR CONNECTION TO AN RS485 MODBUS CMS
■ Bit composition
- Function 1 or 2 is used for reading
- Function 5 or 15 is used for writing
Register No. Description
1 P706 control type
16 P330 supply air fan operation
17 P300 compressor 1 operation
18 P304 compressor 2 operation
19 P320 stage 1 electric heater operation
20 P322 stage 2 electric heater operation
32 P279 start-up request
33 P287 Hot water coil or electric heater contact
34 P288 Summer or winter mode contact
48 P350 critical fault summary
49 P352 non-critical fault summary
50 Supply air fan fault
51 Air flow fault
52 Filter fouled fault
53 Clogged filter fault
55 Electric heater fault
56 Humidifier fault
57 Water leak fault
58 Condensation unit 1 fault
59 Condensation unit 2 fault
60 High temperature fault
61 Low temperature fault
62 High humidity fault
63 Low humidity fault
64 Controlled temperature sensor fault
65 Outlet temperature sensor fault
66 Outdoor temperature sensor fault
67 Brine temperature sensor fault
68 EEPROM fault
70 Humidifier connection fault
71 FMA1 connection fault
72 FMA2 connection fault
73 FMA3 connection fault
74 Update fault with the temperature value controlled by Modbus
75 Controlled temperature sensor fault (2-10 V)
76 2-10 V control signal fault
80 Low pressure fault circuit 1
81 High pressure or circuit 1 break fault
96 Low pressure fault circuit 2
97 High pressure or circuit 2 break fault
112 FMA1 fault summary
128 FMA2 fault summary
144 FMA3 fault summary
512 On/Off
Format Type Unit
0 = Local
Binary R
1 = Remote
0 = Off
Binary R
1 = On
0 = Off
Binary R
1 = On
0 = Off
Binary R
1 = On
0 = Off
Binary R
1 = On
0 = Off
Binary R
1 = On
0 = Open
Binary R
1 = Closed
0 = Open
Binary R
1 = Closed
0 = Open
Binary R
1 = Closed
0 = Inactive
Binary R
1 = Active
0 = Inactive
Binary R
1 = Active
Binary R 1 = Fault
Binary R 1 = Fault
Binary R 1 = Fault
Binary R 1 = Fault
Binary R 1 = Fault
Binary R 1 = Fault
Binary R 1 = Fault
Binary R 1 = Fault
Binary R 1 = Fault
Binary R 1 = Fault
Binary R 1 = Fault
Binary R 1 = Fault
Binary R 1 = Fault
Binary R 1 = Fault
Binary R 1 = Fault
Binary R 1 = Fault
Binary R 1 = Fault
Binary R 1 = Fault
Binary R 1 = Fault
Binary R 1 = Fault
Binary R 1 = Fault
Binary R 1 = Fault
Binary R 1 = Fault
Binary R 1 = Fault
Binary R 1 = Fault
Binary R 1 = Fault
Binary R 1 = Fault
Binary R 1 = Fault
Binary R 1 = Fault
Binary R 1 = Fault
Binary R 1 = Fault
Binary R 1 = Fault
0 = Off
Binary R/W
1 = On
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