Carrier CCU - Page 73

EN
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 Format Type Unit
1 P706 control type Binary R
0 = Local
1 = Remote
16 P330 supply air fan operation Binary R
0 = Off
1 = On
17 P300 compressor 1 operation Binary R
0 = Off
1 = On
18 P304 compressor 2 operation Binary R
0 = Off
1 = On
19 P320 stage 1 electric heater operation Binary R
0 = Off
1 = On
20 P322 stage 2 electric heater operation Binary R
0 = Off
1 = On
32 P279 start-up request Binary R
0 = Open
1 = Closed
33 P287 Hot water coil or electric heater contact Binary R
0 = Open
1 = Closed
34 P288 Summer or winter mode contact Binary R
0 = Open
1 = Closed
48 P350 critical fault summary Binary R
0 = Inactive
1 = Active
49 P352 non-critical fault summary Binary R
0 = Inactive
1 = Active
50 Supply air fan fault Binary R 1 = Fault
51 Air ow fault Binary R 1 = Fault
52 Filter fouled fault Binary R 1 = Fault
53 Clogged lter fault Binary R 1 = Fault
55 Electric heater fault Binary R 1 = Fault
56 Humidier fault Binary R 1 = Fault
57 Water leak fault Binary R 1 = Fault
58 Condensation unit 1 fault Binary R 1 = Fault
59 Condensation unit 2 fault Binary R 1 = Fault
60 High temperature fault Binary R 1 = Fault
61 Low temperature fault Binary R 1 = Fault
62 High humidity fault Binary R 1 = Fault
63 Low humidity fault Binary R 1 = Fault
64 Controlled temperature sensor fault Binary R 1 = Fault
65 Outlet temperature sensor fault Binary R 1 = Fault
66 Outdoor temperature sensor fault Binary R 1 = Fault
67 Brine temperature sensor fault Binary R 1 = Fault
68 EEPROM fault Binary R 1 = Fault
70 Humidier connection fault Binary R 1 = Fault
71 FMA1 connection fault Binary R 1 = Fault
72 FMA2 connection fault Binary R 1 = Fault
73 FMA3 connection fault Binary R 1 = Fault
74 Update fault with the temperature value controlled by Modbus Binary R 1 = Fault
75 Controlled temperature sensor fault (2-10 V) Binary R 1 = Fault
76 2-10 V control signal fault Binary R 1 = Fault
80 Low pressure fault circuit 1 Binary R 1 = Fault
81 High pressure or circuit 1 break fault Binary R 1 = Fault
96 Low pressure fault circuit 2 Binary R 1 = Fault
97 High pressure or circuit 2 break fault Binary R 1 = Fault
112 FMA1 fault summary Binary R 1 = Fault
128 FMA2 fault summary Binary R 1 = Fault
144 FMA3 fault summary Binary R 1 = Fault
512 On/Off Binary R/W
0 = Off
1 = On
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