CleaverBrooks CFC-500 Operation, Service And Parts Manual page 279

Table 4. CB Falcon Modbus register map
0050 0080
0051 0081
0052 0082
0053 0083
0054 0084
0055 0085
0056 0086
0057 0087
0058 0088
0059 0089
005A 0090
005B 0091
005C 0092
005D 0093
DOMESTIC HOT WATER
(DHW) STATUS
DHW status
DHW setpoint source
DHW priority count
DHW heat demand
DHW burner demand
DHW requested rate
DHW frost heat demand
DHW frost burner demand
Active DHW on hysteresis
Active DHW off hysteresis
DHW storage time
DHW storage heat demand R
DHW storage burner
demand
PUMP STATUS
Pump A status
R U16 0=Unknown,
1=Disabled,
2=Normal,
3=Suspended
R U16 0=Unknown,
1=Normal setpoint,
2=TOD setpoint,
5=DHW tap setpoint,
6=DHW preheat setpoint
R U16 Countdown of time when DHW has priority over CH
(secs). Applicable when DHW priority time is enabled
(see register 452).
R U16 0=Off,
1=On
R U16 0=Off,
1=On
R U16
c
RPM or %
R U16 0=Off,
1=On
R U16 0=Off,
1=On
R U16
0°-130° (0.1°C precision)
R U16
0°-130° (0.1°C precision)
R U16 Elapsed DHW storage time (secs)
U16 0=Off,
1=On
R U16 0=Off,
1=On
R U16 Bit map:
Demand:
15-14=Reserved,
13=Auxiliary 2 pump demand,
12=Auxiliary 1 pump demand,
11=System pump demand,
10=Boiler pump demand,
9=DHW pump demand,
8=CH pump demand
Reason:
7=Reserved,
6=Pump assigned to logical pump,
5=Pump exercise requested,
4=On due to exercise,
3=On due to overrun,
2=Forced off,
1=Forced on,
0=On due to normal demand
9
CB FALCON MODBUS COMMUNICATION
a
a