CleaverBrooks CFC-500 - Page 278

CB FALCON MODBUS COMMUNICATION
8
Table 4. CB Falcon Modbus register map
0035 0053
4-20mA remote control
input(S2=J8-6) state
R U16
0=None, 1= Normal, 2=Open, 3=Shorted, 4=Outside
high range, 5=Outside low range, 6=Not reliable
0036 0054 Pressure sensor (S1=J8-4)
state
R U16
0=None, 1= Normal, 2=Open, 3=Shorted, 4=Outside
high range, 5=Outside low range, 6=Not reliable
0037 0055
Stack operation or Heat
exchanger sensor (S9=J9-6)
state
R U16
0=None, 1= Normal, 2=Open, 3=Shorted, 4=Outside
high range, 5=Outside low range, 6=Not reliable
DEMAND AND
MODULATION STATUS
0038 0056 Active rate limiter R U16 0=None,
1=Outlet high limit,
2=Delta T limit,
3=Stack limit,
4=Slow start limit,
5=Anti-condensation,
6=Minimum modulation,
7=Forced rate,
8= IAS is open
0039 0057 Limited rate R U16
RPM or %
c
003A 0058 Active rate override R U16 0=None,
1=Burner control default,
2=Burner control,
3=Manual firing rate,
4=Manual firing rate off,
5=Fan on during off cycle
003B 0059 Override rate R U16
RPM or %
c
003C 0060 Demand rate R U16
RPM or %
c
003D-003F 0061-0063 RESERVED
CENTRAL HEATING (CH)
STATUS
0040 0064 CH status R U16 0=Unknown,
1=Disabled,
2=Normal,
3=Suspended
0041 0065 CH setpoint source R U16 0=Unknown,
1=Normal setpoint,
2=TOD setpoint,
3=Outdoor reset,
4=Remote control
0042 0066 CH heat demand R U16 0=Off,
1=On
0043 0067 CH burner demand R U16 0=Off,
1=On
0044 0068 CH requested rate R U16
RPM or %
c
0045 0069 CH frost heat demand R U16 0=Off,
1=On
0046 0070 CH frost burner demand R U16 0=Off,
1=On
0047 0071 Active CH on hysteresis R U16
0°-130° (0.1°C precision)
a
0048 0072 Active CH off hysteresis R U16
0°-130° (0.1°C precision)
a
0049 0073
Active CH pressure on
hysteresis
R U16 0-150psi (0.1psi precision)
004A 0074
Active CH pressure off
hysteresis
R U16 0-150psi (0.1psi precision)
004B-004F 0075-0079 RESERVED