CleaverBrooks CFC-500 Operation, Service And Parts Manual page 294

CB FALCON MODBUS COMMUNICATION
Table 4. CB Falcon Modbus register map
022D 0557
022E 0558
022F 0559
0230 0560
0231 0561
0232 0562
0233 0563
0234 0564
0235 0565
0236 0566
0237 0567
0238 0568
0239 0569
023A 0570
023B 0571
023C 0572
023D 0573
023E 0574
023F 0575
0241 0577
Lead Lag CH setpoint
source
Lead Lag modulation sensor R/W
Lead Lag modulation
backup sensor
Lead Lag CH 4 mA water
temperature
Lead Lag CH 20 mA water
temperature
Lead Lag CH Modbus
setpoint
Lead Lag CH Modbus STAT R/W
Slave mode
Slave command
Base load rate
Fan during off cycle rate
Slave sequence order
Lead Lag Modbus port
Slave demand to firing delay R/W
Slave capacity
Base load common rate
Rate allocation method
Lead allocation method
Lag allocation method
EXTENDED CH
CONFIGURATION
CH Modbus STAT
R/W U16 0=Local setpoint
(register 546),
1=Modbus setpoint
(register 562),
2=4-20mA setpoint
(register 15)
U16 Sensor used for Lead Lag modulation:
0=S5 sensor,
1=S10 sensor
R/W U16 Backup sensor used for Lead Lag modulation:
0=No backup sensor,
1=Outlet sensor from lead boiler,
2=Average Outlet sensor from all slave boilers
R/W U16 Temperature corresponding to 4mA signal input:
-40°-130° (0.1°C precision)
R/W U16 Temperature corresponding to 20mA signal input:
-40°-130° (0.1°C precision)
R/W U16
-40°-130° (0.1°C precision)
U16 0=No call for heat,
1=Call for heat
R/W U16 0=Use first according to priority,
1=Equalize run-time,
2=Use last according to priority
R/W U16 Bit map:
15=Slave demand request,
14=Slave suspend startup,
13=Slave run fan request,
12=Turn on auxiliary pump X,
11=Turn on auxiliary pump Y,
10=Turn on auxiliary pump Z,
9=Reserved (always 0),
8=Commanded rate is binary fraction %
7-0=Commanded rate
R/W U16
RPM or %
R/W U16
RPM or %
R/W U16 0-255
R/W U16 Modbus port for Lead Lag control:
0=No port assigned,
1=MB1 (Local Modbus) port,
2=MB2 (Global Modbus) port
U16 0-64800 seconds (18 hours), 0xFFFF=Not configured
R/W U16 MBH (Million BTU / hour) units
R/W U16 0=Disabled,
1-100% (in 0.1% units)
R/W U16 0=Parallel common base limited
R/W U16 0=Sequence order rotation,
1=Lowest measured run time
R/W U16 0=Sequence order rotation,
1=Lowest measured run time
R/W U16 Modbus call for heat (see register 209):
0=No call for heat,
1=Call for heat
24
a
a
a
h
c
c
b
g
,