CleaverBrooks CFC-500 - Page 294

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