CleaverBrooks CFC-500 Operation, Service And Parts Manual page 288

CB FALCON MODBUS COMMUNICATION
Table 4. CB Falcon Modbus register map
012B 0299
012C 0300
012D 0301
012E 0302
012F 0303
DHW pump options 2
Boiler pump options 1
Boiler pump options 2
System pump options 1
System pump options 2
R/W U16 Bit map:
15=Pump used for Lead Lag,
14=Pump used for local demand,
13-9=Reserved (always 0),
8=Force pump off when DHW high limit,
7=Force pump off when DHW anti-condensation,
6=Force pump off when CH anti-condensation,
5=Force pump off when DHW priority is active,
4=Force pump on when DHW frost protection,
3=Force pump on when CH frost protection,
2=Force pump on when Lead Lag slave demand,
1=Force pump on when local burner demand,
0=Force pump on when Outlet high limit
R/W U16 Bit map:
15=Normal pump demand when auxiliary pump Z is set,
14=Normal pump demand when auxiliary pump Y is set,
13=Normal pump demand when auxiliary pump X is set,
12-7=Reserved (always 0),
6=Normal pump demand when DHW service is active,
5=Normal pump demand when CH service is active,
4=Reserved,
3=Normal pump demand when DHW demand,
2=Normal pump demand when CH demand,
1=Normal pump demand when local burner demand,
0=Local demand inhibited for faults
R/W U16 Bit map:
15=Pump used for Lead Lag,
14=Pump used for local demand,
13-9=Reserved (always 0),
8=Force pump off when DHW high limit,
7=Force pump off when DHW anti-condensation,
6=Force pump off when CH anti-condensation,
5=Force pump off when DHW priority is active,
4=Force pump on when DHW frost protection,
3=Force pump on when CH frost protection,
2=Force pump on when Lead Lag slave demand,
1=Force pump on when local burner demand,
0=Force pump on when Outlet high limit
R/W U16 Bit map:
15=Normal pump demand when auxiliary pump Z is set,
14=Normal pump demand when auxiliary pump Y is set,
13=Normal pump demand when auxiliary pump X is set,
12-7=Reserved (always 0),
6=Normal pump demand when DHW service is active,
5=Normal pump demand when CH service is active,
4=Reserved,
3=Normal pump demand when DHW demand,
2=Normal pump demand when CH demand,
1=Normal pump demand when local burner demand,
0=Local demand inhibited for faults
R/W U16 Bit map:
15=Pump used for Lead Lag,
14=Pump used for local demand,
13-9=Reserved (always 0),
8=Force pump off when DHW high limit,
7=Force pump off when DHW anti-condensation,
6=Force pump off when CH anti-condensation,
5=Force pump off when DHW priority is active,
4=Force pump on when DHW frost protection,
3=Force pump on when CH frost protection,
2=Force pump on when Lead Lag slave demand,
1=Force pump on when local burner demand,
0=Force pump on when Outlet high limit
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