CB FALCON MODBUS COMMUNICATION
25
Table 4. CB Falcon Modbus register map
0242 0578 CH setpoint source R/W U16 Source for CH setpoint:
0=Local setpoint
(registers 211, 212, etc.),
1=Modbus setpoint
(register 579),
2=4-20mA remote control
(register 15)
0243 0579 CH Modbus setpoint R/W U16
-40°-130° (0.1°C precision)
a
0244 0580 CH modulation rate source R/W U16 0=Local modulation (sensor),
1=Modbus binary fraction
i
,
2=Modbus modulation step
h
3=4-20mA modulation
(register 15)
0245 0581 CH Modbus rate R/W U16
Commanded CH modulation rate
h
when source is
Modbus
(see register 580).
0246 0582 CH priority vs. Lead Lag R/W U16 0= Lead Lag > CH,
1=CH > Lead Lag
0247 0583 CH 4mA water temperature R/W U16 Temperature corresponding to 4mA signal input:
-40°-130° (0.1°C precision)
a
0248 0584
CH 20mA water
temperature
R/W U16 Temperature corresponding to 4mA signal input:
-40°-130° (0.1°C precision)
a
0249 0585 CH 4mA steam pressure R/W U16 Pressure corresponding to 4mA signal input:
0-150psi (0.1psi precision)
024A 0586 CH 20mA steam pressure R/W U16 Pressure corresponding to 4mA signal input:
0-150psi (0.1psi precision)
024B-024F 0587-0591 RESERVED
EXTENDED LIMITS
CONFIGURATION
0250 0592
Heat exchanger high limit
enable
R/W U16 0=Disable Heat exchanger high limit,
1= Enable Heat exchanger high limit
0251 0593
Heat exchanger high limit
setpoint
R/W U16
-40°-130° (0.1°C precision)
a
0252 0594
Heat exchanger high limit
response
R/W U16 0=Lockout,
1=Recycle&delay,
2=Recycle&delay with retry limit
0253 0595
Heat exchanger high limit
delay
R/W U16 0-64800 seconds (18 hours), 0xFFFF=Not configured
0254 0596 Heat exchanger retry limit R/W U16
Maximum number of recycles due to Heat exchanger
high limit.
0255-025F 0597-0607 RESERVED
CONNECTOR
CONFIGURATION
0260 0608 S1 (J8-4) connector type
(Inlet sensor)
R/W U16
SAFETY parameter
f
:
0=Unconfigured,
1=Raw A2D counts,
2=10K NTC dual temperature,
3=10K NTC single temperature,
4=12K NTC single temperature,
5=0-15 psi pressure,
6 =0-150 psi pressure,
7=4-20 mA
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