Ufly Controller and BCM for Modulex EXT
CHAPTER 7: BCM MODBUS AND ADDRESS ASSIGNMENTS
OMM-0159_A
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Table 7-4: BCM Standard Holding Register Address Mapping
Modbus Data
Address
Menu Item
Units and Range
Default/(Comments)
9101
CH maximum target
temperature.
68°F to 212°F
(20°C to 100°C)
(Read/Write)
185°F
9102
CH: enable the
parallel operation
CH/DHW
0/1:
0 = Parallel Operation is
disabled.
1 = Parallel operation is
enabled.
(Read/Write)
0
9200
DHW minimum
target temperature
77°F to 113°F
(25°C to 45°C)
(Read/Write)
95°F
9201
DHW maximum
target temperature
122°F to 149°F
(50°C to 65°C)
(Read/Write)
149°F
9202
DHW request: tank
to target
temperature
differential.
-36°F to 36°F
(-20°C to 20°C)
(Read/Write)
7°F
9203
DHW request: tank
to target
temperature
hysteresis.
2°F to 36°F
(1°C to 20°C)
(Read/Write)
14°F
9204
DHW: tank
temperature
regulation gain
0-15
(Read/Write)
0
9206
DHW: Boiler request
maximum
temperature
122°F to 212°F
(50°C to 100°C)
(Read/Write)
167°F
9211
DHW Pump Off Delay
5 - 600 sec
(Read/Write)
60 sec.
9212
Maximum
modulation level that
enables the CH and
DHW parallel
operation
0-100%
(Read/Write)
0%
9213
Maximum regulation
error that disables
the CH and DHW
parallel operation
0-54°F
(Read/Write)
9°F
3007
Pump Modulation
Output @ Minimum
Burner Level
0
–
10V
(Value x 10)
(Read/Write)
3V
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