Watts AERCO EXT Installation, Operation & Maintenance Manual page 63

Ufly Controller and BCM for Modulex EXT
CHAPTER 7: BCM MODBUS AND ADDRESS ASSIGNMENTS
Table 7-4: BCM Standard Holding Register Address Mapping
Modbus Data
Menu Item
Address
CH actual target
1400
temperature
DHW actual target
1407
temperature
DHW actual
1408
temperature
1020 Operating Mode
1100 Linked BMM
1101 Inserted BMM
1102 BMM in Check Mode
1103 BMM Flame Status
1104 BMM Alarm Status
BMM Maximum
1108
Modulation Level
Pump Modulation
1109
OMM-0159_A • 6/28/2022
Units and Range
32°F-212°F (0°C-100°C)
(Value x 10)
32°F-212°F (0°C-100°C)
(Value x 10)
14°F-212°F (-10°C-100°C)
(Value x 10)
enum (0, 1, 2, 3, 6)
1: Space Heating
4: CH frost protection
Flags (0 -255)
Bit 0: BMM #0
Bit 7: BMM #7
Flags (0 -255)
Bit 0: BMM #0
Bit 7: BMM #7
Flags (0 -255)
Bit 0: BMM #0
Bit 7: BMM #7
Flags (0 – 255)
Bit 0: BMM #0
Bit 7: BMM #7
Flags (0 – 255)
Bit 0: BMM #0
Bit 7: BMM #7
0 – 10V (Value x 10)
Output
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0: Standby
2: DHW
3: Check
6: Test
to
to
to
to
to
0 – 100%
Default/(Comments)
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