Ufly Controller and BCM for Modulex EXT
CHAPTER 7: BCM MODBUS AND ADDRESS ASSIGNMENTS
OMM-0159_A
• 6/28/2022 Technical Support • (800) 526-0288 • Mon-Fri, 8 am - 5 pm EST Page
60
of
83
7.2 BCM Controller Standard Holding Register Assignments
7.2.1 BCM Controller Standard Input Register Assignments
The BCM Controller has only two Read Only Input Register addresses as shown below.
TABLE 7-3: BCM Controller Standard Input Register Address Mapping
Modbus Data
Address
Menu Item
Units and Range
0
Error Code
0
–
0xFFFF
LSB:
Error Code
MSB:
Identification code of
fault device:
0: BMM #0 to
7: BMM #7
255: BCM
1
Unit Status
enum (1, 3, 5)
1 = Standby (ready to run but not fired)
3 = Remote (fired)
5 = Fault (failure detected)
2
Flow Sensor Temp
14
°
to 248
°
F (-10
°
to 120
°
C) (Valve X10)
3
Return Flow Temp
32
°
to 248
°
F (0
°
to 120
°
C) (Valve X10)
7.2.2 BCM Controller Standard Holding Register Assignments
The BCM Controller Holding Registers contain functions that are Read Only, Write Only or both
Read & Write. The address assignments for these functions are listed below and are grouped into
the following categories: Control Registers, Operating Data Registers, System Data Settings and
Test Registers. Functions within each group are not necessarily in hex address order.
The Read Only, Write Only or Read/Write status for each function in Table 8-4 is shown in the
Default/Comments column.
Summary of Contents for AERCO EXT
Page 4: ......