AERCO Modbus Communications Manual - Manual (Page 14)

GF-114
MODBUS
Communication
Chapter 2
OMM-0035_0C
USER MANUAL Standard Register Assignments
Page 14 of 200 AERCO International, Inc. • 100 Oritani Dr. • Blauvelt, NY 10913 • Ph.: 800-526-0288 05/18/12
2.2 C-MORE BOILER CONTROLLER STANDARD REGISTER
ASSIGNMENTS
2.2.1 C-More Boiler Controller Standard Input Register Assignments
The Read Only Input Register addresses are listed in Table 2-1 which follows:
Table 2-1: C-More Boiler Controller Standard Input Register Address Mapping
Modbus Data
Address
Decimal (Hex)
Menu Item Units and Range
Default/
Comments
0 (0x0000)
Default Message
Display Code
Enum (1 to 64)
See Appendix A,
Table A-1 for listing
1 (0x0001) Unit Status
Enum (0, 1, 2, 3, 4, 5)
0 = Unit Status Disabled
1 = Unit Status Standby
2 = Unit Status Manual
3 = Unit Status Remote
4 = Unit Status Auto
5 = Unit Status Fault
2 (0x0002) Outlet Temp
DEGREES_1 (0 to 1000)
See Appendix A,
Tables A-2 and A-3 for
Conversions
3 (0x0003) Inlet Temp DEGREES_1 (0 to 1000)
See Appendix A,
Tables A-2 and A-3 for
Conversions
4 (0x0004) Aux Temp
DEGREES_1 (0 to 1000)
See Appendix A,
Tables A-2 and A-3 for
Conversions
5 (0x0005) Outdoor Temp DEGREES_2 (0 to 1000)
See Appendix A,
Tables A-2 and A-3 for
Conversions
6(0x0006) Exhaust Temp DEGREES_2 (0 to 1000)
See Appendix A,
Tables A-2 and A-3 for
Conversions
7 (0x0007) FFWD Temp DEGREES_1 (0 to 1000)
See Appendix A,
Tables A-2 and A-3 for
Conversions
8 (0x0008) Fire Rate Out % (0 to 100)
9 (0x0009) O2 Level % (0 to 25)
10 (0x000A) CO Level PPM (0 to 500)
11 (0x000B) Run Cycles Low (LSB) int (0 to 65535)
The actual range for run
cycles is from
0 to 999,999
12 (0x000C) Run Cycles High (MSB) Int (0 to 15)