06/05/13 AERCO International, Inc. • 100 Oritani Dr. • Blauvelt, NY 10913 • Ph: 800-526- 0288 Page 96 of 112
Modulex E8 Controller and BCM
Operations and Maintenance Manual
Table 9-4: BCM Standard Holding Register Address Mapping
Menu Item Units and Range Default/(Comments)
CONTROL REGISTERS
1
AERCO BMS
II/ACS Requested
Modulation Level
% (0 to 100)
A value other than 0
requests Run mode and
supersedes the value
set for Max Modulation
1017
1004 Requested Setpoint
32°F – 212°F (0°C – 100°C)
(Value x 10)
1001 System Command enum (0xAA)
0xAA: Restart Slave
1021
Heat Request
Command
(0x01, 0x33, 0x44, 0x55,
0xBB, 0xCC, 0xEE)
Space Heating
mode enabled
Space Heating &
DHW modes
enabled
Space Heating
requested & DHW
enabled
If enum is none of the above,
(Read/Write)
0x01
1022
32°F – 212°F (0°C – 100°C)
(Value x 10)
(Read/Write)
1023 Pump Control
0 = No action
1 = Switch OFF
(Read/Write)