AERCO Modbus Communications Manual - Manual (Page 79)

Chapter 5
MODBUS
Communication GF-114
C-More/BMS Software Setup USER MANUAL OMM-0035_0C
05/18/12 AERCO International, Inc. • 100 Oritani Dr. • Blauvelt, NY 10913 • Ph: 800-526-0288 Page 79 of 200
BMS RS485 loop. (This address must be the same as the Comm Address setting in the
C-More Boiler Controller).
8. Press the HDR TEMP key again until NETW BOILER 2 is shown on the top line of the
display. Use the ▲ and ▼ arrow keys to set the address of the second Boiler being
controlled on the BMS RS485 loop. (This address must be the same as the Comm
Address setting in the C-More Boiler Controller).
9. Repeat step 8 for each additional C-More Boiler being controlled on the BMS RS485
loop.
10. This completes programming for the BMS RS485 Network. Press the FIELD ADJ key to
exit the Field Adjust Mode. The yellow LED on the key should go off.
IMPORTANT
Boilers #1 thru #8 are reserved for the Legacy Boilers connected to
the Pulse Width Modulation (PWM) connections on the BMS.
Therefore, NETW BOILER 1 is the same as Boiler #9. NETW
BOILER 2 is the same as Boiler #10 and so on.
The BMS is now programmed to control the Networked Boilers, as well as any Legacy Boilers
connected to it. The BMS will automatically detect any C-More Boiler that is programmed for
Network Control as follows:
• Boiler Mode = Direct Drive
• Remote Signal = Network
• Comm Address = Matches one of the NETW BOILER addresses stored in the BMS