Specifications

MODBUS COMMUNICATION MANUAL
5-2
Once the Comm Address has been entered, the C-More Boiler Controller can be accessed the
Modbus Network Master (BMS or EMS).
5.2.2 Modbus Direct Drive Control and Monitoring
Modbus Direct Drive Control of the C-More Boiler Controller is set up as follows:
1. Enter and store a valid Comm Address using the procedures in paragraph 5.2.1.
2. Scroll through the Configuration Menu and change the following menu items to the settings
shown:
MENU OPTION
SETTING
Boiler Mode Direct Drive
Remote Signal Network
3. The C-More Controller is now set for Direct Drive operation via the Modbus Network.
AERCO recommends that the Setpoint Limiting feature in the Configuration Menu be enabled.
Also, ensure that the Failsafe Mode setting is set to the desired setting (Shutdown or Constant
Setpoint) in the event that the Modbus Network signal is lost.
5.2.3 Modbus Remote Setpoint Control
Modbus Remote Setpoint Control of the C-More Boiler Controller is set up as follows:
1. Enter and store a valid Comm Address using the procedures in paragraph 5.2.1.
2. Scroll through the Configuration Menu and change the following menu items to the settings
shown:
MENU OPTION
SETTING
Boiler Mode Remote Setpoint
Remote Signal Network
3. The C-More Controller is now set for Remote Setpoint operation via the Modbus Network.
AERCO recommends that the Setpoint Limiting feature in the Configuration Menu be enabled.
Also, ensure that the Failsafe Mode setting is set to the desired setting (Shutdown or Constant
Setpoint) in the event that the Modbus Network signal is lost.