1 monitoring and configuration control, 2 modbus direct drive control and monitoring, 3 modbus remote setpoint control – AERCO Modbus Communications Manual User Manual

Page 76: Modbus, Communication, Gf-114

GF-114

MODBUS

Communication

Chapter 5

OMM-0035_0C

USER MANUAL

C-More/BMS Software Setup

Page

76 of 200 AERCO International, Inc. • 100 Oritani Dr. • Blauvelt, NY 10913 • Ph.: 800-526-0288 05/18/12

5.2.1 Monitoring and Configuration Control

In order for the C-More Boiler Controller to be recognized by the Modbus Master, a valid Network

Comm Address must be entered in the Setup Menu as follows:

NOTE

A C-More Boiler Controller can be monitored or configured on the

Modbus Network regardless of its mode of control.

1. Scroll through the Setup Menu until Comm Address is displayed.
2. With Comm Address displayed, press the

CHANGE key.

3. Using the ▲ or ▼ arrow key, enter the appropriate Comm Address from 1 to 127.
4. Press the

ENTER key to store the Comm Address in memory.

Once the Comm Address has been entered, the C-More Boiler Controller can be accessed by

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 options to the

settings shown:

MENU OPTION

SETTING

Boiler Mode Direct Drive

Remote Signal

Network

4. The C-More Controller is now set for Direct Drive operation via the Modbus Network.
5. 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: