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Modbus, Communication – AERCO Modbus Communications Manual User Manual

Page 64

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GF-114

MODBUS

Communication

Chapter 4

OMM-0035_0C

USER MANUAL

Hardware Setup & Installation

Page

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

Figure 4-6: EMS Master To BMS II/ACS Slave Connection Diagrams (Sheet 2 of 2)


4.2.3 BMS/BMS II/ACS Master To C-More Boiler Controller Slaves

Wiring connections for Modbus operation between a BMS/BMS II/ACS Master and C-More Boiler

Controller Slaves are made between the BMS/BMS II/ACS internal RS485 Port terminals and the

I/O Box for the associated C-More Boiler Controller. The RS485 Port terminals for the BMS and

BMS II/ACS are shown in Figure 4-4 and 4-5 respectively. The RS485 COMM connections at

each Boiler’s I/O Box are shown in Figure 4-7. Identical I/O Boxes are used for both Benchmark

and KC1000 Boilers.