Customer Network Connections
Cntl Nr: PM375107-002
9
2
Customer Network Connections
When you select any BCMS monitoring option, a Comm Box with monitoring PCBs is installed on the
power feed (Standard End Feed or Center Feed.). The Comm Box contains monitoring PCBs and may
contain an optional protocol converter (for either Modbus TCP/IP or SNMP upstream).
2.1
Comm Box Customer Connections
The following customer network connections are made to the Comm Box:
•
(1) Modbus RTU cable entry hole. Installer runs the site network Modbus RTU cable through the
Modbus RTU hole and connects it to the Accumulator PCB in the Comm Box.
•
(1) or (2) Ethernet ports (IN/OUT):
o
(1) port if a protocol converter is installed for SNMP.
o
(2) ports if a protocol converter is installed for Modbus TCP/IP.
•
(1) USB port for connecting a PC to perform BCMS Setup.
With input power source monitoring, (3) fuses are also installed on the power feed to protect PCBs while
monitoring power input power phases (ABC).
Figure 1 Customer Network Connections on Comm Box
2.2
Making a Modbus RTU Connection
To present monitoring data to an upstream Modbus master, such as a BMS, BCMS Hub, or the 7-inch Local
Display, you must connect your upstream Modbus RTU cable directly to the
Accumulator PCB
. This is the
only network connection that requires you to open the Comm Box.
(2) Ethernet ports if Modbus
TCP/IP installed
(1) Ethernet port if SNMP
Protocol Converter installed
USB Port for
Setup from PC
Modbus RTU
Cable entry
hole
Fuses for
phase
connections
Standard End Feed with Comm Box
Comm Box
