Schneider Electric Modbus Plus Network Bridge Multiplexer none - Manual (Page 13)

Introducing the BM85 Bridge/Multiplexers 31007492 3
PROGRAMMABLE
CONTROLLER
TO
OTHER
NODES
BP85
BRIDGE
PLUS
HOST DEVICE
NETWORK
ADAPTER
BM85
BRIDGE
MULTIPLEXER
MODBUS MASTER, SLAVE,
OR NETWORKED DEVICES
HOST
COMPUTER
RS232 OR RS485
SERIAL DEVICES
BM85
BRIDGE
MULTIPLEXER
PROGRAMMABLE
CONTROLLER
MODBUS PLUS NETWORK
MODBUS PLUS NETWORK
Figure 1 BM85 Bridge/Multiplexers on Modbus Plus
Depending on the BM85 model and the types of devices connected at its
ports, serial port devices can communicate with:
V Devices at the same serial port
V Devices at other serial ports on the same BM85
V Node devices on the Modbus Plus network
V Devices at serial ports on other BM85s across Modbus Plus.