Rockwell Automation 2711 MODBUS COMMUNICATIONS FOR PANELVIEW TERMINALS - Manual (Page 5)

Publication 2711-6.9
Modbus Communications for PanelView Terminals 5
Connection to a Modbus
Plus Network Using a Bridge Multiplexer (BM85) or an RF modem, the Modbus
PanelView can be connected to a Modbus Plus network.
Modbus Plus is a local area network supporting up to 64 nodes at a
data transfer rate of 1,000,000 bits/second. Modbus Plus provides host
level peer-to-peer communication for network devices. The network
also provides distributed input/output (DIO) communications.
The BM85 Bridge Multiplexer provides connection to a Modbus Plus
network through the PanelView Modbus RS-232 serial port.
Modbus +
Modbus +
PanelView
RS-232
Port
Cable - PanelView to BM85
Bridge Multiplexer
B M
85
RF
Modem
RF
Modem
Modbus
PanelView BM85
2
3
5
3
2
4
5
6
7
8
9
RS-232
Port
Modbus
PanelView