Rockwell Automation 1785-BCM_BEM, D17856.5.4 PLC-5 Backup Communication Module User Manual - Manual (Page 41)

Installing Your PLC-5 Backup System
Chapter 3
3-18
1. Connect one end of a 1770-CD cable to the PEER COMM INTFC
connector on one of the PLC-5 programmable controllers, as shown
in Figure 3.12.
Figure 3.12
Data Highway Plus Connections Added Between PLC-5
and 1785-BCM Module
L o c a l I/O C h a s s is L o c a l I/O C h a s s is
1 7 9 8 5
PLC-5 processor PLC-5 processor
HSSL and Remote I/O link were previously connected but are
not shown for clarity.
Connections show default configuration with Channel 1A as Data Highway Plus and
Channel 1B as Remote I/O Scanner.
1785-BCM Module
1771-P4S
Power Supply
1785-BCM Module
1771-P4S
Power Supply
Data Highway Plus
Data Highway Plus
Clear
Shield
Blue
Clear
Shield
Blue