Rockwell Automation 1785-BCM_BEM, D17856.5.4 PLC-5 Backup Communication Module User Manual - Manual (Page 39)

Installing Your PLC-5 Backup System
Chapter 3
3-16
Figure 3.10
Remote I/O Connections Added Between 1785-BCM Module
and Remote I/O Adapter Module
Local I/O Chassis Local I/O Chassis
Blue
Shield
Clear
15
16
17
1
2
3
17984
Blue
Shield
Clear
HSSL was previously connected but is not shown for clarity.
Connections show default configuration with Channel 1A as Data
Highway Plus and Channel 1B as Remote I/O Scanner.
Note that the remote I/O link from the adapters connect to either
1785-BCM module; the remote I/O link does not connect directly to
the processor.
PLC-5 processor PLC-5 processor 1771-P4S
power supply
1785-BCM Module 1785-BCM Module
1771-P4S
power supply
1771-ASB Remote
Adapter Module 1771-ASB Remote
Adapter Module
Remote I/O Chassis No. 1
Remote I/O Chassis No. n