Rockwell Automation 1785-BCM_BEM, D17856.5.4 PLC-5 Backup Communication Module User Manual - Manual (Page 57)

Installing Your 1785-BEM Module
Chapter 4
4-14
Making Channel 2A Connections
Figure 4.8 shows the Channel 2A connections you must make for your
PLC-5 backup system. These connections are between the:
PLC-5/40 or PLC-5/60 processor and the 1785-BEM module
two 1785-BEM modules
1785-BEM module and Data Highway Plus network or remote I/O link
Figure 4.8
Channel 2A Connections
1785-BCM module 1785-BEM module
Local I/O Chassis Local I/O Chassis
Data Highway Plus network or Remote I/O link
Channel 2A
19089 1785-BCM module was connected in Chapter 3 but is not shown for clarity.
1785-BCM module 1785-BEM module
PLC-5/40, -5/60, -5/80 PLC-5/40 or -5/60 1771-P4S
power supply 1771-P4S
power supply
1. Connect one end of a 1770-CD cable to Channel 2A on one of the
PLC-5/40 or PLC-5/60 programmable controllers, as shown in
Figure 4.9.