Rockwell Automation 1785-BCM_BEM, D17856.5.4 PLC-5 Backup Communication Module User Manual - Manual (Page 63)

Installing Your 1785-BEM Module
Chapter 4
4-20
4. Connect a 1770-CD cable to terminals 15, 16, and 17 on each of the
1785-BEM wiring arms as shown in Figure 4.14.
Figure 4.14
Channel 2B Connections Added Between 1785-BEM Modules
1771 –P4S
Power Supply 1771 –P4S
Power Supply
1785 –BCM Module
Local I/O Chassis Local I/O Chassis
1785 –BEM Module 1785 –BCM Module 1785 –BEM Module
19095
See
Note
Shield
See
Note
Channel 2B
Data Highway Plus – connect the signal conductors with Clear, Shield, and Blue insulation to
terminals 15, 16, and 17 of 1785 –BEM module, respectively.
Remote I/O – connect the signal conductors with Blue, Shield, and Clear insulation to terminals 15, 16. and
17 of 1785 –BEM module. respectively.
Wire channel for either Data Highway Plus or Remote I/O
PLC-5/40, -5/60, -5/80
PLC-5/40, -5/60, -5/80