Rockwell Automation 1785-BCM_BEM, D17856.5.4 PLC-5 Backup Communication Module User Manual - Manual (Page 43)

Installing Your PLC-5 Backup System
Chapter 3
3-20
5. Connect the 1770-CD cable from the Data Highway Plus network to
9, 10, and 11 on the wiring arm of one of the 1785-BCM modules as
shown in Figure 3.14.
Figure 3.14
Data Highway Plus Connections Added Between 1785-BCM Module and
Data Highway Plus Network
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
9
1 0
1 1 B lu e
S h ie ld
C le a r
Note that the Data Highway Plus connects to either 1785-BCM
module; it does not connect directly to the processor.
PLC-5 processor PLC-5 processor
1785-BCM Module
1771-P4S
Power Supply
1785-BCM Module
1771-P4S
Power Supply
Data Highway Plus
Data Highway Plus Network
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.
Now that you’ve installed your PLC-5 backup system and made
connections, you are ready to start up your system. Before doing so,
double check all connections against the procedures described in this
chapter. If your backup systems requires the use of a 1785-BEM module,
refer to Chapter 4 for a description of the module and installation
procedures. Chapter 5 describes the operation of the 1785-BCM module
and the backup system and shows procedures for starting up and operating
your system. What to Do Next