Rockwell Automation 1785-BCM_BEM, D17856.5.4 PLC-5 Backup Communication Module User Manual - Manual (Page 155)

Reference Information
Appendix C
C-2
Figure C.1
1785-BCM Series A Module Communication Links
1 Terminals 9, 10, and 11 are connected between the 1785-BCM modules in the backup system; in addition
terminals 9, 10, and 11 of one of the 1785-BCM modules are connected to the DH+ network.
2 Terminals 15, 16, and 17 are connected between the 1785-BCM modules in the backup system; in addition,
terminals 15, 16 and 17 of one of the 1785-BCM modules are connected to a Remote I/O adapter module.
High Speed Serial Link
Customer Relay
From Controller
From Controller
1
Sh
2
1
2
1
Sh
2
1
Sh
2
1
Sh
2
1
Sh
2
Not Used
Not Used
Not Used
17979
1
To Network
Data Highway Plus
2
To Remote I/O
Remote I/O at 57.6
kbaud – scanner mode