Rockwell Automation 1775-MX_S4A,D17756.3.1 User Manual PLC-3 BACKUP CONC(OR.DU1 - Manual (Page 29)

Installing a Backup System
Chapter 2
2-14
Figure 2.12
Connections for Scanner Backup
Primary Processor Backup Processor
Backup cable (see text)
10395
Application: Cable:
Automatic switchover with no switchback 1775ĆCBA
Automatic switchover with controllable switchback 1775ĆCBB
Manual switchover 1775ĆCBB