Installing a backup system chapter 2 – Rockwell Automation 1775-MX_S4A,D17756.3.1 User Manual PLC-3 BACKUP CONC(OR.DU1 User Manual
Page 31
Installing a Backup System
Chapter 2
2-16
Connecting I/O Communication Channels
Figure 2.14 shows the connections when using I/O channel 1.
Figure 2.14
Connections for I/O Communication
To I/O Chassis
Twinaxial Cable
(cat. no. 1770-CD)
Blue
Shield
Clear
Blue
Shield
Clear
Terminator
(cat. no. 1770-XT)
Channel No. 1 Shown
Channel No. 1 Shown
10392
Primary Processor
Backup Processor
(Refer to page 2Ć23)
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