Rockwell Automation 1775-MX_S4A,D17756.3.1 User Manual PLC-3 BACKUP CONC(OR.DU1 - Manual (Page 18)

Installing a Backup System
Chapter 2
2-3
Figure 2.1
Connections for a PLCĆ3 Backup System Using Scanner Backup
To Earth
Ground
Blue
Shield
Clear
To other
I/O Chassis
in the Channel
1 2 9 2
12
8
5
7
10
11
5
13
2
3 3
4 4
6 6
7
7
7
8
1. PLC-3 Processor (Primary)
2. Power Supply (cat. no. 1775-P1)
3. 1771 I/O Chassis (cat. no. 1771-A1B, -A2B, A3B, -A4B)
4. Power Supply (cat. no. 1771-P2)
5. Processor Chassis Power Cable, 6ft. (cat. no. 1775-CAP)
6. I/O Power Cable, 1ft. (cat. no. 1771-CE)
7. Twinaxial Cable (cat. no. 1770-CD) 10,000 ft. Max. Each I/O Channel at 57.6K Baud
8. Terminator (cat. no. 1770-XT) Connect one at each end of the I/O Channel
9. PLC-3 Processor (backup)
10. Backup Cable (cat. no. 1775-CBA, -CBB)
11. Backup Communication Cable (cat.no. 1770-CD)
12. Ground Bus Plate
13. Connection between Power Supply System Common studs
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