Allen-Bradley GuardLogix 5580 Original Instructions Manual page 31

Subnet Type Line
SNN_1 EtherNet/IP
SNN_2 Backplane None
SNN_3 DeviceNet
SNN_4 Backplane None
SNN_5 EtherNet/IP
You can also choose to map out the entire routable system (perhaps for the
entire plant), and manually assign SNN values to each subnet. The
Studio 5000 Logix Designer application provides a manual entry method for
assigning SNN values to enable this design methodology.
Figure 9 shows an example of how SNNs can be assigned to subnets.
Figure 9 - Example SNN Assignment
1791ES-IB16
1756
Backplane:
SNN_2
SNN Assignment
1769-L36ERMS Ethernet port, 1791ES-IB16, 5069-L320ERS2 Ethernet port A1
SNN 0004_0000_0001 to this port), 1756-EN2T, and 1756-L84ES Ethernet port
1756-L71S, 1756-L84ES backplane port, and 1756-L81ES backplane port
1732DS-IB6, 1732DS-IBSXOBV4
5069-L320ERS2 backplane (Figure 10 shows the assignment of SNN 0001_0000_0004 to this port) and 5069-OBV8S
5069-L320ERS2 Ethernet port A2 (Figure 10
1756-L81ES Ethernet port.
Figure 10 on page 32
GuardLogix 5380 (catalog number 5069-L320ERS2) Controller Organizer
I/O tree.
Rockwell Automation Publication 1756-RM012B-EN-P - April 2018
CIP Safety and Safety Network Numbers
Switch
SNN_1
5069
Backplane:
SNN_4
SNN_3
1732DS-IB6 1732DS-IBSXOBV4
(Figure 10
shows the assignment of SNN 0004_0000_0005 to this port) and 1732ES-IB16 and the
shows how the preceding example relates to the Compact
Chapter 4
Switch
SNN_5
1732ES-IB16
shows the assignment of
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