Rockwell Automation 8520 9/Series CNC Integration Maintenance Manual Documentation Set - Manual (Page 592)

Section 10B
9/Series Adapter Modules for
1771 and 1746 I/O Devices
10B-3
Different types of I/O devices can have the same node address, but devices
of the same type must each have a unique node address. Each 1771 I/O
ring adapter is assigned a unique node address in the I/O assignment file of
ODS. This address corresponds to a switch setting on the device itself. Up
to 16 addresses are available. Figure 10B.2 shows the location of the node
address switch assembly on the 1771 I/O ring module.
Figure 10B.2
1771 I/O Ring Adapter Switch Assembly Locations
S1 S2
S3
O
PE
N
1
2
3
4
5
6
7
8
OFF ON
11343-I
Important: Switch assemblies S1 and S2 indicate which slots in the I/O
chassis have modules installed and operating. Refer to the Allen-Bradley
1771 I/O Ring Adapter Module Product Data Sheet, publication
8500-4.5.1, for additional information on this module.
Set switch assembly S3 to correspond to the node address as shown in
Table 10B.B.
Important: Switch numbers 7 and 8 of switch assembly S3 are not used.
Their position should not be altered.
10B.1.2
1771 I/O Ring Adapter Node
Address Setting