Rockwell Automation 8520 9/Series CNC Integration Maintenance Manual Documentation Set - Manual (Page 453)

Section 8
Communication Interface
8-20
into the 9/Series remote I/O connection. These values are then stored on
the control where they are assigned to the remote I/O input PAL flags
($RMI1-$RMI8).
When sending data from the control to a PLC processor, PAL must first
assign values to the remote output flags ($RMO1-$RMO8). The control
passes these output flag values to the PLC processor where they are loaded
into eight input words in the PLC input image table.
Figure 8.14 shows the remote I/O module as it comes mounted to the
component enclosure for 9/290 controls.
Figure 8.14
Remote I/O Module Mounted to the Component Enclosure
Remote I/O Module
(9/290 only)
Mounting the Remote I/O Module to the Component Enclosure
If you ordered the remote I/O module with your 9/290 control, it comes
already assembled and mounted to the component enclosure. If you have
ordered the remote I/O module separately, use this procedure to mount the
remote I/O module to the component enclosure:
1. Remove the parts from the bag
8.9.1
9/290 Remote I/O Module