Connecting an expansion module to a base module – Rockwell Automation 1791R-XXXX CompactBlock RIO User Manual
Page 11

CompactBlock Distributed I/O on Remote I/O 11
Publication 1791R-IN001A-EN-P - February 2002
Connecting an Expansion Module to a Base Module
1. Remove the expansion covers from both the base and
expansion modules.
2. Position the expansion block with the proper spacing. See the
illustration below.
3. Mount expansion module using panel or DIN rail mounting, as
described in the previous section.
4. Plug the expansion cable into both the base and expansion
modules.
ATTENTION
!
Expansion blocks should not be installed when
power is applied to the base.
IMPORTANT
Carefully read the section on I/O images for 1791R
base modules starting on page 19 to change
produce and consume data sizes.
Status
Comm
0 1 2 3 4 5 6 7
0 1 2 3 4 5 6 7
CompactBlock
I/O
1791R-8V8P
8 INPUTS / 8 OUTPUTS - DC POWER
Allen-Bradley
Remote I/O
Base Module
Expansion Module
141 mm
5.55 in
41 mm
1.6 in
104 mm
4.09 in
41 mm
1.6 in
30358
25 mm
1 in
Expansion covers