Rockwell Automation 1769-SM2 Compact I/O DSI/Modbus Communication Module - Manual (Page 27)

Installing the Module 2-5
The 1769-SM2 module can be attached to adjacent controller modules
before or after mounting. For mounting instructions, see
Panel
Mounting on page 2-6 or DIN Rail Mounting on page 2-8 . To work with
a system that is already mounted, see Replacing the Module within a
System on page 2-9 .
Figure 2.2 and the following procedure describes how to assemble the
Compact I/O system.
Figure 2.2 Assembling 1769-SM2 Module to Compact I/O System
1. Disconnect power.
2. Check that the bus lever (A) of the 1769-SM2 module is in the
unlocked (fully right) position.
3. Use the upper and lower tongue-and-groove slots (B) to secure the
modules together.
4. Move the 1769-SM2 module back along the tongue-and-groove slots
until the bus connectors (C) line up with each other.
5. Use your fingers or a small screwdriver to push the bus lever back
slightly to clear the positioning tab (D).
6. Move the 1769-SM2 module’s bus lever fully to the left (E) until it
clicks. Ensure it is locked firmly in place.
Assembling the Module to the Controller
G
F
E
D
B
A
B
C
!
ATTENTION: Risk of equipment damage exists. When attaching the
1769-SM2 module to a Compact I/O system, it is very important that
the bus connectors are securely locked together to ensure proper
electrical connection. Failure to do this may cause an electrical arc,
which can cause personal injury or equipment damage.