Allen-Bradley ControlLogix System 1756-L1 User Manual page 219

When to Use This
Procedure
Allen-Bradley HMIs
1
®
Route PLC-5 Messages Between
™
ControlNet Networks
You can use ControlLogix communication modules to route a message
between PLC-5 controllers that are on different networks (i.e., a
remote message)
The following example depicts a ControlLogix chassis with two
1756-CNB modules that route a message from a ControlNet network
to a different ControlNet network.
Message from a PLC-5C on a ControlNet network to
EXAMPLE
a PLC-5C on a different ControlNet network
P
L
C
5
C
C
N
B
ControlNet
node 3
network A
node 2
Message
Publication 1756-UM001E-EN-P - August 2002
12
Chapter
C
N
B
node 5
ControlNet
network B
node 1
P
L
C
5
C