About The Example Application; Set Up The Example Application - Allen-Bradley ControlLogix User Manual

About the Example Application

Set Up the Example
Application
PLC-5C to PLC-5C Unscheduled Messaging
Over Two ControlNet Networks
In this example you establish communications between two PLC-5C
processors on different ControlNet networks. Two 1756-CNB modules in
the same ControlLogix chassis are used to bridge the networks. The
1756-CNB modules are in slots 1 and 3 and are configured as nodes 1 and 6,
respectively. The application sends an unscheduled PLC-5C Typed Write
message from the PLC-5C processor on ControlNet network #1 (node 11)
to the PLC-5C processor on ControlNet network #2 (node 16).
What you will do

Set Up the Example Application

Create the Example Application
Create the Ladder Program
Download the Program
Test the Example Application
Change your system configuration to that shown below:
1771 I/O Chassis
PLC-5C
(Node 11)
Message
Verify that the node addresses for the 1756-CNB modules are 1 and 6 as
shown.
Verify that the ControlNet node addresses for the PLC-5C processors are
11 and 16 as shown.
ControlLogix Chassis
Slot 1 3
1756-CNB
(Node 1)
ControlNet Network #1 ControlNet Network #2
9
Chapter
See page
9-1
9-2
9-3
9-5
9-6
1771 I/O Chassis
PLC-5C
(Node 16)
Message
1756-CNB
(Node 6)
PC with
1784-KTCX15
Interface
1756-6.5.3 - December 1999