Allen-Bradley ControlLogix User Manual

1756-6.5.3 - December 1999
Chapter 7
PLC-5C to Logix5550 Controller:
Unscheduled Messaging
About the Example Application
This example application sends an unscheduled message from a PLC-5C to
a Logix5550 controller. The PLC-5C is at ControlNet node 11. The
Logix5550 controller is in slot 0 of the ControlLogix chassis and
the1756-CNB module (configured as ControlNet node 1) is in slot 1. The
PLC-5C’s seconds timer (S:23) provides the test data for the message.
Set Up the Example Application
Change your system configuration to that shown below:
• Verify that the Logix5550 controller and the 1756-CNB module are in
slots 0 and 1 as shown.
What you will do See page
Set Up the Example Application 7-1
Create the Example Application 7-2
Create the PLC-5C Program 7-3
Download the PLC-5C Program 7-5
Test the Example Application 7-7
Create the Controller Tags for the Logix5550 Controller 7-8
Download the Logix5550 Program 7-10
Verify the Message 7-11
ControlNet Network
1756-CNB
(Node 1)
PLC-5C
ControlLogix
Chassis
PC with
1784-KTCX15
Interface
Message
Slot 0 1
(Node 11)
1771 I/O
Chassis
Logix 5550
controller

Allen-Bradley ControlLogix Specifications

General

Communication	EtherNet/IP, ControlNet, DeviceNet, DH+
I/O Capacity	Up to 128, 000 I/O points (varies by configuration)
Redundancy	Supported (with specific modules)
Programming Software	Rockwell Automation Studio 5000 Logix Designer
Operating Temperature	0°C to 60°C (32°F to 140°F)
Programming Languages	Ladder Logic, Function Block Diagram, Structured Text, Sequential Function Chart
Modularity	Yes
Certifications	UL, CE
Processor Type	Multiple options available, including standard, safety, and extreme environment processors
Power Supply	Multiple options available, including standard and redundant power supplies with various voltage ranges (e.g., 24V DC, 120/240V AC)