Allen-Bradley ControlLogix 1756-ENBT User manual

ControlLogix
Ethernet Bridge
Module
1756-ENBT
User Manual
AB Parts

Important User Information
Because of the variety of uses for the products described in this
publication, those responsible for the application and use of these
products must satisfy themselves that all necessary steps have been
taken to assure that each application and use meets all performance
and safety requirements, including any applicable laws, regulations,
codes and standards. In no event will Allen-Bradley be responsible or
liable for indirect or consequential damage resulting from the use or
application of these products.
Any illustrations, charts, sample programs, and layout examples
shown in this publication are intended solely for purposes of
example. Since there are many variables and requirements associated
with any particular installation, Allen-Bradley does not assume
responsibility or liability (to include intellectual property liability) for
actual use based upon the examples shown in this publication.
Allen-Bradley publication SGI-1.1, Safety Guidelines for the
Application, Installation and Maintenance of Solid-State Control
(available from your local Allen-Bradley office), describes some
important differences between solid-state equipment and
electromechanical devices that should be taken into consideration
when applying products such as those described in this publication.
Reproduction of the contents of this copyrighted publication, in whole
or part, without written permission of Rockwell Automation, is
prohibited.
Throughout this publication, notes may be used to make you aware of
safety considerations. The following annotations and their
accompanying statements help you to identify a potential hazard,
avoid a potential hazard, and recognize the consequences of a
potential hazard:
WARNING
!
Identifies information about practices or
circumstances that can cause an explosion in a
hazardous environment, which may lead to personal
injury or death, property damage, or economic loss.
ATTENTION
!
Identifies information about practices or
circumstances that can lead to personal injury or
death, property damage, or economic loss.
IMPORTANT Identifies information that is critical for successful
application and understanding of the product.

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Support
Before you contact Rockwell Automation for technical assistance, we
suggest you please review the troubleshooting information contained
in this publication first.
If the problem persists, call your local Rockwell Automation
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1Publication 1756-UM050A-EN-P - December 2001
Preface
About This User Manual
What this Preface Contains
This preface describes how to use this manual. The following table
describes what this preface contains and where to find specific
information.
Who Should Use
This Manual
This manual is intended for control engineers and technicians who are
installing, programming, and maintaining a control system that
communicates on an EtherNet/IP network through a 1756-ENBT
Bridge.
We assume you have a good understanding of Ethernet and the
(TCP/IP) protocol. This user manual contains a brief description of
Ethernet and TCP/IP in Chapter 3.
For information about See page
Who Should Use This Manual P-1
Common Techniques Used in This Manual P-2
How To Use This Manual P-2
About the Example Applications P-3
System Components P-4
Where to Find More Information P-5
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Publication 1756-UM050A-EN-P - December 2001
P-2 About This User Manual
Common Techniques
Used in This Manual
The following conventions are used throughout this manual:
•Bulleted lists provide information, not procedural steps.
•Numbered lists provide sequential steps.
•Information in bold contained within text identifies menu
windows, or screen options, screen names and areas of the
screen, such as dialog boxes, status bars, radio buttons and
parameters.
How To Use This Manual
This manual provides an overview of the 1756-ENBT module, as well
as general information about Ethernet. It describes how to install and
configure the module, and provides four example applications
showing how to use the module to communicate over EtherNet/IP.
The example applications are intended as building blocks to help you
get your own network up and running. We recommend that you set
up and run the example applications and use them as a guide for
setting up your own system.
TIP This symbol identifies helpful tips.
Screen captures are pictures of the software’s
actual screens. The names of screen buttons and
fields are often in bold in the text of a
procedure. Pictures of keys represent the actual
keys you press.

Publication 1756-UM050A-EN-P - December 2001
About This User Manual P-3
About the Example Applications
The example applications presented in this manual are as follows:
•Using Rack Optimized I/O (chapter 5)
•Using Analog I/O with Direct Connection (chapter 6)
•Using Produced and Consumed tags (chapter 7)
•Communicating with FLEX I/O (chapter 8)
Here’s an example of the type of system you’ll be creating:
Data
Slot 0 1 Slot 0 1 2 3
Switch
Programming
130.130.130.1
Terminal
Local
Chassis Remote
Chassis
Logix5550
Controller 1756-ENBT
130.130.130.2 1756-ENBT
130.130.130.3
1756-IB16I
Digital Input
1756-OB16I
Digital Output
1756-OF8
Analog Output
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P-4 About This User Manual
System Components
We used the following components for the example applications:
Quantity Product Name Catalog Number
Hardware
2 ControlLogix Chassis 1756-A4, (or -A7, -A13, -A13, -A17)
2 ControlLogix Power Supply 1756-PA72, (or -PB72)
2 ControlLogix EtherNet/IP Bridge Module 1756-ENBT
2 Logix5550 Controller 1756-L1
1 ControlLogix Analog Output Module 1756-OF8
1 ControlLogix Digital Input Module 1756-IB16I
1 ControlLogix Digital Output Module 1756-0B16I
1 FLEX I/O EtherNet/IP Adapter 1794-AENT
1 FLEX I/O Digital Input Module 1794-IB16
1 FLEX I/O Digital Output Module 1794-OB16
1 Personal computer that supports RSLogix
5000 software Any appropriate model running Windows NT 4.0, Service Pack 5 or
higher
1 Ethernet switch Refer to manufacturer’s
specifications
Associated media and connectorsas needed
Software
1 RSLinx V2.30 9355-WAB, -WABOEM, -WABC
1 RSLogix 5000 programming software V8.1 9324-RLD300ENE

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About This User Manual P-5
Where to Find More
Information Refer to the following Rockwell publications as needed for additional
help when setting up and using your network.
For information about See this publication Publication number
Using Ethernet for industrial control EtherNet/IP Performance and Application Guide ENET-AP001
EtherNet/IP media EtherNet/IP Media Planningand Installation Guide ENET-IN001
1756-ENBT module ControlLogix EtherNet/IP Bridge Module Installation Instructions 1756-IN019
ControlLogix chassis ControlLogix Chassis Installation instructions 1756-IN080
ControlLogix power supplies ControlLogix Power Supplies Installation Instructions 1756-5.67 (PA72/PB72)
1756-5.78 (PA75/PB75)
Logix5550 programmable controllers Logix5550 Controller User Manual 1756-UM012
ControlLogix analog I/O modules ControlLogix Analog I/O Users Manual 1756-6.5.9
ControlLogix digital I/O modules ControlLogix Digital I/O Users Manual 1756-UM058
FLEX I/O EtherNet/IP adapter FLEX I/O EtherNet/IP Adapter Installation Instructions 1794-IN082
FLEX I/O EtherNet/IP Adapter User Manual 1794-UM006
FLEX I/O input and output modules FLEX I/O and FLEX Integra Technical Data Manual 1794-2.1
RSLogix 5000 programming software(1) Getting Results with RSLogix5000 LG5000-GR001
RSLinx communications software(1) RSLinx Lite User’s Guide 9399-UM007
(1) See also the tutorials and Help menusprovided with this software.
TIP Many of the above publications are available online
from the Automation Bookstore:
http://www.theautomationbookstore.com.
TIP Rockwell Software products are provided with
extensive tutorials and online Help. We recommend
that you use the tutorials and Help menus to learn
about these products.
For more information about Rockwell Software
products, visit the Rockwell Software internet site:
http://www.software.rockwell.com.
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P-6 About This User Manual
Notes: