Allen-Bradley Rockwell Automation 1734-AENT Instruction Manual

POINT I/O
EtherNet/IP
Adapter Module
1734-AENT
User Manual

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 Rockwell Automation 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, Rockwell Automation
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 Rockwell Automation 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:
Allen-Bradley, ControlLogix, and POINT I/O are trademarks of Rockwell Automation.
Ethernet is a trademark of Digital Equipment Corporation, Intel, and Xerox Corporation.
RSLinx is a trademark of Rockwell Software.
Windows NT is a trademark of Microsoft Corporation.
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.

1Publication 1734-UM011A-EN-P - February 2004
Preface
What this Preface Contains
This preface describes how to use this manual. The following table lists where
to find specific information within this chapter.
Who Should Use
This Manual
This manual is intended for control engineers and technicians who are
installing, configuring, and maintaining an EtherNet/IP control system that
communicates with POINT I/O through a 1734-AENT adapter. We assume
you have a good understanding of Ethernet and the TCP/IP protocol.
Common Techniques
Used in This Manual
The following conventions are used throughout this manual:
•Numbered lists provide sequential steps.
•Bulleted lists provide information, not procedural steps.
•Information in bold text identifies menu windows, screen options,
screen names, or areas of the screen, such as dialog boxes, status bars,
radio buttons, and parameters.
For information about See page
Who Should Use This Manual P-1
Common Techniques Used in This Manual P-1
How To Use This Manual P-2
About the Example Applications P-2
System Components P-3
Where to Find More Information P-4
Terminology P-6
ATTENTION You must use Series C POINT I/O modules with the
1734-AENT adapter. Series A or B POINT I/O
modules will not work with this adapter.
The screen captures shown in this manual are pictures
of the software’s actual screens.

Publication 1734-UM011A-EN-P - February 2004
Preface 2
How To Use This Manual
This manual contains an overview of the 1734-AENT adapter. It describes
how to install and configure the adapter, and provides examples showing how
to use the adapter to communicate with POINT I/O over an EtherNet/IP
network.
About the Example Applications
This manual presents two example applications that demonstrate the
procedures for configuring and communicating with POINT I/O using the
1734-AENT adapter. The example applications are intended as building blocks
to help you get your own system up and running. We recommend that you set
up and run the example applications and use them as guides.
Here is the type of system you’ll be setting up:
TIP This symbol identifies helpful tips.
Local
Chassis
POINT I/O
Logix5555
Controller (slot 1)
1756-ENBT
10.88.70.4 (slot 3)
Data
Switch
10.88.70.26
Programming
Terminal
Slot 0 1 2 3
1734-AENT
10.88.70.2
Slot 0 1 2 3 4
31393-M

Publication 1734-UM011A-EN-P - February 2004
Preface 3
System Components
We used the following components for the example applications. You will
need the same or similar components to set up your own control system using
PONT I/O on EtherNet/IP.
Quantity Product Name Catalog Number Part Number
Hardware
1 POINT I/O EtherNet/IP Adapter 1734-AENT
1 POINT I/O 24V dc Sink Output Module 1734-OV4E/C
1 POINT I/O Relay Output Module 1734-OW2/C
1 DIN Rail 199-DR1 or equivalent
1 ControlLogix chassis 1756-A4, (or -A7, -A13, -A17)
1 ControlLogix power supply 1756-PA72, (or -PB72)
1 Logix5555 controller 1756-L55
1 ControlLogix EtherNet/IP Bridge Module 1756-ENBT
1 Personal computer that supports
RSLogix 5000 software Any appropriate model running Windows NT 4.0, Service Pack 6A or higher
1 Ethernet switch Refer to manufacturer’s specifications
1 24V dc power supply 1734-EP24DC
Associated media and connectors as needed
Software
1 RSLinx communications software,
V2.31.00 or higher 9355-WAB, -WABOEM, -WABC
1 RSLogix 5000 programming software,
V11.11 or higher 9324-RLD300ENE

Publication 1734-UM011A-EN-P - February 2004
Preface 4
Where to Find
More Information
Refer to the following Rockwell publications as needed for additional help
when setting up and using your EtherNet/IP network.
For information about See this publication Publication number
Using EtherNet/IP for industrial control EtherNet/IP Performance and Application Guide ENET-AP001
EtherNet/IP media EtherNet/IP Media Planning and Installation Guide ENET-IN001
Ethernet communication interface
modules Ethernet Communication Interface Module Installation
Instructions 1756-5.3
Ethernet Communication Interface Module User Manual 1756-6.5.1
Ethernet Communication Interface Module Installation
Instructions 1756-IN053
Ethernet Communication Interface Module User Manual 1756-UM051
Ethernet Communication Interface Module Release Notes 1756-RN053
ControlLogix chassis ControlLogix Chassis Installation instructions 1756-IN080 (Series B)
ControlLogix power supplies ControlLogix Power Supplies Installation Instructions 1756-5.67 (PA72/PB72)
1756-5.78 (PA75/PB75)
Logix5555 programmable controllers Logix5555 Controller User Manual 1756-UM523
SoftLogix5800 Controller SoftLogix5800 User Manual 1789-UM002 (L10, L30, L60)
1789-UM001 (SL5, SL51, SL52)
ControlLogixEtherNet/IPbridgemodule
with firmware version 2.3 or higher ControlLogix EtherNet/IP Bridge Module Installation Instructions 1756-IN019
ControlLogix EtherNet/IP Bridge Module User Manual 1756-UM050
RSLogix 5000 programming software Getting Results with RSLogix 5000, version 3.2.1 or higher 9399-RLD300GR
RSLinx communications software RSLinx Lite User’s Guide 9399-WAB32LUG
1734-AENT Adapter POINT I/O EtherNet/IP Adapter Installation Instructions 1734-IN590
POINT I/O DeviceNet Adapter POINT I/O Quick Start 1734-QS001
POINT I/O digital and analog modules
and PointBLOCK I/O modules POINT I/O Digital and Analog Modules and PointBLOCK I/O Modules User Manual 1734-UM001
POINT I/O input and output modules POINT I/O Technical Data 1734-TD002
POINT I/O interface modules POINT I/O RS-232 ASCII Module User Manual 1734-UM009
POINT I/O RS-232 ASCII Module Installation Instructions 1734-IN588
POINT I/O expansion power supply POINT I/O 24V dc Expansion Power Supply Installation
Instructions 1734-IN058
POINT I/O field potential distributor POINT I/O Field Potential Distributor Installation Instructions 1734-IN059
POINT I/O input modules POINT I/O 120V ac Input Module Installation Instructions 1734-IN010
POINT I/O Input Module Installation Instructions 1734-IN051
POINT I/O input analog modules POINT I/O 2-Input Analog Module Installation Instructions 1734-IN053
POINT I/O 2 Voltage Input Analog Module Installation Instructions 1734-IN001
POINT I/O encoders/counter modules POINT I/O Encoders/Counter Module User Manual 1734-UM006
POINT I/O 5V Encoders/Counter Module Installation Instructions 1734-IN005
POINT I/O 24V Encoders/Counter Module Installation Instructions 1734-IN006

Publication 1734-UM011A-EN-P - February 2004
Preface 5
POINT I/O 22V ac input module POINT I/O 220V ac Input Module Installation Instructions 1734-IN008
POINT I/O RTD input module POINT I/O RTD Input Module Installation Instructions 1734-IN012
POINT I/O isolated termocouple input
module POINT I/O Isolated Thermocouple Input Module 1734-IN011
POINT I/O termocouple and RTD input
module Thermocouple and RTD Input Module User Manual 1734-UM004
POINT I/O IV2 and IV4 input module POINT I/O Input Module Installation Instructions 1734-IN052
POINT I/O 120/220V ac Output module POINT I/O 120/220V ac Output Module Installation Instructions 1734-IN009
POINT I/O protected output module POINT I/O Protected Output Module Installation Instructions 1734-IN056
POINT I/O Protected Output Module Installation Instructions
(OB2EP) 1734-IN586
POINTI/Ocurrent outputanalog module POINT I/O 2 Current Output Analog Module Installation
Instructions 1734-IN054
POINT I/O voltage output analog
module POINT I/O 2 Voltage Output Analog Module Installation Instructions 1734-IN002
POINT I/O protected sink output module POINT I/O Protected Sink Output Module Installation Instructions 1734-IN585
POINT I/O 2 relay output module POINT I/O 2 Relay Output Module Installation Instructions (OX2) 1734-IN587
POINT I/O 2 Relay Output Module Installation Instructions (OW2) 1734-IN055
POINT I/O synchronous serial interface
absolute encoder module POINT I/O Synchronous Serial Interface Absolute Encoder Module 1734-UM007
POINT I/O cold junction compensation
wiring base assembly POINT I/O Cold Junction Compensation Wiring Base Assembly 1734-IN583
POINT I/O wiring base assembly POINT I/O Wiring Base Assembly Installation Instructions 1734--IN013
Very high speed counter module POINT I/O 24V dc Very High Speed Counter Module 1734-IN003
POINT I/O 5V dc Very High Speed Counter Module 1734-IN004
Very High Speed Counter Module User Manual 1734-UM003
RSLinx RSLinx Getting Results Guide LINX-GR001
For information about See this publication Publication number
TIP Many of the above publications are available online from
The Automation Bookstore and Manuals On-line:
http://www.theautomationbookstore.com
http://www.ab.com/manuals/.
TIP Rockwell Software products contain extensive tutorials and
help screens. We recommend that you use the tutorials and
help screens to learn about these products.
For more information about Rockwell Software products,
visit the Rockwell Software internet site:
http://www.software.rockwell.com.

Publication 1734-UM011A-EN-P - February 2004
Preface 6
Terminology
Refer to the table below for the meaning of common terms.
This term Means
BootP BootP (Bootstrap Protocol) is a low-level protocol that provides
configurations to other nodes on a TCP/IP network. BootP
configuration files let you automatically assign IP addresses to an
Ethernet module (you can also obtain Subnet masks and gateway
addresses from BootP).
bridge A node between two similar communication subnets where protocol
translation is minimal.
CIP Control and Information Protocol, the EtherNet/IP application layer
uses the “producer/consumer” networking model. In this model one
producer broadcasts (multicasts) the data once to all the consumers.
All consumers see the data simultaneously and may choose whether
to consume (receive) the data or not. Delivery time is consistent, no
matter how many consumers there are.
connection The communication mechanism from the controller to another
module in the control system, usually used to exchange I/O data.
consumer A destination device in the CIP networking model. See CIP.
CSMA/CD Carrier Sense Multiple Access/Collision Detection is the access
method used in Ethernet. Whena device wants to gain accessto the
network, it checks to see if the network is quiet (senses the carrier).
If it is not, it waits a random amount of time before retrying. If the
network is quiet and twodevices access the line at exactly the same
time, their signals collide. When the collision is detected, they both
back off and each waits a random amount of time before retrying.
determinism Theabilitytopredictwheninformationwillbedelivered.Importantin
time critical applications.
DHCP The Dynamic Host Configuration Protocol is an Internet protocol,
similar to BootP,for automating the configuration of computers that
use TCP/IP. DHCP can be used to automatically assign IP addresses,
todeliverIPstackconfigurationparameters,suchasthesubnetmask
and default router, and to provide other configuration information,
such as the addresses for printer, time and news servers.
The 1734-AENT factory default is DHCP enabled. Upon powerup, the
module sends a message containing its hardware address to any
DHCP server on the network. The server(s) replies by sending a
message with an appropriate IPaddress for the adapter. The adapter
responds by acknowledging to a server that it will use the offered IP
address.
DNS The Domain Name System is a hierarchical, distributed method of
organizing the name space of theInternet. The DNS administratively
groupshosts into ahierarchy of authoritythat allows addressingand
other information to be widely distributed and maintained. A big
advantage to the DNS is that using it eliminates dependence on a
centrally-maintained file that maps host names to addresses.
Ethernet A physical layer standard using Carrier Sense Multiple Access with
Collision Detection (CSMA/CD) methods.
EtherNet/IP Ethernet Industrial Protocol applies a common application layer (CIP)
over Ethernet by encapsulating messages in TCP/UDP/IP.

Publication 1734-UM011A-EN-P - February 2004
Preface 7
Ethernet network A local area network designed for the high-speed exchange of
information between computers and related devices.
explicit messaging Non-time critical messaging used for device configuration and data
collection,suchasdownloadingprogramsor peer-to-peermessaging
between two PLCs.
full duplex A mode of communication that allows a device to send and receive
information at the same time, effectively doubling the bandwidth.
fully qualified
domain name A Fully Qualified Domain Name (FQDN) is a domain name that includes all higher level domains relevantto the entity named. If you
think of the DNS as a tree-structure with each node having its own
label,a FullyQualifiedDomainNameforaspecificnode wouldbeits
labelfollowed bythelabelsofall theother nodesbetween itandthe
root of the tree. For example, for a host, a FQDN would include the
string that identifies the particular host, plus all domains of which
the host is a part, up to and including the top-level domain (the root
domain is always null). For example, PARIS.NISC.SRI.COM is a Fully
Qualified Domain Name for the host at 192.33.33.109.
gateway A module or set of modules that allows communications between
nodes on dissimilar networks.
hardware address Each Ethernet device has a unique hardware address (sometimes
called a MAC address) that is 48 bits. The address appears as six
digits separated by colons (i.e., xx:xx:xx:xx:xx:xx). Each digit has a
value between 0 and 255 (0x00 to 0xFF). This address is assigned in
the hardware and cannot be changed. The hardware address is
required to identify the device if you are using a BOOTP utility.
host name TheHost Nameis theunique namefor a computerwithin itsdomain.
It's always the first element of a full name, and, with its domain and
top-leveldomainsuffix, createstheuniquenameofthatcomputeron
the Internet. For example, let's say a trading website is
www.trading.com.The HostName is“www”,which isnot uniqueon
the web, but is unique within the trading domain.
The Host Name can also refer to the Fully Qualified Domain Name
(FQDN), or in this example, www.trading.com. Both naming methods
seem to be used interchangeably in various documents. For the
purposes of this document, the Host Name will refer to the FQDN, or
as in this example, www.trading.com.
hub A central connecting device that joins devices together in a star
configuration. Hubs are generally not suitable for use in I/O control
systems,sincetheyaretime criticalapplicationsthat cannottolerate
lost packets.
implicit messaging Real time messaging of I/O data.
IP Internet Protocol that provides the routing mechanism for messages.
Allmessagescontain notonly the addressof thedestination station,
but the address of a destination network, which allows messages to
be sent to multiple networks within an organization or around the
world.
IP address A 32-bit identification number for each node on an Internet Protocol
network. These addresses are represented as four sets of 8-bit
numbers(numbersfrom0to255),withdecimalsbetweenthem.Each
node on the network must have a unique IP address.
This term Means

Publication 1734-UM011A-EN-P - February 2004
Preface 8
latency The time between initiating a request for data and the beginning of
the actual data transfer.
multicast In the CIP producer/consumer model one producer multicasts
(broadcasts) the data once to all the consumers.
producer The source of information in the CIP networking model. See CIP.
rack optimized A physical and logical collection of application modules.
subnet mask An extension of the IP address that allows a site to use a single net
ID for multiple networks.
switch A network device that cross connects devices or networksegments.
A switch provides each sender/receiver the full network bandwidth
(2x in full duplex mode), reduces collisions, and increases
determinism.
TCP TheTransport ControlProtocolisamorereliable butslowertransport
protocol than UDP. It is used for explicit (not time critical) messaging
in EtherNet/IP.
TCP/IP The Transmission Control Protocol/Internet Protocol is a
transport-layer protocol (TCP) and a network-layer protocol (IP)
commonly used for communication within networks and across
internetworks.
transaction An exchange of request and data and response and data
.
UDP The User Datagram Protocol is a transport protocol that provides a
very simple but fast capability to send datagrams between two
devices. It is used for I/O (implicit) messaging in EtherNet/IP.
This term Means

iPublication 1734-UM011A-EN-P - February 2004
Table of Contents
Chapter 1
About the 1734-AENT Adapter
What This Chapter Contains. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1--1
Important Adapter Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . 1--2
Set the Chassis Size . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1--2
Adapter replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1--2
Empty Slots and RIUP Situations. . . . . . . . . . . . . . . . . . . . . . . . 1--3
Power Up a System For the First Time . . . . . . . . . . . . . . . . . . . 1--4
Adapter Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1--4
Hardware/Software Compatibility . . . . . . . . . . . . . . . . . . . . . . . . . . 1--5
What the Adapter Does. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1--5
Use of the Common Industrial Protocol (CIP) . . . . . . . . . . . . . . . . 1--5
Understand the Producer/Consumer Model . . . . . . . . . . . . . . . . . . 1--6
Specify the Requested Packet Interval (RPI) . . . . . . . . . . . . . . . . . . 1--6
Support of Rack Optimized and Direct Connections . . . . . . . . . . . 1--6
Mix Rack Optimized and Direct Connections. . . . . . . . . . . . . . 1--7
What’s Next? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1--8
Chapter 2
Install the 1734-AENT Adapter
What This Chapter Contains. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2--1
Identify Module Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2--2
Mount the Adapter on a DIN Rail Before Installing Modules . . . . 2--2
Mount (or Replace) EtherNet/IP Adapter to an Existing System . 2--3
Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2--4
Mounting Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2--5
What’s Next? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2--5
Chapter 3
Configure the 1734-AENT
Adapter for Your
EtherNet/IP Network
What This
Chapter Contains . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3--1
Configuration Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3--2
IP Address . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3--2
Gateway Address . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3--3
Subnet Mask. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3--4
Set the Network Address. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3--6
Use the Rockwell BootP/DHCP Utility. . . . . . . . . . . . . . . . . . . . . . 3--7
Save the Relation List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3--9
Use DHCP Software to Configure Your Adapter . . . . . . . . . . . . . 3--10
What’s Next? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3--10

Publication 1734-UM011A-EN-P - February 2004
Table of Contents ii
Chapter 4
Configure the 1734-AENT for
Direct Connection
in RSLogix 5000
About the Example Application . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4--1
Set Up the Hardware . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4--2
Create the Example Application . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4--3
Configure the I/O . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4--4
Add the Local EtherNet/IP Bridge to the I/O Configuration. 4--4
Add the POINT I/O Adapter to the I/O Configuration. . . . . 4--6
Add the POINT I/O Modules to the I/O Configuration . . . . 4--8
Edit the Controller Tags . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4--13
Create the Ladder Program . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4--14
Download the Program to the Controller. . . . . . . . . . . . . . . . . . . . 4--15
Verify the Module Chassis Size . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4--16
Configure the 1734-AENT with Fixed IP Address . . . . . . . . . . . . 4--18
An Overloaded 1734-AENT. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4--19
Chapter 5
Configure the 1734-AENT for
Direct Connection and
Rack Optimization
in RSLogix 5000
What’s in This Chapter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5--1
Set Up the Hardware . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5--2
Create the Example Application . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5--3
Configure the I/O . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5--4
Add the Local EtherNet/IP Bridge to the I/O Configuration. 5--4
Add the POINT I/O Adapter to the I/O Configuration. . . . . 5--6
Add the POINT I/O Module and Configure
For Direct Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5--8
Add the POINT I/O Module and Configure
For Rack Optimization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5--11
Download the Program to the Controller. . . . . . . . . . . . . . . . . . . . 5--12
Verify the Module Chassis Size . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5--13
Access Module Data via the 1734-AENT Adapter . . . . . . . . . . . . 5--16
Chapter 6
LED Status Indicators
Interpret the Status Indicators. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6--1
Chapter 7
Safety Approvals
and Specifications
Safety Approvals. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7--1
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7--2

Publication 1734-UM011A-EN-P - February 2004
Table of Contents iii
Appendix A
1734-AENT Adapter Web Pages
Web Page Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A--1
Diagnostic Information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A--2
Module Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A--3
EDS Files . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A--3
Network Statistics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A--4
Connection Statistics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A--5
Diagnostic Messaging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A--6
Browse Chassis. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A--7
Configuration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A--8
Appendix B
Configure the RSLinx Ethernet
Communication Driver
What This Appendix Contains . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B--1
Install the RSLinx Software. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B--1
Configure the AB_ETH Driver . . . . . . . . . . . . . . . . . . . . . . . . . . . . B--2
Configure the AB_ETH/IP Driver . . . . . . . . . . . . . . . . . . . . . . . . . B--4
Appendix C
1734-POINT I/O
Module/RSLogix 5000
Controller Tag Reference
1734 POINT I/O Catalog Numbers . . . . . . . . . . . . . . . . . . . . . . . . C--1
Valid Number Ranges for RSLogix 5000 Data Types . . . . . . . . . . . C--2
Discrete 2 POINT Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C--3
Discrete 4 POINT Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C--4
Discrete 2 POINT Output – Without Diagnostic Status. . . . . . . . . C--5
Discrete 2 POINT Output – With Over Load and Open Load
Diagnostic Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C--6
Discrete 2 POINT Output – With Over Load Diagnostic Status. . C--7
Discrete 4 POINT Output – With Over Load and Open Load
Diagnostic Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C--8
Discrete 4 POINT Output – With Over Load Diagnostic Status. . C--9
Analog 2 Channel Input. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C--10
Analog 2 Channel Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C--19
Specialty I/O . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C--23
Appendix D
1734-AENT Quick Start
What’s In This Appendix?. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D--1
Necessary Pre-requisites . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D--1
Configure the 1734-AENT POINT I/O Adapter. . . . . . . . . . . . . . D--2
Enter Adapter Properties . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D--3
Add Another Module Under the Adapter . . . . . . . . . . . . . . . . . D--4
Configure 1734 POINT I/O Modules . . . . . . . . . . . . . . . . . . . . . . . D--4
Configure an Ethernet Driver in RSLinx. . . . . . . . . . . . . . . . . . . . . D--8
Launch RSLinx Software. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D--8
Adding the AB_ETHIP-1 (EtherNet/IP) Driver . . . . . . . . . . D--10

Publication 1734-UM011A-EN-P - February 2004
Table of Contents iv

1Publication 1734-UM011A-EN-P - February 2004
Chapter 1
About the 1734-AENT Adapter
What This
Chapter Contains
This chapter provides an overview of the 1734-AENT POINT I/O
EtherNet/IP adapter, its primary features, and how to use it. You will need to
understand the concepts discussed in this chapter to configure your adapter
and use it in an EtherNet/IP control system. The following table lists where to
find specific information in this chapter.
For information about See page
Important Adapter Considerations 1-2
Set the Chassis Size 1-2
Adapter replacement 1-2
Empty Slots and RIUP Situations 1-3
Power Up a System For the First Time 1-4
Adapter Features 1-4
Hardware/Software Compatibility 1-5
What the Adapter Does 1-5
Use of the Common Industrial Protocol (CIP) 1-5
Understand the Producer/Consumer Model 1-6
Specify the Requested Packet Interval (RPI) 1-6
Support of Rack Optimized and Direct Connections 1-6
Mix Rack Optimized and Direct Connections 1-7
ATTENTION You must use Series C POINT I/O modules with the
1734-AENT adapter. Series A or B POINT I/O
modules will not work with this adapter.

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1-2 About the 1734-AENT Adapter
Important Adapter
Considerations
Before you begin using your 1734-AENT, please note the following important
considerations.
Set the Chassis Size
The 1734-AENT POINT I/O adapter for EtherNet/IP requires its chassis
size to be configured before any I/O connections can be made. The default
setting for the chassis size is 1 slot which represents the adapter by itself. You
must set the chassis size to a number equaling 1 slot for the adapter plus 1 slot
for each I/O module present in the adapter’s backplane (e.g., the adapter plus
4 I/O modules will use a chassis size of 5). The adapter stores this chassis size
setting in non-volatile storage. When the adapter’s non-volatile chassis size
does not match the actual number of modules present on its backplane, the
adapter will not make any I/O connections and the following error will occur.
Adapter replacement
It is important to note that during a connection request from the controller,
the chassis size setting for a 1734-AENT is not communicated to the adapter.
This chassis size must always be set using a separate operation. This includes
situations when an adapter is being replaced. The adapter will not make any
I/O connections until it has been configured with the appropriate chassis size.

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About the 1734-AENT Adapter 1-3
Empty Slots and RIUP Situations
The POINT I/O system does not have the ability to detect an empty terminal
base. Because of this, there are numerous situations in which you can
potentially configure a system that is unusable or one that exercises unintended
control. In an attempt to address these situations, you must observe the
following rules for POINT I/O system construction and the removal and
reinsertion of modules.
•A correct POINT I/O system does not have any empty terminal bases.
•After power up, the adapter will not run any I/O until the number of
modules comprising the “chassis” equals the stored “chassis size”.
Because the adapter cannot detect empty terminal bases, it cannot
assume any safe operation until there is a “match” between the number
of modules indicating their presence in the chassis and what the adapter
has saved in non-volatile memory. Actual module identification (i.e.,
electronic keying) will be done when connection establishment requests
are received from the controller(s).
•A module removed under power will not disrupt operationof the
other I/O modules. When a module is removed, the adapter will
determine what has changed. Whenever a module with an active
connection is removed from the POINT I/O system, the adapter will
indicate this by flashing the PointBus Status LED red and report a
minor recoverable fault.
•If more than one contiguous module is removed under power,
connectionstoallmodules inthecontiguousmissingmodulesetwill
be disallowed until all modules are replaced. Because the adapter
cannot detect an empty base, it does not know the physical positioning
of the modules until all the missing modules are replaced.
•If a module separating two sets of contiguous missing modules is
removed, the two sets merge into a single set. All the modules must
be replaced before connections are permitted to any module in the set.
•If modules of different types are removed and returned to the wrong
locations, attempts to connect to these modules will fail during
verification of the electronic ID (providing that keying has not been
disabled).
•If modules of the same type are removed and returned to the wrong
locations, they will accept connections from the controller(s) and be
reconfigured with the correct data once they pass their electronic keying
check.
•The above mentioned removal and return situations exist whether
the system is under power or not. If the system is under power, the
situation arises immediately. If the system is not under power, the
situation arises in the next power cycle.

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1-4 About the 1734-AENT Adapter
Power Up a System For the First Time
When POINT I/O is powered for the first time, the adapter must assign
addresses to every module in the backplane. POINT I/O modules all ship
configured at the same address. Therefore, at first power up, it is expected that
all but one module on the backplane will exhibit a solid red Module Status
LED. One by one the adapter will reset these modules and address them
appropriately. The amount of time that this operation takes is proportional to
the size of your POINT I/O system.
Adapter Features
The 1734-AENT adapter’s features include:
•use of EtherNet/IP messages encapsulated within standard
TCP/UDP/IP protocol
•common application layer with ControlNet and DeviceNet
•interfacing via Category 5 rated twisted pair cable
•half/full duplex 10 Mbit or 100 Mbit operation
•DIN rail mounting
•communication to and from other POINT I/O modules on the same
DIN rail
•communication supported by RSLinx software
•IP address assigned via standard BootP or DHCP tools
•I/O configuration via RSLogix 5000 software
•no network scheduling required
•no routing tables required
•supports connections from multiple controllers simultaneously

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About the 1734-AENT Adapter 1-5
Hardware/Software
Compatibility
The 1734-AENT adapter and the applications described in this manual are
compatible with the following firmware versions and software releases.
Contact Rockwell Automation if you need software or firmware upgrades to
use this equipment.
What the Adapter Does
The 1734-AENT adapter performs two primary tasks:
1. Control of real time I/O data (also known as “implicit messaging”). The
1734-AENT adapter serves as a bridge between POINT I/O modules
and the network.
2. Support of messaging data for configuration and programming
information (also known as “explicit messaging.”).
Use of the Common
Industrial Protocol (CIP)
The 1734-AENT adapter uses the Common Industrial Protocol (CIP). CIP is
the application layer protocol specified for EtherNet/IP, the Ethernet
Industrial Protocol, as well as for ControlNet and DeviceNet. It is a
message-based protocol that implements a relative path to send a message
from the “producing” device in a system to the “consuming” devices.
The producing device contains the path information that steers the message
along the proper route to reach its consumers. Since the producing device
holds this information, other devices along the path simply pass this
information; they do not need to store it.
Product Firmware Version/
Software Release
1734-AENT Adapter 1.xx or higher
1756-ENBT 2.3 or higher
Logix 5555 Controller 11 or higher
RSLogix 5000 software 11.11 or higher
RSLinx software 2.3.1 or higher
L
5
5
5
5EtherNet/IP Network
E
N
B
T
Other
Network
Devices
A
E
N
T
POINT
I/O E
N
B
T
ControlLogix
I/O

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1-6 About the 1734-AENT Adapter
This has two significant benefits:
•You do not need to configure routing tables in the bridging modules,
which greatly simplifies maintenance and module replacement.
•You maintain full control over the route taken by each message, which
enables you to select alternative paths for the same end device.
Understand the
Producer/Consumer Model
The CIP “producer/consumer” networking model replaces the old
source/destination (“master/slave”) model. The producer/consumer model
reduces network traffic and increases speed of transmission. In traditional I/O
systems, controllers poll input modules to obtain their input status. In the CIP
system, input modules are not polled by a controller. Instead, they produce
(“multicast”) their data either upon a change of state (COS) or periodically.
The frequency of update depends upon the options chosen during
configuration and where on the network the input module resides. The input
module, therefore, is a producer of input data and the controller is a consumer
of the data.
The controller can also produce data for other controllers to consume. The
produced and consumed data is accessible by multiple controllers and other
devices over the EtherNet/IP network. This data exchange conforms to the
producer/consumer model.
Specify the Requested
Packet Interval (RPI)
The RPI is the update rate specified for a particular piece of data on the
network. The RPI can be specified for the adapter and include all of the I/O
modules communicating through it (using a rack optimized connection) or
specified for a particular module (using direct connection). When you add a
module or an adapter to the I/O configuration of a controller, you must enter
the RPI as a parameter. This value specifies how often to produce the data for
that device. For example, if you specify an RPI of 50 ms, it means that every
50ms the device should send its data to the controller or the controller should
send its data to the device.
RPIs are only used for devices that exchange data. For example, a
ControlLogix EtherNet/IP bridge module in the same chassis as the controller
does not require an RPI because it is not a data-producing member of the
system; it is used only as a bridge to remote racks.
Support of Rack Optimized
and Direct Connections
The 1734-AENT adapter supports both direct and rack optimized
connections. A direct connection is a real-time data transfer link between the
controller and whatever module occupies the slot that the configuration data
references. Direct connection messaging occurs at a cyclic rate specified by the
RPI during configuration. A rack optimized connection is a grouping of data