Installation Instructions
ControlLogix EtherNet/IP Bridge Module
Catalog Number 1756-ENBT
Use this document as a guide to install the module. Note that this document
describes hardware installation only. For configuration information, refer to
the EtherNet/IP Modules User Manual, publication number ENET-UM001,
available online at www.rockwellautomation.com/literature.
The following table lists the contents of this document and where to find
specific information.
Topic See Page
Important User InformationI 2
Identify Module Components 7
Prepare the Chassis for Module Installation 8
Determine Module Slot Location 9
Install the Module in the Chassis 10
Remove or Replace the Module (when applicable) 11
Install or Remove the Module Under Power 12
Wire the Ethernet Connector 13
Connect the Module to the EtherNet/IP Network 13
Apply Chassis Power 15
Check Power Supply and Module Status 15
Troubleshoot the Module 16
Where to Find Information on Configuring the Module 17
Specifications 18
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2 ControlLogix EtherNet/IP Bridge Module
I
Important User Information
Solid state equipment has operational characteristics differing from those of
electromechanical equipment. Safety Guidelines for the Application, Installation and
Maintenance of Solid State Controls (Publication SGI-1.1 available from your local Rockwell
Automation sales office or online at http://www.ab.com/manuals/gi) describes some
important differences between solid state equipment and hard-wired electromechanical
devices. Because of this difference, and also because of the wide variety of uses for solid
state equipment, all persons responsible for applying this equipment must satisfy
themselves that each intended application of this equipment is acceptable.
In no event will Rockwell Automation, Inc. be responsible or liable for indirect or
consequential damages resulting from the use or application of this equipment.
The examples and diagrams in this manual are included solely for illustrative purposes.
Because of the many variables and requirements associated with any particular installation,
Rockwell Automation, Inc. cannot assume responsibility or liability for actual use based on
the examples and diagrams.
No patent liability is assumed by Rockwell Automation, Inc. with respect to use of
information, circuits, equipment, or software described in this manual.
Reproduction of the contents of this manual, in whole or in part, without written permission
of Rockwell Automation, Inc. is prohibited.
Throughout this manual, when necessary we use notes to make you aware of safety
considerations.
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.
IMPORTANT
ATTENTION
SHOCK HAZARD
BURN HAZARD
Publication
Identifies information that is critical for successful application and understanding of the
product.
Identifies information about practices or circumstances that can lead to personal injury or
death, property damage, or economic loss. Attentions help you:
• identify a hazard
• avoid a hazard
• recognize the consequence
Labels may be located on or inside the equipment (e.g., drive or motor) to alert people
that dangerous voltage may be present.
Labels may be located on or inside the equipment (e.g., drive or motor) to alert people
that surfaces may be dangerous temperatures.
1756-IN019C-EN-P - November 2004
Environment and Enclosure
ControlLogix EtherNet/IP Bridge Module 3
ATTENTION
This equipment is intended for use in a Pollution Degree 2 industrial environment, in
overvoltage Category II applications (as defined in IEC publication 60664-1), at altitudes
up to 2000 meters without derating.
This equipment is considered Group 1, Class A industrial equipment according to
IEC/CISPR Publication 11. Without appropriate precautions, there may be potential
difficulties ensuring electromagnetic compatibility in other environments due to
conducted as well as radiated disturbance.
This equipment is supplied as "open type" equipment. It must be mounted within an
enclosure that is suitably designed for those specific environmental conditions that will
be present and appropriately designed to prevent personal injury resulting from
accessibility to live parts. The interior of the enclosure must be accessible only by the
use of a tool. Subsequent sections of this publication may contain additional
information regarding specific enclosure type ratings that are required to comply with
certain product safety certifications.
NOTE: See NEMA Standards publication 250 and IEC publication 60529, as applicable,
for explanations of the degrees of protection provided by different types of enclosure.
Also, see the appropriate sections in this publication, as well as the Allen-Bradley
publication 1770-4.1 ("Industrial Automation Wiring and Grounding Guidelines"), for
additional installation requirements pertaining to this equipment.
Prevent Electrostatic Discharge
ATTENTION
This equipment is sensitive to electrostatic discharge, which can cause
internal damage and affect normal operation. Follow these guidelines when
you handle this equipment:
• Touch a grounded object to discharge potential static.
• Wear an approved grounding wriststrap.
• Do not touch connectors or pins on component boards.
• Do not touch circuit components inside the equipment.
• If available, use a static-safe workstation.
• When not in use, store the equipment in appropriate
static-safe packaging.
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4 ControlLogix EtherNet/IP Bridge Module
Removal and Insertion Under Power
WARNING
When you insert or remove the module while backplane
power is on, an electrical arc can occur. This could cause
an explosion in hazardous location installations.
Be sure that power is removed or the area is nonhazardous before proceeding.
Repeated electrical arcing causes excessive wear to contacts on both the
module and its mating connector. Worn contacts may create electrical
resistance that can affect module operation.
European Hazardous Location Approval
If you install the module in a European Zone 2 location, consider:
European Zone 2 Certification (The following applies when the product bears the
EEx Marking)
This equipment is intended for use in potentially explosive atmospheres as defined by
European Union Directive 94/9/EC.
The LCIE (Laboratoire Central des Industries Electriques) certifies that this equipment has
been found to comply with the Essential Health and Safety Requirements relating to the
design and construction of Category 3 equipment intended for use in potentially explosive
atmospheres, given in Annex II to this Directive. The examination and test results are
recorded in confidential report No. 28 682 010.
Compliance with the Essential Health and Safety Requirements has been assured by
compliance with EN 50021.
IMPORTANT
When using this product, also consider the following:
• This equipment is not resistant to sunlight or other sources of UV
radiation.
• The secondary of a current transformer shall not be
open-circuited when applied in Class I, Zone 2 environments.
• Equipment of lesser Enclosure Type Rating must be installed in
an enclosure providing at least IP54 protection when applied in
Class I, Zone 2 environments.
• This equipment shall be used within its specified ratings defined
by Allen-Bradley.
• Provision shall be made to prevent the rated voltage from being
exceeded by transient disturbances of more than 40% when
applied in Class I, Zone 2 environments.
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ControlLogix EtherNet/IP Bridge Module 5
North American Hazardous Location Approval
The following information applies
when operating this equipment in
hazardous locations:
Products marked “CL I, DIV 2, GP A, B, C,
D” are suitable for use in Class I Division 2
Groups A, B, C, D, Hazardous Locations
and nonhazardous locations only. Each
product is supplied with markings on the
rating nameplate indicating the hazardous
location temperature code. When
combining products within a system, the
most adverse temperature code (lowest
“T” number) may be used to help
determine the overall temperature code of
the system. Combinations of equipment in
your system are subject to investigation
by the local Authority Having Jurisdiction
at the time of installation.
Informations sur l’utilisation de cet
équipement en environnements
dangereux:
Les produits marqués "CL I, DIV 2, GP A, B, C, D"
ne conviennent qu’à une utilisation en
environnements de Classe I Division 2 Groupes
A, B, C, D dangereux et non dangereux. Chaque
produit est livré avec des marquages sur sa
plaque d’identification qui indiquent le code de
température pour les environnements
dangereux. Lorsque plusieurs produits sont
combinés dans un système, le code de
température le plus défavorable (code de
température le plus faible) peut être utilisé pour
déterminer le code de température global du
système. Les combinaisons d’équipements
dans le système sont sujettes à inspection par
les autorités locales qualifiées au moment de
l’installation.
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6 ControlLogix EtherNet/IP Bridge Module
The following information applies
when operating this equipment in
hazardous locations:
WARNING
EXPLOSION HAZARD
• Do not disconnect
equipment unless
power has been
removed or the area
is known to be
nonhazardous.
• Do not disconnect
connections to this
equipment unless
power has been
removed or the area
is known to be
nonhazardous.
Secure any external
connections that
mate to this
equipment by using
screws, sliding
latches, threaded
connectors, or other
means provided
with this product.
• Substitution of
components may
impair suitability for
Class I, Division 2.
• If this product
contains batteries,
they must only be
changed in an area
known to be
nonhazardous.
Informations sur l’utilisation de cet
équipement en environnements
dangereux:
AVERTISSEMENT
RISQUE D’EXPLOSION
• Couper le courant ou
s’assurer que
l’environnement est
classé non dangereux
avant de débrancher
l'équipement.
• Couper le courant ou
s'assurer que
l’environnement est
classé non dangereux
avant de débrancher
les connecteurs. Fixer
tous les connecteurs
externes reliés à cet
équipement à l'aide
de vis, loquets
coulissants,
connecteurs filetés ou
autres moyens fournis
avec ce produit.
• La substitution de
composants peut
rendre cet équipement
inadapté à une
utilisation en
environnement de
Classe I, Division 2.
• S’assurer que
l’environnement est
classé non dangereux
avant de changer les
piles.
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ControlLogix EtherNet/IP Bridge Module 7
Identify Module Components
Use the following figure to identify the external features of the module.
Front View
LINK NET OK
RJ45 Cable
Connector located
on underside of module
31272-M
Front
Panel
Front
of
Module
Side View
Bottom View
MAC ID
Label
(Inside)
Backplane
Connector
Backplane
Connector
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8 ControlLogix EtherNet/IP Bridge Module
Prepare the Chassis for Module Installation
Before you install the module, you must install and connect a ControlLogix
chassis and power supply.
Power
Supply
-
1756-A4
Chassis
For information on installing these products, refer to the publications listed
below.
Chassis
Ty pe
Series B: 1756-A4, -A7, -A10, -A13 Pub. No.
Chassis
Installation
1756-IN080
Power
Supply
1756-PA72/B Pub. No.
1756-PB72/B
1756-PA75/A Pub. No.
1756-PB75/A
Power Supply
Installation
1756-5.67
1756-5.78
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ControlLogix EtherNet/IP Bridge Module 9
Determine Module Slot Location
You can install the module in any slot in the ControlLogix chassis. You can
also install multiple 1756-ENBT modules in the same chassis. The figure
below shows chassis slot numbering in a 4-slot chassis. Slot 0 is the first slot
and is always the leftmost slot in the rack (the first slot to the right of the
power supply).
Power Supply
Slot 0
Slot 1
Slot 2
Slot 3
Chassis
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10 ControlLogix EtherNet/IP Bridge Module
Install the Module in the Chassis
31275-M
2
Slide the module into the chassis. Make sure the
module backplane connector properly connects to
the chassis backplane.
1
Align the circuit board with top and
bottom guides in the chassis.
Circuit Board
Publication
3
The module is properly installed when
it is flush with the power supply or other
installed modules.
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31276-M
ControlLogix EtherNet/IP Bridge Module 11
Remove or Replace the Module (when applicable)
1
Push on upper and lower module tabs
to disengage them.
31277-M
31278-M
2
IMPORTANT
Slide module out of chassis.
If you are replacing an existing module with an
identical one, and you want to resume identical
system operation, you must install the new
module in the same slot.
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12 ControlLogix EtherNet/IP Bridge Module
Install or Remove the Module Under Power
This module is designed to be installed or removed while chassis power is
applied.
WARNING
When you insert or remove a module while
backplane power is on, an electrical arc may
occur. An electrical arc can cause personal injury
or property damage by:
• sending an erroneous signal to your system’s field
device causing unintended machine motion or loss
of process control
• causing an explosion in a hazardous environment
Repeated electrical arcing causes excessive wear
to contacts on both the module and its mating
connector. Worn contacts may create electrical
resistance that can affect module operation.
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ControlLogix EtherNet/IP Bridge Module 13
Wire the Ethernet Connector
Use an RJ45 connector to connect to the EtherNet/IP network. Wire the
connector according to the following illustration:
8 ------ NC
7 ------ NC
6 ------ RD5 ------ NC
4 ------ NC
3 ------ RD+
2 ------ TD1 ------ TD+
For detailed EtherNet/IP connection information, see the EtherNet/IP
Media Planning and Installation Guide, publication number ENET-IN001.
8
1
RJ 45
Connect the Module to the EtherNet/IP Network
WARNING
If you connect or disconnect the Ethernet cable
with power applied to this module or any device
on the network, an electrical arc can occur. This
could cause an explosion in hazardous location
installations. Be sure that power is removed or the
area is nonhazardous before proceeding.
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14 ControlLogix EtherNet/IP Bridge Module
Attach the RJ45 connector to the Ethernet port on the bottom of the module
as shown below:
IMPORTANT
Publication
OR
We recommend connecting the module to the
network via a 100MB Ethernet switch, which will
reduce collisions and lost packets and increase
network bandwidth. For detailed EtherNet/IP
connection information, see the following
publications:
• EtherNet/IP Performance and Application Guide,
publication ENET-AP001
• EtherNet/IP Media Planning and Installation
Guide, publication ENET-IN001
1756-IN019C-EN-P - November 2004
31279-M
ControlLogix EtherNet/IP Bridge Module 15
Apply Chassis Power
31280-M
Check Power Supply and Module Status
Check the LED indicators and alphanumeric display to determine if the
power supply and module are operating properly.
Alphanumeric
Display
LINK NET OK
LINK
NET
OK indicator is
red during self-test,
Power Supply
indicator is GREEN.
31281-M
then green.
The alphanumeric display should cycle through the following states: “TEST PASS - OK - REV x.x,” where “x.x” is the module’s firmware revision. The
display then alternates between “OK” and the module’s EtherNet/IP address.
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16 ControlLogix EtherNet/IP Bridge Module
Troubleshoot the Module
If the alphanumeric display and LED indicators do not sequence through the
expected states refer to the following troubleshooting tables. The three
bi-color (red/green) LED status indicators on the 1756-ENBT module
provide diagnostic information about the module and its connections to the
network.
NET (Network) Status Indicator
The Network Status LED provides the following information:
State Status Description
Off Not Powered,
No IP Address
Flashing Green No Connections Module has obtained an IP address,
Green CIP Connections Module has an IP address and at least
Flashing Red Connection Timeout One or more of the connections in
Red Duplicate IP Address Module has detected that its IP
Module is not powered, or does not
have an IP address.
• Verify there is chassis power and
the module is completely inserted
into the chassis and backplane.
• Make sure the module has been
configured.
but has no established connections.
one established connection.
which the module is the target has
timed out.
address is already in use. Assign a
unique IP address to the module.
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ControlLogix EtherNet/IP Bridge Module 17
Link Status Indicator
The Link Status LED provides the following information:
State Status Description
Off No data transmission Module is not ready to communicate.
Green Ready Module is ready to communicate.
Flashing Green Data transmission in
progress
Module is communicating over the
network.
OK Status Indicator
The OK Status LED provides the following module information:
State Status Description
Off No Power Module does not have 24V DC power.
Flashing Green Standby Module is not configured.
Green Operational Module is operating correctly.
Flashing Red Minor Fault A recoverable fault has been detected.
Red Major Fault An unrecoverable fault has been
Flashing Red and Green Self Test Module performing power-up self-test.
Verify there is chassis power and the
module is completely inserted into
chassis and backplane.
This could be caused by an error in the
configuration.
detected. Recycle power to the module.
If this does not clear the fault, replace
the module.
Where to Find Information on Configuring the Module
To configure your module, refer to the configuration chapter of your
EtherNet/IP Modules User Manual, publication number ENET-UM001,
available online at www.rockwellautomation.com/literature.
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18 ControlLogix EtherNet/IP Bridge Module
Specifications
Module Location Any slot in the ControlLogix chassis
Backplane Current (mA)
at 5V.1V dc
Backplane Current (mA)
at 24V
Isolation Voltage,
Continuous
Power Dissipation, Max. 3.65W
Conductors
Wire Size
Category
Ethernet Connector RJ45 Cat. 5
User Manual ENET-UM001
Environmental Conditions
Operating
Temperature
Storage
Temperature
Relative
Humidity
Vibration IEC60068-2-6 (Test Fc, Operating):
Shock,
Operating
700mA
3mA
30V
Tested to 707V dc for 60 seconds
802.3 compliant - shielded or unshielded twisted pair
1
2
IEC 60068-2-1 (Test Ad, Operating Cold),
IEC 60068-2-2 (Test Bd, Operating Dry Heat),
IEC 60068-2-14 (Test Nb, Operating Thermal Shock):
0 to 60°C (32 to 140°F)
IEC 60068-2-1 (Test Ab, Un-packaged Non-operating Cold),
IEC 60068-2-2 (Test Bb, Un-packaged Non-operating Dry Heat),
IEC 60068-2-14 (Test Na, Un-packaged Non-operating Thermal
Shock):
–40 to 85°C (–40 to 185°F)
IEC 60068-2-30 (Test Db, Un-packaged Non-operating Damp
Heat):
5 to 95% non-condensing
2g @ 10-500Hz
IEC60068-2-27 (Test Ea, Unpackaged shock):
30g
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ControlLogix EtherNet/IP Bridge Module 19
Shock,
Non-operating
Emissions CISPR 11:
ESD Immunity IEC 61000-4-2:
Radiated RF
Immunity
EFT/B Immunity IEC 61000-4-4:
Surge
Transient
Immunity
Conducted RF
Immunity
Enclosure Type
Rating
IEC60068-2-27 (Test Ea, Unpackaged shock):
50g
Group 1, Class A
6kV contact discharges
8kV air discharges
IEC 61000-4-3:
10V/m with 1kHz sine-wave 80%AM from 30MHz to 2000MHz
10V/m with 200Hz 50% Pulse 100%AM at 900Mhz
10V/m with 200Hz 50% Pulse 100%AM at 1890Mhz
±2kV at 5kHz on communications ports
IEC 61000-4-5:
±2kV line-earth(CM) on communications ports
IEC 61000-4-6:
10Vrms with 1kHz sine-wave 80%AM from 150kHz to 80MHz
None (open-style)
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Certifications
2
(when product is
marked)
UL UL Listed Industrial Control Equipment
CSA CSA Certified Process Control Equipment
CSA CSA Certified Process Control Equipment for Class I,
Division 2 Group A,B,C,D Hazardous Locations
FM FM Approved Equipment for use in Class I Division 2
Group A,B,C,D Hazardous Locations
CE European Union 89/336/EEC EMC Directive, compliant
with:
EN 50082-2; Industrial Immunity
EN 61326; Meas./Control/Lab., Industrial Requirements
EN 61000-6-2; Industrial Immunity
EN 61000-6-4; Industrial Emissions
C-Tick Australian Radiocommunications Act, compliant with:
AS/NZS CISPR 11; Industrial Emissions
EEx European Union 94/9/EEC ATEX Directive, compliant
with:
EN 50021; Potentially Explosive Atmospheres,
Protection “n” (Zone 2)
EtherNet/IP ODVA conformance tested to EtherNet/IP
specifications
1
Use this Conductor Category information for planning conductor routing. Refer to publication 1770-4.1,
“Industrial Automation Wiring and Grounding Guidelines”.
2
See the Product Certification link at www.ab.com for Declarations of Conformity, Certificates, and
other certification details.
Allen-Bradley and ControlLogix are tr ademarks of Rockwell Automati on.
Ethernet is a trademark of Digital Equipment Corporation, Intel, and Xerox Corporation.
Publication 1756-IN019C-EN-P - November 2004 PN 957944-26
Supersedes P ublication 1756-I N019B-EN-P - August 2001 Cop yright © 2004 Rockwell Au tomation, Inc. All rights r eserved. Printed in the U.S.A.
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