Allen-Bradley ControlLogix 1756-ENET/B User manual

Publication 1756-IN053D-EN-P - June 2002
Installation Instructions
ControlLogix Ethernet Communication
Interface Module
Catalog Number 1756-ENET/B
Use this manual as a guide to install the ControlLogix™ Ethernet™
Communication Interface Module. This table identifies what this
manual contains and where to find specific information.
Topic Page
Important User Information 2
Identifying Module Components 6
Preparing the Chassis for Module Installation 6
Determining Module Slot Location 7
Installing the Module in the Chassis 8
Removing or Replacing the Module (when applicable) 9
Installing or Removing the Module While Power Is Applied 10
Wiring the Ethernet Connector 10
Connecting the Module to the Ethernet Network 11
Applying Chassis Power 12
Checking Power Supply and Module Status 13
Troubleshooting the Module 14
Where to Find Information on Configuring the Ethernet Module 14
Hazardous Location Information 15
Specifications 16
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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,

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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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ATTENTION
!
Environment and Enclosure
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 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.
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.

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European Zone 2 Certification
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 (1999).
ATTENTION
!
Preventing Electrostatic Discharge
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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Identifying Module Components
Use this illustration to identify the external features of the Ethernet
module.
Preparing the Chassis for Module Installation
Before you install the Ethernet module, you must install and connect
a ControlLogix chassis and power supply.
< www > ETHERNET
OKTXDRXD
AUI
10 BASET
1756-ENET
Backplane
Connector Product
Label
AUI Ethernet
Connector
10BT Ethernet
Connector
Side View Front View
Front
Panel
MAC ID
LED Status
Indicators
Door
Label
Label
20805-M
1756-A4
Chassis
Power
Supply

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For information about installing these products, refer to the
publications listed in this table.
Determining Module Slot Location
You can install the module in any slot in the ControlLogix chassis.
You can also install multiple ENET 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).
Chassis
Type
Chassis
Installation
Power
Supply
Power Supply
Installation
Series B: 1756-A4, -A7, -A10,
-A13, -A17
Pub. No.
1756-IN080
1756-PA72/B Pub. No.
1756-5.67
1756-PB72/B
1756-PA75/A Pub. No.
1756-5.78
1756-PB75/A
Power Supply
Slot 0
Slot 1
Slot 2
Slot 3
Chassis
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Installing the Module in the Chassis
Align the circuit board with top and
bottom guides in the chassis.
1
Slide the module into the chassis. Make
sure the module backplane connector
properly connects to the chassis backplane.
2
The module is properly installed
when it is flush with the power
supply or other installed modules.
Circuit Board
3

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Removing or Replacing the Module (when applicable)
IMPORTANT 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.
Push on upper and lower module
tabs to disengage them.
1
Slide module out of chassis.
2
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Installing or Removing the Module While Power Is Applied
You can install or remove the module while chassis power is applied.
Please observe the following precautions.
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.
Wiring the Ethernet Connector
Use either an AUI or an RJ45 connector to connect to the Ethernet
network.
For detailed Ethernet connection information, see the EtherNet/IP
Performance and Application Guide, publication ENET-IN001.
Wire the appropriate connector according to this illustration.
WARNING
!
When you insert or remove the module while
backplane power is on, or you connect or
disconnect the communications connectors, 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.
RJ 45
8
1
AUI
9-Ctrl IN Ckt B
10-Data OUT Ckt B
11-Data OUT Ckt B
12-Data OUT Ckt B
13-Voltage Plus
14-Voltage Shield
15-Ctrl OUT Ckt B
Protective Ground
1 ------ TD+
1-Ctrl IN Ckt Shield
2-Ctrl IN Ckt A
3-Data OUT Ckt A
4-Data IN Ckt Shield
5-Data In Ckt A
6-Voltage Comm
7-Ctrl OUT Ckt A
8-Ctrl OUT Ckt Shield
2 ------ TD-
3 ------ RD+
4 ------ NC
5 ------ NC
6 ------ RD-
7 ------ NC
8 ------ NC

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Connecting the Module to the Ethernet Network
Attach the AUI or RJ45 connector to the matching Ethernet port:
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.
POWER
POWER
OR
OR
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If your application requires the module door to be closed, use one of
these custom AUI connector cables available in two lengths:
•2 meters (catalog number 1756-TC02), or
•15 meters (catalog number 1756-TC15).
Applying Chassis Power
IMPORTANT Connecting the module to the network via an
Ethernet switch will reduce collisions and lost
packets and increase network bandwidth. See the
EtherNet/IP Performance and Application Guide,
publication ENET-AP001, for more information.
20921-M
ON
POWER
OFF
ON
POWER
OFF

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Checking Power Supply and Module Status
Check the LED indicators to determine if the power supply and
module are operating properly.
If the Power Supply and OK indicators are not in the states described
above refer to the following troubleshooting section.
OKTXDRXD
< www > ETHERNET
POWER
OK indicator is RED,
then FLASHING RED
(or is GREEN if module
is configured).
Power Supply
indicator is GREEN
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Troubleshooting the Module
This table describes module health (OK) indicator displays, module
status, and recommended action:
This table describes the transmit (TXD) and receive (RXD) indicator
display:
Where to Find Information on Configuring the Ethernet Module
Now that you have installed your Ethernet module, you must
configure it with an IP Address, Subnet Mask, and Gateway Address.
Refer to the configuration chapter of your ControlLogix Ethernet
Communication Interface Module User Manual, publication
1756-UM051.
If the OK indicator is then module status is take this action
Off Not operating. Apply chassis power.
Verify module is completely inserted
into chassis and backplane.
Red, then flashing red
or flashing green
Performing powerup
diagnostics.
None, normal operation.
Green Operating. None.
Red flashing Not configured. Configure module (refer to the
configuration chapter of your ControlLogix
Ethernet Communication Interface Module
User Manual, publication 1756-UM051)
Red Unrecoverable fault. Repair or replace module.
If this indicator is the module is
TXD Green Transmitting data
Off Not active
RXD Green Receiving data
Off Not active

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Hazardous Location Information
The following information applies when
operating this equipment in hazardous
locations:
Informations sur l’utilisation de cet équipement
en environnements dangereux :
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.
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.
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.
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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Specifications
Module Location Any slot in the ControlLogix chassis
Maximum Backplane
Current Load
900mA @ 5.1V dc
350mA @ 24V dc from I/O chassis backplane
Power Dissipation 13.3W maximum
Operating
Temperature
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)
Storage Temperature 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)
Relative Humidity IEC 60068-2-30 (Test Db, Un-packaged Non-operating Damp Heat):
5 to 95% non-condensing
Shock IEC 60068-2-27 (Test Ea, Unpackaged Shock):
Operating 30g
Non-operating 50g
Vibration IEC 60068-2-6 (Test Fc, Operating):
5g @ 10-500Hz
Emissions CISPR 11:
Group 1, Class A
ESD Immunity IEC 61000-4-2:
6kV contact discharges
8kV air discharges
Radiated RF Immunity IEC 61000-4-3:
10V/m with 1kHz sine-wave 80%AM from 30MHz to
1000MHz
10V/m with 200Hz 50% Pulse 100%AM at 900Mhz
EFT/B Immunity IEC 61000-4-4:
±2kV at 5kHz on communications ports
Surge Transient
Immunity
IEC 61000-4-5:
+2kV line-earth (CM) on shielded ports
Conducted RF
Immunity
IEC 61000-4-6:
10Vrms with 1kHz sine-wave 80%AM from 150kHz to
80MHz

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Enclosure Type Rating None (open-style)
Conductors
Wiring
Category
802.3 compliant - twisted pair
2(1)
Certifications:
(when product is
marked)
UL UL Listed Industrial Control Equipment
CSA CSA Certified Process Control Equipment for Class I,
Division 2 Group A,B,C,D Hazardous Locations
CSA CSA Certified Process Control Equipment
FM FM Approved Equipment for use in Class I Division 2
Group A,B,C,D Hazardous Locations
CE(2) 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(2) Australian Radiocommunications Act, compliant with:
AS/NZS 2064; Industrial Emissions
EEx(2) European Union 94/9/EC ATEX Directive, compliant
with:
EN 50021; Potentially Explosive Atmospheres,
Protection “n”
ODVA ODVA conformance tested to ODVA EtherNet/IP
specifications
(1) For information on conductor routing, refer to publications 1770-4.1, Industrial Automation Wiring and
Grounding Guidelines, and ENET-IN001, EtherNet/IP Media Planning and Installation Manual.
(2) See the Product Certification link at www.ab.com for Declarations of Conformity, Certificates, and
other certification details.
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Allen-Bradley and ControlLogix are trademarks of Rockwell Automation.
Ethernet is a trademark of Digital Equipment Corporation, Intel, and Xerox Corporation.
IMPORTANT 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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Publication 1756-IN053D-EN-P - June 2002 PN 957689-13
Supersedes Publication 1756-IN053C-EN-P - May 2001 Copyright © 2002 Rockwell Automation, Inc. All rights reserved. Printed in the U.S.A.