Installation Instructions
ControlLogix-XT ControlNet Interface Module
Catalog Number 1756-CN2RXT
Top ic Page
Important User Information 2
About the ControlLogix-XT ControlNet Module 6
About ControlLogix-XT Systems 8
ControlLogix-XT with Traditional ControlLogix Compone
Using the 1756-CN2RXT for Standalone or Redundant Control 9
Example Redundant ControlLogix-XT System 10
Before You Begin 10
Parts 11
Set the Module’s Network Address 11
Reset the Module to the Original Factory Settings 12
Prepare the Chassis for Module Installation 13
Determine the Module Slot Location 13
Removal and Insertion Under Power (RIUP) 14
Install the ControlNet Module 14
Connect the Module to the Network 16
Remove the Module 19
Install the EDS File 20
Configure RSLinx Software to Use the USB Port 21
Set Up the USB Driver 22
Status Indicators 23
Module Status Indicator and Display 23
Channel Status Indicators 29
General Specifications - 1756-CN2RXT 31
Environmental Specifications - 1756-CN2RXT 32
Certifications - 1756-CN2RXT 34
Additional Resources 35
nts 8
2 ControlLogix-XT ControlNet Interface Module
WARNING
IMPORTANT
ATTENTION
SHOCK HAZARD
BURN HAZARD
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
http://literature.rockwellautomation.com
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.
available from your local Rockwell Automation sales office or online at
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.
Identifies information that is critical for successful application and understanding
of the product.
) describes some important differences between solid state
Publication
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 and recognize the consequences.
Labels may be on or inside the equipment, for example, a drive or motor, to alert
people that dangerous voltage may be present.
Labels may be on or inside the equipment, for example, a drive or motor, to alert
people that surfaces may reach dangerous temperatures.
1756-IN634A-EN-P - April 2009
Environment and Enclosure
ATTENTION
This equipment is intended for use in a Pollution Degree 2 industrial
environment, in overvoltage Category II applications (as defined in IEC
60664-1), at altitudes up to 2000 m (6562 ft) without derating.
This equipment is considered Group 1, Class A industrial equipment according
to IEC/CISPR 11. Without appropriate precautions, there may be difficulties
with electromagnetic compatibility in residential and other environments due
to conducted and radiated disturbances.
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 enclosure must have
suitable flame-retardant properties to prevent or minimize the spread of flame,
complying with a flame spread rating of 5VA, V2, V1, V0 (or equivalent) if
non-metallic. 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.
In addition to this publication, see:
• Industrial Automation Wiring and Grounding Guidelines, for additional
installation requirements, Allen-Bradley publication 1770-4.1
• NEMA Standards 250 and IEC 60529, as applicable, for explanations of
the degrees of protection provided by different types of enclosure.
ControlLogix-XT ControlNet Interface Module 3
.
Publication
1756-IN634A-EN-P - April 2009
4 ControlLogix-XT ControlNet Interface Module
WARNING
AVERTISSEMENT
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, H azardous
Locations and nonhazardous locations only. Each product
is supplied with markings on the ra ting nameplate
indicating the hazardous locati on temperature code.
When combining products within a system, the most
adverse temperature code (lowest "T" numb er) may be
used to help determine the overall tem perature 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.
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 kn own
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:
Les produits marqués "CL I, DIV 2, GP A, B, C, D" ne
conviennent qu'à une utilisation en en vironnements 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 danger eux. Lorsque
plusieurs produits sont combinés dans un système, le code de
température le plus défavorable (code de tempér ature 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.
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'en vironnement est
classé non dangereux avant de
changer les piles.
Publication
1756-IN634A-EN-P - April 2009
ControlLogix-XT ControlNet Interface Module 5
WARNING
ATTENTION
European Hazardous Location Approval
European Zone 2 Certification
(The following applies when the product bears the Ex or EEx Marking)
This equipment is intended for use in potentially explosive atmospheres as defined by
European Union Directive 94/9/EC and 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.
Compliance with the Essential Health and Safety Requirements has been assured by
compliance with EN 60079-15 and EN 60079-0.
• This equipment must be installed in an enclosure providing at least IP54
protection when applied in 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
Zone 2 environments.
• This equipment must be used only with ATEX certified backplanes.
• Secure any external connections that mate to this equipment by using
screws, sliding latches, threaded connectors, or other means provided
with this product.
• Do not disconnect equipment unless power has been removed or the
area is known to be nonhazardous.
This equipment is not resistant to sunlight or other sources of UV radiation.
Publication
1756-IN634A-EN-P - April 2009
6 ControlLogix-XT ControlNet Interface Module
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.
• Use a static-safe workstation, if available.
• Store the equipment in appropriate static-safe packaging when not in
use.
About the ControlLogix-XT ControlNet Module
Configure and use the 1756-CN2RXT module as you would a
traditional 1756-CN2R/B module. For more information about
configuring and using the 1756-CN2RXT and 1756-CN2R/B modules,
see the ControlNet Modules in Logix5000 Control Systems User
Manual, publication
CNET-UM001.
Publication
1756-IN634A-EN-P - April 2009
ControlLogix-XT ControlNet Interface Module 7
00 Factory Reset
on Power Up
(Invalid Network Address)
01 - 99
Normal Operation
(Valid Network Address)
1
2
3
4
5
6
Features of the 1756-CN2RXT Module
These are the hardware features of the 1756-CN2RXT module.
Item Description
1 Module status display - an alphanumeric display that indicates module status
2 Status indicators that show channel and module status
3 USB port for temporary connection
4 Channel A BNC connector
5 Channel B BNC connector
6 Backplane connector
Publication
1756-IN634A-EN-P - April 2009
8 ControlLogix-XT ControlNet Interface Module
IMPORTANT
About ControlLogix-XT Systems
The ControlLogix-XT products include control and communication
system components that, when used with FLEX I/O-XT products,
provide a complete control system solution that can be used in
environments where temperatures range from -20...70 °C (-4...158 °F).
When used independently, the ControlLogix-XT system can withstand
ironments where the temperature ranges from -25...70 °C
env
(-13...158 °F).
ControlLogix-XT with Traditional ControlLogix Components
ControlLogix-XT system components are rated for extreme
environmental conditions only when used properly with other
Logix-XT system components. The use of ControlLogix-XT components
with traditional ControlLogix system components nullifies
extreme-environment ratings.
If a ControlLogix-XT module is used with traditional ControlLogix products,
that is, ControlLogix products not designed for extreme environments, the
ControlLogix-XT module can withstand only the environments specified for
the traditional ControlLogix version of the module. For example, if a
1756-CN2RXT module is used in a traditional 1756-A10 chassis, the
1756-CN2RXT module can withstand only the environment specified for the
traditional 1756-CN2R/B module.
The ControlLogix-XT system components are designed to meet the same
greater operational and environmental requirements as traditional
and
ControlLogix products.
When a ControlLogix-XT component is
traditional ControlLogix component, the functional and environmental
requirements of the traditional ControlLogix component apply.
used as a replacement for a
For more information about standard ControlLogix component
specifications and installation requirements, see the resources listed
in the Additional Resources table on page
Publication
1756-IN634A-EN-P - April 2009
35.
ControlLogix-XT ControlNet Interface Module 9
IMPORTANT
Using the 1756-CN2RXT for Standalone or Redundant Control
You can use the 1756-CN2RXT modules either in standalone or
redundant configurations.
A standalone configuration uses:
• one control chassis that contains the 1756-CN2RXT and the
6-L63XT controller.
175
• one or both channels of the 1756-CN2RXT module connected
to the ControlNet network.
A redundant configuration uses:
• two controller chassis called the redundant chassis pair. Each
ssis of the pair must contain at least these modules:
cha
– 1756-L63XT controller.
– 1756-CN2RXT ControlNet module.
– 1756-RMXT redundancy module.
• one or both channels of the 1756-CN2RXT module connected
to the ControlNet network.
If you are using the 1756-CN2RXT in a redundant system, these hardware
considerations must be made:
• Each redundant chassis of the pair must be configured with identical
modules placed in identical slots. These module pairings between the
two chassis are called partners.
• All partner modules in redundant chassis pairs must be at the same
firmware revision.
• For ControlNet module partners, the ControlNet network address must
be the same for each module of the pair.
• These modules cannot be used in redundant chassis pairs that contain
1756-CN2RXT modules:
– 1756-DHRIOXT or 1756-DHRIO
– 1756-SRM
For more information about redundancy control, refer to the
ControlLogix Redundancy System User Manual, publication
1756-UM523.
Publication
1756-IN634A-EN-P - April 2009
10 ControlLogix-XT ControlNet Interface Module
Primary Chassis
Secondary Chassis
Redundant
ControlNet Media
To Remote I/O
To Remote I/O
To Remote I/O
To Remote I/O
Example Redundant ControlLogix-XT System
This example of a redundant ControlLogix-XT system shows the
chassis components listed in this table.
This chassis Contains these modules
Primary chassis 1756-A5XT, 1756-PBXT, 1756-L63XT, 1756-RMXT, 1756-CN2RXT
Secondary chassis 1756-A5XT, 1756-PBXT, 1756-L63XT, 1756-RMXT, 1756-CN2RXT
Before You Begin
Before you install your module, complete these tasks:
Publication
11.
11.
• Obtain Appropriate Parts, page
• Set the Module’s Network Address, page
• Prepare the Chassis for Module Installation, page
• Determine the Module Slot Location, page 13.
1756-IN634A-EN-P - April 2009
13.
ControlLogix-XT ControlNet Interface Module 11
-
1756-CN2RXT
1756-A5XT or 1756-A7LXT
1756-PBXT
1786-TPR, 1786-TPS, 1786-TPYR, or 1786-TPYS
Top of Module
Parts
To use your ControlNet module, you need these system components.
X
X
T
X
T
X
T
X
T
T
Set the Module’s Network Address
Use a small screwdriver to set the module’s network address
switches. For modules in a standalone chassis, you must specify a
unique ControlNet network address. You can select an address of
01...99 for modules in a standalone chassis. Address 00 is an invalid
ControlNet address.
This example shows the network address switches set to 23.
Publication
1756-IN634A-EN-P - April 2009
Loading...