Rockwell Automation 1756-DHRIOXT User manual

Installation Instructions
ControlLogix-XT Data Highway Plus-Remote
I/O Interface Module
Catalog Number 1756-DHRIOXT
Topic Page
Important User Information 3
About the 1756-DHRIOXT Module 7
About ControlLogix-XT Systems 9
ControlLogix-XT with Traditional ControlLogix Components 9
Before You Begin 10
Set the Network Type and Node Address Switches 10
Prepare the Chassis for Module Installation 11
Determine Module Slot Location 12
Installing and Removing the Module Under Power 12
Install the Module 13
Remove or Replace the Module 14
Wire the Connectors for the Module Channels 15
Connect the Programming Terminal 16
Connect the DH+ or Remote I/O Network 17
Apply Chassis Power 17
Check Power Supply and Module Status 18

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Alphanumeric Display Startup Sequence 19
Power Supply Status 20
Alphanumeric Display Codes 21
Status Indicators 24
General Specifications - 1756-DHRIOXT 26
Environmental Specifications - 1756-DHRIOXT 27
Certifications - 1756-DHRIOXT 29
Additional Resources 30
Topic Page

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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://literature.rockwellautomation.com) 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
Identifies information that is critical for successful application and understanding of
the product.
ATTENTION
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.
SHOCK HAZARD
BURN HAZARD

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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.

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North American Hazardous Location Approval
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 combinésdansun 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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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.
WARNING
•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.
ATTENTION
This equipment is not resistant to sunlight or other sources of UV
radiation.
ATTENTION
Personnel responsible for the application of safety-related programmable
electronic systems (PES) shall be aware of the safety requirements in the
application of the system and shall be trained in using the system.

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Preventing Electrostatic Discharge
About the 1756-DHRIOXT Module
You can use the 1756-DHRIOXT module to communicate on a DH+
or remote I/O network.
The 1756-DHRIOXT module functions in the same way as the
traditional 1756-DHRIO module. For information about configuring
and using both the 1756-DHRIOXT and 1756-DHRIO module, see the
ControlLogix Data Highway Plus-Remote I/O Communication
Interface Module User Manual, publication 1756-UM514.
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.
•Use a static-safe workstation, if available.
•Store the equipment in appropriate static-safe packaging
when not in use.

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Use this diagram to identify external features of the module.
Item Description
1Network type switches
2Alphanumeric display
3Status Indicators
48-pin mini DIN port for programming terminal
5Channel A connector
6Channel B connector
7Backplane connector
8Node address switches
A
1756-DHRIOXT
31925-M
TOP
FRONT
SIDE
BOTTOM
4
5
6
1
2
3
8
7

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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
environments where the temperature ranges from -25...70 °C
(-13...158 °F).
ControlLogix-XT with Traditional ControlLogix Components
For more information about standard ControlLogix component
specifications and installation requirements, see the resources listed
in the Additional Resources table on page 30.
IMPORTANT
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-DHRIOXT module is used in a traditional 1756-A10 chassis, the
1756-DHRIOXT module can withstand only the environment specified for the
traditional 1756-DHRIO module.
The ControlLogix-XT system components are designed to meet the same
and greater operational and environmental requirements as traditional
ControlLogix products.
When a ControlLogix-XT component is used as a replacement for a
traditional ControlLogix component, the functional and environmental
requirements of the traditional ControlLogix component apply.

10 ControlLogix-XT Data Highway Plus-Remote I/O Interface Module
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Before You Begin
Before you install your module, complete these tasks:
• Set the Network Type and Node Address Switches, page 10
• Prepare the Chassis for Module Installation, page 11
• Determine Module Slot Location, page 12
Set the Network Type and Node Address Switches
Before you install the module, set the network type switches for each
channel.
1. Using this image or the module label as a reference, set the
network type switches on the top of the module.
IMPORTANT
If your module uses the 230k DH+ network, that is, Channel A switch set to
3, Channel B is disabled.
Also, node address switches do not apply if you are using remote I/O.
TOP
Label
1

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If you set the network type to Data Highway Plus (DH+), also
set the node address switches for that channel to a unique
address within the range of 0…77.
2. Set the node address switches on the bottom of the module to
a unique node address.
Prepare the Chassis for Module Installation
Before you install the module, you must install and connect a
ControlLogix-XT chassis and power supply. Use these resources as
references to install your chassis and power supply before you install
your controller.
Task Resource
Install a ControlLogix-XT chassis ControlLogix XT Chassis, Series B Installation
Instructions, publication 1756-IN637
Install a ControlLogix-XT power supply ControlLogix XT Power Supply Installation
Instructions, publication 1756-IN639
BOTTOM
2

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Determine Module Slot Location
You can use the ControlLogix-XT chassis that suits your application
requirements. The 1756-DHRIOXT modules can be:
• installed in any open chassis slot.
• used in multiples in one chassis, within the limits of the
ControlLogix-XT power supply.
Installing and Removing the Module 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.
Slot 0 Slot 1 Slot 3Slot 2
31918--M
Slot 4

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Install the Module
Complete these steps to install the 1756-DHRIOXT module.
1. Align the circuit board with top and bottom guides in the
chassis.
2. Slide the module into the chassis.
3. Verify that the module backplane connector properly connects
to the chassis backplane.
The module is properly installed when it is flush with the
power supply or other installed modules.
ATTENTION
Do not force the module into the backplane connector. If you cannot seat the
module with firm pressure, check the alignment. Forcing the module into the
chassis can damage the backplane connector or the module.
X
T
CH A CH B OK
X
T

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Remove or Replace the Module
Complete these steps to uninstall the 1756-DHRIOXT module.
1. Push on upper and lower module tabs to disengage them.
2. Slide the module out of the 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.
X
T
CH A CH B OK
X
T

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Wire the Connectors for the Module Channels
Use these tables as a reference when wiring the network cable to the
connectors.
8-pin Mini DIN Connection
The 8-pin mini DIN programming terminal connection is parallel to
channel A when channel A is configured for DH+ communication.
Channel A and B Connections
Use the wiring specific to your application of the 1756-DHRIOXT
module.
Pin No. Wire
1Blue
3Shield
6Clear
DH+ Remote I/O
Pin No. Wire Pin No. Wire
1Clear 1Blue
Shield Shield
2Blue 2Clear
A
1756-DHRIOXT
678
345
1
1
2
2
301928-M
Channel A and B
Connectors
8-pin Mini DIN
Connector

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Connect the Programming Terminal
Connect the programming terminal by using the 8-pin mini DIN
connector.
WARNING
The local programming terminal port is intended only for temporary use and
must not be connected or disconnected unless the area is assured to be
nonhazardous.
If you connect or disconnect the communications connector 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.
WARNING
For hazardous locations, use the following cable for the programming
terminal connection:
•Supplier: Huan Yu
•Part Number: GCMD08P050062000
X
T
LINKNET OK
10/100/BASET
X
T
A
1756-DHRIOXT

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Connect the DH+ or Remote I/O Network
Connect the DH+ or Remote I/O network to the channel A or B
connector as appropriate.
Apply Chassis Power
Apply power to the ControlLogix-XT power supply to provide power
to the 1756-DHRIOXT module installed in the chassis.
WARNING
If you connect or disconnect the communications 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.
X
T
LINK NET OK
10/100/BASE T
X
T
A
1756-DHRIOXT

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Check Power Supply and Module Status
After you apply chassis power, check the power supply and module
status indicators to verify the module is working properly.
See the section titled Status Indicators, page 24 for more information
about interpreting module status.
31931-M

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Alphanumeric Display Startup Sequence
At powerup, the module’s alphanumeric display cycles through this
sequence.
• Channel A and the network used for channel A - DH+ or RIO
• Channel A node address, if used for DH+
• Channel A status
• Channel B and the network used for channel B - DH+ or RIO
• Channel B node address, if used for DH+
• Channel B status
That sequence runs continuously during normal module operation.
For example, if your module uses the following:
• Channel A for DH+ with node address 14
• Channel B for RIO
and the channels are operating properly, you see the following
sequence:
• A DH, A#14, A OK, B IO, SCAN, B OK
For more information about the codes displayed on the alphanumeric
display, see the Alphanumeric Display Codes (page 21) and the
Status Indicators (page 24) sections for more information

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Power Supply Status
If the alphanumeric indicator on the 1756-DHRIO module does not
cycle through alphanumeric messages on powerup, use this table,
along with the sections Alphanumeric Display Codes (page 21) and
Status Indicators (page 24) to determine a cause.
Configure Your 1756-DHRIOXT Module
After installing your 1756-DHRIOXT module, you must configure it.
The 1756-DHRIOXT module is configured using the same methods
and considerations as the traditional 1756-DHRIO module. For more
information about configuring and using the 1756-DHRIOXT and
1756-DHRIO modules, refer to the ControlLogix Data Highway
Plus-Remote I/O Communication Interface Module User Manual,
publication 1756-UM514.
POWER Indicator State Means Recommended Actions
Off Not operating •Turn power switch ON.
•Check power wiring connections.
•Check fuse.
On/Solid green Operating None - this is normal operation.