Allen-Bradley ControlNet Ex 1797-RPA User manual

Publication 1797-IN015G-EN-P - August 2017
Installation Instructions
ControlNet Ex Modular Repeater Adapter &
Fiber Repeater Module
Catalog Numbers 1797-RPA and 1797-RPFM
Contents
For Information About See Page
Important User Information 2
About the ControlNet Ex Fiber Repeater Hub 4
DIN-Rail Mount the 1797-RPA and -RPFM 5
Installation in Zone 1 for CENELEC 8
Installation in Division 1/Zone 1 for UL, C-UL and FM 8
Electrostatic Charge 9
European Community (EC) Directive Compliance 9
Inputs/Outputs 12
Wire the Modules 13
Describing the ControlNet Ex System Diagram 15
Certification Specific ControlNet Ex System Diagrams 17
CENELEC Installation Label 18
CENELEC ControlNet Ex System Diagram 19
UL, C-UL ControlNet Ex System Diagram 20
FM ControlNet Ex System Diagram 22
Module Indicators 24
About the Mounting Kit 26
Repair 26
Specifications - 1797-RPA 27
Specifications - 1797-RPFM 29
Mounting Dimensions 31

2ControlNet Ex Modular Repeater Adapter & Fiber Repeater Module
Publication 1797-IN015G-EN-P - August 2017
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.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 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 consequence.
SHOCK HAZARD
Labels may be located on or inside the equipment to alert people that dangerous voltage
may be present.
BURN HAZARD
Labels may be located on or inside the equipment to alert people that surfaces may be
dangerous temperatures.

ControlNet Ex Modular Repeater Adapter & Fiber Repeater Module 3
Publication 1797-IN015G-EN-P - August 2017
ATTENTION
Environment and Enclosure
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.
13
24
+V +V
-V -V
1797-RPA
PWR
REPEATER
ADAPTER
COMM
STATUS
MODULE
STATUS
41163
Repeater
Backplane
Connector
Module Locking Tab Power and
Common Connections
Indicators
Backplane Connector Cover
1797-RPA
Label Here
Do not remove
unless connecting to
1797-RPFM.
ControlNet Ex
Tap Drop BNC
Connector With
Insulator Boot

4ControlNet Ex Modular Repeater Adapter & Fiber Repeater Module
Publication 1797-IN015G-EN-P - August 2017
About the ControlNet Ex Fiber Repeater Hub
Use the repeater adapter (1797-RPA) and the fiber module (1797-RPFM)
together to form a repeater hub within the hazardous area to extend the
length of the ControlNet Ex segments to interlink systems all operating
within the area.
The 1797-RPA repeater adapter, configured with at least one repeater adapter,
functions as the intelligent starter block for a multiport repeater. The
1797-RPFM is a nonintelligent fiber-to-backplane conversion device,
converting glass-fiber infrared LED media signals to backplane signals for use
by the 1797-RPA.
A maximum of two 1797-RPFM modules may be used with one 1797-RPA
adapter.
1797-RPFM
Recv Xmit
Recv Xmit
Chan 1 Chan 2
41267
Repeater
Backplane
Connector
Module Locking Tab
Backplane Connector Cover
1797-RPFM
Label Here
Do not remove
unless connecting to
1797-RPFM.

ControlNet Ex Modular Repeater Adapter & Fiber Repeater Module 5
Publication 1797-IN015G-EN-P - August 2017
DIN-Rail Mount the 1797-RPA and -RPFM
Refer to Mounting Dimensions on page 31. For panel mounting information,
see publication 1794-5.13.
1. Position the module on a 35 x 7.5 mm DIN rail (A-B part number
199-DR1) at approximately a 30oangle.
2. Hook the lip on the rear of the adapter onto the top of the DIN rail,
and rotate the module onto the rail.
ATTENTION
This product is grounded through the DIN rail to the dedicated
intrinsic safety ground. Use zinc-plated yellow-chromate steel
DIN rail to assure proper grounding. The use of other DIN rail
materials (such as aluminum or plastic) that can corrode, oxidize,
or are poor conductors, can result in improper or intermittent
grounding.
ATTENTION
The DIN rail or mounting bracket must be appropriately
connected to the dedicated intrinsic safety ground.
41167
41166

6ControlNet Ex Modular Repeater Adapter & Fiber Repeater Module
Publication 1797-IN015G-EN-P - August 2017
3. Press the adapter down onto the DIN rail until flush.
The locking tab should snap into position and lock the module to the
DIN rail.
4. If the adapter does not snap into position, use a screwdriver or similar
device to move the locking tab down while pressing the module flush
onto the DIN rail.
Release the locking tab to lock the module in place. If necessary, push
up on the locking tab to lock.
5. Remove the adapter backplane connector cover.
6. Follow steps 1 to 4 to attach fiber modules to the DIN rail.
7. Once attached to the DIN rail, slide fiber modules to the left to mate
with the adapter.
ATTENTION
Make certain that the adapter and fiber modules are secured
together with DIN rail anchors. Failure to do so may result in
the loss of communications, cause damage to the modules, or
both.
41168

ControlNet Ex Modular Repeater Adapter & Fiber Repeater Module 7
Publication 1797-IN015G-EN-P - August 2017
8. Make sure the last fiber module has its backplane connector cover in
place.
9. Connect the adapter wiring as shown below in the Wiring section.
IMPORTANT
A DIN-rail end anchor (A-B part number 1492-EA35) must
be used on the left side of the adapter and on the right side of
the fiber module to keep the units from moving.
IMPORTANT
You can only attach two media modules to the repeater
adapter. If you exceed the module limit, you may cause
damage to the adapter or fiber modules and void the IS
certification.
41169

8ControlNet Ex Modular Repeater Adapter & Fiber Repeater Module
Publication 1797-IN015G-EN-P - August 2017
Installation in Zone 1 for CENELEC
Modules must not be exposed to the environment. Provide a suitable metal
enclosure. A label with this system marking must be attached near the main
components of the system. If the system is installed in a cabinet, this label
must be fixed inside the cabinet.
Installation in Division 1/Zone 1 for UL, C-UL and FM
This adapter must not be exposed to the environment. Provide a suitable
metal enclosure. This adapter has a protection factor of IP20.
WARNING
Modules cannot be used in an intrinsically safe environment
after they have been exposed to nonintrinsically safe signals.
The fiber optic adapter type 1797-RPFM may be used in
combination with the ControlNet adapter type 1797-RPA.
WARNING
This adapter cannot be used in an intrinsically safe environment
after it has been exposed to nonintrinsically safe signals.
0102
ControlNet Ex System
Allen-Bradley
Attention!
Avoid electrostatic charging!
-200C <= Ambient Temperature <= +700C
1 Allen-Bradley Dr.
Mayfield Hts., OH USA
DMT 99 ATEX E 065 X
II (1)2G Ex ia ib IIC

ControlNet Ex Modular Repeater Adapter & Fiber Repeater Module 9
Publication 1797-IN015G-EN-P - August 2017
Make certain that you only connect ControlNet Ex adapters to other
intrinsically safe system modules to maintain the integrity of the
intrinsically-safe backplane.
Electrostatic Charge
Protect the system against electrostatic charge. Post a sign near this module:
WARNING Avoid electrostatic charging.
ADVERTÊNCIA! PREVENIR CONTRA O ACÚMULO DE CARGA
ELETROSTÁTICA.
For your convenience, a sign that can be cut out is included in this installation
instruction.
European Community (EC) Directive Compliance
If this product has the CE mark it is approved for installation within the
European Community or EEA regions. It has been designed and tested to
meet the following directives.
EMC Directive
If this product has the CE mark it is approved for installation within the
European Community or EEA regions. It has been designed and tested to
meet the following directives.
These products are tested to meet the Council Directive 2014/30/EU by
applying the following standards:
•EN 61000-6-4:2007, Electromagnetic Compatibility (EMC) - Part 6-4:
Generic Standard for Industrial Environments (Class A)
•EN 61000-6-2:2005, Electromagnetic Compatibility (EMC) - Part 6-2:
Generic Standards - Immunity for Industrial Environments
•EN 61326-1:2013 (Industrial), Electrical Equipment For
Measurement, Control, and Laboratory Use - Industrial EMC
Requirements
41307

10 ControlNet Ex Modular Repeater Adapter & Fiber Repeater Module
Publication 1797-IN015G-EN-P - August 2017
European Hazardous Location Approval
The following applies to products marked II (1)2 G
•Are Equipment Group II, Equipment Category (1)2, and comply with
the Essential Health and Safety Requirements relating to the design
and construction of such equipment given in Annex II to Directive
2014/34/EU. See the EC Declaration of Conformity at
http://www.rockwellautomation.com/products/certification
for details.
•The type of protection is “Ex ib[ia] IIC T4” according to
EN 60079-11.
•Comply to Standards EN 60079-0:2006, EN 60079-11:2007, and
EN 60079-26:2004, reference certificate number
DMT 99 ATEX E 011 X.
•Are intended for use in areas in which explosive atmospheres caused
by gases, vapors, mists, or air are likely to occur occasionally. Such
locations correspond to Zone 1 or 2 classification according to ATEX
directive 2014/34/EU.
IEC Hazardous Location Approval
The following applies to products with the IECEx certification:
•Are intended for use in areas in which explosive atmospheres caused
by gases, vapors, mists, or air are likely to occur only infrequently and
for short periods. Such locations correspond to Zone 1 or 2
classification to IEC 60079-0.
•The type of protection is “Ex ib IIC T4” and “Ex ib[ia] IIC T4”
according to IEC 60079-11.
•Comply to Standards IEC 60079-0:2004, IEC 60079-11:2006,
reference IECEx certificate number IECEx BVS 09.0021X.
Special Conditions for Safe Use:
The fibre optic adapter type 1797-RPFM* can only be use in combination
with the ControlNet adapter type 1797-RPA*.