Rockwell Automation 1797-RPFM User Manual

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 11
Wire the Modules 12
Describing the ControlNet Ex System Diagram 14
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

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2 ControlNet Ex Modular Repeater Adapter & Fiber Repeater 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 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 dif fe ren ce , and als o becaus e
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.

Identifies information about practices or circumstances that can cause an explosion in a
hazardous environment, which may lead to pers onal injury or death, property damage, or
economic loss.

Identifies information that is critical for successful application and understanding of the
product.

Identifies information about practices or ci rcumstances that can lead to pe rsonal injury or
death, property damage, or economic loss. Attentions help you identify a hazard, avoid a
hazard, and recognize the consequence.

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Labels may be located on or inside t he equipment to alert people that danger ous v olt age
may be present.

Labels may be located on or inside the equipment to alert people that surfaces may be
dangerous temperatures.

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ATTENTION

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

ControlNet Ex Modular Repeater Adapter & Fiber Repeater Module 3

Environment and Enclosure

This equipment is considered Group 1, Class A industrial
equipment according to IEC/CISPR Publicatio n 11. Without
appropriate precautions, there may be potential diffic ulties
ensuring electromagnetic compatibility in other environm ents
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 suit ab ly 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 enc losure 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 .

1797-RPA

COMM

MODULE

STATUS

STATUS

REPEATER

ADAPTER

PWR

1

2

3

4

+V

-V
+V

-V

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4 ControlNet Ex Modular Repeater Adapter & Fiber Repeater Module

41267

Repeater
Backplane
Connector

Module Locking Tab

Backplane Connector Cover

1797-RPFM

Label Here

Do not remove
unless connecting to
1797-RPFM.

1797-RPFM

Chan 1

Recv

Chan 2

Xmit

Recv

Xmit

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 infra red LED media signals to ba ckplane signals for use
by the 1797-RP A.

A maximum of two 1797-RPFM modules may be used with one 1797-RPA
adapter.

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ControlNet Ex Modular Repeater Adapter & Fiber Repeater Module 5

ATTENTION

ATTENTION

41167

41166

DIN-Rail Mount the 1797-RPA and -RPFM

Refer to Mounting Dimensions on page 31. For panel mounting information,
see publication 1794-5.13.

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.

1. Position the module on a 35 x 7.5 mm DIN rail (A-B part number

199-DR1) at approximately a 30o angle.

The DIN rail or mounting bracket must be appropriately
connected to the dedicated intrinsic safety gr ound.

2. Hook the lip on the rear of the adapter onto the top of the DIN rail,

and rotate the module onto the rail.

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6 ControlNet Ex Modular Repeater Adapter & Fiber Repeater Module

ATTENTION

41168

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.

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.

4. If the adapter does not snap into position, use a screwdriv er or similar

device to move the locking t ab 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.

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ControlNet Ex Modular Repeater Adapter & Fiber Repeater Module 7

IMPORTANT

IMPORTANT

41169

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.

8. Make sure the last fiber module has its backplane conne ctor cover in

place.

9. Connect the adapter wiring as shown below in the Wi rin g sec ti on .

You can only attach two me di a 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.

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8 ControlNet Ex Modular Repeater Adapter & Fiber Repeater Module

WARNING

WARNING

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

41307

Installation in Zone 1 for CENELEC

Modules must not be exposed to the environ me nt . 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.

Modules cannot be used in an intrinsically safe environment
after they have been exposed to nonintrinsically safe signals.

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.

Make certain that you only connect ControlNet Ex adapters to other
intrinsically safe system modules to maintain the integrity of the
intrinsically-safe backplane.

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This adapter cannot be used in an intrinsically safe environment
after it has been exposed to nonintrinsically safe signals.

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ControlNet Ex Modular Repeater Adapter & Fiber Repeater Module 9

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 2004/108/EC 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

 EN61326-1:2006 (Industrial), Electrical Equipment For

Measurement, Control, and Laboratory Use - Industrial EMC
Requirements

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10 ControlNet Ex Modular Repeater Adapter & Fiber Repeater Module

ATEX Directive

These products are tested in conjunction with associated I/O modules to
meet the Council Directive 94/9/EC (ATEX) Equipment and Protective
Systems Intended for Use in Potentially Explosive Atmospheres by applying
the following standards.

 EN60079-11:2007, Explosive atmospheres - Part 11 : equipment

protection by intrinsic safety "i"

 EN60079-0:2006, Electrical apparatus for explosive gas atmospheres -

Part 0 : general requirements

 EN 60079-26 : 2004, Electrical apparatus for explosive gas

atmospheres - Part 26 : construction, test and marking of Group II
Category 1 G electrical apparatus

 EN61241-0 : 2006, Electrical apparatus for use in the presence of

combustible dust - P art 0: General requirements

 EN61241-11:2006, Electrical apparatus for use in the presence of

combustible dust – P a rt 11: Prot ection by intrinsic safety 'iD'

UL, C-UL Compliance

If this product has the UL/C-UL mark, it has been designed, evaluated,
tested, and certified to meet the following standards:

 UL 913, 1988, Intrinsically Safe Apparatus and Associated Apparatus

for Use in Class I, II, and III Division 1, Hazardous (Classified)
Locations

 UL 1203, Explosion-Proof and Dust-Ignition-Proof Electrical

Equipment for Use in Hazardous (Classified) Locations

 UL 2279, Electrical Equipment for Use in Class I, Zone 0, 1, and 2

Hazardous (Classified) Locations

 UL 61010, UL Standard for Safety Electrical Equipment For

Measurement, Control, and Laboratory Use; Part 1: General
Requirements

 CSA C22.2 No. 157-92, Intrinsically Safe and Non-Incendive

Equipment for Use in Hazardous Locations

 CSA C22.2 No. 30-M1986, Explosion-Proof Enclosures for Use in

Class I Hazardous Locations

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