Allen-Bradley ControlNet 1786-RPFM User manual

Installation Instructions
ControlNet Modular Repeater
Medium-distance Fiber Module
Catalog Number 1786-RPFM
About the Module
Use the 1786-RPFM module when you need a medium-distance fiber link
between two ControlNet products. Maximum distance is 3000 m (9843 ft). The
fiber link provides ground isolation between nodes and is less susceptible to
noisy environments than copper media.
Topic Page
Important User Information 2
Environment and Enclosure 3
North American Hazardous Location Approval 4
European Hazardous Location Approval 5
Module Components 6
Mount the Module 6
Select Fiber Cable 10
Connect the Fiber Module 11
Troubleshoot the Module 12
Specifications 13
Additional Resources 17
IMPORTANT
The supported distance depends on the quality of the fiber,
number of splices, and connectors. The total light loss through
the fiber link must be less than 13.3 dB.
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2ControlNet Modular Repeater Medium-distance Fiber Module
Rockwell Automation Publication 1786-IN011C-EN-P - November 2010
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.rockwellautomation.com/literature/) 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.
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.
SHOCK HAZARD: Labels may be on or inside the equipment, for example, drive or motor,
to alert people that dangerous voltage may be present.
BURN HAZARD: Labels may be on or inside the equipment, for example, drive or motor,
to alert people that surfaces may reach dangerous temperatures.
IMPORTANT Identifies information that is critical for successful application and understanding of the
product.

ControlNet Modular Repeater Medium-distance Fiber Module 3
Rockwell Automation Publication 1786-IN011C-EN-P - November 2010
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, Rockwell
Automation publication 1770-4.1, for additional installation
requirements.
•NEMA Standard 250 and IEC 60529, as applicable, for explanations
of the degrees of protection provided by different types of enclosure.
ATTENTION: This equipment is not resistant to sunlight or other
sources of UV radiation. AB Drives

4ControlNet Modular Repeater Medium-distance Fiber Module
Rockwell Automation Publication 1786-IN011C-EN-P - November 2010
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 foruse 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 temperaturecode(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.

ControlNet Modular Repeater Medium-distance Fiber Module 5
Rockwell Automation Publication 1786-IN011C-EN-P - November 2010
European Hazardous Location Approval
Prevent Electrostatic Discharge
European Zone 2 Certification (The following applies when the product bears the
Ex 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: You must follow these guidelines:
•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 Rockwell Automation.
•Do not disconnect equipment unless power has been removed
or the area is known to be nonhazardous.
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. AB Drives

6ControlNet Modular Repeater Medium-distance Fiber Module
Rockwell Automation Publication 1786-IN011C-EN-P - November 2010
Module Components
The illustration shows the components that comprise the 1786-RPFM module.
Mount the Module
Mount the module on a 35 x 7.5 mm (1.38 x 0.30 in.) DIN rail, Allen-Bradley
part number 199-DR1, 46277, EN 50022.
ATTENTION: This product is grounded through the DIN rail to
chassis ground. Use zinc-plated yellow-chromate steel DIN rail to
assure proper grounding. The use of other DIN-rail materials (for
example, aluminum or plastic) that can corrode or oxidize, or are
poor conductors, can result in improper or intermittent grounding.
Secure DIN rail to mounting surface approximately every
200 mm (7.87 in.) and use end-anchors appropriately.
TIP
When using the 1786-RPFM module, we recommend horizontal
mounting if cabinet temperatures are expected to approach
60 °C (140 °F). If your expected temperatures are much lower
than 60 °C (140 °F), vertical mounting is acceptable. If using
vertical mounting, we recommend that the 1786-RPA repeater
adapter module be mounted at the top.
42505
Both sides of the module contain a backplane connector.
Right-side
Backplane
Connector
with
Protective
Cover
Channel 2 Fiber Port
Module Locking Tab
Channel 1
Fiber Port
Protective Caps
Indicators

ControlNet Modular Repeater Medium-distance Fiber Module 7
Rockwell Automation Publication 1786-IN011C-EN-P - November 2010
Mounting Dimensions
1. Position the module at a 30°angle.
2. Hook the lip on the back of the module to the top of the DIN rail and
press the bottom of the module until the locking tab snaps securely
in place.
TIP
Use a screwdriver to move the locking tab downward, if the
module is not secured.
90
(3.6)
111
(4.44)
100
(4.0)
69
(2.76)
101.2
(4.048)
42501
All dimensions are in mm (in.).
42507
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8ControlNet Modular Repeater Medium-distance Fiber Module
Rockwell Automation Publication 1786-IN011C-EN-P - November 2010
3. If necessary, remove the protective caps from the transmit and receive
fiber channels.
WARNING: If 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.
If Then
You will connect another module Remove the protective backplane cap.
You will not use the backplane connector Keep the protective cap on to protect the
connector from dust.
ATTENTION: Do not discard the end cap. Use this end cap to
cover the exposed interconnections on the last module on the
DIN rail. Failure to do so could result in equipment damage.
41900
Protective Cap
DIN Rail
Protective
Backplane Cap
Both sides of the module contain a backplane connector.

ControlNet Modular Repeater Medium-distance Fiber Module 9
Rockwell Automation Publication 1786-IN011C-EN-P - November 2010
4. If applicable, slide the module to the left to mate with the repeater
adapter or another repeater module.
If Then
You will use a channel Remove the protective cap from the
channel.
You will not use a channel Keep the protective cap on to protect the
channel from dust.
You place the module in storage Keep the protective cap on to protect the
channel from dust.
IMPORTANT
Make certain that you secure the adapter and repeater modules
with DIN-rail anchors. If you do not, loss of communication or
module damage may result.
Consult with your local distributor for attenuation specifications
before you purchase your fiber media components.
30077
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10 ControlNet Modular Repeater Medium-distance Fiber Module
Rockwell Automation Publication 1786-IN011C-EN-P - November 2010
You can attach a maximum of four modules to the repeater adapter, or, the
number of modules whose total power consumption does not exceed
1.6 A @ 5V DC, whichever occurs first.
Select Fiber Cable
The type of fiber cable you choose depends on the network environment. The
quality of fiber cable determines the distance you can achieve. The maximum
length of a fiber cable section for the module depends on the quality of fiber,
number of splices, and the number of connectors. The total attenuation for a
cable must be less than 13.3 dB. Typically, cable attenuation for a wavelength of
1300 nm is less than 1.5 dB/km.
Refer to the specification table on page 13 and also to the ControlNet Fiber
Media Planning and Installation Guide, publication CNET-IN001, for more
details.
Also, consult with your local distributor for attenuation specifications before
you purchase your fiber media components.
Terminate Your Cable
You must terminate a medium distance cable in the field. To terminate, we
recommend that you cover unused ports with a suitable protector cap to prevent
dust and other contaminants from damaging the fiber transceiver ports.
For unused ports, we recommend that you place a simplex jumper between the
transmit port and receive port of an unused channel.
IMPORTANT
If you exceed the module or power limit, you may damage the
repeater adapter and modules.
IMPORTANT
Avoid splicing your cable. Connectors can cause considerable
attenuation and limit the maximum length of your system. Make
certain to check the attenuation of different cable sections after
you install the cable.