Allen-Bradley ProcessLogix B Series User manual

Publication 1757-IN092E-EN-P - November 2007
Installation Instructions
ProcessLogix and ControlLogix System
Redundancy Module
Catalog Number 1757-SRM, series B
About This Publication
Use this publication as a guide to install the 1757-SRM, Series B ProcessLogix
and ControlLogix System Redundancy Module into the ProcessLogix or
ControlLogix Redundant chassis pair.
Topic Page
About This Publication 1
Important User Information 2
Environment and Enclosure 4
Prevent Electrostatic Discharge 5
European Hazardous Location Approval 6
About the Module 7
Redundancy System Assembly 11
Using the 1757-SRM Module Relay Terminals 15
Designate the Primary Chassis and Qualify the System 19
Install or Remove the Module Under Power 22
1757-SRM Module Fault Codes and Display Messages 26
Specifications 30
Allen-Bradley Parts

2ProcessLogix and ControlLogix System Redundancy Module
Publication 1757-IN092E-EN-P - November 2007
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 to identify a
hazard, avoid a hazard and recognize the consequences.
SHOCK HAZARD
Labels may be on or inside the equipment, such as a drive or motor, to alert people
that dangerous voltage may be present.
BURN HAZARD
Labels may be on or inside the equipment, such as a drive or motor, to alert people
that surfaces may reach dangerous temperatures.

ProcessLogix and ControlLogix System Redundancy Module 3
Publication 1757-IN092E-EN-P - November 2007
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 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.
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.
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.
WARNING AVERTISSEMENT
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Publication 1757-IN092E-EN-P - November 2007
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
publication 60664-1), at altitudes up to 2000 m (6561 ft) without
derating.
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 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 publication 250 and IEC publication 60529, as
applicable, for explanations of the degrees of protection provided by
different types of enclosure.

ProcessLogix and ControlLogix System Redundancy Module 5
Publication 1757-IN092E-EN-P - November 2007
Prevent Electrostatic Discharge
Programmable Electronic Systems
Optical Ports
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.
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.
ATTENTION Under certain conditions, viewing the optical port may expose the eye
to hazard. When viewed under some conditions, the optical port may
expose the eye beyond the maximum permissible exposure
recommendations.
Allen-Bradley Parts

6ProcessLogix and ControlLogix System Redundancy Module
Publication 1757-IN092E-EN-P - November 2007
European Hazardous Location Approval
European Zone 2 Certification (The following applies when the product
bears the EEx Marking).
This equipment is intended for use in potentially explosive atmospheres as
defined by European Union Directive 94/9/EC.
The LCIE (Laboratoire Central des Industries Electriques) certifies that this
equipment 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.
IMPORTANT This equipment is not resistant to sunlight or other sources of UV
radiation.
This equipment must be installed in an enclosure providing at least
IP54 protection when applied in Class I, Zone 2 environments.
This equipment shall be used withinits 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 Class I, Zone 2 environments.
This equipment must be used only with ATEX certified backplanes.

ProcessLogix and ControlLogix System Redundancy Module 7
Publication 1757-IN092E-EN-P - November 2007
About the Module
Use this illustration to identify the external features of the module.
Before You Begin
Before you install the module, make sure you:
•know how to handle the module.
See Prevent Electrostatic Discharge on page 5.
•understand redundant systems and redundant media.
For additional information, see the ControlLogix Redundancy System
User Manual, publication 1756-UM523.
IMPORTANT If you are using a ProcessLogix system, search for the appropriate
Knowledge Builder documentation at:
http://www.rockwellautomation.com/knowledgebase.
Fiber-
Optic
Port
Front View of 1757-SRM Module with Door Open
Front Panel
Status
Indicators
User Relay
Terminal
Allen-Bradley Parts

8ProcessLogix and ControlLogix System Redundancy Module
Publication 1757-IN092E-EN-P - November 2007
Parts List
You will need these components.
Prepare the Chassis for Module Installation
Before you install the module, you must install and connect a ControlLogix
chassis and power supply.
Chassis Type (series B) Chassis Installation Instructions
1756-A4
Publication 1756-IN080
1756-A7
1756-A10
1756-A13
1756-A17
1757-SRM
Modules
1756-A4, 1756-A7, 1756-A10,
1756-A13, or 1756-A17 Chassis 1756-PA72, 1756-PA75,
1756-PB72, or 1756-PB75
Power Supplies
PRI COM OK
REDUNDANCY MODULE
1757-SRCxxx
Fiber-optic Cable
1756-A7
Chassis
Power
Supply

ProcessLogix and ControlLogix System Redundancy Module 9
Publication 1757-IN092E-EN-P - November 2007
Power Supply Power Supply Installation Instructions
1756-PA72/C Publication 1756-IN078
1756-PB72/B
1756-PA75/B Publication 1756-IN596
1756-PB75/B
ATTENTION To comply with UL restrictions, the relay terminals must be powered
from a source compliant with Class 2.
To comply with the CE Low Voltage Directive (LVD), the relay terminals
must be powered from a source compliant with Safety Extra Low
Voltage (SELV) or Protected Extra Low Voltage (PELV).
The line voltage source for the external dc power source to the SRM
Relay Terminals must be the same as that used to power the
energizing SRM Chassis.
Allen-Bradley Parts

10 ProcessLogix and ControlLogix System Redundancy Module
Publication 1757-IN092E-EN-P - November 2007
Determine Module Slot Location
Install the 1757-SRM module in the appropriate slot in the ControlLogix
chassis. Slot 0 is the first slot and is always the leftmost slot in the rack.
Installation Requirements
Before you assemble your redundant systems, make sure your redundant
system components are identical. Specifically, these items must match:
•primary and secondary (redundant) control chassis, with all modules
in the exact same order (slot for slot).
•firmware revisions of all module partners.
Chassis Type (series B) Recommended Slot Locations for 1757-SRM Module
1756-A4 1 or 2
1756-A7 4 or 5
1756-A10 5 or 6
1756-A13 4 or 5
1756-A17 5 or 6
IMPORTANT If the primary and secondary (redundant) systems are not
assembled identically, and are not comprised of modules with
matching firmware revisions, the 1757-SRM module cannot qualify
the secondary chassis to the primary chassis.
Power Supply
Slot 0
Slot 1
Slot 2
Chassis
Slot 3
Slot 4
Slot 5
Slot 6
1756-A7 chassis is
shown in this example.