Rockwell Automation 1794-FLA User Manual

Installation Instructions

FlexLogix Controller System

Catalog numbers 1794-L33, 1794-L34, 1794-FLA

Use this document as a guide for installing your FlexLogix™ controller system. This
document provides installation instructions for both the FlexLogix controller
(1794-L33, -L34) and the FlexLogix extended-local I/O adapter (1794-FLA). You
should already be familiar with the FlexLogix system components. See the
documentation references for additional information.

You must FLASH upgrade the firmware on your FlexLogix controller before you
can use it. The controller ships with firmware revision 1.x but must be upgraded to
match the version of RSLogix 5000 that you are using (e.g. if you are using
RSLogix 5000 V11, you must upgrade your FlexLogix controller firmware to revision

11.x before using it). For more information on upgrading your controller’s
firmware, see page 22.

Tools That You Need

You need the following tools to install your FlexLogix controller system.

• slotted screwdriver

• phillips screwdriver

• mounting hardware (for mounting a DIN rail)

• drill (for mounting a DIN rail)

• needle-nose pliers

Obtain a User Manual

This product also has a user manual (pub. no. 1794-UM001). To view it, visit:
www.theautomationbookstore.com. To purchase a manual, you can:

• contact your local distributor or Rockwell Automation representative

• visit www.theautomationbookstore.com and place an order

• call 800.963.9548 (USA/Canada) or 001.320.725.1574 (outside USA/Canada)

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2 FlexLogix Controller System

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.ab.com/manuals/gi) 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

ATTENTION

SHOCK HAZARD

BURN HAZARD

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

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

• recognize the consequence

Labels may be located on or inside the drive to alert people that dangerous voltage may
be present.

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

Publication 1794-IN002G-EN-P - January 2004

Environment and Enclosure

FlexLogix Controller System 3

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
meters 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 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.

NOTE: See NEMA Standards publication 250 and IEC publication
60529, as applicable, for explanations of the degrees of
protection provided by different types of enclosure. Also, see the
appropriate sections in this publication, as well as the
Allen-Bradley publication 1770-4.1 ("Industrial Automation
Wiring and Grounding Guidelines"), for additional installation
requirements pertaining to this equipment.

Prevent Electrostatic Discharge

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.

• If available, use a static-safe workstation.

• When not in use, store the equipment in appropriate

static-safe packaging.

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4 FlexLogix Controller System

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. The examination and test results are recorded in confidential report
No. 28 682 010.

Compliance with the Essential Health and Safety Requirements has been
assured by compliance with EN 50021.

IMPORTANT

When using this product, also consider the following:

• This equipment is not resistant to sunlight or other
sources of UV radiation.

• The secondary of a current transformer shall not be
open-circuited when applied in Class I, Zone 2
environments.

• Equipment of lesser Enclosure Type Rating must be
installed in an enclosure providing at least IP54 protection
when applied in Class I, 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 Class I, Zone 2 environments.

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FlexLogix Controller System 5

North American Hazardous Location Approval

The following information applies
when operating this equipment in
hazardous locations:

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.

Informations sur l’utilisation de
cet équipement en
environnements dangereux :

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.

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6 FlexLogix Controller System

The following information applies
when operating this equipment in
hazardous locations:

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.

Informations sur l’utilisation de
cet équipement en
environnements dangereux :

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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FlexLogix Controller System 7

Removal and Insertion Under Power

The FlexLogix controller, the extended-local I/O adapter, the communication
daughtercards, and the I/O terminal bases cannot be removed or inserted
under power..

However, you can remove and insert FLEX I/O modules while backplane power is
applied and the system is operating.

WARNING

Be sure that power is removed or the area is nonhazardous before proceeding.

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.

Other Considerations

ATTENTION

Also consider the following before you install your
FlexLogix controller:

• 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
(e.g. aluminum, plastic, etc.) that can corrode, oxidize, or are
poor conductors, can result in improper or intermittent
grounding.

• Power connection length should be less than 10 meters.

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8 FlexLogix Controller System

What You Need to Do

Before you can install a FlexLogix controller or extended-local adapter, you must:

Install steel, 35 x 7.55mm DIN rails (A-B part number 199-DR1; 46277-3)

✓

where you want to place the FlexLogix system components.

The DIN rails for all FlexLogix system components, including all local and
extended-local I/O modules, must be mounted on a common, conductive
surface to ensure proper electromagnetic interference (EMI) performance.
See 24 and 25 for approximate mounting dimensions and mounting
clearances.

For more information about mounting DIN rails and splitting I/O across DIN
rails, see the FLEX I/O Product Data, publication 1794-2.1

Use DIN rail locks (A-B catalog number 1492-EA35) to meet the shock and

✓

vibrations specifications listed on 26. A pair of DIN locks comes with
the controller.

Mount an appropriate power supply on an appropriate DIN rail. See the

✓

specifications on 26.

To install a FlexLogix controller:

Step 1: Verify That You Have All the Components, see page 9.

Step 2: Install the Battery, see page 10.

Step 3: Install Communication Daughtercards (optional), see page 11

Step 4: Install the Controller, see page 12.

Step 5: Install the Extended-Local Adapter (optional), see page 15.

After you install the FlexLogix controller, you can:

Make an RS-232 Connection to the Controller, see page 18.

Select the Operating Mode of the Controller see page 21.

Monitor the Controller LEDs, see page 22.

Publication 1794-IN002G-EN-P - January 2004

FlexLogix Controller System 9

Step 1: Verify That You Have All the Components

These components ship with the FlexLogix controller:

• 1756-BA1 battery and label

• key

• one spring-clip connector plug for 24V power connection

• one screw-terminal connector plug for 24V power connection

• two 1492-EA35 DIN rail locks

The system components you have depend on your application. You might have:

FlexLogix System Component: Description:

communication card

1788-CNC, -CNCR for ControlNet communications
1788-CNF, -CNFR for ControlNet communications
1788-DNBO for DeviceNet communications
1788-ENBT for EtherNet/IP communications

serial cable

FlexLogix extended-local
adapter

extended- local I/O cable

1756-CP3
You can also use the 1747-CP3 cable from the SLC product family.

1794-FLA

1794-CE1 (1 foot)
1794-CE3 (3 foot)

Publication 1794-IN002G-EN-P - January 2004