Allen-Bradley 1794-IB8 Manuel utilisateur

Installation Instructions

FLEX I/O Digital Input Modules

Catalog numbers 1794-IB8, 1794-IB16, 1794-IB32

Table of Contents

Topic Page

Important User Information 2

Environment and Enclosure 3

Prevent Electrostatic Discharge 3

European Hazardous Location Approval 4

North American Hazardous Location Approval 6

Install Your Digital Input Module 8

Configure Your Input Module 14

Specifications 17

2FLEX I/O Digital Input Modules

Publication 1794-IN093E-EN-P - August 2018

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.

FLEX I/O Digital Input Modules 3

Publication 1794-IN093E-EN-P - August 2018

Environment and Enclosure

Prevent Electrostatic Discharge

ATTENTION: This equipment is intended for use in a Pollution Degree 2

industrial environment, in overvoltage Category II applications (as defined in

EN/IEC 60664-1), at altitudes up to 2000 m (6562 ft) without derating.

This equipment is not intended for use in residential environments and may not

provide adequate protection to radio communication services in such

environments.

This equipment is supplied as open-type equipment for indoor use. 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 or be approved for the

application if nonmetallic. The interior of the enclosure must be accessible only

by the use of a tool. Subsequent sections of this publication may contain more

information regarding specific enclosure type ratings that are required to

comply with certain product safety certifications.

In addition to this publication, see the following:

• Industrial Automation Wiring and Grounding Guidelines, publication

1770-4.1, for more installation requirements.

• NEMA Standard 250 and EN/IEC 60529, as applicable, for explanations of

the degrees of protection provided by enclosures.

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.

4FLEX I/O Digital Input Modules

Publication 1794-IN093E-EN-P - August 2018

European Hazardous Location Approval

The following modules are European Zone 2 approved: 1794-IB8, 1794-IB16.

The following applies to products marked II 3 G:

• Are intended for use in potentially explosive atmospheres as defined by European

Union Directive 2014/34/EU 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 Zone 2 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.

• Are Equipment Group II, Equipment Category 3, and comply with the Essential Health

and Safety Requirements relating to the design and construction of such equipment

given in Annex II to EU Directive 2014/34/EU. See the EU Declaration of Conformity at

http://www.rockwellautomation.com/global/certification/overview.page for details.

• The type of protection is Ex nA IIC T3 Gc (1794-IB8) and Ex nA IIC T4 Gc (1794-IB16)

according to EN 60079-15.

• Comply to Standards EN 60079-0:2012, EN 60079-15:2010, reference certificate

number LCIE 01 ATEX 6020 X (1794-IB8) and DEMKO 14 ATEX 1342501X (1794-IB16).

• Are intended for use in areas in which explosive atmospheres caused by gases,

vapors, mists, or air are unlikely to occur, or are likely to occur only infrequently and

for short periods. Such locations correspond to Zone 2 classification according to

ATEX directive 2014/34/EU.

FLEX I/O Digital Input Modules 5

Publication 1794-IN093E-EN-P - August 2018

WARNING: Special Conditions for Safe Use:

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

• This equipment shall be mounted in an ATEX/IECEx Zone 2 certified

enclosure with a minimum ingress protection rating of at least IP54 (in

accordance with EN/IEC 60079-15) and used in an environment of not more

than Pollution Degree 2 (as defined in EN/IEC 60664-1) when applied in

Zone 2 environments. The enclosure must be accessible only by the use of

a tool.

• This equipment shall be used within its specified ratings defined by

Rockwell Automation.

• Provision shall be made to prevent the rated voltage from being exceeded

by transient disturbances of more than 140% of the peak rated voltage

when applied in Zone 2 environments.

• The instructions in the user manual shall be observed.

• This equipment must be used only with ATEX certified Rockwell

Automation backplanes.

• Earthing is accomplished through mounting of modules on rail.

• Devices shall be used in an environment of not more than Pollution

Degree 2.

WARNING: Secure any external connections that mate to this equipment by

using screws, sliding latches, threaded connectors, or other means provided

with this product.

WARNING: Do not disconnect equipment unless power has been removed or

the area is known to be nonhazardous.

WARNING: When you insert or remove the module while backplane power is

on, an electric 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.

Repeated electric arcing causes excessive wear to contacts on both the module

and its mating connector. Worn contacts may create electrical resistance that

can affect module operation.

6FLEX I/O Digital Input Modules

Publication 1794-IN093E-EN-P - August 2018

North American Hazardous Location Approval

The following modules are North American Hazardous Location approved: 1794-IB8,

1794-IB16, 1794-IB32.

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.

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.

FLEX I/O Digital Input Modules 7

Publication 1794-IN093E-EN-P - August 2018

ATTENTION: If this equipment is used in a manner not specified by the

manufacturer, the protection provided by the equipment may be impaired.

ATTENTION: Read this document and the documents listed in the Additional

Resources section about installation, configuration, and operation of this

equipment before you install, configure, operate, or maintain this product. Users

are required to familiarize themselves with installation and wiring instructions

in addition to requirements of all applicable codes, laws, and standards.

ATTENTION: Installation, adjustments, putting into service, use, assembly,

disassembly, and maintenance are required to be carried out by suitably trained

personnel in accordance with applicable code of practice.

ATTENTION: In case of malfunction or damage, no attempts at repair should be

made. The module should be returned to the manufacturer for repair. Do not

dismantle the module.

ATTENTION: This equipment is certified for use only within the surrounding air

temperature range of -20…+55 °C (-4…+131 °F) (1794-IB8 and 1794-IB16) or

0...50 °C (32…131 °F) (1794-IB32). The equipment must not be used outside of

this range.

ATTENTION: Use only a soft dry anti-static cloth to wipe down equipment. Do

not use any cleaning agents.

ATTENTION: This product is grounded through the DIN rail to chassis ground.

Use zinc plated chromate-passivated steel DIN rail to assure proper grounding.

The use of other DIN rail materials (for example, aluminum or plastic) that can

corrode, oxidize, or are poor conductors, can result in improper or intermittent

grounding. Secure DIN rail to mounting surface approximately every 200 mm

(7.8 in.) and use end-anchors appropriately. Be sure to ground the DIN rail

properly. Refer to Industrial Automation Wiring and Grounding Guidelines,

Rockwell Automation publication 1770-4.1, for more information.

ATTENTION: To comply with the CE Low Voltage Directive (LVD), this

equipment must be powered from a source compliant with the following:

Safety Extra Low Voltage (SELV) or Protected Extra Low Voltage (PELV).

8FLEX I/O Digital Input Modules

Publication 1794-IN093E-EN-P - August 2018

Install Your Digital Input Module

Compatibility

The following communication adapters are required to ensure compatibility with

the 1794-IB32:

Remote I/O 1794-ASB series E or later

1794-ASB2 series D or later

ControlNet 1794-ACN15 series C, firmware revision 4.1 or later

1794-ACNR15 series C, firmware revision 4.1 or later

DeviceNet 1794-ADN Series B, firmware revision 2.4 or greater for

out-of-box compatibility

Ethernet 1794-AENT series A, firmware revision 2.4 or later

PROFIBUS 1794-APB series A, version 1.1 of the GSD file

(You can download the GSD file at www.ab.com/networks/gsd.)

ControlLogix® Family RSLogix 5000® programming software, version 11 or later

Description Description

1 FlexBus connectors 5 Groove

2 Latching mechanism 6 Alignment bar

3 Keyswitch

Module

4 Terminal base

45284

FLEX I/O Digital Input Modules 9

Publication 1794-IN093E-EN-P - August 2018

The module mounts on a 1794 terminal base.

1. Rotate the keyswitch (3) on the terminal base (4) clockwise to position 2 as

required for this type of module.

2. Make sure the FlexBus connector (1) is pushed all the way to the left to connect

with the neighboring terminal base/adapter. You cannot install the module

unless the connector is fully extended.

3. Make sure the pins on the bottom of the module are straight so they will align

properly with the connector in the terminal base.

4. Position the module (7) with its alignment bar (6) aligned with the groove (5) on

the terminal base.

5. Press firmly and evenly to seat the module in the terminal base unit. The module

is seated when the latching mechanism (2) is locked into the module.

Connect Wiring for the 1794-IB8 and 1794-IB16 using a 1794-TB3 or

1794-TB3S

1. Connect individual input wiring to numbered terminals on the 0…15 row (A) as

indicated in the Wiring Connections for 1794-IB8 and 1794-IB16 table.

2. Connect the associated +V DC power lead of the input device to the

corresponding terminal on the 34…51 row (C) for each input as indicated in the

Wiring Connections for 1794-IB8 and 1794-IB16 table. (The +V power

terminals of row (C) are internally connected together.)

3. Connect the associated input common (3-wire devices only) to the

corresponding terminal on the 16…33 row (B) for each input as indicated in the

Wiring Connections for 1794-IB8 and 1794-IB16 table. (Commons are

internally connected together.)

ATTENTION: During mounting of all devices, be sure that all debris (metal

chips, wire strands, etc.) is kept from falling into the module. Debris that falls

into the module could cause damage on power up.

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.

10 FLEX I/O Digital Input Modules

Publication 1794-IN093E-EN-P - August 2018

4. Connect +V DC power to terminal 34 on the 34…51 row (C).

5. Connect DC common to terminal 16 on the 16…33 row (B).

6. If daisychaining power to the next terminal base, connect a jumper from terminal

51 (+V DC) on this base unit to terminal 34 on the next base unit.

7. If continuing DC common to the next base unit, connect a jumper from terminal

33 (common) on this base unit to terminal 16 on the next base unit.

Wiring Connections for 1794-IB8 and 1794-IB16

(use with 1794-TB3 or 1794-TB3S Terminal Base Unit)

Input(1)

(1) 1794-IB8: Inputs 0…7; 1794-IB16: Inputs 0…15.

Input Terminal Voltage Terminal Common Terminal(2)

(2) 3-wire devices use signal, supply and common. 2-wire devices use signal and supply

Input 0 A-0 C-35 B-17

Input 1 A-1 C-36 B-18

Input 2 A-2 C-37 B-19

Input 3 A-3 C-38 B-20

Input 4 A-4 C-39 B-21

Input 5 A-5 C-40 B-22

Input 6 A-6 C-41 B-23

Input 7 A-7 C-42 B-24

Input 8 A-8 C-43 B-25

Input 9 A-9 C-44 B-26

Input 10 A-10 C-45 B-27

Input 11 A-11 C-46 B-28

Input 12 A-12 C-47 B-29

Input 13 A-13 C-48 B-30

Input 14 A-14 C-49 B-31

Input 15 A-15 C-50 B-32

+V DC C-34...C-51

Common B-16...B-33

Ce manuel convient aux modèles suivants

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