Allen-Bradley Flex I/O Manuale utente

Installation Instructions

FLEX I/O Digital Input and Output

Modules w/ Diagnostics

Catalog numbers 1794-IB16D, 1794-OB16D

Table of Contents

Topic Page

Important User Information 2

Environment and Enclosure 3

Preventing Electrostatic Discharge 3

North American Hazardous Location Approval 4

Installing Your Digital Input or Output Module 6

Diagnostics 12

Configuring Your Module 15

Specifications 17

2FLEX I/O Digital Input and Output Modules w/ Diagnostics

Publication 1794-IN096C-EN-P - August 2015

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 and Output Modules w/ Diagnostics 3

Publication 1794-IN096C-EN-P - August 2015

Environment and Enclosure

Preventing Electrostatic Discharge

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 (6562 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 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 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.

4FLEX I/O Digital Input and Output Modules w/ Diagnostics

Publication 1794-IN096C-EN-P - August 2015

North American Hazardous Location Approval

The following modules are North American Hazardous Location approved: 1794-IB16D,

1794-OB16D.

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.

FLEX I/O Digital Input and Output Modules w/ Diagnostics 5

Publication 1794-IN096C-EN-P - August 2015

ATTENTION: FLEX™ I/O 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, 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.

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.

6FLEX I/O Digital Input and Output Modules w/ Diagnostics

Publication 1794-IN096C-EN-P - August 2015

Installing Your Digital Input or Output Module

The input module mounts on a 1794-TB32 or 1794-TB32S terminal base. The output

module mounts on a 1794-TB2, 1794-TB3, or 1794-TB3S terminal base.

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

required for this type of module.

2. Make certain the flexbus connector (3) 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.

Description Description

1 Keyswitch 5 Alignment bar

2 Terminal base 6 Groove

3 Flexbus connector 7 Latching mechanism

4 Module

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.

FLEX I/O Digital Input and Output Modules w/ Diagnostics 7

Publication 1794-IN096C-EN-P - August 2015

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

Connecting Wiring for the 1794-IB16D Module

(using a 1794-TB32 or 1794-TB32S Terminal Base)

1. Connect individual input wiring (IN00-IN15) to terminals 0 thru 15 on the 0-15

row (A) as indicated in the Wiring Connections for 1794-IB16D table.

2. Connect individual Sensor Power wiring (sensor power 0...15) to terminals

17...32 on the 16-33 row (B) as indicated in the Wiring Connections for

1794-IB16D table. Do not connect to terminals 16 or 33.

3. Connect the associated +V2 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-IB16D table. (The +V2 power terminals of row

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

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

Wiring Connections for 1794-IB16D table. (Commons are internally connected

together.)

5. Connect +V DC power to pin 43 (+V) on the 34-51 row (C).

6. Connect -V DC common to pin 44 (COM2) on the 34-51 row (C).

7. If daisychaining input wiring power to the next terminal base, connect a jumper

from terminal 49 (+V DC) on this base unit to the power terminal on the next

base unit (refer to the installation instructions for the next terminal base unit).

8. If continuing input wiring common to the next base unit, connect a jumper from

terminal 50 (common) on this base unit to the common terminal on the next base

unit (refer to the installation instructions for the next terminal base unit).

8FLEX I/O Digital Input and Output Modules w/ Diagnostics

Publication 1794-IN096C-EN-P - August 2015

1794-TB32 and 1794-TB32S Terminal Base Wiring for 1794-IB16D

17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33

0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15

35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51

+V2 = Terminals 43, 45, 47 and 49 -

Input Terminals 0-15

Sensor Power Terminals 0-15

+V1 COM1 +V1 COM1 +V1 COM1 +V1 COM1 +V2 COM2 +V2 COM2 +V2 COM2 +V2 COM2 NC

+V1 = Terminals 35, 37, 39 and 41 (not used)

COM1, COM2 = Terminals 36, 38, 40, 42, 44, 46, 48 and 50 -

NC = No connections (terminals 16, 33, 34 and 51)

NC NC

(1794-TB32 shown)

Voltage applied to Inputs 0-15 and Sensor power 0-15

Common for inputs 0 thru 15 and sensor power 0 thru 15

FLEX I/O Digital Input and Output Modules w/ Diagnostics 9

Publication 1794-IN096C-EN-P - August 2015

Wiring Connections for 1794-IB16D

(use with 1794-TB32 or 1794-TB32S terminal base units)

Input Input

Terminal

SensorPower

Terminal

Common Supply(1)

(1) 3-wire devices only. 2-wire devices use input and sensor power terminals; 3-wire devices use input, sensor power and common

terminals.

IN 00 A-0 B-17 -V common

connected to

terminals 36, 38,

40, 42, 44, 46, 48,

and 50

+V2 connected to

terminals 43, 45,

47, and 49IN 01 A-1 B-18

IN 02 A-2 B-19

IN 03 A-3 B-20

IN 04 A-4 B-21

IN 05 A-5 B-22

IN 06 A-6 B-23

IN 07 A-7 B-24

IN 08 A-8 B-25

IN 09 A-9 B-26

IN 10 A-10 B-27

IN 11 A-11 B-28

IN 12 A-12 B-29

IN 13 A-13 B-30

IN 14 A-14 B-31

IN 15 A-15 B-32

+V2 DC power Power terminals 43, 45, 47 and 49 (power terminals are internally connected

together in the module)

COM DC return Common terminals 36, 38, 40, 42, 44, 46, 48 and 50 (common terminals are

internally connected together in the module)

10 FLEX I/O Digital Input and Output Modules w/ Diagnostics

Publication 1794-IN096C-EN-P - August 2015

Connecting Wiring for the 1794-OB16D Module

(using a 1794-TB2, 1794-TB3, or 1794-TB3S Terminal Base)

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

indicated in the Wiring Connections for 1794-OB16D table.

2. Connect the associated common for each output to the corresponding terminal

on the 16-33 row (B) as indicated in the Wiring Connections for 1794-OB16D

table. (The common terminals of row (B) are internally connected together.)

3. Connect +V DC power to terminal 34 on the 34-51 row (C). (The power

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

4. Connect DC common (COM) to terminal 16 on the 16-33 row (B).

5. 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.

6. 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.

1794-TB2, 1794-TB3, and 1794-TB3S Terminal Base Wiring for 1794-OB16D

17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33

0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15

35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51

Outputs

Commons

(1794-TB3 shown)

-V (Supply Common) = Terminals B-16 thru B-33

+V (Supply +Voltage In) = Terminals C-34 thru C-51

-V

Voltage

In +V Voltage

Out +V

Voltage

(Use B-33 and C-51 for daisy-chaining to next terminal base unit)

Common -V

Common

Terminals 35 thru 50 not available on 1794-TB2

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