Allen-Bradley C Series User manual

POINT I/O is a trademark of Rockwell Automation

DeviceNet is a trademark of ODVA, Inc. Publication 1734-IN586B-EN-P - March 2002

Installation Instructions

POINT I/O Protected Output Module

(Cat. No. 1734-OB2EP Series C)

Description Description

1Mounting Base16 RTB Removal Handle

2 Mechanical Keying (orange) 7 Removable Terminal Block(RTB)1

3 Module Wiring Diagram 8 DIN Rail LockingScrew (orange)

4 Module Locking Mechanism 9 Slide-in Writable Label

5 Insertable I/O Module 10 Interlocking Side Pieces

1Wiring Base Assembly consists of item 1) mounting base, 1734-MB and item 7) removable

terminal block, 1734-RT or-RTS.

24VDC

Protected

Output

Module

Status

Network

Status

NODE:

1734

OB2EP

41825OB2E

2POINT I/O Protected Output Module

Publication 1734-IN586B-EN-P - March 2002

This Series C product can be used with DeviceNet and

PROFIBUS adapters. It can be used with ControlNet and

Ethernet adapters using RSLogix 5000, version 11 (or higher)

software.

Important User Information

Because of the variety of uses for the products described in this publication,

those responsible for the application and use of these products must satisfy

themselves that all necessary steps have been taken to assure that each

application and use meets all performance and safety requirements, including

any applicable laws, regulations, codes and standards. In no event will

Allen-Bradley be responsible or liable for indirect or consequential damage

resulting from the use or application of these products.

Any illustrations, charts, sample programs, and layout examples shown in this

publication are intended solely for purposes of example. Since there are many

variables and requirements associated with any particular installation,

Allen-Bradley does not assume responsibility or liability (to include intellectual

property liability) for actual use based upon the examples shown in this

publication.

Allen-Bradley publication SGI-1.1, Safety Guidelines for the Application,

Installation and Maintenance of Solid-State Control (available from your local

Allen-Bradley office), describes some important differences between

solid-state equipment and electromechanical devices that should be taken into

consideration when applying products such as those described in this

publication.

Reproduction of the contents of this copyrighted publication, in whole or part,

without written permission of Rockwell Automation, is prohibited.

Throughout this publication, notes may be used to make you aware of safety

considerations. The following annotations and their accompanying statements

help you to identify a potential hazard, avoid a potential hazard, and

recognize the consequences of a potential hazard:

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.

POINT I/O Protected Output Module 3

Publication 1734-IN586B-EN-P - March 2002

ATTENTION

Identifies information about practices or

circumstances that can 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.

4POINT I/O Protected Output Module

Publication 1734-IN586B-EN-P - March 2002

ATTENTION

Environment and Enclosure

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.

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.

ATTENTION

POINT I/O is grounded through the DIN rail to

chassis ground. Use zinc plated, yellow chromated

steel DIN rail to assure proper grounding. Using

other DIN rail materials (e.g. aluminum, plastic,

etc.) which can corrode, oxidize or are poor

conductors can result in improper or intermittent

platform grounding.

POINT I/O Protected Output Module 5

Publication 1734-IN586B-EN-P - March 2002

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.

ATTENTION

Preventing Electrostatic Discharge

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.

6POINT I/O Protected Output Module

Publication 1734-IN586B-EN-P - March 2002

Installing the Mounting Base

To install the mounting base on the DIN rail, proceed as follows.

1. Position the mounting base vertically above the installed units

(adapter, power supply or existing module.

2. Slide the mounting base down allowing the interlocking side

pieces to engage the adjacent module or adapter.

3. Press firmly to seat the mounting base on the DIN rail. The

mounting base will snap into place.

4. To remove the mounting base from the DIN rail, remove the

module, and use a small bladed screwdriver to rotate the base

locking screw to a vertical position. This releases the locking

mechanism. Then lift straight up to remove.

Installing the I/O Module

The module can be installed before, or after base installation. Make

sure that the mounting base is correctly keyed before installing the

module into the mounting base. In addition, make sure the mounting

base locking screw is positioned horizontal referenced to the base.

1. Using a bladed screwdriver, rotate the keyswitch (2) on the

mounting base clockwise until the number required for the

type of module being installed aligns with the notch in the

base.

2. Make certain the DIN rail locking screw is in the horizontal

position. (You cannot insert the module if the locking

mechanism is unlocked.)

WARNING

When 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.

POINT I/O Protected Output Module 7

Publication 1734-IN586B-EN-P - March 2002

3. Insert the module straight down into the mounting base and

press to secure. The module will lock into place.

Installing the Removable Terminal Block (RTB)

A removable terminal block is supplied with your wiring base

assembly. To remove, pull up on the RTB handle. This allows the

mounting base to be removed and replaced as necessary without

removing any of the wiring. To reinsert the removable terminal block,

proceed as follows.

1. Insert the end opposite the handle into the base unit. This end

has a curved section that engages with the wiring base.

2. Rotate the terminal block into the wiring base until it locks

itself in place.

3. If an I/O module is installed, snap the RTB handle into place

on the module.

WARNING

When you connect or disconnect the Removable

Terminal Block (RTB) with field side power

applied, 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.

8POINT I/O Protected Output Module

Publication 1734-IN586B-EN-P - March 2002

Removing a Mounting Base

To remove a mounting base, you must remove any installed module, and the

module installed in the base to the right. Remove the removable terminal

block (if wired).

1. Unlatch the RTB handle on the I/O module.

2. Pull on the RTB handle to remove the removable terminal block.

3. Press on the module lock on the top of the module.

4. Pull on the I/O module to remove from the base.

5. Repeat steps 1, 2, 3 and 4 for the module to the right.

6. Use a small bladed screwdriver to rotate the orange base locking

screw to a vertical position. This releases the locking mechanism.

7. Then lift straight up to remove.

WARNING

When you connect or disconnect the Removable

Terminal Block (RTB) with field side power

applied, 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.

WARNING

When 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.

POINT I/O Protected Output Module 9

Publication 1734-IN586B-EN-P - March 2002

Communicating with Your Module

I/O messages are sent to (consumed) and received from (produced)

the POINT I/O modules. These messages are mapped into the

processor’s memory. This POINT I/O output module produces 1 byte

of input data (scanner Rx) (status). It consumes 1 byte of I/O data

(scanner Tx).

Default Data Map for the 1734-OB2EP Output Module

Message size: 1 Byte

76543 2 1 0

Produces

(scanner Rx) Not used Ch1 Ch0 Channel status

Where: 0 = no error, 1 = error

76543 2 1 0

Consumes

(scanner Tx) Not used Ch1 Ch0 Channel state

Where: 0 = Off, 1 = On

10 POINT I/O Protected Output Module

Publication 1734-IN586B-EN-P - March 2002

Wiring the Protected Output Modules

dc Protected Output Module Cat. No. 1734-OB2EP

Output Terminal Common Terminal Power

Channel 0 0, 2 4 6

Channel 1 1, 3 5 7

Module poweris supplied from the internal powerbus.

Protected

Sourcing

Output

Module

Status

Network

Status

1734

OB2EP

NODE:

42016

Module Status

Network Status

Status of Output 0

Status of Output 1

Output 0

Connection

Output 0

Connection

Output 1

Connection

Output 1

Connection

C = Common

V = Supply

Out 0 Out 1

Out 1

Out 0

Load Load

42014

V = 12/24V dc, C = Common

Field power is supplied from internal power bus

1734-OB2EP 0

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