Rockwell Automation 1734-ACNR User Manual

Installation Instructions

POINT I/O ControlNet Adapter

Catalog Number 1734-ACNR

LED Indicators

Module

Status

PointBus

Status

ControlNet A

Status

ControlNet B

Status

Node Address Thumbwheel

1734-ACNR

System

Power

Field

Power

RTB Removal Handle

Safety End Cap

Network Address Port (NAP)

DIN Rail Locking

Removable Terminal Block (RTB)

Screw (orange)

Coaxial Channel A

Coaxial Channel B

43247

43247A

The POINT I/O ControlNet Adapter is a communications adapter for POINT I/O modules. The adapter provides an interface for controlling and communicating with POINT I/O modules from a ControlNet network.

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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 Rockwell Automation 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, Rockwell Automation 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 Rockwell Automation 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:

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1734-IN582B-EN-P - February 2005

WARNING

ATTENTION

IMPORTANT

BURN HAZARD

HOCK HAZARD

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.

Identifies information about practices or circumstances that can lead to personal injury or death, property damage, or economic loss.

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

Labels may be located on or inside the equipment (e.g., drive or motor) to alert people that surfaces may be dangerous temperatures.

Labels may be located on or inside the equipment (e.g., drive or motor) to alert people that dangerous voltage may be present.

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1734-IN582B-EN-P - February 2005

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.

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1734-IN582B-EN-P - February 2005

ATTENTION

WARNING

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.

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.

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.

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1734-IN582B-EN-P - February 2005

Before You Begin

To effectively use your adapter, note the following considerations.

Understand Messaging

Class 3 (Explicit Message) requests through the 1734-ACNR adapter to a specific POINT I/O module may not always receive a response from the I/O module. In the case where the I/O module does not reply to the request, the adapter responds with an error code indicating a time-out.

Establish I/O Connections

When you power up a POINT I/O system and establish I/O connections, the outputs transition to the Idle state, applying Idle state data before going to RUN mode. This occurs even when the controller making the connection is already in RUN mode.

Configure Autobaud

The adapter cannot reconfigure an I/O module that you previously configured to operate at a fixed baud rate. When you reuse a POINT I/O module from another POINT I/O system, configure the module to autobaud before using it with the 1734-ACNR adapter.

For More Information

The following related publications are available online at URL http://literature.rockwellautomation.com.

Publication Publication Number

POINT I/O ControlNet Adapter User Manual 1734-UM008 POINT I/O ControlNet Adapter Release Notes 1734-RN004

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Install the ControlNet Adapter

ATTENTION

Y ou must use Series C Point I/O modules with the 1734-ACNR. Series A and B Point I/O modules will not work with the 1734-ACNR.

To install the adapter on the DIN rail prior to installing other base units, proceed as follows.

1. Position the adapter vertically above the DIN rail.

2. Press down firmly to install the adapter on the DIN rail. The

locking mechanism will lock the adapter to the DIN rail.

3. Set the node address on the node address thumbwheel.

WARNING

If you connect or disconnect the ControlNet cable with power applied to this module or any device on the network, 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.

4. Remove the safety end cap by sliding it up. This exposes the backplane and power interconnections.

ATTENTION

Do not discard the end cap. Use this end cap to cover the exposed interconnections on the last mounting base on the DIN rail. Failure to do so could result in equipment damage or injury from electric shock.

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Set the Node Address

Set the node address using the 2-position thumbwheel switch. Valid settings range from 01 to 99. Press the + or - buttons to change the

number.

Module Status

Network Node Address thumbwheel Press either the + or - buttons to change the number.

PointBus

Status

ControlNet A Status

ControlNet B Status

1734-ACNR

System Power

Field Power

43248

Install a Replacement ControlNet Adapter to an Existing System

ATTENTION

WARNING

Publication

Y ou must use Series C Point I/O modules with the 1734-ACNR. Series A and B Point I/O modules will not work with the 1734-ACNR.

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. Repeated electrical 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.

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