Rockwell Automation Allen-Bradley ControlLogix DeviceNet... Manual de usuario

ControlLogix

DeviceNet

Interface Module

1756-DNB

User Manual

Important User Information

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

publication, those responsible for the application and use of this

control equipment 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.

The illustrations, charts, sample programs and layout examples shown

in this guide 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 manual we use notes to make you aware of safety

considerations:

Attention statements help you to:

•identify a hazard

•avoid a hazard

•recognize the consequences

Allen-Bradley, ControlLogix, and Data Highway Plus are trademarks of Rockwell Automation.

ControlNet is a trademark of ControlNet International, Ltd.

DeviceNet is a trademark of Open DeviceNet Vendor Association, Inc.

Ethernet is a trademark of Digital Equipment Corporation, Intel, and Xerox Corporation.

RSLinx, RSLogix 5000, and RSNetWorx are trademarks of Rockwell Software.

Windows 95/98 and Windows NT are trademarks of Microsoft Corporation.

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.

European Communities (EC)

Directive Compliance

If this product has the CE mark it is approved for installation within

the European Union and EEA regions. It has been designed and tested

to meet the following directives.

EMC Directive

This product is tested to meet the Council Directive 89/336/EC

Electromagnetic Compatibility (EMC) by applying the following

standards, in whole or in part, documented in a technical construction

file:

•EN 50081-2 EMC — Generic Emission Standard, Part 2 —

Industrial Environment

•EN 50082-2 EMC — Generic Immunity Standard, Part 2 —

Industrial Environment

This product is intended for use in an industrial environment.

Low Voltage Directive

This product is tested to meet Council Directive 73/23/EEC Low

Voltage, by applying the safety requirements of EN 61131-2

Programmable Controllers, Part 2 - Equipment Requirements and

Tests. For specific information required by EN 61131-2, see the

appropriate sections in this publication, as well as the Allen-Bradley

publication Industrial Automation Wiring and Grounding Guidelines

For Noise Immunity, publication 1770-4.1.

This equipment is classified as open equipment and must be mounted

in an enclosure during operation to provide safety protection.

1Publication 1756-6.5.19 - May 2000

Preface

About This User Manual

Introduction

This user manual is designed to provide you enough information to

get a small example application up and running. Use this manual if

you are knowledgeable about DeviceNetand ControlLogix

products, but may not have used the products in conjunction. The

information provided is a base; modify or expand the examples to suit

your particular needs.

The manual contains instructions on configuring a DeviceNet network

using RSLinx and RSNetWorx for DeviceNet software over various

networks:

•directly over the DeviceNet network

•from a ControlNet network

•from an Ethernet network

•from a Data Highway Plus network

The example application demonstrates how to perform control on a

DeviceNet network using a Logix5550 controller and the 1756-DNB

module. You use RSLogix 5000 programming software to create a

ladder logic program to control a photoeye and a RediSTATION.

IMPORTANT This User Manual should be used in conjunction with

the 1756-DNB DeviceNet Scanner Module

Installation Instructions, publication 1756-5.66. The

Installation Instructions contain important

information on configuring your scanner.

Publication 1756-6.5.19 - May 2000

P-2 About This User Manual

Contents

This user manual contains the following chapters:

Audience

This manual is intended for control engineers and technicians who are

installing, programming, and maintaining a control system that

includes a Logix5550 controller communicating on a DeviceNet

network through a 1756-DNB module.

We assume that you:

•are developing a DeviceNet network using a ControlLogix

chassis in conjunction with a 1756–DNB interface module

•know each of your device’s I/O parameters and requirements

•are experienced with the Microsoft®Windowsenvironment

•are familiar with RSNetWorx for DeviceNet software

Planning Your

Configuration

go to Chapter 2

4Configuring the

DeviceNet Network

go to Chapter 4

Configuring DeviceNet

From Another Network

go to Chapter 5

Before You Begin

go to Chapter 1

Setting Up the

Hardware

go to Chapter 3

Creating and Running

the Application Program

go to Chapter 6

7Troubleshooting

go to Chapter 7

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About This User Manual P-3

The Example Application

This manual describes how to set up an example application. The

manual provides examples of each step of the setup, with references

to other manuals for more details.

System Components

We used the following devices and software for the example

application. For your own application, substitute your own devices to

fit your needs. The recommended configurations in this user manual

will help you set up the test system and get it working. Your eventual

configuration will depend on your application.

Note: If you use different software or fimware versions of these

products some of your screens may appear slightly different from

those shown in the example.

Product Name Catalog Number Series Revision

Qty Hardware

1 ControlLogix chassis 1756-A4, -A7, -A10 - -

1 Logix5550 controller 1756-L1 A 5.12

1 ControlLogix DeviceNet Interface module 1756-DNB A 3.003

1 DeviceNet Quad-Tap 1492-DN3TW - -

1 RediSTATION operator interface module 2705-T3DN1A42A - -

1 Series 9000 Photoeye 42GNP-9000 or equivalent - -

1 DeviceNet PC serial communication module 1770-KFD A 1.04

1 RS-232 cable 1787-RSCABL/A (PC to 1770-KFD) - -

1 24V Power Supply Regulated 24VDC, 8A - -

1 PC IBM-compatible

Windows NT 4.0

DeviceNet dropline or trunkline

cables, as needed

1787-PCABL, -TCABL, -MCABL - -

1(1) ControlLogix ControlNet Interface module 1756-CNB B 2.24

1(2) ControlLogix Data Highway Plus Interface

module

1756-DHRIO B 2.17

1(3) ControlLogix Ethernet Interface module 1756-ENET A 1.18

Software

RSLogix 5000 9324-RL5300END - 2.51

RSNetWorx for DeviceNet 9357-DNETL3, - 2.11

RSLinx 9355-WAB - 2.10

(1) Required if interfacing the DeviceNet network and a ControlNet network. See chapters 5 and 6.

(2) Required if interfacing the DeviceNet network and a Data Highway Plus network. See chapters 5 and 6.

(3) Required if interfacing the DeviceNet network and an Ethernet network. See chapters 5 and 6.

Publication 1756-6.5.19 - May 2000

P-4 About This User Manual

Common Techniques

Used in This Manual

The following conventions are used throughout this manual:

•Bulleted lists provide information, not procedural steps.

•Numbered lists provide sequential steps.

•Information in bold contained within text identifies menu

windows, or screen options, screen names and areas of the

screen, such as dialog boxes, status bars, radio buttons and

parameters.

TIP This symbol identifies helpful tips.

A definition box defines terms that may be unfamiliar to you.

Screen captures are pictures of the software’s actual screens. The

names of screen buttons and fields are often in bold in the text of

a procedure. Pictures of keys represent the actual keys you press.

The “MORE” icon is placed beside any paragraph that references

sources of additional information outside of this document.

This is a definition

box. When a word is

bold within the text

of a paragraph, a

definition box will

appear in the left

margin to further

define the text.

Publication 1756-6.5.19 - May 2000

About This User Manual P-5

Where to Find

More Information

Refer to the following publications as needed for additional help

when setting up and using your DeviceNet network:

For information about See this publication Publication Number

the ControlLogix DeviceNet interface module ControlLogix DeviceNet Scanner Module Installation Instructions 1756-5.66

the ControlLogix Chassis ControlLogix Chassis Installation Instructions 1756-5.2

ControlLogix power supplies ControlLogix Power Supplies Installation Instructions 1756-5.1

connecting the DeviceNet network DeviceNet Cable Planning and Installation Manual DN-6.7.2

the 1770-KFD communication module DeviceNet RS-232 Interface Module Installation Instructions 1770-5.6

the Logix5550 controller Logix5550 Controller User Manual 1756-6.5.12

the RediSTATION RediSTATION Operator Interface User Manual 2705-804

the ControlLogix ControlNet Interface module ControlLogix ControlNet Bridge Installation Instructions 1756-5.32

the ControlLogix DH+ Interface module ControlLogix DHRIO Module Installation Instructions 1756-5.4

the ControlLogix Ethernet Interface module ControlLogix Ethernet Module Installation Instructions 1756-5.3

RSLogix 5000 software Getting Results with RSLogix 5000 9399-RLD300GR

RSLinx software RSLinx Lite User Guide 9399-WAB32LUG

RSNetWorx for DeviceNet software See the software’s online Help N/A

terms and definitions Allen-Bradley Industrial Automation Glossary AG-7.1

TIP Many of the above publications are available

online from the Automation Bookstore:

http://www.theautomationbookstore.com.

TIP For more information about Rockwell Software

products, visit the Rockwell Software internet site:

http://www.software.rockwell.com.

Publication 1756-6.5.19 - May 2000

P-6 About This User Manual

Terminology

This term Means

Bridge The interface module’s support of explicit message transfer.

Change of State A type of I/O data communication. The interface module can send and

receive data with slave devices that have the change of state feature. Data

is sent whenever a data change occurs. Data is updated at the rate of the

heartbeat.

Communication

Module

The 1756-DNB interface module or the 1770-KFD module.

Cyclic A type of I/O data communication. The interface module can send and

receive data with slave devices that have the cyclic feature. Data is only

sent at a user-configurable rate.

EDS Electronic Data Sheet. A vendor-supplied template that specifies how

information is displayed as well as what is an appropriate entry (value).

Explicit

Messaging

A type of messaging used for lower priority tasks, such as configuration

and data monitoring.

Heartbeat Rate Devices that are configured for change of state data can also send a

“heartbeat” signal to indicate proper operation.

Host Platform The computer that hosts the 1756-DNB interface module.

I/O An abbreviation for “input and output”.

Implicit

Messaging

The type of messaging used for high priority I/O control data; e.g., change

of state, cyclic, polled, or strobed.

Input Data Data produced by a DeviceNet device and collected by the interface

module for a host platform to read.

MAC ID The network address of a DeviceNet node.

Network The DeviceNet network or the RSNetWorx for DeviceNet software

representation of the network.

Node Hardware that is assigned a single address on the network (also referred

to as device).

Offline When the PC communication interface is not communicating on the

network.

Online When the PC communication interface is configured and enabled to

communicate on the network.

Output Data Data produced by a host platform that is written to the interface module’s

memory. This data is sent by the interface module to DeviceNet devices.

PC Abbreviation for an IBM®compatible personal-computer.

Polled A type of input/output-data communication. A polled message solicits a

response from a single, specified device on the network (a point-to-point

transfer of data).

Record The node address and channel-specific memory assigned in the interface

module’s non-volatile storage for a node in the scanlist.

Rx An abbreviation for “receive”.

Scanlist The list of devices (nodes) with which the scanner is configured to

exchange I/O data.

Scanner The function of the 1756-DNB interface module to support the exchange of

I/O with slave modules.

Slave Mode The interface module is in slave mode when it is placed in another

interface module’s scanlist as a slave device.

Strobed A type of I/O data communication. A strobed message solicits a response

from each strobed device (a multicast transfer). It is a 64-bit message that

contains one bit for each device on the network.

Tx An abbreviation for “transmit”.

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