Allen-Bradley ControlLogix Manuale utente

User

Manual

ControlLogix

Data Highway Plus/

Remote I/O

Communication

Interface Module

Allen-Bradley

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) describes some important differences between

solid state equipment and hard-wired electromechanical devices.

Because ofthisdifference, and also because of the wide variety ofuses

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 the Allen-Bradley Company 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

associatedwithanyparticularinstallation,theAllen-BradleyCompany

cannot assume responsibility or liability for actual use based on the

examples and diagrams.

Nopatentliabilityisassumedby Allen-BradleyCompanywith respect

touseofinformation,circuits,equipment,orsoftwaredescribedinthis

manual.

Reproductionofthecontentsofthismanual,inwholeorinpart,without

written permission of the Allen-Bradley Company is prohibited.

Throughout this manual we use notes to make you aware of safety

considerations.

Attentions help you:

•identify a hazard

•avoid the hazard

•recognize the consequences

Important: Identifies information that is especially important for

successful application and understanding of the product.

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

Microsoft is a registered trademark of Microsoft Corporation.

Windows, Windows 95 and Windows NT are trademarks of Microsoft Corporation.

ControlLogix and Data Highway Plus are trademarks of the Allen-Bradley Company, Inc.

ATTENTION: Identifiesinformationaboutpracticesor

circumstances that can lead to personal injury or death,

property damage, or economic loss.

Publication 1756-6.5.14 - August 1998

Preface

About This User Manual

What This Preface Contains This preface describes how to use this manual. The following table

describes what this preface contains and its location.

Who Should Use this Manual We assume you have a good understanding of the Data Highway Plus

protocol and Remote I/O. This user manual contains a brief

description of Data Highway Plus in Chapter 2 and a brief description

of Remote I/O in Chapter 7.

Purpose of This Manual This manual describes how to understand, configure and troubleshoot

your ControlLogix Data Highway Plus/Remote I/O communication

interface module.

For installation information, refer to the ControlLogix Data Highway

Plus Communication Interface Module Installation Instructions,

publication 1756-5.4.

For information about: See page:

Who Should Use This Manual P-1

Purpose of This Manual P-1

Conventions and Related Terms P-2

Related Products and

Documentation The following table lists related ControlLogix products and

documentation:

If you need more information on these products, contact your local

Allen-Bradley integrator or sales office for assistance. For more

information on the documentation, refer to the Allen-Bradley

Publication Index, publication SD499.

Rockwell Automation Support Rockwell Automation offers support services worldwide, with over

75 sales/support offices, 512 authorized distributors and 260

authorized systems integrators located throughout the United States

alone, plus Rockwell Automation representatives in every major

country in the world.

Local Product Support

Contact your local Rockwell Automation representative for:

•sales and order support

•product technical training

•warranty support

•support service agreements

Technical Product Assistance

If you need to contact Rockwell Automation for technical assistance,

please review the troubleshooting information in Appendix A first. If

problem persists, then call your local Rockwell Automation

representative.

Your Questions or Comments on this Manual

If you find a problem with this manual, please notify us of it on the

enclosed Publication Problem Report.

Catalog

number: Document title: Publication

number:

1756-DHRIO Data Highway Plus Communication Interface Module

Installation Instructions 1756-5.4

1756-GTWY ControlLogix Gateway Configuration Tool Quick Start 1756-10.2

Table of Contents

Publication 1756-6.5.14 - August 1998

ControlLogix Data Highway Plus/

Remote I/O Communication

Interface Module

Chapter 1

What the Module Does . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

Routing Limitations . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

DH+ and CIP Messaging . . . . . . . . . . . . . . . . . . . . 1-2

Remote I/O . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3

Module Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4

Setting Switches . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5

Alphanumeric Indicators . . . . . . . . . . . . . . . . . . . . 1-6

Compliance to European Union Directives . . . . . . . . . . 1-6

EMC Directive . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6

Low Voltage Directive . . . . . . . . . . . . . . . . . . . . . 1-7

Preventing Electrostatic Discharge . . . . . . . . . . . . . . . . 1-7

Removal and Insertion Under Power . . . . . . . . . . . . . . . 1-8

Chapter Summary and What’s Next . . . . . . . . . . . . . . . 1-8

Basics of Using Data

Highway Plus Chapter 2

What is Data Highway Plus . . . . . . . . . . . . . . . . . . . . . . 2-1

Selecting Devices that You Can Connect . . . . . . . . . . . 2-1

Link Design . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2

Programming Terminal Port . . . . . . . . . . . . . . . . . . . . . 2-2

Application Guidelines . . . . . . . . . . . . . . . . . . . . . . . . . 2-3

Chapter Summary and What’s Next . . . . . . . . . . . . . . . 2-3

DH+ Operation Chapter 3

Two Methods of Communication Over

Data Highway Plus . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1

Using DH+ Messaging . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2

Benefits of DH+ Messaging . . . . . . . . . . . . . . . . . . . . . 3-2

Local DH+ Messaging . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2

Receiving Local DH+ Messages on DH+ . . . . . . . 3-3

Sending Local DH+ Messages on DH+ . . . . . . . . 3-3

Limitations of Local DH+ Messaging . . . . . . . . . . 3-4

Routing Error in Local DH+ Messaging . . . . . . . . 3-5

Before Programming in a Controller . . . . . . . . . . . . . . . 3-5

Remote DH+ Messaging . . . . . . . . . . . . . . . . . . . . . . . . 3-6

Limitations of Remote DH+ Messaging . . . . . . . . 3-9

Routing Errors in Remote DH+ Messaging . . . . . 3-9

Configuration Information in DH+ Messaging . . . . . . 3-10

Generating Configuration Faults . . . . . . . . . . . . . 3-10

Application Timeout . . . . . . . . . . . . . . . . . . . . . . . . . . 3-11

toc–ii Table of Contents

Publication 1756-6.5.14 - August 1998

Example of an Application Timeout . . . . . . . . . . 3-11

Example DH+ Routing Configuration . . . . . . . . . . . . . 3-12

Using Control and Information

Protocol (CIP) Messaging . . . . . . . . . . . . . . . . . . . . 3-13

Limitations of CIP Messaging . . . . . . . . . . . . . . . 3-14

Chapter Summary and What’s Next . . . . . . . . . . . . . . 3-14

Programming Terminal

Operation Over DH+ Chapter 4

Connecting Your Programming Terminal

Over DH+ Using RSLogix 5 . . . . . . . . . . . . . . . . . . . 4-1

Connecting Your Programming Terminal

Over DH+ RSLogix 500 . . . . . . . . . . . . . . . . . . . . . . 4-2

Connecting Your Programming Terminal

Over DH+ Using RSLogix 5000 . . . . . . . . . . . . . . . . 4-3

Defining Connection Paths . . . . . . . . . . . . . . . . . . . . . . 4-5

Connection path examples . . . . . . . . . . . . . . . . . . . 4-6

Chapter Summary and What’s Next . . . . . . . . . . . . . . . 4-9

PLC-5 or SLC-5/04 to PLC-5 or

SLC-5/04 Messaging Chapter 5

DH+ Messaging Between PLC-5s With

One 1756-DHRIO Module . . . . . . . . . . . . . . . . . . . . . 5-2

Set the Module Switches . . . . . . . . . . . . . . . . . . . . 5-3

Set-Up a Routing Table for the1756-DHRIO Module 5-3

Configure Message Instructions . . . . . . . . . . . . . . 5-4

DH+ Messaging Between SLC-5/04s With

Two 1756-DHRIO Modules With One

ControlLogix Chassis . . . . . . . . . . . . . . . . . . . . . . . . . 5-5

Set the Module Switches . . . . . . . . . . . . . . . . . . . . 5-6

Set-Up a Routing Table for the First

1756-DHRIO Module . . . . . . . . . . . . . . . . . . . . 5-7

Set-Up a Routing Table for the Second

1756-DHRIO Module . . . . . . . . . . . . . . . . . . . . 5-7

Configure Message Instructions . . . . . . . . . . . . . . 5-8

DH+ Messaging Between PLC-5s With

Multiple ControlLogix Chassis . . . . . . . . . . . . . . . . . 5-9

Set the Module Switches . . . . . . . . . . . . . . . . . . . 5-10

Set-Up a Routing Table for the First

1756-DHRIO Module . . . . . . . . . . . . . . . . . . . 5-11

Set-Up a Routing Table for the Second

1756-DHRIO Module . . . . . . . . . . . . . . . . . . . 5-11

Configure Message Instructions . . . . . . . . . . . . . 5-12

DH+ Messaging From PLC-5 to PLC-5/C

on ControlNet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-13

Set the Module Switches . . . . . . . . . . . . . . . . . . . 5-14

Set-Up a Routing Table for the

1756-DHRIO Module . . . . . . . . . . . . . . . . . . . 5-15

Configure Message Instructions . . . . . . . . . . . . . 5-16

Chapter Summary and What’s Next . . . . . . . . . . . . . . 5-16

Table of Contents toc–iii

Publication 1756-6.5.14 - August 1998

PLC-5 or SLC-5/04 to Logix5550

Messaging Chapter 6

DH+ Messaging From a PLC-5 to One Logix5550

With One ControlLogix Chassis . . . . . . . . . . . . . . . . 6-2

Set the Module Switches . . . . . . . . . . . . . . . . . . . . 6-3

Set-Up a Controller Slot for the

1756-DHRIO Module . . . . . . . . . . . . . . . . . . . . 6-4

Configure Message Instructions . . . . . . . . . . . . . . 6-5

DH+ Messaging From a PLC-5 to Multiple

Logix5550s With One ControlLogix Chassis . . . . . . 6-6

Set the Module Switches . . . . . . . . . . . . . . . . . . . . 6-7

Set-Up a Controller Slot for the

1756-DHRIO Module . . . . . . . . . . . . . . . . . . . . 6-8

Set-Up a Routing Table for the

1756-DHRIO Module . . . . . . . . . . . . . . . . . . . . 6-9

Configure Local Message Instructions . . . . . . . . 6-10

Configure Remote Message Instructions . . . . . . . 6-11

DH+ Messaging From a SLC-5/04 to a Logix5550

With Multiple ControlLogix Chassis . . . . . . . . . . . . 6-12

Set the Module Switches . . . . . . . . . . . . . . . . . . . 6-13

Set-Up a Routing Table for the

1756-DHRIO Module . . . . . . . . . . . . . . . . . . . 6-14

Configure Message Instructions . . . . . . . . . . . . . 6-15

Chapter Summary and What’s Next . . . . . . . . . . . . . . 6-16

Logix5550 to PLC-5 or SLC-5/04

Messaging Chapter 7

Local DH+ Messaging From a Logix5550 to

a PLC-5 With One ControlLogix Chassis . . . . . . . . . 7-2

Set the Module Switches . . . . . . . . . . . . . . . . . . . . 7-3

Configure Message Instructions . . . . . . . . . . . . . . 7-4

DH+ Messaging From a Logix5550 to a PLC-5

With Multiple ControlLogix Chassis Over DH+ . . . . 7-5

Set the Module Switches . . . . . . . . . . . . . . . . . . . . 7-6

Set-Up a Routing Table for the First

1756-DHRIO Module . . . . . . . . . . . . . . . . . . . . 7-7

Set-Up a Routing Table for the Second

1756-DHRIO Module . . . . . . . . . . . . . . . . . . . . 7-7

Configure Message Instructions . . . . . . . . . . . . . . 7-8

DH+ Messaging From a Logix5550 to a SLC-5/04

Over ControlNet and DH+ With Multiple

ControlLogix Chassis . . . . . . . . . . . . . . . . . . . . . . . . . 7-9

Set the Module Switches . . . . . . . . . . . . . . . . . . . 7-10

Set-Up a Routing Table for the

1756-DHRIO Module . . . . . . . . . . . . . . . . . . . 7-11

Configure Message Instructions . . . . . . . . . . . . . 7-12

Chapter Summary and What’s Next . . . . . . . . . . . . . . 7-13

toc–iv Table of Contents

Publication 1756-6.5.14 - August 1998

Logix5550 to Logix5550

Messaging Chapter 8

CIP Messaging Between a Logix5550 and

a Logix5550 Over One Link . . . . . . . . . . . . . . . . . . . 8-2

Set the Module Switches . . . . . . . . . . . . . . . . . . . . 8-3

Configure Message Instructions . . . . . . . . . . . . . . 8-4

CIP Message Routing Between a Logix5550 and

a Logix5550 Over Two Links . . . . . . . . . . . . . . . . . . 8-5

Set the Module Switches . . . . . . . . . . . . . . . . . . . . 8-6

Configure Message Instructions . . . . . . . . . . . . . . 8-7

Chapter Summary and What’s Next . . . . . . . . . . . . . . . 8-8

Basics of Using Remote I/O Chapter 9

Introduction to Remote I/O . . . . . . . . . . . . . . . . . . . . . . 9-1

Selecting Devices That You Can Connect . . . . . . . . . . . 9-2

Designing a Remote I/O Network . . . . . . . . . . . . . . . . . 9-3

Network Design Guidelines . . . . . . . . . . . . . . . . . 9-3

Cable Design Guidelines . . . . . . . . . . . . . . . . . . . . 9-3

Configuring a DHRIO Channel as a RIO Scanner . . . . 9-5

Chapter Summary and What’s Next . . . . . . . . . . . . . . . 9-6

Communicating with Remote I/O Chapter 10

DHRIO Module Operation . . . . . . . . . . . . . . . . . . . . . 10-1

Exchanging I/O Data Between Adapters on

the RIO Link and the 1756-DHRIO Module . . 10-2

Exchanging I/O Data Between the Logix5550

and the 1756-DHRIO Module . . . . . . . . . . . . . 10-2

I/O Configuration Tree in Controller Organizer

in RSLogix 5000 . . . . . . . . . . . . . . . . . . . . . . . 10-3

RIO Scanner Status . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-3

Adapter Module I/O . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-3

Setting the Rate of Data Exchange Between the

Logix5550 and the 1756-DHRIO Module . . . . . . . . 10-4

Requested Packet Interval (RPI) . . . . . . . . . . . . . 10-4

RIO Scanner Status Update Rate With the

1756-DHRIO in a Local Chassis . . . . . . . . . . . 10-4

RIO Scanner Status Update Rate With the

1756-DHRIO Module in a Remote Chassis . . 10-4

Setting the Rate of I/O Data Exchange Between

the Logix5550 and the 1756-DHRIO Module . . . . . 10-5

Minimum Requested Packet Intervals (RPIs) . . . 10-6

Adapter Module I/O Update Rate with

the 1756-DHRIO Module in the Local Chassis 10-7

Adapter Module I/O Update Rate with the

1756-DHRIO Module in the Remote Chassis . 10-8

RIO Scanner Failure Notification . . . . . . . . . . . . . . . . 10-9

RIO Adapter Failure Notification . . . . . . . . . . . . . . . . 10-9

Inhibiting the DHRIO Module Connections . . . . . . . 10-10

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