Allen-Bradley ControlLogix SynchLink 1756-SYNCH Manuale utente

ControlLogix

SynchLink Module

1756-SYNCH

User Manual

Allen-Bradley Parts

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.

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.

Rockwell Automation

Support

Before you contact Rockwell Automation for technical assistance, we

suggest you please review the troubleshooting information contained

in this publication first.

If the problem persists, call your local Rockwell Automation

representative or contact Rockwell Automation in one of the

following ways:

Your Questions or Comments on this Manual

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

enclosed How Are We Doing form.

Phone United

States/Canada 1.440.646.5800

Outside United

States/Canada You can access the phone number for your

country via the Internet:

1. Go to http://www.ab.com

2. Click on Product Support

(http://support.automation.rockwell.com)

3. Under Support Centers, click on Contact

Information

Internet ⇒1. Go to http://www.ab.com

2. Click on Product Support

(http://support.automation.rockwell.com)

Allen-Bradley Parts

1Publication 1756-UM521B-EN-P - September 2001

Preface

About This Preface

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

describes what this preface contains and its location.

Who Should Use

This Manual

You must be able to program and operate an Allen-Bradley

ControlLogix™ Logix controller and ControlLogix I/O modules to

efficiently use your SynchLink™ module.

We assume that you know how to do this in this manual. If you do

not, refer to Related Documentation, before you attempt to use this

module.

Purpose of This Manual

This manual describes how to install, configure, and troubleshoot

your ControlLogix SynchLink module.

For information about: See page:

Who Should Use This Manual Preface-1

Purpose of This Manual Preface-1

Related Products and Documentation Preface-4

IMPORTANT SynchLink should be used in conjunction with a

standard control network, such as ControlNet or

Ethernet. A standard network is used for general

control interlocking and transfer of diagnostic data

across the system.

SynchLink does not function as a standard control

network (e.g. it broadcasts data in a unidirectional

manner).

Allen-Bradley Parts

Publication 1756-UM521B-EN-P - September 2001

Preface 2

What This Manual Contains

This user manual contains the following sections:

Description of the SynchLink module -

Description of how the SynchLink module

synchronizes time in the ControlLogix system

Description of the SynchLink module

certifications and general features

Description of how to install the SynchLink

module and connect the fiber optic cable

Description of how to configure the

SynchLink module with RSLogix 5000

Description of howto troubleshoot

the SynchLink module

LINK

SYNC

LINK

COMM

SynchLink

Publication 1756-UM521B-EN-P - September 2001

Preface 3

Listing of the SynchLink module

specifications

Appendix B - Configuring the Star

Configuration

Example of how to configure the

SynchLink Star Configuration

Example of how to configure the

SynchLink Daisy Chain Configuration

Example of how to configure the

SynchLink Ring Configuration

Glossary of terms used with the

SynchLink module Indexoftermsand conceptsexplained

thoughout this user manual

Appendix E - Software

Configuration Tags

Complete list of all the input and

output data tags

Allen-Bradley Parts

Publication 1756-UM521B-EN-P - September 2001

Preface 4

Related Documentation

Catalog

number: Document title: Pub. number:

1756-SYNCH ControlLogix SynchLink Module Installation

Instructions 1756-IN575

1756-A4, -A7,

-A10, -A13 ControlLogix Chassis Installation Instructions 1756-IN080B

1756-PA72,

-PB72 ControlLogixPowerSupplyInstallationInstructions 1756-5.67

1756-PA75,

-PB75 ControlLogixPowerSupplyInstallationInstructions 1756-5.78

1756-Series ControlLogix Module Installation Instructions

(Each module has separate installation document.) Multiple 1756-IN

numbers

1756-Series ControlLogix System User Manual 1756-UM001

Multiple

numbers SynchLink Design Guide 1756-TD008

1751-SLBA SynchLink Base Block Installation Instructions 1751-IN001

1751-SL4SP SynchLink 4-port Splitter Block Installation

Instructions 1751-IN002

1751-SLBP SynchLink Bypass Switch Block Installation

Instructions 1751-IN003

1756-DM ControlLogix Drive Module Installation Instructions 1756-IN577

1756-DM ControlLogix Drive Module User Manual 1756-UM522

PowerFlex 700S User Manual 20D-UM001

iPublication 1756-UM521B-EN-P - September 2001

Table of Contents

Chapter 1

What is the 1756-SYNCH module?

What is the ControlLogix SynchLink Module? . . . . . . . . . . . 1-1

What Data Does the SynchLink Module Transfer? . . . . . 1-1

Why Synchronize Time Between Chassis? . . . . . . . . . . . 1-2

What Are Some of the Features Available On the

ControlLogix SynchLink Module? . . . . . . . . . . . . . . . . . 1-2

Connecting a SynchLink Module to a SynchLink System . . . 1-3

Physical Features of the ControlLogix SynchLink Module 1-4

Using Module Identification and Status Information . . . . . . 1-5

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

Removal and Insertion Under Power . . . . . . . . . . . . . . . . . 1-7

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

Chapter 2

Time Synchronization in the

ControlLogix System

Using the Coordinated System Time (CST) . . . . . . . . . . . . . 2-2

Time Synchronization in a Distributed Control System . . . . 2-2

Time Synchronization in the SynchLink System . . . . . . . . . 2-2

SynchLink Node Clock. . . . . . . . . . . . . . . . . . . . . . . . . 2-3

How Do the CST Clock and SynchLink Node

Clock Work Together?. . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5

Configuring Time Mastership Functionality. . . . . . . . . . . . . 2-6

What are the SynchLink Configurations?. . . . . . . . . . . . . . . 2-8

Star Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-8

Daisy Chain Configuration . . . . . . . . . . . . . . . . . . . . . . 2-9

Ring Configuration. . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-10

Cable Usage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-11

Chapter Summary and What’s Next . . . . . . . . . . . . . . . . . . 2-11

Chapter 3

SynchLink Module Features

General Module Features. . . . . . . . . . . . . . . . . . . . . . . . . . 3-1

Removal and Insertion Under Power (RIUP) . . . . . . . . . 3-2

Module Fault Reporting . . . . . . . . . . . . . . . . . . . . . . . . 3-3

Fully Software Configurable . . . . . . . . . . . . . . . . . . . . . 3-3

LED Status Information. . . . . . . . . . . . . . . . . . . . . . . . . 3-3

Class I Division 2 Certification . . . . . . . . . . . . . . . . . . . 3-4

Agency Certification. . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4

Configurable Module Features . . . . . . . . . . . . . . . . . . . . . . 3-4

Communications Format. . . . . . . . . . . . . . . . . . . . . . . . 3-5

Electronic Keying. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-9

Requested Packet Interval . . . . . . . . . . . . . . . . . . . . . . 3-11

SynchLink Transmitted Axes. . . . . . . . . . . . . . . . . . . . . 3-13

Transmitted Direct Words. . . . . . . . . . . . . . . . . . . . . . . 3-14

CST and SynchLink Mastership. . . . . . . . . . . . . . . . . . . 3-16

Chapter Summary and What’s Next . . . . . . . . . . . . . . . . . . 3-16

Allen-Bradley Parts

Publication 1756-UM521B-EN-P - September 2001

Table of Contents ii

Chapter 4

Installing the SynchLink Module

Noting the Power Requirements . . . . . . . . . . . . . . . . . . . . 4-1

Installing the Module. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2

Connecting the Fiber Optic Cable . . . . . . . . . . . . . . . . . . . 4-3

Removing the Module. . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4

Chapter Summary and What’s Next . . . . . . . . . . . . . . . . . . 4-5

Chapter 5

ConfiguringtheSynchLinkModule

RSLogix 5000 Configuration Software. . . . . . . . . . . . . . . . . 5-1

Overview of the Configuration Process . . . . . . . . . . . . . . . 5-2

Choose a SynchLink Configuration. . . . . . . . . . . . . . . . . . . 5-3

Star Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3

Daisy Chain Configuration.. . . . . . . . . . . . . . . . . . . . . . 5-3

Ring Configuration. . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3

Create a New RSLogix 5000 Project. . . . . . . . . . . . . . . . 5-4

Add a SynchLink Module . . . . . . . . . . . . . . . . . . . . . . . 5-5

Configure the SynchLink Module . . . . . . . . . . . . . . . . . 5-6

Download Configuration . . . . . . . . . . . . . . . . . . . . . . . 5-8

Changing Configuration After Module Operation Has Begun 5-9

Chapter Summary and What’s Next . . . . . . . . . . . . . . . . . . 5-10

Chapter 6

Troubleshooting the

SynchLink Module

Using the Status Indicators. . . . . . . . . . . . . . . . . . . . . . . . . 6-1

Using RSLogix 5000 to Troubleshoot the Module . . . . . . . . 6-3

Determining Fault Type . . . . . . . . . . . . . . . . . . . . . . . . 6-5

Using Diagnostic Counters. . . . . . . . . . . . . . . . . . . . . . . . . 6-6

Message Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . 6-7

Message Configuration. . . . . . . . . . . . . . . . . . . . . . . . . 6-8

Retrieving and Resetting Diagnostic Counters. . . . . . . . . . . 6-11

Chapter Summary and What’s Next . . . . . . . . . . . . . . . . . . 6-11

Appendix A

Specifications Appendix B

Configuring the Star Configuration

Using Remote Axis Control . . . . . . . . . . . . . . . . . . . . . . . . B-2

Configure Time Master Chassis - Master Node. . . . . . . . B-2

Configure Time Slave Chassis - End Node. . . . . . . . . . . B-8

Configure Time Slave Chassis - End Node. . . . . . . . . . B-13

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