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Rockwell Automation 1753-DNSI DeviceNet Safety Scanner for GuardPLC Controllers User Manual

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Publication 1753-UM002A-EN-P - July 2005

Table of Contents

Preface

Who Should Use this Manual. . . . . . . . . . . . . . . . . . . . . . . P-1
Purpose of This Manual. . . . . . . . . . . . . . . . . . . . . . . . . . . P-1
Related Documentation . . . . . . . . . . . . . . . . . . . . . . . . . . . P-2
Common Techniques Used in This Manual. . . . . . . . . . . . . P-2
Understanding Terminology . . . . . . . . . . . . . . . . . . . . . . . P-3

Chapter 1

Before You Begin

Safety Concept . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
DeviceNet Safety Scanner Communications . . . . . . . . . . . . 1-2

How the 1753-DNSI Communicates . . . . . . . . . . . . . . . 1-2
Understand Data Signals. . . . . . . . . . . . . . . . . . . . . . . . 1-3
How Data Tables Work . . . . . . . . . . . . . . . . . . . . . . . . 1-4
How to Distinguish Between Standard Data and Safety Data
in RSLogix Guard PLUS! . . . . . . . . . . . . . . . . . . . . . . . . 1-4

Role of RSNetWorx for DeviceNet and RSLogix Guard PLUS! 1-5
DeviceNet Safety Scanner Features. . . . . . . . . . . . . . . . . . . 1-6

Hardware Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6
Supported Connections . . . . . . . . . . . . . . . . . . . . . . . . 1-7

Physical Layout of the DeviceNet Safety System . . . . . . . . . 1-8

DeviceNet Safety I/O Performance Factors . . . . . . . . . . 1-8
Choose a Communication Rate for the Network . . . . . . 1-9
Assign an Address to Each Device . . . . . . . . . . . . . . . . 1-10

Chapter 2

Install the 1753-DNSI

General Safety Information . . . . . . . . . . . . . . . . . . . . . . . . 2-1

Preventing Electrostatic Discharge . . . . . . . . . . . . . . . . 2-2

Mount the Scanner . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2

DIN Rail Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3
Panel Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4

Ground the Scanner . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4
Connect Power Source . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5
Make Communication Connections . . . . . . . . . . . . . . . . . . 2-5

DeviceNet Connections . . . . . . . . . . . . . . . . . . . . . . . . 2-6
High-speed Safety Protocol (HSP) Connections . . . . . . . 2-7

Chapter 3

Set Up Your DeviceNet Network

Connect a Computer to the DeviceNet Network . . . . . . . . . 3-1

Configure a Driver for the Network . . . . . . . . . . . . . . . 3-1
Make Sure the Driver Works. . . . . . . . . . . . . . . . . . . . . 3-2

Commission All Nodes . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2
Browse the Network . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3
Safety Reset (Optional) . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4
Set Passwords (Optional). . . . . . . . . . . . . . . . . . . . . . . . . . 3-5

Set or Change a Password . . . . . . . . . . . . . . . . . . . . . . 3-5