Rockwell Automation 1769-SDN User Manual

1769-SDN DeviceNet Scanner Module

Catalog Numbers User Manual

1769-SDN

Important User Information

WARNING

IMPORTANT

ATTENTION

SHOCK HAZARD

BURN HAZARD

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 Automation sales office or online at http://www.rockwellautomation.com/literature/ between solid state equipment and hard-wired electromechanical devices. Because of this difference, and also because of the wide variety of uses 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 Rockwell Automation, Inc. 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 associated with any particular installation, Rockwell Automation, Inc. cannot assume responsibility or liability for actual use based on the examples and diagrams.

No patent liability is assumed by Rockwell Automation, Inc. with respect to use of information, circuits, equipment, or software described in this manual.

Reproduction of the contents of this manual, in whole or in part, without written permission of Rockwell Automation, Inc., is prohibited.

Throughout this manual, when necessary, we use notes to make you aware of safety considerations.

available from your local Rockwell

) describes some important differences

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

Identifies information about practices or circumstances that can lead to personal injury or death, property damage, or economic loss. Attentions help you identify a hazard, avoid a hazard, and recognize the consequence

Labels may be on or inside the equipment, for example, a drive or motor, to alert people that dangerous voltage may be present.

Labels may be on or inside the equipment, for example, a drive or motor, to alert people that surfaces may reach dangerous temperatures.

Allen-Bradley, Compact I/O, CompactLogix, MicroLogix, POINT I/O, PowerFlex 40, Rockwell Automation, RSLogix 500, RSLogix 5000, RSLinx, RSNetWorx for DeviceNet, and TechConnect are trademarks of Rockwell Automation, Inc.

Trademarks not belonging to Rockwell Automation are property of their respective companies.

Summary of Changes

The information below summarizes the changes to this manual since the last printing.

We have included change bars as shown to the right of this paragraph to help you find new and updated information in this release of the manual. The table below lists the changes that have been made to this revision of the manual.

Topic Page

Automatically Configure a DeviceNet Network

Updated information Index

Chapter 4

3Publication 1769-UM009E-EN-P - August 2009 3

Summary of Changes

4 Publication 1769-UM009E-EN-P - August 2009

Preface

Overview

Quick Start for Experienced Users

About This Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Who Should Use This Manual. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Conventions in This Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Additional Resources . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Chapter 1

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Module Features. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Scanner Module Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Communication with Your Slave Devices . . . . . . . . . . . . . . . . . . . . . . 14

1769-SDN Scanner Module Data Tables . . . . . . . . . . . . . . . . . . . . . . . 15

Input Data Image - MicroLogix 1500. . . . . . . . . . . . . . . . . . . . . . . 15

Output Data Image - MicroLogix 1500 . . . . . . . . . . . . . . . . . . . . . 15

Input Data Image - CompactLogix. . . . . . . . . . . . . . . . . . . . . . . . . 16

Output Data Image - CompactLogix . . . . . . . . . . . . . . . . . . . . . . . 16

RSNetWorx for DeviceNet Software as a Configuration Tool . . . . . . 17

Chapter 2

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Required Tools and Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

What You Need to Do. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Installation and Wiring

Chapter 3

Power Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

General Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

Hazardous Location Considerations. . . . . . . . . . . . . . . . . . . . . . . . 24

Preventing Electrostatic Discharge . . . . . . . . . . . . . . . . . . . . . . . . 25

Removing Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Reducing Noise . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Protecting the Circuit Board from Contamination . . . . . . . . . . . . 26

System Planning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

System Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

System Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

Minimum Spacing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

Panel Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

DIN Rail Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

Replace the Scanner Module within a System. . . . . . . . . . . . . . . . . . . . 31

Field Wiring Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

Grounding the Scanner Module . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

Scanner Module Power-up. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

5Publication 1769-UM009E-EN-P - August 2009 5

Table of Contents

Automatically Configure a DeviceNet Network

Chapter 4

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

How AutoScan Operates . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

Determine If You Can Use AutoScan. . . . . . . . . . . . . . . . . . . . . . . . . . 38

How AutoScan Effects Your Network. . . . . . . . . . . . . . . . . . . . . . . . . 38

Connect Each Device to the Network . . . . . . . . . . . . . . . . . . . . . . . . . 39

Set the Baud Rate of a Device Via a DeviceNet

Configuration Terminal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

Set the Node Address of a Device Via a DeviceNet

Configuration Terminal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

Add the Scanner to the RSLogix 5000 Project . . . . . . . . . . . . . . . . . . . 44

Add the Scanner to the I/O Configuration Folder . . . . . . . . . . . . 44

Define the Properties of the Scanner . . . . . . . . . . . . . . . . . . . . . . . 45

Implement AutoScan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

Initiate AutoScan Via the User Program . . . . . . . . . . . . . . . . . . . . 49

Initiate AutoScan via the 193-DNCT Terminal. . . . . . . . . . . . . . . 51

Additional Considerations Regarding AutoScan . . . . . . . . . . . . . . . . . 53

Type of Connection that the Scanner Sets Up. . . . . . . . . . . . . . . . 56

Access Device Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57

Put the Scanner in Run Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60

Manually Configure the DeviceNet Network

Chapter 5

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61

Software Versions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61

Install the Software. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62

Use RSLinx Software to Configure Your DeviceNet Driver. . . . . . . . 62

Use RSNetWorx for DeviceNet Software to Configure

the 1769-SDN Scanlist. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64

Set Up an Online Connection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64

Set the Node Address . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67

Configure the I/O Devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70

General Tab . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71

Module Tab . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72

Scanlist Tab . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76

Input Tab . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78

Auto Device Replacement (ADR) Tab. . . . . . . . . . . . . . . . . . . . . . 80

Summary Tab. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84

Download and Save Your Configuration . . . . . . . . . . . . . . . . . . . . 84

6 Publication 1769-UM009E-EN-P - August 2009

DeviceNet I/O Image

Table of Contents

Chapter 6

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87

1769-SDN Input Structure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87

MicroLogix 1500 Status Structure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88

Scan Counter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88

Device Failure Array . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89

Autoverify Failure Array . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89

Slave Device Idle Array . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90

Active Node Array. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91

Scanner Module Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91

Reserved Array. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92

Device Status Array . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92

Module Status Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93

CompactLogix Status Structure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94

Scan Counter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94

Device Failure Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95

Autoverify Failure Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95

Device Idle Register. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96

Active Node Register. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97

Status Display. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97

Scanner Address. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97

Scanner Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97

Scrolling Device Address. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97

Scrolling Device Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98

Device Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98

CompactLogix Status Register. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98

Run . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98

Fault . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99

Disable Network . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99

Device Failure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99

Autoverify Failure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99

Comm Failure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99

Dup Node Failure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100

Dnet Power Detect . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100

CompactLogix Command Register . . . . . . . . . . . . . . . . . . . . . . . . . . . 100

Run . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100

Fault . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101

Disable Network . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101

Halt Scanner. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101

Reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101

Input Data Image . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102

1769-SDN Output Structure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102

Publication 1769-UM009E-EN-P - August 2009 7

Table of Contents

Use the 1769-SDN Scanner Module with MicroLogix Controllers

Troubleshooting

Chapter 7

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103

MicroLogix 1500 Controllers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103

RSLogix 500 Programming Software I/O Configuration . . . . . . . . . 104

Start the Project . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105

I/O Configuration Screen. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 106

Read I/O Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107

Installed I/O . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107

1769-SDN Scanner Module Configuration . . . . . . . . . . . . . . . . . 108

Changing the 1769-SDN Configuration. . . . . . . . . . . . . . . . . . . . 109

Backplane Messaging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111

PCCC Messaging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111

Program Upload and Download . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 112

Configure a Local DeviceNet Message . . . . . . . . . . . . . . . . . . . . . . . . 113

Message Setup Dialog . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113

MSG Instruction Error Codes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120

Chapter 8

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 121

Status Indicators. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 121

Error Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 124

1769-SDN DeviceNet Class Codes

CompactLogix Backup on the DeviceNet Network

Glossary

Index

Appendix A

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 127

Appendix B

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 129

How the Backup Works. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 130

Backup System Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . 131

Configure the Backup System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 132

Develop the CompactLogix Backup Application. . . . . . . . . . . . . . . . 134

Backup Heartbeat Configuration Rungs. . . . . . . . . . . . . . . . . . . . 134

Reading Backup State Rung . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 138

Reading Backup Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 140

Using Indicators to Check Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . 141

Module Status Indicator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 141

Node Address and Status Display. . . . . . . . . . . . . . . . . . . . . . . . . 142

Development and Debugging Tips . . . . . . . . . . . . . . . . . . . . . . . . . . . 144

8 Publication 1769-UM009E-EN-P - August 2009

Read this preface to familiarize yourself with the rest of the manual.

IMPORTANT

Preface

About This Manual

This manual is a user manual for the Compact I/O 1769-SDN DeviceNet scanner module. It describes the procedures you use to install, program, and troubleshoot your scanner module. This manual:

• provides instructions on installing the scanner module.

• contains information about using the scanner module on the DeviceNet network.

• provides tips on troubleshooting the scanner module.

• contains application examples to show how the scanner module is used with various programmable controllers.

This manual focuses on the 1769-SDN scanner module with a MicroLogix 1500 control system on the DeviceNet network. Topics covered include using AutoScan, configuring, bridging, connecting, and controlling your DeviceNet network.

For information about using the 1769-SDN scanner module with a CompactLogix system, refer to DeviceNet Modules in Logix5000 Control Systems User Manual, publication

DNET-UM004

Who Should Use This Manual

Use this manual if you are responsible for designing, installing, programming, or troubleshooting control systems that use Rockwell Automation programmable controllers.

You should have a basic understanding of electrical circuitry and familiarity with relay logic. If you do not, obtain the proper training before using this product.

9Publication 1769-UM009E-EN-P - August 2009 9

Preface Preface

Conventions in This Manual

The following conventions are used throughout this manual:

• Bulleted lists such as this one provide information, not procedural steps.

• Numbered lists provide sequential steps or hierarchical information.

Additional Resources

The following documents contain additional information concerning Rockwell Automation products. Contact your local Rockwell Automation distributor to order hard copy publications. For electronic copies, go to

http://literature.rockwellautomation.com

Resource Description

DeviceNet Modules in Logix5000 Control Systems User Manual, publication

DNET-UM004

ControlNet Modules in Logix5000 Control Systems User Manual, publication

CNET-UM001

RSNetWorx for DeviceNet Getting Results Guide, publication

CompactLogix System User Manual, publication

MicroLogix 1500 Programmable Controllers User Manual, publication

Compact I/O Analog Modules User Manual, publication

DeviceNet Interface User Manual, publication

DeviceNet Media Design and Installation Guide, publication

Industrial Automation Wiring and Grounding Guidelines, publication

National Electrical Code - Published by the National Fire Protection Association of Boston, MA.

DNET-GR001

1769-UM007

1764-UM001

1769-UM002

1761-UM005

DNET-UM072

1770-4.1

Describes configuring the CompactLogix controllers on the DeviceNet network.

Describes configuring the CompactLogix controllers on the ControlNet network.

Describes using RSNetWorx for DeviceNet software (catalog number 9357-DNETL3).

Describes planning, mounting, wiring, and troubleshooting your CompactLogix system. This manual focuses on the 1769-L20 and 1796-L30 CompactLogix controllers.

Planning, mounting, wiring, and troubleshooting your MicroLogix 1500 system

Installing, configuring, and using Compact I/O analog modules

How to install and use the DeviceNet Interface (catalog number 1761-NET-DNI)

DeviceNet network planning information

Grounding and wiring Allen-Bradley programmable controllers

Wire sizes and types for grounding electrical equipment

10 Publication 1769-UM009E-EN-P - August 2009

Overview

Chapter

Introduction

This chapter provides an overview of communication between the CompactLogix and MicroLogix 1500 programmable controllers and DeviceNet devices via the 1769-SDN scanner module.

Topic Page

Module Features 12 Scanner Module Operation 13 Communication with Your Slave Devices 14 1769-SDN Scanner Module Data Tables 15 RSNetWorx for DeviceNet Software as a Configuration Tool 17

The configuration data tables and the RSNetWorx for DeviceNet dialog boxes used to configure the data tables are also described in this chapter. Before configuring your scanner, you must understand these items:

• Data exchange between the programmable controller and DeviceNet devices through the scanner

• User-configurable scanner module data tables

• Role of RSNetWorx for DeviceNet software

These topics are covered briefly in this chapter and in more detail throughout the rest of the manual.

11Publication 1769-UM009E-EN-P - August 2009 11

Chapter 1 Overview

Module Features

Use the following figure to identify the features of the scanner.

Module Features

Item Description

1 Bus lever (with locking function) 2A Upper DIN rail latch 2B Lower DIN rail latch 3A Upper panel mounting tab 3B Lower panel mounting tab 4 Module and Network status LEDs 5 Address and Error numeric display 6 Grounding screw 7A DeviceNet mating male receptacle 7B Removable DeviceNet female connector 8A Movable bus connector with female pins 8B Bus connector with male pins 9 Nameplate label

12 Publication 1769-UM009E-EN-P - August 2009

Overview Chapter 1

CompactLogix controller with 1769-SDN scanner

MicroLogix 1500 controller with 1769-SDN scanner

PLC with RSNetWorx for DeviceNet software

1784-PCD Interface card

1734 POINT I/O E3 Overload

Relay

PowerFlex 40 Drive Enhanced DeviceNet Communications Module

MicroLogix 1000 Controller with 1761-NET-DNI

MicroLogix 1200 Controller with 1761-NET-DNI

Scanner Module Operation

In a typical configuration, the scanner module acts as an interface between DeviceNet devices and the programmable controller.

Device Network

The scanner module communicates with DeviceNet devices over the network to:

• Read inputs from slave devices

• Write outputs to slave devices

• Communicate with peer devices (messaging)

• Upload/download programs to a 1764-LRP based MicroLogix 1500 controller across a DeviceNet network

Publication 1769-UM009E-EN-P - August 2009 13

Chapter 1 Overview

IMPORTANT

Communication with Your Slave Devices

The scanner module communicates with devices via strobe, poll, change of state, or cyclic I/O messages. It uses these messages to solicit data from or deliver data to each device. Data received from the devices, input data, is organized by the scanner module and made available to the controller. Data sent from your controller, output data, is organized in the scanner module and sent on to your devices.

• A strobe message is a multicast transfer of data that is 64 bits in length sent by the scanner module that initiates a response from each strobed slave device.

The strobe devices respond with their data, which can be as much as 8 bytes of information. As a slave device, the scanner module does not support the strobe message.

• A poll message is a point-to-point transfer of data from 0...128 bytes sent by the scanner module to the slave device.

The poll message also initiates a response from each poll slave. The slave device responds with its input data from 0...128 bytes.

• A change-of-state message is a transfer of data sent whenever a data change occurs.

A user-configurable heartbeat rate allows devices to indicate proper operation during intervals between data changes.

• A cyclic message is a transfer of data sent at a specific user-configurable rate, such as every 50 ms.

Throughout this document, input and output are defined from the controller’s point of view. Output is data sent from the controller to a device. Input is data collected by the controller from a device.

In addition to I/O messaging, the scanner module also supports PCCC and CIP explicit messaging, defined later in this manual.

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Overview Chapter 1

1769-SDN Scanner Module Data Tables

The scanner module uses input and output data images to transfer data, status, and command information between the scanner module and the MicroLogix controller to manage the flow of data between your controller and network devices.

Input Data Image - MicroLogix 1500

The input data image is transferred from the scanner module to the controller across the Compact I/O bus.

Word Description Data Type

0…65 Status structure 66-word array 66…245 DeviceNet slave inputs 180-word array

See

Chapter 6

for definitions of the Status structure.

Output Data Image - MicroLogix 1500

The output data image is transferred from the controller to the scanner module across the Compact I/O bus.

Word Description Data Type

0 and 1 Module command array 2-word array 2…181 DeviceNet slave outputs 180-word array

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Chapter 1 Overview

Module Command Array Bit Assignments

Output Word

0 0 Run This bit controls when the module scans its

1 16…31

(1)

Bit Description Behavior

mapped slave devices. When set (1), the scanner module will process I/O data as defined by its scanlist. The Fault and Disable Network command bits must be clear (0) to scan the network.

1 Fault When set, the scanner’s I/O mode will be

Halt; messaging will still operate. The fault bit is primarily used to artificially set the slave devices into a fault state due to some event or condition within the control program.

2 Disable network When set, the scanner module is

functionally removed from the network.

4 Reset Restarts access to the DeviceNet network. 5…15

Do not manipulate reserved bits. Doing so may interfere with future compatibility.

Reserved

(1)

N/A

Input Data Image - CompactLogix

The input data image is transferred from the scanner module to the controller across the Compact I/O bus.

Word Description Data Type

0…89 DeviceNet slave inputs 90-DINT array

Output Data Image - CompactLogix

The output data image is transferred from the controller to the scanner module across the Compact I/O bus.

Word Description Data Type

0…89 DeviceNet slave outputs 90-DINT array

For additional information about the CompactLogix image structure, refer to the DeviceNet Modules in Logix5000 Control Systems User Manual, publication

DNET-UM004

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Overview Chapter 1

RSNetWorx for DeviceNet Software as a Configuration Tool

RSNetWorx for DeviceNet software is used to configure the scanner’s slave devices. This software tool connects to the scanner module over the DeviceNet network via an RS-232 interface (1770-KFD module) or PC card (1784-PCD or 1784-PCID).

We recommend RSNetworx for DeviceNet software, version 3.00 or later.

If your RSNetWorx configuration software does not include the required electronic data sheet (EDS) file, go to

Register the new EDS file by using the EDS wizard in RSNetWorx for DeviceNet software. Access the wizard from the Tools menu. This configuration tool lets you to identify all of the DeviceNet devices and their locations in your system.

The controller must be in Program mode, or the scanner module in Idle mode (bit 0 of the Module Command Array = 0) for the scanner module to accept the configuration information.

http://www.ab.com/networks/eds

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Chapter 1 Overview

The main RSNetWorx dialog.

Click the Input tab and click the AutoMap button to automatically map input devices.

Click the Output tab and click the AutoMap button to automatically map output devices.

Click Online and select the driver to browse the network.

Double-click the 1769-SDN icon to access the 1769-SDN scanner module.

Click on the Scanlist tab to access the scanlist.

Move the device into the scanlist.

Click Download to Scanner to download the scanlist.

Double-click the device in the scanlist to edit a device’s I/O parameters.

RSNetWorx Configuration Dialog Map

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Quick Start for Experienced Users

Chapter

Introduction

Required Tools and Equipment

This chapter helps you get started using the 1769-SDN scanner module.

Topic Page

Required Tools and Equipment 19 What You Need to Do 20

Procedures are based on the assumption that you have an understanding of Rockwell Automation controllers. You should understand electronic process control and be able to interpret the ladder logic instructions required to generate the electronic signals that control your application. Because it is a start-up guide for experienced users, this chapter does not contain detailed explanations about the procedures listed.

Have the following tools and equipment ready:

• Personal computer

• Programmable controller: CompactLogix or MicroLogix 1500 system

• 1770-KFD RS-232 DeviceNet adapter or 1784-PCIDS, 1784-U2DN DeviceNet interface card

• For network communication: RSLinx software, version 2.30 or later

• For DeviceNet network configuration:

– RSNetWorx for DeviceNet software, version 3.00 or later

• For ladder logic programming:

– RSLogix 500 programming software, version 5.00.10 or later, or – RSLogix 5000 programming software, version 8.02 or later

• 1769-SDN scanner module

• Mounting hardware

• Screwdriver

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Chapter 2 Quick Start for Experienced Users

ATTENTION

What You Need to Do

Follow these steps to get started using the 1769-SDN scanner module.

1. Verify planned system configuration.

a. Ensure system power supply has sufficient current.

Maximum Current Draw

Module 5V DC 24V DC

1769-SDN 440 mA 0 mA

The scanner module cannot be located more than four modules away from the system power supply.

b. Verify that the DeviceNet network has adequate power.

DeviceNet Power Requirements

Module DeviceNet Power Requirements

1769-SDN N.E.C. Class 2

90 mA @ 11V DC, max.

110 mA @ 25V DC, max.

2. Remove power.

200 mA for 1.5 ms inrush

Remove power before removing or inserting this module. When you remove or insert a module with power applied, an electrical arc may occur. An electrical arc can cause personal injury or property damage by:

• sending an erroneous signal to your system’s field devices, causing unintended machine motion.

• causing an explosion in a hazardous environment.

Electrical arcing causes excessive wear to contacts on both the module and its mating connector and can lead to premature failure.

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Quick Start for Experienced Users Chapter 2

3. Assemble and mount the I/O bank.

The scanner module can be attached to an adjacent controller, power supply, or I/O module. The scanner module can be panel or DIN-rail mounted. Modules can be assembled before or after mounting.

Be sure to observe minimum spacing guidelines for adequate ventilation.

4. Ground the scanner module and complete the DeviceNet network wiring.

5. Apply power to the system.

6. Be sure that the programming software and equipment is ready.

7. Use RSLinx to configure drivers.

8. Use RSNetWorx for DeviceNet software to configure the 1769-SDN

scanner module and the DeviceNet devices.

9. Use RSLogix software to create your project and ladder logic.

10. Start the system.

a. Apply power. b. Download your program and put the controller into Run mode. c. status indicators turn on solid green.

11. Monitor the scanner module status to check if the scanner module is operating correctly.

Module status is reported by the status indicators and numeric display on the front of the scanner module. The information is also stored in the scanner module’s input data file, so these bits can be used in your control program to flag an error.

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Chapter 2 Quick Start for Experienced Users

Notes:

22 Publication 1769-UM009E-EN-P - August 2009

Chapter

Installation and Wiring

This chapter describes how to install and wire the 1769-SDN scanner module. This table describes what this chapter contains and where to find specific information.

Topic Page

Power Requirements 23 General Considerations 24 System Planning 26 System Assembly 27 System Mounting 28 Replace the Scanner Module within a

System

Power Requirements

Field Wiring Connections 32 Scanner Module Power-up 33

The scanner module receives power through the Compact I/O bus interface from the +5V DC system power supply.

Maximum Current Draw

Module 5V DC 24V DC

1769-SDN 440 mA 0 mA

The scanner module also draws power from the DeviceNet network.

DeviceNet Power Requirements

Module DeviceNet Power Requirements

1769-SDN N.E.C. Class 2

90 mA @ 11V DC, max.

110 mA @ 25V DC, max.

200 mA for 1.5 ms, inrush

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Chapter 3 Installation and Wiring

WARNING

General Considerations

The Compact I/O system is suitable for use in an industrial environment when installed in accordance with these instructions. Specifically, this equipment is intended for use in clean, dry environments (Pollution Degree

(1)

) and to circuits not exceeding Over Voltage Category II

2 60664-1).

(3)

(2)

(IEC

Hazardous Location Considerations

This equipment is suitable for use in Class I, Division 2, Groups A, B, C, D or nonhazardous locations only. The following WARNING statement applies to use in hazardous locations.

EXPLOSION HAZARD Substitution of components may impair suitability for Class I,

Division 2. Do not replace components or disconnect equipment unless

power has been switched off or the area is known to be nonhazardous.

Do not connect or disconnect components unless power has been switched off or the area is known to be nonhazardous.

This product must be installed in an enclosure. All wiring must comply with N.E.C. article 501-4(b).

(1)

Pollution Degree 2 is an environment where, normally, only nonconductive pollution occurs except that occasionally a temporary conductivity caused by condensation shall be expected.

(2)

Over Voltage Category II is the load level section of the electrical distribution system. At this level, transient voltages are controlled and do not exceed the impulse voltage capability of the product’s insulation.

(3)

Pollution Degree 2 and Over Voltage Category II are International Electrotechnical Commission (IEC) designations.

24 Publication 1769-UM009E-EN-P - August 2009

Preventing Electrostatic Discharge

ATTENTION

Electrostatic discharge (ESD) can damage integrated circuits or semiconductors if you touch the bus connector pins. Follow these guidelines when you handle the module:

• Touch a grounded object to discharge static potential.

• Wear an approved wrist-strap grounding device.

• Do not touch the bus connector or connector pins.

• Do not touch circuit components inside the module.

• Use a static-safe work station, if available.

• Keep the module in its static-shield box when it is not in use.

Installation and Wiring Chapter 3

Removing Power

• sending an erroneous signal to your system’s field devices, causing unintended machine motion.

• causing an explosion in a hazardous environment.

Electrical arcing causes excessive wear to contacts on both the module and its mating connector and can lead to premature failure.

Reducing Noise

We recommend installing this module in an industrial enclosure to reduce the effects of electrical interference. Group your modules to minimize adverse effects from radiated electrical noise and heat.

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Chapter 3 Installation and Wiring

Protecting the Circuit Board from Contamination

The printed circuit boards of the modules must be protected from dirt, oil, moisture, and other airborne contaminants. We recommend installing the system in an enclosure suitable for the environment to protect these boards. The interior of the enclosure should be kept clean and the enclosure door should be kept closed whenever possible.

System Planning

Consider the following when planning your system:

• The scanner module can communicate with up to 63 DeviceNet devices.

• The scanner, as a master, can own up to 63 slave I/O nodes.

• The scanner module can simultaneously be a master and a slave owned by another DeviceNet master.

• A 1769-ECR right end cap or 1769-ECL left end cap is required to terminate the end of the Compact I/O bus.

• Each bank of Compact I/O modules must have its own power supply.

A MicroLogix 1500 controller acts as the power supply for modules directly connected to it.

• A Compact I/O power supply, or MicroLogix 1500 base unit, has limits on the amount of +5V DC and +24V DC current it can supply to modules in its I/O bank.

These limits depend on the catalog number of the power supply, for example, 1769-PA2. A bank of modules must not exceed the current limits of the I/O bank power supply or MicroLogix 1500 base unit.

Refer to the Compact 1769 Expansion I/O Power Supplies Installation Instructions, publication Manual, publication

1764-UM001

1769-IN028

, or the MicroLogix 1500 User

• The scanner module has a distance rating of four, therefore, the scanner module must be within four modules of the I/O bank’s power supply.

• Determine the DeviceNet communication rate, based on standard DeviceNet considerations.

• Consider the number of words of I/O data the host controller supports.

For more information on planning your DeviceNet network, refer to the DeviceNet Media Design Installation Guide, publication

26 Publication 1769-UM009E-EN-P - August 2009

DNET-UM072

Installation and Wiring Chapter 3

ATTENTION

IMPORTANT

System Assembly

The scanner module can be attached to an adjacent controller, power supply, or I/O module. This procedure shows you how to assemble the Compact I/O system.

1. Disconnect power.

2. Check that the bus lever of the scanner module (A) is in the unlocked

(fully right) position.

3. Use the upper and lower tongue-and-groove slots (B) to secure the modules together.

4. Move the scanner module back along the tongue-and-groove slots until the bus connectors (C) line up with each other.

5. Use your fingers or a small screwdriver to push the bus lever back slightly to clear the positioning tab (D).

6. Move the scanner module’s bus lever fully to the left (E) until it clicks. Make sure it is locked firmly in place.

When attaching I/O modules, it is very important that the bus connectors are securely locked together for a proper electrical connection.

7. Attach an end cap terminator (F) to the last module in the system by using the tongue-and-groove slots as before.

8. Lock the end cap bus terminator (G).

A 1769-ECR or 1769-ECL right or left end cap must be used to terminate the end of the serial communication bus.

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Chapter 3 Installation and Wiring

ATTENTION

Host Controller

Compact I/O

End Cap

Side Side

Top

Bottom

System Mounting

During panel or DIN rail mounting of all devices, be sure that all debris (metal chips, wire strands) is prevented from falling into the module. Debris that falls into the module could cause damage at power up.

Minimum Spacing

Maintain spacing from enclosure walls, wireways, and adjacent equipment. Allow 50 mm (2 in.) of space on all sides for adequate ventilation, as shown below.

Allow at least 110 mm (4.33 in.) of enclosure depth to accommodate the scanner module and the DeviceNet connector.

Panel Mounting

Mount the scanner module to a panel, using two screws per scanner module. Use M4 or #8 panhead screws. Mounting screws are required on every module.

28 Publication 1769-UM009E-EN-P - August 2009

Installation and Wiring Chapter 3

15 mm (0.59 in)

67.5 mm (2.68 in)

52.5 mm (2.06 in)

132 mm (5.20 in)

70.0 mm (2.76 in)

35.0 mm (1.38 in)

118 mm (4.65 in)

35.0 mm (1.38 in)

52.5 mm (2.07 in)

DIN Rail Center Line

Mounting Hole Dimension

168 mm (6.62 in)

147 mm (5.79 in)

35 mm (1.38 in.)

28.5 mm (1.12 in.)

13.5 mm (0.53 in.)

14.7 mm (0.58 in.)

147.4 mm (5.8 in.)

132 mm (5.19 in.)

118 mm (4.65 in.)

59 mm

(2.32 in.)

59 mm

(2.32 in.)

122.6 mm (4.83 in.)

Panel Mounting Using the Dimensional Drawing

All dimensions are in millimeters (inches). Hole spacing tolerance: ±0.4 mm (0.016 in.).

Compact I/O System with L35E CompactLogix Controller and Power Supply

Compact I/O System with MicroLogix 1500 Base Unit and Processor

Publication 1769-UM009E-EN-P - August 2009 29

Chapter 3 Installation and Wiring

Dimension Height

A 118 mm (4.65 in.) B 59 mm (2.325 in.)

Panel Mounting Procedure Using Modules as a Template

This procedure lets you use the assembled modules as a template for drilling holes in the panel. Due to module mounting hole tolerance, it is important to follow these procedures.

1. On a clean work surface, assemble no more than three modules.

2. Using the assembled modules as a template, carefully mark the center of

all module-mounting holes on the panel.

3. Return the assembled modules to the clean work surface, including any previously mounted modules.

4. Drill and tap the mounting holes for the recommended M4 or #8 screw.

5. Place the modules back on the panel, and check for proper hole

alignment.

6. Attach the modules to the panel using the mounting screws.

If mounting more modules, mount only the last one of this group and put the others aside. This reduces remounting time during drilling and tapping of the next group.

7. Repeat steps 1...6 for any remaining modules.

DIN Rail Mounting

The module can be mounted using the following DIN rails:

• 35 x 7.5 mm (EN 50022 - 35 x 7.5) or 35 x 15 mm (EN 50022 - 35 x 15).

Before mounting the module on a DIN rail, close the DIN rail latches. Press the DIN rail mounting area of the module against the DIN rail. The latches will momentarily open and lock into place. DIN rail mounting dimensions are shown below.

DIN rail mounting dimensions

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