Rockwell Automation DEVICENET 1771-SDN User Manual

PLC-5 DeviceNet Scanner Module

1771-SDN

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, Data Highway Plus, and PLC-5 are trademarks of Rockwell Automation.

ControlNet is a trademark of ControlNet International, Ltd.

DeviceNet is a trademark of Open DeviceNet Vendor Association (ODVA), Inc.

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

RSLinx, RSLogix 5, 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.

1 Publication 1771-6.5.132 - June 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 PLC-5™ 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. It also describes how to use the PLC-5 pass-through feature to communicate with the DeviceNet network for adjustment and tuning of network devices via other networks, including:

•

ControlNet

•

Ethernet

•

Data Highway Plus (DH+)

The example application demonstrates how to perform control on DeviceNet using a PLC-5 processor and the 1771-SDN module. You use RSLogix 5 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 1771-SDN DeviceNet Scanner Module Installation Instructions, publication 1771-5.14. The Installation Instructions contain important information on configuring your scanner.

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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 PLC-5 processor communicating on a DeviceNet network through a 1771-SDN module.

We assume that you:

•

are developing a DeviceNet network using a PLC-5 processor in

conjunction with the 1771–SDN scanner module

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

• understand PLC-5 processor programming and operation

• are experienced with the Microsoft

Windows™ environment

• are familiar with RSNetWorx for DeviceNet software

Planning Your Configuration

go to Chapter 2

Configuring 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

Troubleshooting

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

PLC-5C processor

(1)

1785-L20C15, -L40C15, -L80C15 - -

1 1771 Universal I/O chassis 1771-A1B, -A2B, -A3B, -A3B1,

-A4B

B-

1 DeviceNet Scanner module 1771-SDN/B B -

Ethernet Interface module

(2)

1785-ENET - -

1 DeviceNet Quad-Tap 1492-DN3TW - -

1 RediSTATION operator interface module 2705-TxDN1x42x-xxxx - -

1 Series 9000 Photoeye 42GNP-9000 or equivalent

1 DeviceNet RS-232 interface module 1770-KFD - -

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

- DeviceNet dropline or trunkline cables, as needed

1787-PCABL, -TCABL, -MCABL - -

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

1 PC IBM-compatible

Windows 95/98, NT 4.0

Software

RSLogix 5 9324-RL5300xxx - 3.22

RSNetWorx for DeviceNet 9357-DNETL3 - 2.11

RSLinx 9355-WABxxx - 2.10

(1)

The minimum requirement for the processor is that it support block transfer instructions. A ControlNet version of the Processor is required if interfacing the DeviceNet network and a ControlNet network (see chapters 5 and 6).

(2)

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

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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.

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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 1771-SDN DeviceNet scanner 1771-SDN Scanner Module Installation Instructions 1771-5.14

the PLC-5 processor ControlNet PLC-5 Programmable Controllers User Manual

Phase 1.5

1785-6.5.22

PLC-5 Instruction Set Reference Manual 1785-6.1

1785-PLC-5 Programmable Controllers Quick Reference 1785-7.1

the1785-ENET Ethernet interface module PLC-5 Ethernet Interface Module User Manual 1785-6.5.19

the 1771 I/O chassis Universal I/O Chassis 1771-2.210

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

a 1784-PCD communication card NetLinx DeviceNet Communication Card Installation Instructions 1784-5.29

a 1784-PCID or 1784-PCIDS card DeviceNet PCI Communication Interface Card Installation 1784-5.31

the RediSTATION RediSTATION Operator Interface User Manual 2705-804

the 9000 Series photoeye {refer to the information that came with your photoeye} n/a

DeviceNet DeviceNet System Overview DN-2.5

DeviceNet Design Manual (online) DNET-AT-001A-EN

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

DeviceNet Cable Planning and Installation Release Note 1 DN-6.7.2-RN1

RSLinx software RSLinx Lite User’s Guide 9399-WAB32LUG

RSLogix 5 software Getting Results With RSLogix 5 9399-RL53GR

RSNetWorx for DeviceNet software DeviceNet Demo CD 9398-DNETDEMO

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

TIP

Many of the above 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

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P-6 About This User Manual

Terminology

This term Means

Bridge The scanner module’s support of explicit message transfer. Change of State A type of I/O data communication. The scanner 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 1771-SDN scanner module or the 1770-KFD module.

Cyclic A type of I/O data communication. The scanner 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 1771-SDN scanner 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 scanner 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 scanner is not communicating on the

network. Online When the PC communication scanner is configured and enabled to

communicate on the network. Output Data Data produced by a host platform that is written to the scanner module’s

memory. This data is sent by the scanner 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 scanner

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 1771-SDN scanner module to support the exchange of

I/O with slave modules. Slave Mode The scanner module is in slave mode when it is placed in another scanner

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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About This User Manual P-7

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, call your local Rockwell Automation representative, or call Rockwell directly at: 1 440 646-6800.

For presales support, call 1 440 646-3NET.

You can obtain technical assistance online from the following Rockwell Automation WEB sites:

•

www.ab.com/mem/technotes/kbhome.html

(knowledge base)

•

www.ab.com/networks/eds

(electronic data sheets)

Your Questions or Comments about This Manual

If you find a problem with this manual, please notify us of it on the enclosed Publication Problem Report (at the back of this manual).

If you have any suggestions about how we can make this manual more useful to you, please contact us at the following address:

Rockwell Automation, Allen-Bradley Company, Inc. Control and Information Group Technical Communication 1 Allen-Bradley Drive Mayfield Heights, OH 44124-6118

Publication 1771-6.5.132 - June 2000

P-8 About This User Manual

i Publication 1771-6.5.132 - June 2000

Table of Contents

Chapter 1

Before You Begin

What This Chapter Contains . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

What You Need to Know . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

What Your 1771-SDN Module Does . . . . . . . . . . . . . . . . . . . . 1-2

Address Density and Discrete I/O . . . . . . . . . . . . . . . . . . . . . . 1-4

Communicating with Your Devices . . . . . . . . . . . . . . . . . . . . . 1-6

Communicating with Your PLC-5 Processor. . . . . . . . . . . . . . . 1-7

What 1771-SDN Module Data Tables Are and What They Do . . 1-8

The Scanner Configuration Table (SCT) . . . . . . . . . . . . . . . 1-8

The Scanlist Table (SLT) . . . . . . . . . . . . . . . . . . . . . . . . . . 1-8

RSNetWorx Software as a Configuration Tool . . . . . . . . . . . . . 1-9

RSNetWorx for DeviceNet Configuration Screen Map . . . . 1-10

What’s Next? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-11

Chapter 2

Planning Your Configuration and Data Mapping Your Devices

What You Need to Know . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1

Beginning the Process . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1

The Example Network . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2

Example Network Devices . . . . . . . . . . . . . . . . . . . . . . . . 2-2

RediSTATION Operator Interface Data Mapping. . . . . . . . . 2-4

Mapping RediSTATION Input Data

for a Block Transfer Read . . . . . . . . . . . . . . . . . . . . . . . . . 2-5

Mapping RediSTATION Output Data

for a Block Transfer Write . . . . . . . . . . . . . . . . . . . . . . . . . 2-6

Photoeye Input Data Mapping. . . . . . . . . . . . . . . . . . . . . . 2-7

Mapping Photoeye Input Data for a Block Transfer Read . . 2-8

What’s Next? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-9

Chapter 3

Hardware Setup

What This Chapter Contains . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1

Installing the 1770-KFD Interface Module . . . . . . . . . . . . . . . . 3-1

Installing the PLC-5 Processor . . . . . . . . . . . . . . . . . . . . . . . . . 3-2

Setting the I/O Chassis Backplane Switches . . . . . . . . . . . . 3-2

Going Online to the PLC-5 Processor. . . . . . . . . . . . . . . . . 3-3

Installing the 1785-ENET Ethernet Module. . . . . . . . . . . . . . . . 3-5

Installing the 1771-SDN Scanner Module . . . . . . . . . . . . . . . . . 3-7

Setting the Channel 1 Data Rate

and Node Address Switches . . . . . . . . . . . . . . . . . . . . . . . 3-8

Setting the I/O Chassis Addressing Node Switches . . . . . . . 3-8

Installing the Scanner Module in the Chassis . . . . . . . . . . . 3-9

Connecting the Scanner to the DeviceNet Network . . . . . 3-10

Installing the RediSTATION Operator Interface . . . . . . . . . . . 3-11

Installing the Series 9000 Photoeye . . . . . . . . . . . . . . . . . . . . 3-12

How Your Example System Will Look. . . . . . . . . . . . . . . . . . 3-13

What’s Next? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-13

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Table of Contents ii

Chapter 4

Configuring the DeviceNet Network

What This Chapter Contains . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1

Installing the Software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1

Using RSLinx to Configure the DeviceNet Driver . . . . . . . . . . . 4-2

Using RSNetWorx for DeviceNet to Configure the Scanlist . . . . 4-4

Setting Up an Online Connection . . . . . . . . . . . . . . . . . . . 4-4

Setting the 1771-SDN Node Address . . . . . . . . . . . . . . . . . 4-6

Configuring the I/O Devices . . . . . . . . . . . . . . . . . . . . . . . 4-9

Verifying the Photoeye Configuration. . . . . . . . . . . . . 4-12

Verifying the RediSTATION Configuration . . . . . . . . . 4-13

AutoMapping the Devices into the Scanlist . . . . . . . . . 4-14

Download the Configuration to the Scanner . . . . . . . . 4-17

What’s Next? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-17

Chapter 5

Communicating with DeviceNet from Another Network

What This Chapter Contains . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1

Where to Find More Information. . . . . . . . . . . . . . . . . . . . . . . 5-2

Communicating with DeviceNet from a ControlNet Network . . 5-3

Configuring the DeviceNet Pass-Through Driver. . . . . . . . . 5-3

Communicating with the DeviceNet Network. . . . . . . . . . . 5-6

Communicating with DeviceNet from an Ethernet Network. . . 5-9

Configuring the Ethernet to PLC-5 Communications Driver . 5-9

Configuring the DeviceNet Pass-Through Driver. . . . . . . . 5-12

Communicating with the DeviceNet Network. . . . . . . . . . 5-15

Communicating with DeviceNet from a DH+ Network . . . . . 5-18

Configuring the DeviceNet Pass-Through Driver. . . . . . . . 5-18

Communicating with the DeviceNet Network. . . . . . . . . . 5-21

What’s Next? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-23

Chapter 6

Creating and Running the Example Application Program

What This Chapter Contains . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1

Installing the Software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-2

Creating the Example Application Program . . . . . . . . . . . . . . . 6-2

Downloading and Running the Program . . . . . . . . . . . . . . . . . 6-6

Downloading and Running the Program

via a ControlNet Network . . . . . . . . . . . . . . . . . . . . . . . . . 6-6

Testing the Example Program . . . . . . . . . . . . . . . . . . . 6-8

Downloading and Running the Program

via an Ethernet Network . . . . . . . . . . . . . . . . . . . . . . . . . . 6-9

Testing the Example Program . . . . . . . . . . . . . . . . . . 6-11

Downloading and Running the Program

via a DH+ Network. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-12

Testing the Example Program . . . . . . . . . . . . . . . . . . 6-14

What’s Next? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-14

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Table of Contents iii

Chapter 7

Troubleshooting

What This Chapter Contains . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1

Module Status Indicator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1

Network Status Indicator . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-2

Node/Error Code Indicator . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-2

Appendix A 1785-ENET Module Channel Configuration

Configuring the Communications Channel. . . . . . . . . . . . . . . . A-1

Appendix B Installing and Configuring the ControlNet Communications Driver

Installing the 1784-KTCX15 Communication Interface Card . . . B-1

Configuring the 1784-KTCX15 Communications Driver . . . . B-2

Appendix C Installing and Configuring the DH+ Communications Driver

Installing the 1784-KTX Communication Interface Card . . . . . . C-1

Configuring the 1784-KTX Communications Driver . . . . . . . . . C-2

Appendix D Data Map Example

Example Input Mapping Scheme. . . . . . . . . . . . . . . . . . . . . . D-1

Example Characteristics. . . . . . . . . . . . . . . . . . . . . . . . . . D-1

Example Framework . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-2

Input Data Table Formats . . . . . . . . . . . . . . . . . . . . . . . . D-3

Example Output Mapping Scheme . . . . . . . . . . . . . . . . . . . . D-6

Example Characteristics. . . . . . . . . . . . . . . . . . . . . . . . . . D-6

Example Framework . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-6

Output Data Table Formats . . . . . . . . . . . . . . . . . . . . . . . D-7

Index

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Table of Contents iv

1 Publication 1771-6.5.132 - June 2000

Chapter

Before You Begin

What This Chapter Contains

This chapter provides an overview of communication between a

PLC-5 processor and DeviceNet devices via a 1771-SDN module. The

data tables and the RSNetWorx for DeviceNet screens and windows

used to configure the data tables are also described.

The following table identifies what this chapter contains and where to

find specific information.

What You Need to Know

Before configuring your 1771-SDN scanner module, you must

understand:

•

the data exchange between the PLC -5 processor and DeviceNet devices through the 1771-SDN module

•

user-configurable 1771-SDN module data tables

• the role of RSNetWorx for DeviceNet software

For information about See page

What You Need to Know 1-1

What Your 1771-SDN Module Does 1-2

Communicating with Your Devices 1-6

What 1771-SDN Module Data Tables Are and What They Do 1-8

The Scanner Configuration Table (SCT) 1-8

The Scanlist Table (SLT) 1-8

RSNetWorx Software as a Configuration Tool 1-9

RSNetWorx for DeviceNet Configuration Screen Map 1-10

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1-2 Before You Begin

What Your 1771-SDN Module Does

In a typical configuration, the 1771-SDN module acts as an interface

between DeviceNet devices and the PLC-5 processor.

The 1771-SDN module communicates with DeviceNet devices over

the network to:

•

read inputs from a device

•

write outputs to a device

• download configuration data

• monitor a device’s operational status

The 1771-SDN module communicates with the processor in the form

of Block Transfers (BT) and/or Discrete I/O (DIO). Information

exchanged includes:

• device I/O data

• status information

• configuration data

1770-KFD PC Communication Module

PC with RSNetWorx for DeviceNet software

Series 9000 Photoeye

RediSTATION

1305 Drive

FLEX I/O Rack

DeviceNet Devices

DeviceNet Network

PLC-5 Processor

1771-SDN Scanner module

1771 I/O Chassis

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Before You Begin 1-3

A processor to I/O DeviceNet configuration is shown in the following

figure. See the referenced chapters for more information.

Configure SDN module (Chapter 4)

Mapping Table (Chapters 2 and 4)

Input Device

Output Device

Input Data from Device to SDN (Chapter 2)

Output Write by Processor (Chapter 2)

DeviceNet Network

Output Data to Devices from SDN (Chapter 2)

Input Read by Processor (Chapter 2)

Processor to I/O

PC running RSNetWorx for DeviceNet

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1-4 Before You Begin

The 1771-SDN scanner module can also be used to bridge a

DeviceNet network with another network.

Address Density and Discrete I/O

You can use three addressing methods with your 1771-SDN scanner

module. The number of discrete I/O bits you have available for data

transfer is affected by the addressing mode selected.

Configuring Devices and Data Collection on Higher-Level Networks Via PLC-5/SDN

Target Device to be configured

Source Device to collect data

Configuration of device using RSNetWorx (Chapters 4 & 5)

DeviceNet Network

Laptop PC running RSNetWorx

ControlNet, DH+, or Ethernet Network

Collection of status or alarm data (Chapter 6)

SDN scanner module

Industrial workstation running RSView

Addressing Mode Discrete Inputs Discrete Outputs

2-slot 0 bits 0 bits

1-slot 8 bits 8 bits

1/2-slot 24 bits 24 bits

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Before You Begin 1-5

The concept described below applies to both input and output data tables. For example, when using your 1771-SDN in 1-slot addressing mode, you have eight bits of discrete input and eight bits of output available.

The address density is set via dip switches on the 1771-SDN module

and 1771 chassis. For more information about setting your module’s

address density with switches, refer to the 1771-SDN Scanner Module

Installation Instructions, publication 1771-5.14. For more information

about 1771-module addressing, refer to chapter 3 and to your PLC

programmable controller system-level installation manual and design

manual.

In the scanner’s input and output data tables, there is one byte of memory that is reserved for communication between the processor and the scanner. Processor-specific responses from the scanner are read by the processor in this byte of the input data table. Scanner-specific instructions are written to this byte of the output data table.

In 2-slot addressing mode, the only memory that would have been available for discrete data transfer (8 bits) is taken up by scanner/processor communication.

0 bits for discrete data transfer

2-slot addressing

8 bits for discrete data transfer

1-slot addressing

24 bits for discrete data transfer

1/2-slot addressing

In 1-slot addressing mode, there are 16 bits: eight bits for scanner/processor communication, and eight bits for discrete data transfer.

In 1/2-slot addressing mode, there are 32 bits: eight bits used for scanner/processor communication, and 24 bits for discrete data transfer.

= bits reserved for 1771-SDN and

processor communication

= bits available for discrete

data transfer

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1-6 Before You Begin

Communicating with Your Devices

The 1771-SDN module communicates with a device via

strobe, poll,

change of state,

and/or

cyclic

messages. It uses these messages to solicit data from or deliver data to each device. Data received from the devices, or input data, is organized by the 1771-SDN module and made available to the processor. Data received from your PLC-5 processor, or output data, is organized in the 1771-SDN module and sent on to your devices.

IMPORTANT

Throughout this document,

input

and

output

are defined

from the PLC-5 processor’s point of view. Output is data sent from the PLC-5 processor

a device. Input is data

collected by the PLC-5 processor

from

a device.

All data sent and received on a DeviceNet network is in byte lengths. A device may, for example, produce only two bits of input information. Nevertheless, since the minimum data size on a DeviceNet network is one byte, two bits of information are included in the byte of data produced by the device. In this example (only two bits of input information), the upper six bits are insignificant.

A strobe message is a multicast transfer of data (which is 64 bits in length) sent by the 1771-SDN module that solicits a response from each strobed slave device. There is one bit for each of the possible 64 node addresses. The devices respond with their data, which can be as much as 8 bytes.

A poll message is a point-to-point transfer of data (0-255 bytes) sent by the 1771-SDN module that solicits a response from a single device. The device responds with its input data (0-255 bytes).

A change of state message is a transfer of data sent whenever a data change occurs. A user-configurable heartbeat rate can also be set to allow devices to indicate proper operation during intervals between data changes. This does not solicit response data, but may receive an acknowledge message.

A cyclic message is sent only at a user-configurable rate, such as every 10 ms.

1771-SDN Scanner Module

DeviceNet Devices

Input Data Storage

Input Data From DeviceNet Devices

Data from a single device can be mapped to separate 1771-SDN module memory locations. For example,

“On/Off” values can be mapped to one location, diagnostic values to another, etc. This is known as “map segmenting”. This concept is illustrated by byte A, stored separately as segments A1 and A2.

Output Data Storage

Output Data To DeviceNet Devices

Byte

output from the PLC-5 processor

input from the devices to the PLC-5 processor

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Before You Begin 1-7

Communicating with Your PLC-5 Processor

Your processor communicates with the 1771-SDN scanner module via block transfer reads, block transfer writes, and DIO transfers.

Input data, gathered from the network’s devices, is organized within the 1771-SDN and made available for the processor to “read”.

The 1771-SDN module does not send data to your processor. Data transferred between the module and the processor must be initiated by the processor. Output data is sent, or “written”, to the

scanner by your processor. This data is organized in the 1771-SDN module, which in turn passes the data on to your scanned devices via strobe, poll, change of state, or cyclic messages.

A block transfer read (BTR) is a block transfer of data from the 1771-SDN module to the PLC processor. The processor is

reading

the data collected by the 1771-SDN module (i.e., DeviceNet input data).

A block transfer write (BTW) is a block transfer of data from the PLC processor to the 1771-SDN module. The processor is

writing

the data

to the 1771-SDN’s memory (i.e., DeviceNet output data).

PLC-5 Processor

1771-SDN Scanner

Z Y

Discrete Input Image

Block Transfer Data File

Internal Input Data Storage

I/O Map

Input from the devices

Discrete Output Image

Block Transfer Data File

Internal Output Data

I/O Map

Discrete I/O Transfer

Block Transfer Write

Discrete I/O Tra n s f e r

Block Transfer Read

Output to the devices

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1-8 Before You Begin

What 1771-SDN Module Data Tables Are and What They Do

To manage the flow of data between your processor and the network devices, the 1771-SDN module uses the following data tables.

•

1771-SDN Module Configuration Table

•

Scanlist Table

•

Device Input Data Table

•

Device Output Data Table

•

Device Idle Table

•

Device Failure Table

You can configure two of these data tables through RSNetWorx

software. These two tables are stored in the 1771-SDN module’s non-volatile memory and used to construct all other data tables:

•

Scanner Configuration Table (SCT)

•

Scanlist Table (SLT)

The Scanner Configuration Table (SCT)

The SCT controls basic information your 1771-SDN module needs to function on your DeviceNet network. It tells your 1771-SDN module:

•

if it can transmit and receive input and output data

•

how long it waits after each scan before it scans the devices again

•

when to send out its poll messages

The Scanlist Table (SLT)

The SLT supports I/O updating for each of your devices on the network. It also makes it possible for your 1771-SDN module to make device data available to your processor. The SLT tells your 1771-SDN module:

• which device node addresses to scan

• how to scan each device (strobe, poll, change of state, cyclic or

any valid combination)

• how often to scan your devices

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Before You Begin 1-9

•

exactly where in each device’s total data to find the desired data

•

the size of the input data/output data

•

exactly where to map the input or output data for your processor to read or write

RSNetWorx Software as a Configuration Tool

RSNetWorx for DeviceNet software is used to configure the 1771-SDN module’s data tables. This software tool connects to the 1771-SDN module over the DeviceNet network via a PC RS–232 interface (1770–KFD module), or PC Card (1784-PCD, -PCID, or PCIDS).

User Configured Tab le s

Data In This Table RSNetWorx Configuration

Screen

SCT • basic operation

• module parameters

• interscan delay

• background poll ratio

1771-SDN Module Configuration

SLT • device-specific

identification data

Scanlist Editor (SLE)

• data transfer method

• transmit/receive data size

Edit Device I/O Parameters

• input and output data source and destination locations

These values can be configured automatically through the AutoMap function or manually through the Data Table Map.

Interscan delay is the time between I/O scans (polled and strobed). It is the time the 1771-SDN module will wait between the last poll message request and the start of the next scan cycle.

Background poll ratio sets the frequency of poll messages to a device in relation to the number of I/O scans. For example, if the ratio is set at 10, that device will be polled once every 10 scans.

TIP

RSNetWorx for DeviceNet software can also communicate with the 1771-SDN module via a ControlNet, Ethernet, or Data Highway Plus network. See chapter 5.

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1-10 Before You Begin

The configuration screen map below shows the RSNetWorx for DeviceNet screens used to configure the 1771-SDN module and the navigation paths between them. The use of these screens is described in Chapter 4.

RSNetWorx for DeviceNet Configuration Screen Map

The main RSNetWorx for DeviceNet screen.

To automatically map input devices, select the Input tab and click on the AutoMap button.

To automatically map output devices, select the Output tab and click on the AutoMap button.

To access the scanlist, click on the Scanlist tab.

To edit a device’s I/O parameters, double-click on the device in

To access the 1771-SDN scanner Module, double-click on the 1771-SDN icon.

To download the scanlist, click on the Download to Scanner button.

To browse the network, click on the Online button and select the driver.

the scanlist.

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Before You Begin 1-11

What’s Next?

The remaining sections of this manual provide the following information:

•

Chapter 2 covers the configuration process planning stage through a data mapping example.

•

Chapter 3 describes the hardware setup for the example application.

•

Chapter 4 covers configuration of the DeviceNet network using RSNetWorx for DeviceNet software.

•

Chapter 5 describes how to communicate with a DeviceNet network from another network.

•

Chapter 6 describes how to create, download, and run the example application program.

•

Chapter 7 covers the diagnostics provided for troubleshooting the 1771-SDN module.

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1-12 Before You Begin

1 Publication 1771-6.5.132 - June 2000

Chapter

Planning Your Configuration and Data Mapping Your Devices

This chapter introduces questions you should ask before configuring your 1771-SDN Scanner. In addition, it presents an example DeviceNet network and I/O data mapping scheme for a photoeye and a RediSTATION operator interface module. The following table identifies what this chapter covers and where to find specific information.

What You Need to Know

To map data via your 1771-SDN Scanner module, you must understand:

•

your network requirements

•

how input data is mapped

• how output data is mapped

Beginning the Process

Planning before configuring your 1771-SDN module helps make sure that you can:

• use your memory and bandwidth efficiently

• cater to device-specific needs and requirements

• give priority to critical I/O transfers

• leave room for expansion

For information about See page

What You Need to Know 2-1

Beginning the Process 2-1

The Example Network 2-2

Example Network Devices 2-2

Photoeye Input Data Mapping 2-7

Mapping Photoeye Input Data for a Block Transfer Read 2-8

RediSTATION Operator Interface Data Mapping 2-4

Mapping RediSTATION Input Data for a Block Transfer Read 2-5

Mapping RediSTATION Output Data for a Block Transfer Write 2-6

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2-2 Planning Your Configuration and Data Mapping Your Devices

A very important question to answer is “what is on your network?” You should be familiar with each device’s:

•

communication requirements

•

I/O importance and size

•

frequency of message delivery

You should also ask “how might this network appear in the future?” At this point in your planning, it is advantageous for you to have some idea of how the network could be expanded. I/O data mapping can be performed automatically by the RSNetWorx software. But when mapping your I/O, you also have the opportunity to allot room for future I/O. This can save time and effort in the future.

For example, RSNetWorx will automatically map the devices as efficiently as possible, but the result is that multiple devices may share the same word location in memory. However, you can also have the system map the devices such that no two devices share the same memory location by selecting the “Dword align” option when performing automapping. You can manually map the devices if you need to assign them to specific memory locations.

For details refer to the Help screens provided by the RSNetWorx for DeviceNet software. Additional support can be found at the Rockwell Software website: http://www.software.rockwell.com.

The Example Network

The following example illustrates a data mapping plan for a DeviceNet network. Note that even if the mapping is performed automatically by the RSNetWorx software, you must know where the devices are mapped in order to use them in your network.

Example Network Devices

This example network has the following devices:

• a PC running RSNetWorx for DeviceNet software

• a 1771-SDN Scanner module interfacing a PLC-5 processor with

DeviceNet

• a Series 9000 photoelectric sensor (strobed)

• a RediSTATION operator interface (polled)

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Planning Your Configuration and Data Mapping Your Devices 2-3

The system you will set up is shown below:

IMPORTANT

In the following example, output is data sent to a device from a controller. Input is data collected from a device by a controller.

DeviceNet Network

PC running Windows NT or Windows 95/98, containing RSNetWorx for DeviceNet software

Series 9000

Photoelectric

Sensor

RediSTATION Operator Interface

1771-SDN and PLC-5 in 1771 I/O Chassis

Node 7

Node 9

Node 62

1770-KFD Communication Module

Node 0

∗

* See note below

IMPORTANT

Each end of the DeviceNet trunk cable must be properly terminated with a resistor. Refer to the DeviceNet Cable Planning and Installation Manual, publication DN-6.7.2 for detailed information.

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2-4 Planning Your Configuration and Data Mapping Your Devices

RediSTATION Operator Interface Data Mapping

The RediSTATION has both inputs and outputs that must be mapped.

The input byte is mapped to the 1771-SDN module’s block transfer read data table and then to the PLC-5 processor’s input data file. The output byte is mapped to the 1771-SDN module’s block transfer write data table and then to the PLC-5 processor’s output data file.

The mapping procedure, using RSNetWorx for DeviceNet software, is described on pages 4-14 to 4-17.

In the RediSTATION’s bits for the red and green buttons and the indicator light status bit:

•

1 = ON

• 0 = OFF

RediSTATION operator interface

Two input bits from the RediSTATION will be mapped: bit 1 for the green Start button and bit 0 for the red Stop button.

Bit 4 of the input byte indicates if the bulb is missing.

Indicator light

green start light

red start light

1 byte

input

output

1 byte

The RediSTATION operator interface produces one byte of input data and uses one byte of output data.

start bit (green button)

stop bit (red button)

status bit for indicator light

One output bit for the RediSTATION’s indicator light (on/off) will be mapped.

6543210

543210

G R

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Planning Your Configuration and Data Mapping Your Devices 2-5

Mapping RediSTATION Input Data for a Block Transfer Read

The RediSTATION operator interface’s input byte is mapped to the scanner’s block transfer read data table through a 62 word BTR. In this example, we use data file N9:0.

The bits for the RediSTATION

operator interfaces’s red and green buttons are mapped into the 1771-SDN Scanner’s BTR data table.

What’s Happening?

The BTR data table is then transferred via a BTR to the PLC-5

processor’s input data file.

Important: The 1771-SDN module only makes the data file available for the processor to read. The 1771-SDN does not move the data file to the processor.

R = bit for red button (STOP) G = bit for green button (START)

N9:0 0000 0000 0000 0000

N9:1 0000 0000 0000 00GR

N9:2 0000 0000 0000 0000

N9:3 0000 0000 0000 0000

N9:5 0000 0000 0000 0000

Word 0

Word 1

Word 2

Word 3

Word 4

Word 61

The red STOP button from the RediSTATION appears in the PLC-5 processor’s input file at address N9:1/0.

N9:4 0000 0000 0000 0000

RediSTATION Input Byte

= unused bits

1771-SDN Scanner Block Transfer Read Data Table

1 byte

G R

This mapping is based upon the example in chapter 4. The mapping for your system may be different.

PLC-5 Processor Input Data File

reserved for module status word

= bits reserved for module

status word

Note: This example uses 1-slot addressing.

N9:61 0000 0000 0000 0000

Example: The green START button from the RediSTATION appears in the PLC-5 processor’s input file at address N9:1/1.

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2-6 Planning Your Configuration and Data Mapping Your Devices

Mapping RediSTATION Output Data for a Block Transfer Write

The RediSTATION operator interface’s output byte is mapped to the 1771-SDN module’s block transfer write data table. Within the output byte is bit 0 for the indicator light. The PLC-5’s output data file is transferred by the processor application to turn the light on or off. In this example, we use N10 for the output data file.

start/stop station

node address 7

L = bit for the station

indicator light

The PLC-5 processor’s output data file containing the indicator light bit for the RediSTATION is transferred via a BTW to the 1771-SDN Scanner’s BTW data table.

What’s Happening?

The BTW data table is then sent to the RediSTATION via a polled message from which the RediSTATION receives its indicator light bit.

= unused bits

RediSTATION Output

1 byte

Example: The RediSTATION’s indicator light (L) is taken from N10:1/0 in the PLC-5 processor’s output data file.

This mapping is based upon the example in chapter 4. The actual mapping for your system may be different.

= bits reserved for module

status word

Word 0

Word 1

Word 2

Word 3

Word 4

Word 61

1771-SDN Scanner Block Transfer Write Data Table

reserved for module status word

N10:0 0000 0000 0000 0000

N10:1 0000 0000 0000 000L

N10:2 0000 0000 0000 0000

N10:3 0000 0000 0000 0000

N10:5 0000 0000 0000 0000

N10:4 0000 0000 0000 0000

PLC-5 Processor Output Data File

N10:61 0000 0000 0000 0000

Note: This example uses 1-slot addressing.

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Planning Your Configuration and Data Mapping Your Devices 2-7

Photoeye Input Data Mapping

The photoelectric sensor (photoeye) inputs are mapped to the

1771-SDN module’s block transfer read data table and then to the PLC-5 processor’s input data file. The procedure for doing this using RSNetWorx for DeviceNet software is described on pages 4-14 to 4-17.

The photoeye has no outputs to map.

Series 9000 Photoeye

Two input bits from the photoeye will be mapped: the status bit and the data bit.

The photoeye produces one byte of input data in response to the strobe message.

input

status

bit

1 byte

S D

data

bit

76543210

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2-8 Planning Your Configuration and Data Mapping Your Devices

Mapping Photoeye Input Data for a Block Transfer Read

The photoeye’s input byte is mapped to the scanner’s block transfer read data table through a 62 word BTR. In this example, we use data file N9.

What’s Happening?

Important: The 1771-SDN module only

makes the data available for the processor to read. The 1771-SDN module does not move the data to the processor.

= unused bits

Photoeye Input Byte

1 byte

The status and data bits from the photoeye are mapped into

the 1771-SDN Scanner’s BTR data table.

The BTR data table is then transferred via a BTR to the PLC-5 processor’s input data file.

S D

This mapping is based upon the example in chapter 4.

The actual mapping for your system may be different.

Note: This example uses 1-slot addressing.

Word 0

Word 1

Word 2

Word 3

Word 4

Word 61

1771-SDN Scanner Block Transfer Read Data Table

S D

= bits reserved for module

status word

N9:0 0000 0000 0000 0000

N9:1 0000 00SD 0000 0000

N9:2 0000 0000 0000 0000

N9:3 0000 0000 0000 0000

N9:5 0000 0000 0000 0000

N9:4 0000 0000 0000 0000

PLC-5 Processor Input Data File

N9:61 0000 0000 0000 0000

Example: The Status bit from the photoeye appears in the PLC-5 processor’s integer file at address N9:1/9. The Data bit from the photoeye appears in the PLC-5 processor’s

integer file at address N9:1/8.

reserved for module status word

RediSTATION

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Planning Your Configuration and Data Mapping Your Devices 2-9

What’s Next?

Chapter 3 describes how to set up the system hardware for the example application.

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2-10 Planning Your Configuration and Data Mapping Your Devices

1 Publication 1771-6.5.132 - June 2000

Chapter

Hardware Setup

What This Chapter Contains

This chapter describes how to set up the hardware for the example application. The following table describes what this chapter contains and where to find specific information.

Installing the 1770-KFD Interface Module

Connect the RS-232 connector on the 1770-KFD interface module to one of the serial ports on your PC workstation (e.g., COM1). Connect the DeviceNet connector on the 1770-KFD module to a DeviceNet drop or trunk cable. You can make this connection in several ways; for example, using a DeviceNet Quad Tap (#1492-DN3TW), as shown on page 3-13.

For detailed directions on how to install the 1770-KFD interface module, see the DeviceNet RS-232 Interface Module Installation Instructions, publication 1770-5.6.

For information about See page

Installing the 1770-KFD Interface Module 3-1

Installing the PLC-5 Processor 3-2

Setting the I/O Chassis Backplane Switches 3-2

Going Online to the PLC-5 Processor 3-3

Installing the 1785-ENET Ethernet Module 3-5

Installing the 1771-SDN Scanner Module 3-7

Setting the Channel 1 Data Rate and Node Address Switches 3-8

Setting the I/O Chassis Addressing Node Switches 3-8

Installing the Scanner Module in the Chassis 3-9

Connecting the Scanner to the DeviceNet Network 3-10

Installing the RediSTATION Operator Interface 3-11

Installing the Series 9000 Photoeye 3-12

How Your Example System Will Look 3-13

to PC COM 1

1770-KFD RS-232 Interface Module

DeviceNet Dropline or Trun k C able

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3-2 Hardware Setup

Installing the PLC-5 Processor

Refer to the following figure while installing your PLC-5 processor.

Setting the I/O Chassis Backplane Switches

Set the backplane switches in the 1771 I/O chassis for 1-slot addressing for the example application. To do this, put switch 4 in the OFF position and switch 5 in the ON position.

Switches Addressing

OFF OFF 2 - slot

OFF ON 1 - slot

ON OFF 1/2 - slot

ON ON Not Allowed

For information on setting the other backplane switches for your system, refer to the ControlNet PLC-5 Programmable Controllers User Manual Phase 1.5, publication 1785-6.5.22.

Card Guides

Battery

PLC-5/40C Processor

Lift Ejector Tab

Locking Bar

Connector

Cover

ControlNet Node Address Switches

PLC-5C Processor and 1771 I/O Chassis

DH+ Address Switches (on back)

1771 I/O Chassis

OFF

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Hardware Setup 3-3

Going Online to the PLC-5 Processor

You cannot go online to the PLC-5 processor over DeviceNet. In order to download and run the example application program in chapter 6

you must use the processor’s RS-232 connector, or download and run the program via another network.

Chapter 6 provides examples of downloading and running the application program via ControlNet, Ethernet, and Data Highway Plus networks. Chapter 5 provides examples of configuring the DeviceNet network over these networks.

To go online to the PLC-5 processor via ControlNet:

1. Set the PLC-5C ControlNet node address using the two 10-digit

rotary switches on top of the PLC-5C module.

For the example application we used node address 16.

2. Connect the PLC-5C’s ControlNet port to the ControlNet network.

See Appendix B for information on installing and configuring the ControlNet driver. See the ControlNet 1.5 PLC-5 Programmable Controller User Manual, publication 1785-6.5.22, for further information

ControlNet PLC-5C processor’s NET address = 16

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3-4 Hardware Setup

To go online to the PLC-5 processor via Data Highway Plus:

1. Define the DH+ station address of channel 1A by setting switch

assembly SW-1 on the back of the processor. For the example application we used address 1. (Set switch 4 in the up position, and switches 1, 2, 3, 5, and 6 in the down position.)

2. Set the baud rate to 57.6 Kbaud by placing switch 7 in the up

position.

See Appendix C for information on installing and configuring the Data Highway Plus driver.

TIP

See the information on the side of the processor if you want to use another address.

back view of processor

down

side view

Switch 7 in the “up” position.

Switch 4 in the “up” position

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Hardware Setup 3-5

Installing the 1785-ENET Ethernet Module

To go online to the PLC-5 processor via Ethernet, you must install a 1785-ENET module in the 1771 I/O chassis.

The Ethernet module is shipped with a 58-pin connector header that attaches to the PLC-5 processor.

1. Attach the connector header to the PLC-5 processor.

2. Use the captive screws to connect the interface module to the

processor.

Status Indicator

Transmit Indicator

External Transceiver Fuse

Channel 3A: 15-pin AUI Connector Port

IMPORTANT

Make sure you carefully align the pins and holes before you press the connector header into the processor. If you improperly align them, you will bend the connector header pins when you press them together. Do not use excessive force on the connector header when seating it into the processor. You do not need to key the connector.

Push the exposed pins into the holes on the PLC-5 processor.

Attach the interface module to this end.

Connector Header

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3-6 Hardware Setup

3. Insert the interface module/processor combination in the left-most

slot of the 1771 I/O chassis.

4. Assign an IP address to the interface module.

5. Configure channel 3A for Ethernet communication.

You can configure the communication channel using BOOTP software or your PLC-5 programming software. See Appendix A for information on configuring the communication channel using RSLogix 5 programming software.

For more information, see the PLC-5 Ethernet Interface Module User Manual, publication 1785-6.5.19.

Be sure power to the 1771 I/O chassis is OFF.

TIP

Rockwell Automation offers a BOOTP tool on http://www.ab.com

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Hardware Setup 3-7

Installing the 1771-SDN Scanner Module

Refer to the following figure as you install the 1771-SDN module.

Module Status Indicator - indicates whether the device has power and is functioning properly.

MODULE STATUS

RESET

CHANNEL 1

NETWORK

STATUS

NODE/

ERROR CODE

DeviceNet

CHANNEL 2

DeviceNet

NETWORK

STATUS

NODE/

ERROR CODE

Channel 1 Status Indicator - gives diagnostic indications for Channel 1.

Node Address and Status Display displays numeric codes that indicate scanner node address, status and/or errors for Channel 1.

DeviceNet Port 1 - use the color-coded header to wire your module.

Channel 2 Status Indicator - gives diagnostic indications for Channel 2.

Node Address and Status Display displays numeric codes that indicate scanner node address, status and/or errors for Channel 2.

DeviceNet Port 2 - use the color-coded header to wire your module.

Reset Button - resets your module.

= ON = 1

= OFF = 0

Multi-position Switches - use to set the data rate, chassis addressing mode, and scanner node address for each channel.

Data Rate

Switch Settings

Chassis Address

Switch Settings

Channel 1 & 2

Node Address Switch Settings

Left Side of Module

= ON = 1

= OFF = 0

12345678

12345678 12 345678

Allen-Bradley

1771-SDN

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3-8 Hardware Setup

Setting the Channel 1 Data Rate and Node Address Switches

1. Locate the switchbank labeled “Channel 1” on the left side of the

module.

2. Set the DeviceNet Data Rate for Channel 1 to 500K baud for the

example application by setting switch 1 to an ON (“1”) position and switch 2 to an OFF (“0”) position.

3. Set the DeviceNet node address for Channel 1 to node 0 for the

example application by setting switches 3 through 8 to the OFF (“0”) position.

Setting the I/O Chassis Addressing Node Switches

Set the I/O chassis addressing mode to 1-slot for the example application.

1. Locate the switchbank labeled “Configuration” on the left side of

the module.

2. Set switch 7 to an OFF (“0”) position and switch 8 to an ON (“1”)

position.

TIP

Refer to the table on the left side of the module to set the channel to a different node address. The address range is 0 to 63.

IMPORTANT

The node address setting must not conflict with the node address of any other device on the network. Note that channel 2 is not used for the example application.

IMPORTANT

Make sure switches 1 through 6 in the Configuration switchbank always remain in the OFF (“0”) position.

IMPORTANT

The chassis addressing mode setting for the 1771 I/O chassis (page 3-2) must match the I/O chassis address setting of the scanner. If the switches do not match, data will be lost in the data transfer between the PLC-5 processor and the scanner module.

Channel 1

= ON = 1

= OFF = 0

12345678

= ON = 1

= OFF = 0

Configuration

12345678

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Hardware Setup 3-9

Installing the Scanner Module in the Chassis

1. Select a slot for the 1771-SDN module in the chassis. You may use

any slot except the leftmost slot, which is reserved for the PLC-5 processor. For the example application, we installed the scanner in slot 1.

2. Insert the 1771-SDN Scanner module into the slot.

Apply firm, even pressure to seat the module in the I/O chassis backplane connectors.

ATTENTION

Do not install the 1771-SDN Scanner Module with the chassis power supply on. Turn off the chassis power supply. You will disrupt backplane communication and may damage your module.

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3-10 Hardware Setup

Connecting the Scanner to the DeviceNet Network

To connect to the DeviceNet network:

1. Connect the DeviceNet drop line to the linear plug provided with

the scanner. Match the wire insulation colors to the colors shown on the label.

2. Locate the DeviceNet port connector for Channel 1 on the front of

the module.

3. Insert the linear plug into the five-pin header for Channel 1.

ATTENTION

Do not wire your module with power applied to your network. You may short circuit your network or disrupt communication.

MODULE

STATUS

RESET

CHANNEL 1

NETWORK

STATUS

NODE/

ERROR CODE

Device

Net

CHANNEL 2

Device

Net

NETWORK

STATUS

NODE/

ERROR CODE

Front of Scanner Module

Module label shows wiring color scheme

RED

WHITE

BARE BLUE

BLACK

Dedicated DeviceNet Drop Line

Channel 1 Port Connector

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Hardware Setup 3-11

Installing the RediSTATION Operator Interface

Begin installing the RediSTATION by removing the six screws fastening the cover and setting the DIP switches inside as follows:

See Chapter 2 of the RediSTATION Operator Interface User Manual, publication 2705-804, for complete information about setting the DIP switches to configure the node address, data rate, output flash rate, and output fault state.

Refer to the following illustration as you connect the RediSTATION to the network.

Set this position To this value:

1 2 3 4 5 6

1On 1On 1 On (node 0 Off address

) 0Off 0Off

7 8

0 Off (data 1On rate

)

0Off 0Off

The DeviceNet address is 000111 (node 7).

The data rate is 10 (500k bps). The output fault rate is 0 (outputs turned off). The output flash rate is 0 (outputs tuned off).

DeviceNet Cable

The DeviceNet cable connects directly to the mini connector on the top of the RediSTATION enclosure or through the conduit opening (open style).

TIP

You do not need to disconnect incoming power from the DeviceNet network before connecting the RediSTATION.

mini connector

open style

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3-12 Hardware Setup

Installing the Series 9000 Photoeye

Connect the photoeye to the network and configure the photoeye as follows:

•

Node Address: 9

•

Operating Mode: Light Operate (default)

•

Baud Rate: 500 kb

For detailed directions, see the instructions that came with your photoeye.

Programming

Pushbutton

Sensitivity

Adjustment

Yellow - Output

Green - Margin

Red/Green - Status

Top View of Series 9000 Photoeye

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Hardware Setup 3-13

How Your Example System Will Look

When you have finished installing all the devices, your example system should look similar to the one shown below:

What’s Next?

The next step is to configure the 1771-SDN module and perform I/O data mapping using RSNetWorx for DeviceNet software.

Series 9000 Photoelectric Sensor

RediSTATION Operator Interface

PLC-5 Processor with 1771-SDN module in 1771 I/O chassis

Node 7

Node 9

Node 62

1770-KFD Communication Module

Node 0

24V

PC Serial Port

1492-DN3TW Quad Tap

PC running Windows NT or Windows 95/98, containing RSNetWorx for DeviceNet software

IMPORTANT

Make sure each end of your DeviceNet trunk cable is properly terminated with a resistor. Refer to the DeviceNet Cable Planning and Installation Manual, publication DN-6.7.2 for detailed information.

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1 Publication 1771-6.5.132 - June 2000

Chapter

Configuring the DeviceNet Network

What This Chapter Contains

This chapter describes how to configure the DeviceNet network using RSLinx and RSNetWorx for DeviceNet software. The following table describes what this chapter contains and where to find specific information.

Installing the Software

Install the RSLinx and RSNetWorx software.

1. Insert the CD in the CD-ROM drive.

Note: The CD-ROM supports Windows Autorun. Once inserted into

the CD-ROM drive, if you have Autorun configured, the installation will automatically start at the first setup screen.

If Autorun is not configured for your CD-ROM drive, go to step 2.

2. From the Start menu, choose Run.

You will see the Run pop-up window.

3. Type d:/setup (if it doesn’t appear automatically), where d: is your

CD-ROM driver letter.

4. Click on OK.

You see the progress bar, followed by the welcome screen.

For information about See page

Installing the Software 4-1

Using RSLinx to Configure the DeviceNet Driver 4-2

Using RSNetWorx for DeviceNet to Configure the Scanlist 4-4

Setting Up an Online Connection 4-4

Setting the 1771-SDN Node Address 4-6

Configuring the I/O Devices 4-9

Verifying the Photoeye Configuration 4-12

Verifying the RediSTATION Configuration 4-13

AutoMapping the Devices into the Scanlist 4-14

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4-2 Configuring the DeviceNet Network

Using RSLinx to Configure the DeviceNet Driver

After you install the software, you use RSLinx to configure your DeviceNet driver and RSNetWorx for DeviceNet to configure the network.

1. Start the RSLinx software.

2. From the Communications menu, select Configure Drivers. The Configure Drivers window will appear.

3. From the list of Available Drivers, select DeviceNet Drivers and

click on Add/New.

You will see the following list of drivers:

4. Select the Allen-Bradley 1770-KFD driver.

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Configuring the DeviceNet Network 4-3

The Allen-Bradley 1770-KFD Driver Configuration window will appear.

5. Configure the driver using the example above as a guide and click on OK. The software will take a few seconds to configure the driver. When it is done the following prompt will appear:

6. Select the default driver name 1770-KFD-1 and click on OK.

7. Close RSLinx.

You will use the driver you just configured to browse and configure the network with RSNetWorx for DeviceNet.

Your driver setup will vary according to your system setup (COM port, Data Rate, Node Address). Choose the appropriate settings for your system. We set the DeviceNet Port Setup Data Rate to 500K for the example application.

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Using RSNetWorx for DeviceNet to Configure the Scanlist

Setting Up an Online Connection

Follow the procedure below to set up an online connection to the DeviceNet network using the 1770-KFD driver.

1. Start RSNetWorx.

2. From the File menu, select New.

If you have RSNetWorx for ControlNet installed on your computer you may see the following window. Otherwise, proceed to step 4.

3. Highlight DeviceNet Configuration and click on OK.

4. Click on the Online button on the toolbar.

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Configuring the DeviceNet Network 4-5

The Browse for network window will appear. You will see the drivers you have configured on your system.

5. Select the 1770-KFD-1, DeviceNet driver and click on OK.

You will be prompted to upload or download devices before going online.

6. Click on OK to go online and upload the network.

RSNetWorx for DeviceNet will begin browsing for network devices. When the software is finished browsing, the network displayed on your screen should look similar to the one shown below.

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4-6 Configuring the DeviceNet Network

Setting the 1771-SDN Node Address

Once the devices are uploaded, their node addresses appear to the right of their icons. For the example application, the 1771-SDN

scanner module should have a node address of “0” (or “00”). If you need to change a module’s node address, use the following procedure.

If “00” appears to the right of the 1771-SDN icon and you do not need to change the node address or baud rate of any device, skip the remainder of this section and go to “Configuring the I/O Devices” on page 4-9.

TIP

RSNetWorx for DeviceNet performs a one-shot browse when you go online or choose the browse feature. The software will poll for devices once and display the results. If a node which was online later goes offline, there will be no “live” indication in RSNetWorx. You must manually perform a browse to detect the missing node.

To perform the browse, press the button.

TIP

You can use this procedure to change the node address of other devices on the network (e.g., the Photoeye). You can also change the network data rate (baud rate) of some devices. Power must be cycled for baud rate changes to take effect.

IMPORTANT

The network must not be active when performing node commissioning on the 1771-SDN module. Make sure the processor is in Program mode.

(Note that this applies only to the 1771-SDN. You may commission other devices with the processor in Run mode.)

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Configuring the DeviceNet Network 4-7

To change the node address of a device perform the following steps:

1. From the Tools menu select Node Commissioning.

2. Click on the Browse button.

You will see the Device Selection window.

3. Select the 1770-KFD-1 driver.

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4-8 Configuring the DeviceNet Network

The devices on the network will appear in the right panel.

4. Select the device from the right panel and click on OK.

You will see the Node Commissioning window with the current settings for the device. Your window will look similar to the one shown below.

5. In the New Device Settings: Node Address box, enter the new node address (e.g., a 0 as shown above).

6. Click on Apply.

7. Click on Exit to close the window.

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Configuring the DeviceNet Network 4-9

Configuring the I/O Devices

Next you must add the RediSTATION and the photoeye to the

1771-SDN’s scanlist, configure and/or verify their parameters, and map them to the PLC-5 processor’s memory.

1. Double-click on the 1771-SDN module icon.

The following window will appear:

2. Select the Module tab.

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You will be prompted to upload or download the configuration.

3. Click on Upload.

After uploading the Module page will appear:

4. Make sure the 1771-SDN module’s Rack and Group numbers are correct. We used Rack 0, Group 1 for the example application.

5. Select the Scanlist tab.

TIP

We used the Module Defaults for the other settings. For an explanation of the other settings (Import and Export, PLC Interface Address, etc.) click on the Help button.

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Configuring the DeviceNet Network 4-11

The Scanlist page will appear with the RediSTATION and the photoeye in the list of Available Devices.

6. For this example, uncheck the Automap on Add box, as shown above. You will do this mapping later.

7. Click on the double arrow button to add the photoeye and RediSTATION to the Scanlist.

The photoeye and the RediSTATION will appear in the Scanlist in the right panel.

8. Click on OK.

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4-12 Configuring the DeviceNet Network

You will be prompted to download the changes to the device (i.e., the scanner).

9. Click on Yes.

Verifying the Photoeye Configuration

1. Double-click on the 1771-SDN module icon and again select the Scanlist tab.

2. Double-click on the photoeye in the Scanlist.

IMPORTANT

The PLC-5 processor must be in Program mode to download the scanlist to the 1771-SDN module.

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Configuring the DeviceNet Network 4-13

The Edit I/O Parameters window will appear for the photoeye.

The I/O parameters define the configuration for the device in terms of how much and what data the device will exchange with the 1771-SDN module. By default, the photoeye will send 1 byte when it receives a strobe request. Recall from chapter 3 that the output of the photoeye will be returned in bit 0 of that byte.

3. Verify that the photoeye parameters are set as shown above. Make any changes as necessary and click on OK.

4. Close the Edit I/O Parameters window for the photoeye.

Verifying the RediSTATION Configuration

1. Double-click on the RediSTATION in the Scanlist window. The Edit I/O Parameters window will appear for the RediSTATION.

2. Make sure that the Polled box is checked and that the Rx Size and Tx Size are each 1 byte.

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4-14 Configuring the DeviceNet Network

3. Click on OK if you made any changes and close the Edit I/O Parameters window for the RediSTATION.

4. Click on OK again. You will be prompted to download the changes

to the 1771-SDN module.

5. Click on Yes to download the new configuration.

AutoMapping the Devices into the Scanlist

Follow the procedure below to automatically map the photoeye and RediSTATION to the PLC-5 processor.

1. Double-click on the 1771-SDN module icon and select the Input tab. You will see the following window.

2. Highlight the RediSTATION and the photoeye as shown above and click on the AutoMap button.

TIP

If you want to know how to map the devices manually, click on the Help button at the bottom of

the screen and select “Map device input data manually”.

There are six available blocks. Block Xfer 62 is the default.

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Configuring the DeviceNet Network 4-15

The resulting device mapping will appear in the lower panel of the window:

In this example, the input byte from the RediSTATION will appear in the PLC-5 processor in file N9, word 1, as bits 0-7. Recall from chapter 2 that the START button is bit 1 and the STOP button is bit

0. Therefore, the addresses for the RediSTATION inputs are:

START N9:1.1 STOP N9:1.0

The input byte from the photoeye will appear in the PLC-5 processor in file N9, word 1, as bits 8-15. Recall from chapter 3 that the input bit is bit 0. Therefore, the address of the photoeye input bit is:

N9:1.8

3. Note the addresses assigned to the START and STOP buttons and the photoeye in your system. You will enter these addresses

in the example ladder program.

RediSTATION

inputs

Photoeye

inputs

File N9, Word 1

Note: The source address is actually determined by the block transfer instruction in the ladder logic. See chapter 6.

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4-16 Configuring the DeviceNet Network

4. Select the Output tab.

Highlight the RediSTATION as shown above and click on the AutoMap button. The mapping of the RediSTATION will appear in the lower panel.

In this example, the output to the RediSTATION appears in the PLC-5 processor in file N10, word 1, as the lower byte (bits 0-7). Recall from chapter 3 that the indicator light is output bit 0.

Therefore, the address for the RediSTATION’s indicator light is:

N10:1.0

5. Note the address assigned to this output in your system. You will enter this address in the example ladder logic program.

After mapping the RediSTATION output address will appear here.

File N10, Word 1

Note: The destination address is actually determined by the block transfer instruction in the ladder logic. See chapter 6.

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Configuring the DeviceNet Network 4-17

Download the Configuration to the Scanner

1. Click on the Scanlist tab and then on the Download to Scanner button.

You will see this window:

2. Select Channel A (default).

Note: Both channels will download.

3. Select All Records.

4. Click on the Download button to download the configuration to

the 1771-SDN scanner module.

5. Click on the OK button to complete the DeviceNet scanner configuration.

6. Select the Save as option from the File menu, and save the DeviceNet configuration, using an appropriate name, e.g.,

1771-SDN.dnt.

7. Close the RSNetWorx for DeviceNet software.

What’s Next?

The next chapter describes how to configure the DeviceNet network remotely from other networks: Ethernet, ControlNet, and Data Highway Plus.

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1 Publication 1771-6.5.132 - June 2000

Chapter

Communicating with DeviceNet from Another Network

What This Chapter Contains

This chapter describes how to communicate with the DeviceNet

network from another network, using the PLC-5 “pass-through” feature. This feature can be used to adjust and fine tune the nodes on your network. Examples are provided for communicating from a ControlNet network, an Ethernet network, and a Data Highway Plus network.

You must have previously set up the network you will use to communicate with the DeviceNet network and have installed and configured the appropriate drivers and interface hardware. The 1771 I/O chassis used for these examples was set up with the following hardware mapping:

ATTENTION

The pass-through feature is not intended to replace a 1770-KFD, PCD, PCID, or PCIDS connection to the network:

•

Pass-through is intended only for fine tuning and adjustment of your network devices. Do not attempt to configure your entire network using a pass-through driver, or a time-out may occur.

•

The pass-through method is not suitable for real time monitoring of your network devices.

IMPORTANT

To use the pass-through feature you must have the following versions of the RSLinx software and 1771-SDN module firmware:

Module Rack Group Slot IP Address

PLC-5C/1785-ENET 0 0 0 130.130.130.2

1771-SDN 0 1 0 n/a

Component Software/Firmware Version

RSLinx software 2.10 or higher

1771-SDN module 4.003 or higher

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5-2 Communicating with DeviceNet from Another Network

The following table describes what this chapter contains and where to find specific information.

Where to Find More Information

Refer to the following publications for information on configuring other networks:

For information about See page

Where to Find More Information 5-2

Communicating with DeviceNet from a ControlNet Network 5-3

Communicating with DeviceNet from an Ethernet Network 5-9

Communicating with DeviceNet from a DH+ Network 5-18

For information about: See this publication: Publication number:

the ControlNet PLC-5 processor ControlNet PLC-5 Programmable Controllers User Manual 1785-6.5.22 the Ethernet interface module PLC-5 Ethernet Interface Module User Manual 1785-6.5.19 TCP/IP protocol and networking in general Comer, Douglas E.,

Internetworking with TCP-IP, Volume 1:

Protocols and Architecture

, 2nd ed. Englewood Cliffs,

N.J.:Prentice-Hall, 1995. ISBN 0-13-216987-8.

n/a

Tannebaum, Andrew S.

Computer Networks

, 2nd ed. Englewood

Cliffs, N.J.: Prentice-Hall, 1989. ISBN 0-13-162959-

n/a

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Communicating with DeviceNet from Another Network 5-3

Communicating with DeviceNet from a ControlNet Network

Before performing this example the ControlNet network must be configured and running. A ControlNet processor (PLC-5C) is required. In this example the PLC-5C processor is configured as ControlNet

node 16. Use your own ControlNet PLC-5C processor’s configuration when performing this example.

Configuring the DeviceNet Pass-Through Driver

Before you can communicate with the 1771-SDN module via the ControlNet network, you must first configure the DeviceNet pass-through driver (1771-SDNPT) with a ControlNet port. RSLinx, version 2.10 or higher, is required.

To configure the ControlNet pass-through driver perform the following steps:

1. Start RSLinx.

2. From the Communications menu, select Configure Drivers.

3. From the list of Available Driver Types select DeviceNet Drivers and click on Add/New.

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You will see the following list of drivers.

4. Select the Allen-Bradley 1771-SDNPT driver. The Driver Configuration window will appear.

5. Select a pass-through port to be configured from the pull-down list, e.g., Port 1.

6. Expand your installed ControlNet driver (AB_KTC-1 in the

example) and highlight your PLC-5C processor.

7. Select the 1771-SDN Backplane Address Configuration. We used the following configuration for the example application.

8. Select the DeviceNet Channel (Channel 1 for the example application).

Rack 0 Group 1

Slot 0

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Communicating with DeviceNet from Another Network 5-5

9. Click on OK.

You will see the following warning:

10. Verify that the routing information is accurate and click on the Yes

button.

You will be prompted to choose a name for the driver.

11. Enter an appropriate driver name (e.g., 1771-SDNPT-1) and click

on the OK button.

The new driver will be added to the Configured Drivers in RSLinx. (Your list will contain the drivers you have configured.)

12. Close or Minimize RSLinx.

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Communicating with the DeviceNet Network

Once you have the ControlNet pass-through driver configured, you can use RSNetWorx for DeviceNet to communicate with the DeviceNet network via the ControlNet network.

Perform the following steps:

1. Start RSNetWorx.

2. From the File menu, select New.

If you have RSNetWorx for ControlNet installed on your computer you may see the following window. Otherwise, proceed to step 4.

3. Select DeviceNet Configuration and click on OK.

4. Click on the Online button on the toolbar.

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The Browse for network window will appear. You will see the drivers you have configured on your system.

5. Highlight your DeviceNet pass-through driver (1771-SDNPT-1 above) and click on OK.

You will receive the following prompt:

6. Click on OK to upload the devices. RSNetWorx for DeviceNet will begin browsing for network devices.

ATTENTION

Performing a pass-through browse via the ControlNet network will take longer than browsing using the 1770-KFD DeviceNet driver as described in chapter 4.

Note that due to the time required, the pass-through method is not suitable for configuring a network nor for real time monitoring of your network devices.

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5-8 Communicating with DeviceNet from Another Network

When RSNetWorx for DeviceNet is finished browsing, the network displayed on your screen should look similar to the one shown below.

You are now communicating with the DeviceNet network via the ControlNet network. See pages 4-6 to 4-17 of this manual for examples of how to use RSNetWorx for DeviceNet to adjust network parameters.

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Communicating with DeviceNet from Another Network 5-9

Communicating with DeviceNet from an Ethernet Network

Before performing this example the Ethernet network must be configured and running. A 1785-ENET module must be installed on the PLC-5 processor and connected to the network.

See the PLC-5 Ethernet Interface Module User Manual (publication 1785-6.5.19) for more information.

Establishing Ethernet pass-through communications involves four main steps:

1. You use RSLinx to configure the Ethernet to PLC-5 driver. This procedure is described on pages 5-9 to 5-11.

2. You configure the 1785-ENET module’s communications channel and download the configuration to the PLC-5 processor. This can be done using RSLogix 5 software when you create the example ladder program. The Ethernet channel configuration is described in Appendix A.

3. You use RSLinx to configure the DeviceNet pass-through driver to communicate with the 1771-SDN module via the Ethernet network. This procedure is described on pages 5-12 to 5-15.

4. You use the pass-through driver with RSNetWorx for DeviceNet software to adjust and tune your DeviceNet network. This procedure is described on pages 5-15 to 5-17.

Configuring the Ethernet to PLC-5 Communications Driver

To communicate with your PLC-5 processor over an Ethernet network you must configure the Ethernet to PLC-5 driver. Perform the following steps to configure the driver using RSLinx software.

1. Start RSLinx.

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2. From the Communications menu, select Configure Drivers.

3. From the list of Available Driver Types, select the Ethernet to PLC-5/SLC-5/5820-EI driver and click on Add New.

You will be prompted to choose a name for the new driver.

4. Enter an appropriate driver name (e.g., AB_ETH-1) and click on the OK button.

The Configure driver for Ethernet to PLC-5/SLC-5/5820-EI window will open.

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Communicating with DeviceNet from Another Network 5-11

5. In the IP address or hostname field, enter the IP address of the PLC-5 processor (130.130.130.2 in this example).

6. Click on the Accept button. Then click on OK.

The new driver will be added to the list of Configured Drivers in RSLinx. (Your list will contain the drivers you have configured.)

IMPORTANT

You must configure the PLC-5’s communications using BOOTP software or your PLC-5 programming software (e.g., RSLogix 5) before you will be able to communicate with the PLC-5 using this Ethernet address. See Appendix A for information on configuring the PLC-5’s communications using RSLogix 5.

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5-12 Communicating with DeviceNet from Another Network

Configuring the DeviceNet Pass-Through Driver

Before you can communicate with the 1771-SDN module via the Ethernet network, you must configure the DeviceNet pass-through driver (1771-SDNPT). RSLinx, version 2.10 or higher, is required.

Connect your 1785-ENET module to your Ethernet network. Then perform the following steps.

1. Start RSLinx.

2. From the Communications menu, select Configure Drivers.

3. From the list of Available Driver Types select DeviceNet Drivers and click on Add/New.

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Communicating with DeviceNet from Another Network 5-13

You will see the following list of drivers.

4. Select the Allen-Bradley 1771-SDNPT driver.

The Allen-Bradley 1771-SDNPT Driver Configuration window will open.

5. Select a pass-through port to be configured from the pull-down list, e.g., Port 2.

6. Expand your Ethernet driver (AB_ETH-1) and highlight your PLC-5 processor.

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7. Select the 1771-SDN Backplane Address Configuration. We

used the following configuration for the example application.

8. Select the DeviceNet channel (Channel 1 for the example

application).

9. Click on OK.

You will see the following warning:

10. Verify that the routing information is accurate and click on the Yes

button.

You will be prompted to enter a name for the driver.

11. Enter an appropriate driver name (e.g., 1771-SDNPT-2) and click

on the OK button.

Rack 0 Group 1 Slot 0

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Communicating with DeviceNet from Another Network 5-15

The new driver will be added to the list of Configured Drivers in RSLinx. (Your list will contain the drivers you have configured.)

12. Close or Minimize RSLinx.

Communicating with the DeviceNet Network

Once you have the Ethernet pass-through driver configured, you can use RSNetWorx for DeviceNet to communicate with the DeviceNet network via the Ethernet network.

Perform the following steps:

1. Start RSNetWorx.

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2. From the File menu, select New.

If you have RSNetWorx for ControlNet installed on your computer you may see the following window. Otherwise, proceed to step 4.

3. Select DeviceNet Configuration and click on OK.

4. Click on the Online button on the toolbar.

The Browse for network window will appear. You will see the drivers you have configured on your system.

5. Highlight the 1771-SDNPT-2, DeviceNet driver and click on OK.

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You will receive the following prompt:

6. Click on OK to upload the devices. RSNetWorx for DeviceNet will begin browsing for network devices.

When RSNetWorx for DeviceNet is finished browsing, the network displayed on your screen should look similar to the one shown below.

You are now communicating with the DeviceNet network via the Ethernet network. See pages 4-6 to 4-17 of this manual for examples of how to use RSNetWorx for DeviceNet to adjust network parameters.

ATTENTION

Performing a pass-through browse via the Ethernet network will take longer than browsing using the 1770-KFD DeviceNet driver as described in chapter 4.

Note that due to the time required, the pass-through method is not suitable for configuring a network nor for real time monitoring of your network devices.

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Communicating with DeviceNet from a DH+ Network

Before performing this example the DH+ network must be configured

and running. In this example, the PLC-5 processor’s DH+ channel A is configured as node 1. Use your own DH+ configuration when performing this example.

Configuring the DeviceNet Pass-Through Driver

Before you can communicate with the 1771-SDN module via a DH+ network, you must first configure the DeviceNet pass-through driver (1771-SDNPT) with a DH+ port. RSLinx, version 2.10 or higher, is required.

Perform the following steps.

1. Start RSLinx.

2. From the Communications menu, select Configure Drivers.

The Configure Drivers window will appear.

3. Select DeviceNet Drivers from the Available Driver Types pull-down list and click on Add/New.

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You will see the following list of drivers.

4. Select the Allen-Bradley 1771-SDNPT driver.

The Driver Configuration window will appear.

5. Select a pass-through port to be configured from the pull-down list, e.g., Port 3.

6. Expand your DH+ driver (AB_KT-1 above) and highlight the PLC-5 processor.

7. Select the 1771-SDN Backplane Address Configuration. We used the following configuration for the example application.

8. Select the DeviceNet Channel (Channel 1 for the example application).

Rack 0 Group 1

Slot 0

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9. Click on OK.

You will see the following warning:

10. Verify that the routing information is accurate and click on the Yes

button.

You will be prompted to enter a name for the driver.

11. Enter an appropriate driver name (e.g., 1771-SDNPT-3) and click

on the OK button.

The new driver will be added to the Configured Drivers in RSLinx. (Your list will contain the drivers you have configured.)

12. Close or Minimize RSLinx.

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Communicating with the DeviceNet Network

Once you have the DH+ pass-through driver configured, you can use RSNetWorx for DeviceNet to communicate with the DeviceNet network via the DH+ network.

Perform the following steps:

1. Start RSNetWorx.

2. From the File menu, select New.

If you have RSNetWorx for ControlNet installed on your computer you may see the following window. Otherwise, proceed to step 4.

3. Select DeviceNet Configuration and click on OK.

4. Click on the Online button on the toolbar.

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The Browse for network window will appear. You will see the drivers you have configured on your system.

5. Highlight the 1771-SDNPT-3 driver and click on OK.

You will receive the following prompt:

6. Click on OK to upload the devices. RSNetWorx for DeviceNet will begin browsing for network devices.

ATTENTION

Performing a pass-through browse via the DH+ network will take longer than browsing using the 1770-KFD DeviceNet driver as described in chapter 4.

Note that due to the time required, the pass-through method is not suitable for configuring a network nor for real time monitoring of your network devices.

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When RSNetWorx for DeviceNet is finished browsing, the network displayed on your screen should look similar to the one shown below.

You are now online to the DeviceNet network via the Data Highway Plus network. See pages 4-6 to 4-17 of this manual for examples of how to use RSNetWorx for DeviceNet to adjust network parameters.

What’s Next?

The next chapter describes how to create and run the example application program to test the DeviceNet Network.

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1 Publication 1771-6.5.132 - June 2000

Chapter

Creating and Running the Example Application Program

What This Chapter Contains

This chapter describes the procedure to create, download, and run an example ladder logic program to test the DeviceNet network. When the program is put into Run mode, pressing the START button on the

network’s RediSTATION will cause the red indicator light to come on and stay on until the STOP button is pressed. Passing an object in front of the photoeye will increment a counter.

This chapter provides examples of downloading and running the program over ControlNet, Ethernet, and Data Highway Plus networks. You cannot directly communicate with the PLC-5 processor over the DeviceNet network.

The 1771 I/O chassis used for these examples was set up with the following hardware:

The following table describes what this chapter contains and where to find specific information.

For more information, see Getting Results With RSLogix 5, Rockwell Software publication 9399-RL53GR.

Module Rack Group Slot IP Address

PLC-5/1785-ENET 0 0 0 130.130.130.2

1771-SDN 0 1 0 n/a

For information about See page

Installing the Software 6-2

Creating the Example Application Program 6-2

Downloading and Running the Program 6-6

Downloading and Running the Program via a ControlNet Network 6-6

Downloading and Running the Program via an Ethernet Network 6-9

Downloading and Running the Program via a DH+ Network 6-12

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6-2 Creating and Running the Example Application Program

Installing the Software

Install the RSLogix 5 software.

1. Insert the CD in the CD-ROM drive.

Note: The CD-ROM supports Windows Autorun. Once inserted into

the CD-ROM drive, if you have Autorun configured, the installation will automatically start at the first setup screen.

If Autorun is not configured for your CD-ROM drive, go to step 2.

2. From the Start menu, choose Run.

You will see the Run pop-up window.

3. Type d:/setup (if it doesn’t appear automatically), where d: is your CD-ROM driver letter.

4. Click on OK.

You see the progress bar, followed by the welcome screen.

Creating the Example Application Program

Perform the following steps to create the example application program.

1. Start RSLogix 5.

2. From the File menu select New.

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Creating and Running the Example Application Program 6-3

The Select Processor Type window will open.

3. Enter the following information and click on OK.

In this field Select or Enter

Processor Name DNET_PLC

Platform ControlNet

Processor (Select your processor type)

Series (Select your processor’s series)

Revision (Enter revision letter)

Driver

(Select a Driver)

(1)

You can use the Who Active button to select your communications driver. This is described in the

“Downloading” sections of this chapter.

Processor Node

(Enter the Processor Node)

(1)

TIP

Ignore any prompts or warnings you receive about specifying ControlNet project files. That is not necessary for this example.

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6-4 Creating and Running the Example Application Program

4. Enter the following ladder program.

5. Save the program using an appropriate name, e.g., “DNET_PLC”.

Input data file mapped by RSNetWorx for DeviceNet

Output data file mapped by RSNetWorx for DeviceNet

RediSTATION Start bit

RediSTATION Stop bit

RediSTATION Indicator Light bit

Photoeye input bit

Length of 62 specifies the first data block. See the Automapping

Length of 62 specifies the first data block. See the Automapping example in chapter 4.

example in chapter 4.

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See the 1771-SDN DeviceNet Scanner Module Installation Instructions (publication 1771-5.14) for more information on using the scanner module command register.

IMPORTANT

The first word of the BTW downloaded from the PLC-5 to block 62 is reserved as the scanner module command register. You must set bit 0 of the

command register to “1” to place the scanner’s DeviceNet Channel 1 in run mode. You can do this by double-clicking on file N10 in the project window and manually setting N10:0, bit 0 to “1” as shown below.

Note: Set bit 2 to place Channel 2 in run mode.

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Downloading and Running the Program

The remaining sections of this chapter provide examples of downloading and running the program via the following networks:

•

ControlNet (page 6-6)

•

Ethernet (page 6-9)

•

Data Highway Plus (page 6-12)

Downloading and Running the Program via a ControlNet Network

Follow the procedure below to download and run the example program via a ControlNet network.

1. Click on the RSLogix 5 Comms menu and select System Communications.

2. Click on the Who Active button.

Rockwell Automation DEVICENET 1771-SDN User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual