Devicenet Scanner Module, Apuntes de Robótica

¡Descarga Devicenet Scanner Module y más Apuntes en PDF de Robótica solo en Docsity!

1769-SDN DeviceNet Scanner Module

Catalog Numbers 1769-SDN

User Manual

Important User Information

Solid state equipment has operational characteristics differing from those of electromechanical equipment. Safety Guidelines

for the Application, Installation and Maintenance of Solid State Controls (publication SGI-1.1 available from your local Rockwell

Automation sales office or online at http://www.rockwellautomation.com/literature/) describes some important differences

between solid state equipment and hard-wired electromechanical devices. Because of this difference, and also because of the

wide variety of uses for solid state equipment, all persons responsible for applying this equipment must satisfy themselves that

each intended application of this equipment is acceptable.

In no event will Rockwell Automation, Inc. be responsible or liable for indirect or consequential damages resulting from the use

or application of this equipment.

The examples and diagrams in this manual are included solely for illustrative purposes. Because of the many variables and

requirements associated with any particular installation, Rockwell Automation, Inc. cannot assume responsibility or liability for

actual use based on the examples and diagrams.

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

described in this manual.

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

prohibited.

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

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

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

WARNING Identifies information about practices or circumstances that can cause an explosion in a hazardous environment, which may lead to personal injury or death, property damage, or economic loss.

IMPORTANT (^) Identifies information that is critical for successful application and understanding of the product.

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

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

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

Summary of Changes

Table of Contents

Use the 1769-SDN Scanner Module with MicroLogix Appendix B CompactLogix Backup on the Glossary

• Preface About This Manual
  • Who Should Use This Manual.
  • Conventions in This Manual
  • Additional Resources
  • Chapter
• Overview Introduction
  • Module Features.
  • Scanner Module Operation
  • Communication with Your Slave Devices
  • 1769-SDN Scanner Module Data Tables
    • Input Data Image - MicroLogix 1500.
    • Output Data Image - MicroLogix
    • Input Data Image - CompactLogix.
    • Output Data Image - CompactLogix
  • RSNetWorx for DeviceNet Software as a Configuration Tool
  • Chapter
• Quick Start for Experienced Users Introduction
  • Required Tools and Equipment
  • What You Need to Do.
  • Chapter
• Installation and Wiring Power Requirements
  • General Considerations
    • Hazardous Location Considerations.
    • Preventing Electrostatic Discharge
    • Removing Power
    • Reducing Noise
    • Protecting the Circuit Board from Contamination
  • System Planning
  • System Assembly
  • System Mounting
    • Minimum Spacing
    • Panel Mounting
    • DIN Rail Mounting
  • Replace the Scanner Module within a System.
  • Field Wiring Connections
    • Grounding the Scanner Module
  • Scanner Module Power-up.
• Chapter Table of Contents
• Introduction DeviceNet Network
• How AutoScan Operates
• Determine If You Can Use AutoScan.
• How AutoScan Effects Your Network.
• Connect Each Device to the Network
  • Configuration Terminal Set the Baud Rate of a Device Via a DeviceNet
  • Configuration Terminal Set the Node Address of a Device Via a DeviceNet
• Add the Scanner to the RSLogix 5000 Project
  • Add the Scanner to the I/O Configuration Folder
  • Define the Properties of the Scanner
• Implement AutoScan
  • Initiate AutoScan Via the User Program
  • Initiate AutoScan via the 193-DNCT Terminal
• Additional Considerations Regarding AutoScan
  • Type of Connection that the Scanner Sets Up
• Access Device Data
• Put the Scanner in Run Mode
• Chapter
• Introduction Network
• Software Versions
• Install the Software.
• Use RSLinx Software to Configure Your DeviceNet Driver.
• the 1769-SDN Scanlist. Use RSNetWorx for DeviceNet Software to Configure
  • Set Up an Online Connection
  • Set the Node Address
  • Configure the I/O Devices
  • General Tab
  • Module Tab
  • Scanlist Tab
  • Input Tab
  • Auto Device Replacement (ADR) Tab.
  • Summary Tab
  • Download and Save Your Configuration
  • Chapter Table of Contents
• DeviceNet I/O Image Introduction
  • 1769-SDN Input Structure
  • MicroLogix 1500 Status Structure
    • Scan Counter
    • Device Failure Array
    • Autoverify Failure Array
    • Slave Device Idle Array
    • Active Node Array.
    • Scanner Module Status
    • Reserved Array.
    • Device Status Array
    • Module Status Register
  • CompactLogix Status Structure
    • Scan Counter
    • Device Failure Register
    • Autoverify Failure Register
    • Device Idle Register.
    • Active Node Register.
    • Status Display.
    • Scanner Address.
    • Scanner Status
    • Scrolling Device Address.
    • Scrolling Device Status
    • Device Status
  • CompactLogix Status Register.
    • Run
    • Fault
    • Disable Network
    • Device Failure
    • Autoverify Failure
    • Comm Failure
    • Dup Node Failure
    • Dnet Power Detect
  • CompactLogix Command Register
    • Run
    • Fault
    • Disable Network
    • Halt Scanner.
    • Reset
  • Input Data Image
  • 1769-SDN Output Structure
  • Chapter Table of Contents
  • Introduction Controllers
  • MicroLogix 1500 Controllers.
  • RSLogix 500 Programming Software I/O Configuration
    • Start the Project
    • I/O Configuration Screen
    • Read I/O Configuration
    • Installed I/O
    • 1769-SDN Scanner Module Configuration
    • Changing the 1769-SDN Configuration
  • Backplane Messaging
    • PCCC Messaging
  • Program Upload and Download
  • Configure a Local DeviceNet Message
    • Message Setup Dialog
  • MSG Instruction Error Codes.
  • Chapter
• Troubleshooting Introduction
  • Status Indicators
  • Error Codes
• 1769-SDN DeviceNet Class Codes Introduction Appendix A
  • Introduction DeviceNet Network
  • How the Backup Works.
    • Backup System Requirements
  • Configure the Backup System
  • Develop the CompactLogix Backup Application.
    • Backup Heartbeat Configuration Rungs.
    • Reading Backup State Rung
    • Reading Backup Status
  • Using Indicators to Check Status
    • Module Status Indicator
    • Node Address and Status Display.
  • Development and Debugging Tips

Preface Preface

Conventions in This Manual The following conventions are used throughout this manual:

• Bulleted lists such as this one provide information, not procedural steps.
• Numbered lists provide sequential steps or hierarchical information.

Additional Resources The following documents contain additional information concerning Rockwell

Automation products. Contact your local Rockwell Automation distributor to

order hard copy publications. For electronic copies, go to

http://literature.rockwellautomation.com.

Resource Description DeviceNet Modules in Logix5000 Control Systems User Manual, publication DNET-UM

Describes configuring the CompactLogix controllers on the DeviceNet network.

ControlNet Modules in Logix5000 Control Systems User Manual, publication CNET-UM

Describes configuring the CompactLogix controllers on the ControlNet network.

RSNetWorx for DeviceNet Getting Results Guide, publication DNET-GR

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

CompactLogix System User Manual, publication 1769-UM

Describes planning, mounting, wiring, and troubleshooting your CompactLogix system. This manual focuses on the 1769-L20 and 1796-L30 CompactLogix controllers. MicroLogix 1500 Programmable Controllers User Manual, publication 1764-UM

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

Compact I/O Analog Modules User Manual, publication 1769-UM

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

DeviceNet Interface User Manual, publication 1761-UM

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

DeviceNet Media Design and Installation Guide, publication DNET-UM

DeviceNet network planning information

Industrial Automation Wiring and Grounding Guidelines, publication 1770-4.

Grounding and wiring Allen-Bradley programmable controllers

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

Wire sizes and types for grounding electrical equipment

Chapter 1

Overview

Introduction This chapter provides an overview of communication between the

CompactLogix and MicroLogix 1500 programmable controllers and

DeviceNet devices via the 1769-SDN scanner module.

The configuration data tables and the RSNetWorx for DeviceNet dialog boxes

used to configure the data tables are also described in this chapter. Before

configuring your scanner, you must understand these items:

• Data exchange between the programmable controller and DeviceNet

devices through the scanner

• User-configurable scanner module data tables
• Role of RSNetWorx for DeviceNet software

These topics are covered briefly in this chapter and in more detail throughout

the rest of the manual.

Topic Page

Module Features 12

Scanner Module Operation 13

Communication with Your Slave Devices 14

1769-SDN Scanner Module Data Tables 15

RSNetWorx for DeviceNet Software as a Configuration Tool 17

Overview Chapter 1

Scanner Module Operation In a typical configuration, the scanner module acts as an interface between

DeviceNet devices and the programmable controller.

Device Network

The scanner module communicates with DeviceNet devices over the network

to:

• Read inputs from slave devices
• Write outputs to slave devices
• Communicate with peer devices (messaging)
• Upload/download programs to a 1764-LRP based MicroLogix 1500

controller across a DeviceNet network

CompactLogix controller with 1769-SDN scanner

MicroLogix 1500 controller with 1769-SDN scanner

PLC with RSNetWorx for DeviceNet software

1784-PCD Interface card

1734 POINT I/O E3 Overload Relay

PowerFlex 40 Drive Enhanced DeviceNet Communications Module

MicroLogix 1000 Controller with 1761-NET-DNI

MicroLogix 1200 Controller with 1761-NET-DNI

Chapter 1 Overview

Communication with Your

Slave Devices

The scanner module communicates with devices via strobe, poll, change of

state, or cyclic I/O messages. It uses these messages to solicit data from or

deliver data to each device. Data received from the devices, input data, is

organized by the scanner module and made available to the controller. Data

sent from your controller, output data, is organized in the scanner module and

sent on to your devices.

• A strobe message is a multicast transfer of data that is 64 bits in length

sent by the scanner module that initiates a response from each strobed

slave device.

The strobe devices respond with their data, which can be as much as 8

bytes of information. As a slave device, the scanner module does not

support the strobe message.

• A poll message is a point-to-point transfer of data from 0...128 bytes

sent by the scanner module to the slave device.

The poll message also initiates a response from each poll slave. The slave

device responds with its input data from 0...128 bytes.

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

change occurs.

A user-configurable heartbeat rate allows devices to indicate proper

operation during intervals between data changes.

• A cyclic message is a transfer of data sent at a specific user-configurable

rate, such as every 50 ms.

In addition to I/O messaging, the scanner module also supports PCCC and

CIP explicit messaging, defined later in this manual.

IMPORTANT Throughout this document, input and output are defined from

the controller’s point of view. Output is data sent from the

controller to a device. Input is data collected by the controller

from a device.

Chapter 1 Overview

Input Data Image - CompactLogix

The input data image is transferred from the scanner module to the controller

across the Compact I/O bus.

Output Data Image - CompactLogix

The output data image is transferred from the controller to the scanner

module across the Compact I/O bus.

For additional information about the CompactLogix image structure, refer to

the DeviceNet Modules in Logix5000 Control Systems User Manual,

publication DNET-UM004.

Module Command Array Bit Assignments

Output Word

Bit Description Behavior

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

1 Fault When set, the scanner’s I/O mode will be Halt; messaging will still operate. The fault bit is primarily used to artificially set the slave devices into a fault state due to some event or condition within the control program.

2 Disable network When set, the scanner module is functionally removed from the network.

(^3) Reserved (1)^ N/A

4 Reset Restarts access to the DeviceNet network.

5…15 (^) Reserved (1)^ N/A

1 16…31 (^) Reserved (1)^ N/A

(1) (^) Do not manipulate reserved bits. Doing so may interfere with future compatibility.

Word Description Data Type

0…89 DeviceNet slave inputs 90-DINT array

Word Description Data Type

0…89 DeviceNet slave outputs 90-DINT array

Overview Chapter 1

RSNetWorx for DeviceNet

Software as a

Configuration Tool

RSNetWorx for DeviceNet software is used to configure the scanner’s slave

devices. This software tool connects to the scanner module over the

DeviceNet network via an RS-232 interface (1770-KFD module) or PC card

(1784-PCD or 1784-PCID).

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

If your RSNetWorx configuration software does not include the required

electronic data sheet (EDS) file, go to http://www.ab.com/networks/eds.

Register the new EDS file by using the EDS wizard in RSNetWorx for

DeviceNet software. Access the wizard from the Tools menu. This

configuration tool lets you to identify all of the DeviceNet devices and their

locations in your system.

The controller must be in Program mode, or the scanner module in Idle mode

(bit 0 of the Module Command Array = 0) for the scanner module to accept

the configuration information.

Chapter 2

Quick Start for Experienced Users

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

Procedures are based on the assumption that you have an understanding of

Rockwell Automation controllers. You should understand electronic process

control and be able to interpret the ladder logic instructions required to

generate the electronic signals that control your application. Because it is a

start-up guide for experienced users, this chapter does not contain detailed

explanations about the procedures listed.

Required Tools and

Equipment

Have the following tools and equipment ready:

• Personal computer
• Programmable controller: CompactLogix or MicroLogix 1500 system
• 1770-KFD RS-232 DeviceNet adapter or 1784-PCIDS, 1784-U2DN

DeviceNet interface card

• For network communication: RSLinx software, version 2.30 or later
• For DeviceNet network configuration: - RSNetWorx for DeviceNet software, version 3.00 or later
• For ladder logic programming: - RSLogix 500 programming software, version 5.00.10 or later, or - RSLogix 5000 programming software, version 8.02 or later
• 1769-SDN scanner module
• Mounting hardware
• Screwdriver

Topic Page

Required Tools and Equipment 19

What You Need to Do 20

Chapter 2 Quick Start for Experienced Users

What You Need to Do Follow these steps to get started using the 1769-SDN scanner module.

1. Verify planned system configuration.

a. Ensure system power supply has sufficient current.

The scanner module cannot be located more than four modules away

from the system power supply.

b. Verify that the DeviceNet network has adequate power.

2. Remove power.

Maximum Current Draw

Module 5V DC 24V DC

1769-SDN 440 mA 0 mA

DeviceNet Power Requirements

Module DeviceNet Power Requirements

1769-SDN N.E.C. Class 2

90 mA @ 11V DC, max.

110 mA @ 25V DC, max.

200 mA for 1.5 ms inrush

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

• sending an erroneous signal to your system’s field devices, causing unintended machine motion.
• causing an explosion in a hazardous environment. Electrical arcing causes excessive wear to contacts on both the module and its mating connector and can lead to premature failure.