Rockwell Automation Allen-Bradley Logix 5000 Series Betriebsanleitung

Programming Manual

Logix 5000 Controllers Tasks, Programs, and Routines

1756 ControlLogix, 1756 GuardLogix, 1769 CompactLogix, 1769 Compact GuardLogix,

1789 SoftLogix, 5069 CompactLogix, 5069 Compact GuardLogix, Studio 5000 Logix Emulate

Important user information

Read this document and the documents listed in the additional resources section about installation, configuration, and operation of this equipment

before you install, configure, operate, or maintain this product. Users are required to familiarize themselves with installation and wiring instructions

in addition to requirements of all applicable codes, laws, and standards.

Activities including installation, adjustments, putting into service, use, assembly, disassembly, and maintenance are required to be carried out by

suitably trained personnel in accordance with applicable code of practice. If this equipment is used in a manner not specified by the manufacturer,

the protection provided by the equipment may be impaired.

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.

WARNING: Identifies information about practices or circumstances that can cause an explosion in a hazardous environment, which may lead to

personal injury or death, property damage, or economic loss.

ATTENTION: Identifies information about practices or circumstances that can lead to personal injury or death, property damage, or economic

loss. Attentions help you identify a hazard, avoid a hazard, and recognize the consequence

Important: Identifies information that is critical for successful application and understanding of the product.

Labels may also be on or inside the equipment to provide specific precautions.

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.

ARC FLASH HAZARD: Labels may be on or inside the equipment, for example, a motor control center, to alert people to potential Arc Flash. Arc

Flash will cause severe injury or death. Wear proper Personal Protective Equipment (PPE). Follow ALL Regulatory requirements for safe work

practices and for Personal Protective Equipment (PPE).

Allen-Bradley, Rockwell Software, Rockwell Automation, and TechConnect are trademarks of Rockwell Automation, Inc.

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

Rockwell Automation Publication 1756-PM005H-EN-P - February 2018 3

Summary of changes

This manual contains new and updated information. There are a number of minor

changes throughout this publication that were made to clarify existing

information. The major changes are listed in the following table.

Change Topic

Updated the list of supported controllers. Cover

Updated screen shots. Throughout

Rockwell Automation Publication 1756-PM005H-EN-P - February 2018 5

Table of contents

Studio 5000 environment....................................................................................................7

Additional resources.............................................................................................................7

Legal notices ...........................................................................................................................8

Chapter 1

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

Select Controller Tasks..................................................................................................... 11

Use Caution in the Number of Tasks That You Use......................................... 13

Prioritize Periodic and Event tasks................................................................................. 13

Additional Considerations....................................................................................... 14

Example ........................................................................................................................ 15

Leave Enough Time for Unscheduled Communication............................................ 16

Avoid Overlaps ................................................................................................................... 17

Manually Check for Overlaps.................................................................................. 18

Programmatically Check for Overlaps................................................................... 19

Configure Output Processing for a Task....................................................................... 21

Manually Configure Output Processing ............................................................... 23

Programmatically Configure Output Processing ................................................ 24

Inhibit a Task...................................................................................................................... 25

Manually Inhibit or Uninhibit a Task................................................................... 25

Programmatically Inhibit or Uninhibit a Task .................................................... 26

Create a Task....................................................................................................................... 27

Create a Periodic Task............................................................................................... 29

Language Switching ................................................................................................... 30

Adjust the System-overhead Time Slice ........................................................................ 31

Configure the System-overhead Time Slice.......................................................... 32

Adjust the System Watchdog Time ............................................................................... 34

Adjust the Watchdog Timer for a Task................................................................. 34

Chapter 2

Introduction........................................................................................................................ 37

Choose the trigger for an event task............................................................................... 37

Module Input Data State Change Trigger.................................................................... 40

How an I/O Module Triggers an Event Task...................................................... 40

Make Sure Your Module Can Trigger an Event Task........................................ 43

Checklist for an Input Event Task.......................................................................... 43

Example – Input Event Task ................................................................................... 45

Estimate Throughput................................................................................................ 46

Example - Estimate Throughput............................................................................. 47

Additional Considerations....................................................................................... 48

Motion Group Trigger...................................................................................................... 49

Preface

Manage Tasks

Manage Event Tasks

Table of contents

6Rockwell Automation Publication 1756-PM005H-EN-P - February 2018

Checklist for a Motion Group Task....................................................................... 51

Axis Registration Trigger.................................................................................................. 51

Checklist for an Axis Registration Task ................................................................ 52

Example - Axis Registration Trigger....................................................................... 53

Axis Watch Trigger............................................................................................................ 55

Checklist for an Axis Watch Task.......................................................................... 56

Example - Axis Watch Trigger................................................................................. 56

Consumed Tag Trigger..................................................................................................... 59

Maintain the Integrity of Data ................................................................................ 61

Synchronize multiple controllers............................................................................ 62

Checklist for the Producer Controller................................................................... 62

Checklist for the Consumer Controller................................................................ 63

Example - Producer Controller and Consumer Controller .............................. 64

Producer Controller .................................................................................................. 64

Produced Tag Properties................................................................................... 65

Ladder Logic........................................................................................................ 65

Consumer Controller................................................................................................ 65

Event Task Properties........................................................................................ 65

Ladder Diagram in the Event Task................................................................. 66

EVENT Instruction Trigger............................................................................................ 67

Programmatically Determine if EVENT Instruction Triggered Task............ 68

Checklist for an EVENT Instruction Task .......................................................... 68

Example – EVENT Instruction Trigger................................................................ 69

Event Task Properties........................................................................................ 69

Ladder Diagram in Program_A....................................................................... 69

Ladder Diagram in Program_B ....................................................................... 69

Define a Timeout Value for an Event Task .................................................................. 70

Assign a Timeout Value to an Event Task ............................................................ 71

Programmatically Configure a Timeout................................................................ 72

Programmatically determine if a timeout occurs................................................. 72

Index

Rockwell Automation Publication 1756-PM005H-EN-P - February 2018 7

Preface

This manual is one of a set of related manuals that show common procedures for

programming and operating Logix 5000™ controllers.

For a complete list of common procedures manuals, refer to the Logix 5000

Controllers Common Procedures Programming Manual, publication 1756-

PM001.

The term Logix 5000 controller refers to any controller that is based on the Logix

5000 operating system.

The Studio 5000 Automation Engineering & Design Environment® combines

engineering and design elements into a common environment. The first element is

the Studio 5000 Logix Designer® application. The Logix Designer application is

the rebranding of RSLogix 5000® software and will continue to be the product to

program Logix 5000™ controllers for discrete, process, batch, motion, safety, and

drive-based solutions.

The Studio 5000® environment is the foundation for the future of

Rockwell Automation® engineering design tools and capabilities. The Studio 5000

environment is the one place for design engineers to develop all elements of their

control system.

These documents contain additional information concerning related Rockwell

Automation products.

Resource Description

Industrial Automation Wiring and Grounding Guidelines,

publication 1770-4.1

Provides general guidelines for installing a Rockwell

Automation industrial system.

Product Certifications webpage, available at

http://ab.rockwellautomation.com

Provides declarations of conformity, certificates, and other

certification details.

Studio 5000 environment

Additional resources

Preface

8Rockwell Automation Publication 1756-PM005H-EN-P - February 2018

You can view or download publications at

http://www.rockwellautomation.com/literature. To order paper copies of

technical documentation, contact your local Rockwell Automation distributor or

sales representative.

Printed in USA.

This document and any accompanying Rockwell Software products are

copyrighted by Rockwell Automation Technologies, Inc. Any reproduction

and/or distribution without prior written consent from Rockwell Automation

Technologies, Inc. is strictly prohibited. Please refer to the license agreement for

details.

End User License Agreement (EULA)

You can view the Rockwell Automation End-User License Agreement ("EULA")

by opening the License.rtf file located in your product's install folder on your hard

drive.

Other Licenses

The software included in this product contains copyrighted software that is

licensed under one or more open source licenses. Copies of those licenses are

included with the software. Corresponding Source code for open source packages

included in this product can be located at their respective web site(s).

You may alternately obtain complete Corresponding Source code by contacting

Rockwell Automation via our Contact form on the Rockwell Automation

website: http://www.rockwellautomation.com/global/about-

us/contact/contact.page.

Please include "Open Source" as part of the request text.

A full list of all open source software used in this product and their corresponding

licenses can be found in the OPENSOURCE folder included with the Release

Notes. The default installed location of these licenses is C:\Program Files

(x86)\Common

Files\Rockwell\Help\<Product>\ReleaseNotes\OPENSOURCE\index.htm.

Trademark Notices

Allen-Bradley, ControlBus, ControlFLASH, Compact GuardLogix, Compact

I/O, ControlLogix, CompactLogix, DCM, DH+, Data Highway Plus,

DriveLogix, DPI, DriveTools, Explorer, FactoryTalk, FactoryTalk Administration

Console, FactoryTalk Alarms and Events, FactoryTalk Batch, FactoryTalk

Directory, FactoryTalk Security, FactoryTalk Services Platform, FactoryTalk

Legal notices

Preface

Rockwell Automation Publication 1756-PM005H-EN-P - February 2018 9

View, FactoryTalk View SE, FLEX Ex, FlexLogix, FLEX I/O, Guard I/O, High

Performance Drive, Integrated Architecture, Kinetix, Logix5000, Logix 5000,

Logix5550, MicroLogix, DeviceNet, EtherNet/IP, PLC-2, PLC-3, PLC-5,

PanelBuilder, PowerFlex, PhaseManager, POINT I/O, PowerFlex, Rockwell

Automation, RSBizWare, Rockwell Software, RSEmulate, Historian,

RSFieldbus, RSLinx, RSLogix, RSNetWorx for DeviceNet, RSNetWorx for

EtherNet/IP, RSMACC, RSView, RSView32, Rockwell Software Studio 5000

Automation Engineering & Design Environment, Studio 5000 View Designer,

SCANport, SLC, SoftLogix, SMC Flex, Studio 5000, Ultra 100, Ultra 200,

VersaView, WINtelligent, XM, SequenceManager are trademarks of Rockwell

Automation, Inc.

Any Rockwell Automation logo, software or hardware product not mentioned

herein is also a trademark, registered or otherwise, of Rockwell Automation, Inc.

Other Trademarks

CmFAS Assistant, CmDongle, CodeMeter, CodeMeter Control Center, and

WIBU are trademarks of WIBU-SYSTEMS AG in the United States and/or

other countries. Microsoft is a registered trademark of Microsoft Corporation in

the United States and/or other countries. ControlNet is a trademark of

ControlNet International. DeviceNet is a trademark of the Open DeviceNet

Vendors Association (ODVA). Ethernet/IP is a trademark of ControlNet

International under license by ODVA.

All other trademarks are the property of their respective holders and are hereby

acknowledged.

Warranty

This product is warranted in accordance with the product license. The product’s

performance may be affected by system configuration, the application being

performed, operator control, maintenance, and other related factors. Rockwell

Automation is not responsible for these intervening factors. The instructions in

this document do not cover all the details or variations in the equipment,

procedure, or process described, nor do they provide directions for meeting every

possible contingency during installation, operation, or maintenance. This

product’s implementation may vary among users.

This document is current as of the time of release of the product; however, the

accompanying software may have changed since the release. Rockwell Automation,

Inc. reserves the right to change any information contained in this document or

the software at any time without prior notice. It is your responsibility to obtain the

most current information available from Rockwell when installing or using this

product.

Preface

10 Rockwell Automation Publication 1756-PM005H-EN-P - February 2018

Environmental compliance

Rockwell Automation maintains current product environmental information on

its website at http://www.rockwellautomation.com/rockwellautomation/about-

us/sustainability-ethics/product-environmental-compliance.page

Contact Rockwell Automation

Customer Support Telephone — 1.440.646.3434

Online Support — http://www.rockwellautomation.com/support/

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