Rockwell Automation Allen-Bradley Logix 5000 Series Betriebsanleitung

Programming Manual

Logix 5000 Controllers Program Parameters

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-PM021C-EN-P - February 2018 3

Summary of changes

This manual includes new and updated information. Use these reference tables to

locate changed information.

Grammatical and editorial style changes are not included in this summary.

Global changes

This table identifies changes that apply to all information about a subject in the

manual and the reason for the change. For example, the addition of new supported

hardware, a software design change, or additional reference material would result

in changes to all of the topics that deal with that subject.

Subject Reason

Updated screen shots throughout. The Studio 5000 Logix Designer® interface has been modified in

versions 31 and later.

New or enhanced features

This table contains a list of topics changed in this version, the reason for the

change, and a link to the topic that contains the changed information.

Topic Name Reason

Cover Added 5069 CompactGuardLogix to the list of supported controllers.

Rockwell Automation Publication 1756-PM021C-EN-P - February 2018 5

Table of contents

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

Additional resources.............................................................................................................8

Important terminology ........................................................................................................8

Legal notices ...........................................................................................................................9

Chapter 1

Introduction........................................................................................................................ 13

Program parameters........................................................................................................... 13

Program parameter connection methods.............................................................. 14

Program parameter connection syntax .................................................................. 17

User-defined type sub-element connection considerations............................... 18

Input parameters ................................................................................................................ 18

Input parameter connection types and uses.......................................................... 18

General rules for using Input parameters .............................................................. 18

Connect an Input parameter to a controller scope tag....................................... 19

Output parameters............................................................................................................. 21

Output parameter connection types and uses ...................................................... 22

General rules for using Output parameters........................................................... 22

Connect an Output parameter to a controller scope tag.................................... 23

Connect an Output parameter to another program........................................... 24

InOut parameters............................................................................................................... 26

InOut parameter connection types and uses ........................................................ 26

General rules for using InOut parameters............................................................. 27

Connect an InOut parameter to a controller scope tag...................................... 27

Public parameters............................................................................................................... 29

Public parameter connection types and uses......................................................... 29

General rules for using Public parameters............................................................. 29

Connect a Public parameter to another program................................................ 30

Safety program parameters............................................................................................... 32

General rules for connecting parameters for safety programs ........................... 32

Program parameter connection rules ............................................................................. 33

Standard program to standard program connection rules ................................. 33

Safety program to safety program connection rules ............................................ 34

Safety program to standard program connection rules....................................... 35

Preface

Connecting program

parameters

Table of contents

6Rockwell Automation Publication 1756-PM021C-EN-P - February 2018

Chapter 2

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

Direct access ........................................................................................................................ 37

Behavior of direct access in logic ............................................................................. 37

Access program parameters when editing ladder logic........................................ 38

Directly accessing program

parameters

Index

Rockwell Automation Publication 1756-PM021C-EN-P - February 2018 7

Preface

This manual shows how to create and configure program parameters. 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.

Studio 5000 environment

Preface

8Rockwell Automation Publication 1756-PM021C-EN-P - February 2018

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.

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.

This table defines the terms that are important to understanding the concepts

described in this manual.

Term Definition

Argument An argument is assigned to a parameter and contains the

specification of the data used by an instruction in a user

program. An argument can contain the following:

•A simple tag (for example, L101)

•A literal value (for example, 5)

•A tag structure reference (for example,

Recipe.Temperature)

•A direct array reference (for example, Buffer[1])

•An indirect array reference (for example, Buffer[Index+1])

•A combination (for example, Buffer[Index+1].Delay)

InOut parameter An InOut parameter is a special usage program parameter that

represents a reference to data that can be used both as input

and output during the execution of a program. Because InOut

parameters pass by reference rather than by value, they are

merely a pointer to the original data and closely resemble the

behavior of an alias tag. With that in mind, it is possible that

the InOut parameter values could change during the execution

of a program. Depending on your task structure, this behavior

may be necessary.

Input parameter An Input parameter is a parameter that defines the data that is

passed by value into an executing program. Since Input

parameters are passed by value, their values cannot change

from external sources during the execution of the program. An

Input parameter supports a maximum of one sourcing

connection.

Additional resources

Important terminology

Preface

Rockwell Automation Publication 1756-PM021C-EN-P - February 2018 9

Output parameter

An Output parameter is a parameter that

defines the data that is produced as a

direct result of executing a program. Since

Output parameters are always passed by

value, their values only change at the end

of the scan of a program when the copy of

the parameters has executed.

Tip: If using direct access another program can be a

source for an Output parameter.

Passed by reference When an argument is passed to a parameter by reference, the

logic directly reads or writes the value that the tag uses in

controller memory. External code or HMI interaction that

changes the argument’s value can change the value during

execution of a program.

Passed by value When an argument is passed to a parameter by value, the

value is copied in or out of the parameter during execution of a

program. The value of the argument does not change from

external code or HMI interaction.

Public parameter A Public parameter is an encapsulated version of a controller

scope tag, and typically it is used for large data structures that

need to be shared among programs.

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).

Legal notices

Preface

10 Rockwell Automation Publication 1756-PM021C-EN-P - February 2018

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.

The following open source software is used in this product:

Software Copyright License Name License Text

MIT License Bootstrap 3.3.7 License

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

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.

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