Rockwell Automation Allen-Bradley Logix 5000 Series Betriebsanleitung

Rockwell Automation Publication 1756-PM013H-EN-P - March 2022

Supersedes Publication 1756-PM013G-EN-P - September 2020

Programming Manual

Original Instructions

Logix 5000 Controllers

ASCII Strings

1756 ControlLogix, 1756 GuardLogix, 1769 CompactLogix,

1769 Compact GuardLogix, 1789 SoftLogix, 5069

CompactLogix, 5069 Compact GuardLogix, Studio 5000

Logix Emulate

Logix 5000 Controllers ASCII Strings

2 Rockwell Automation Publication 1756-PM013H-EN-P - March 2022

Important User Information

Read this document and thedocuments 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 inaccordance 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 orliable 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, withoutwritten 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, whichmay 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 peoplethat 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).

Rockwell Automation recognizes that some of the terms that are currently used in our industry and in this publication are not in

alignment with the movement toward inclusive language intechnology. We are proactively collaborating with industry peers to

find alternatives to such terms and making changes to our products and content. Please excuse the use of such terms in our

content while we implement these changes.

Rockwell Automation Publication 1756-PM013H-EN-P - March 2022 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.

Change

Topic

Updated Legal notices.

Legal notices

New or enhanced features

None in this release.

Rockwell Automation Publication 1756-PM013H-EN-P - March 2022 5

Table of Contents

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

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

Legal Notices ................................................................................................8

Chapter 1

Introduction.................................................................................................9

Connect the ASCII device............................................................................9

Configure the Serial Port...........................................................................10

Configure the User Protocol......................................................................12

Create string data types.............................................................................13

Read characters from the device ...............................................................14

Send characters to the device ....................................................................15

Enter ASCII characters ..............................................................................16

Chapter 2

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

Extract a part of a Bar Code ...................................................................... 19

Look up a Bar Code....................................................................................20

Create the PRODUCT_INFO Data Type ............................................20

Search for the characters.....................................................................21

Identify the Lane Number...................................................................21

Reject bad characters .......................................................................... 22

Enter the Product IDs and Lane Numbers........................................ 22

Check the Bar Code characters................................................................. 22

Convert a value ...........................................................................................23

Decode an ASCII message ........................................................................ 24

Build a string ............................................................................................. 25

Appendix A

ASCII character codes ...............................................................................27

Summary of Changes

Preface

Communicating with an ASCII

device

Processing ASCII characters

ASCII character codes

Index

Rockwell Automation Publication 1756-PM013H-EN-P - March 2022 7

Preface

This manual shows how to manipulate ASCII strings in Logix 5000

controllers. 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 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

8 Rockwell Automation Publication 1756-PM013H-EN-P - March 2022

View or download publications at

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

technical documentation, contact the local Rockwell Automation distributor

or sales representative.

Rockwell Automation publishes legal notices, such as privacy policies, license

agreements, trademark disclosures, and other terms and conditions on the

Legal Notices page of the Rockwell Automation website.

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.

Open Source 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 are located at their respective web site(s).

Alternately, obtain complete Corresponding Source code by contacting

Rockwell Automation via the 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. The default

installed location of these licenses is C:\Program Files (x86)\Common

Files\Rockwell\Help\<Product Name>\Release

Notes\OPENSOURCE\index.htm.

Legal Notices

Rockwell Automation Publication 1756-PM013H-EN-P - March 2022 9

Chapter 1

Communicating with an ASCII device

You can exchange ASCII data with a device through the serial port of the

controller. For example, you can use the serial port to:

•Read ASCII characters from a weigh scale module or bar code reader.

•Send and receive messages from an ASCII triggered device, such as a

MessageView terminal.

Firmware revision 3.1 and later of the 1756-EWEB EtherNet/IP Web Server

module supports the controller serial port and a socket interface that lets

Logix 5000 controllers exchange ASCII data using TCP or UDP socket

services.

To connect to the ASCII device, use these steps.

1. On the serial port of the ASCII device, determine which pins send

signals and which pins receive signals.

2. Connect sending pins to corresponding receiving pins and attach

jumpers.

Introduction

Connect the ASCII device

Chapter 1 Communicating with an ASCII device

10 Rockwell Automation Publication 1756-PM013H-EN-P - March 2022

If the communications

Then wire the connectors

Handshake

Do not handshake

3. Attach the cable shield to the connectors.

4. Connect the cable to the controller and the ASCII device.

To configure the serial port, use these steps.

1. On the Online toolbar, click the Controller Properties button.

2. On the Controller Properties dialog box, click the Serial Port tab.

Configure the Serial Port

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