Rockwell Automation Allen-Bradley 1756 ControlLogix Owner's manual

Programming Manual
Original Instructions
Logix 5000 Controllers
Produced and Consumed
Tags
1756 ControlLogix, 1756 GuardLogix, 1769 CompactLogix,
1769 Compact GuardLogix, 1789 SoftLogix, 5069
CompactLogix, 5069 Compact GuardLogix, Studio 5000
Logix Emulate

Logix 5000 Controllers Produced and Consumed Tags
2 Rockwell Automation Publication 1756-PM011K-EN-P - September 2020
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 forsuccessful application and understanding of the product.
Labels may also be on or inside the equipment to provide specific precautions.
SHOCK HAZARD: Labelsmay 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).

Rockwell Automation Publication 1756-PM011K-EN-P - September 2020 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 branding.
Throughout
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
Legal Notices on page 7 Updated Legal Notices
Produced/consumed tags on page 9 Changed title from Introduction to Produce and
Consumed tags.
Considerations for produced and consumed tags
on page 10
Added new topic.
Organize tags for produced or consumed data
on page 14
Changed topic title.
Set up produced and consumed axes on page 16
New feature
Create a produced tag on page 20 Added prerequisite to create user-defined data
type. Updated step 2 to add new tag. Updates
steps to included text only.
Create a consumed tag on page 22 Added prerequisite to create user-defined data
type. Updated step 2 to add new tag. Updates
steps to included text only.
Consumed Tag Connection dialog box - Connection
tab on page 25
Added tip under the third bullet
Consumed Tag Connection dialog box - Status tab
on page 26
Added new topic.
Consumed Tag Connection dialog box - Safety tab
on page 27
Added new topic.
Set Advanced Options dialog box parameters
on page 27
Added tips to the steps
Set an RPI Range for Produced Tags on page 29 Added new topic.
Produce and Consume ControlNet Safety Tags
on page 33
Added new topic
Edit Connection Information on page 34
Added new topic

Summary of Changes
4 Rockwell Automation Publication 1756-PM011K-EN-P - September 2020
Topic Name
Reason
Advanced Connection Reaction Time Limit
Configuration Dialog Box Overview on page 38
Added new topic
Produce and consume array types on page 47
Added new topic
Work with large arrays on page 47
Added new topic

Rockwell Automation Publication 1756-PM011K-EN-P - September 2020 5
Table of Contents
Additional resources................................................................................... 7
Legal Notices ............................................................................................... 7
Chapter 1
Produced/consumed tags........................................................................... 9
Considerations for produced and consumed tags..................................10
Controllers and networks that support produced/consumed tags..10
Two controllers in same chassis.......................................................... 11
Two controllers in separate chassis using SynchLink....................... 11
Connection requirements of a produced or consumed tag.............. 11
Considerations when migrating projects that contain multicast
produce tags................................................................................................13
Organize tags for produced or consumed data .......................................14
Bandwidth limitations adjustments...................................................15
Set up produced and consumed axes........................................................16
Produced and consumed axis example.....................................................17
Produced and consumed axis configuration example............................18
Produce and consume program example................................................20
Create a produced tag...............................................................................20
Configure connection properties for produced tags.........................21
Configure status properties for produced tags ................................ 22
Create a consumed tag.............................................................................. 22
Additional steps for a PLC-5C controller........................................... 24
Consumed Tag Connection dialog box - Connection tab ...................... 25
Consumed Tag Connection dialog box - Status tab ............................... 26
Consumed Tag Connection dialog box - Safety tab................................ 27
Set Advanced Options dialog box parameters ........................................ 27
Set an RPI Range for Produced Tags ....................................................... 29
Unicast connection option ..................................................................31
RPI limitations and negotiated default..............................................31
Produce and Consume ControlNet Safety Tags ......................................33
Edit Connection Information ...................................................................34
Set up the consuming controller...............................................................35
Verify consumed tag acceptance...............................................................37
Advanced Connection Reaction Time Limit Configuration Dialog Box
Overview .................................................................................................... 38
Produced and consumed RPI scenarios ...................................................39
Scenario 1..............................................................................................39
Scenario 2 ............................................................................................40
Scenario 3..............................................................................................41
Scenario 4..............................................................................................43
Summary of Changes
Preface
Produce and consume a tag

Table of Contents
6 Rockwell Automation Publication 1756-PM011K-EN-P - September 2020
1769-L2x and 1769-L3x RPI limits...............................................................44
RPI I/O faults ..............................................................................................45
Chapter 2
Produce and consume array types............................................................47
Work with large arrays..............................................................................47
Produce a large array................................................................................. 48
Produce a Large Array
Index

Rockwell Automation Publication 1756-PM011K-EN-P - September 2020 7
Preface
This manual details how, with a Logix 5000™ controller, to produce and
consume standard tags and produce a large array. For information on
produced and consumed safety tags, refer to the documentation specific to
the controller.
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.
These documents contain additional information concerning related
Rockwell Automation products.
Resource
Description
Replacement Guidelines: Logix 5000 Controllers
Reference Manual, publication 1756-RM100
Provides guidelines for migrating projects from
ControlLogix 5560 and 5570 controllers to
ControlLogix 5580 controllers, and from
CompactLogix 5370 controllers to CompactLogix
5380 controllers.
ControlLogix 5580 and GuardLogix 5580 Controllers
User Manual, publication 1756-UM543
Provides information about designing a system,
operating a ControlLogix or GuardLogix-based 5580
controllers system, and developing applications.
CompactLogix 5380 and Compact GuardLogix 5380
Controllers User Manual, publication 5069-UM001
Explains how to use the CompactLogix and Compact
GuardLogix 5380 Controllers.
GuardLogix 5570 Controllers User Manual,
publication 1756-UM022
Describes the GuardLogix-specific procedures to
configure, operate, and troubleshoot the controller.
Compact GuardLogix 5370 Controllers User Manual,
publication 1769-UM022
Describes the necessary tasks to install, configure,
program, and operate a Compact GuardLogix 5370
controller.
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.
View or download publications
at http://www.rockwellautomation.com/literature. To order paper copies of
technical documentation, contact a 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.
Additional resources
Legal Notices

Preface
8 Rockwell Automation Publication 1756-PM011K-EN-P - September 2020
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\FactoryTalk Services Platform\Release
Notes\OPENSOURCE\index.htm.

Rockwell Automation Publication 1756-PM011K-EN-P - September 2020 9
Chapter 1
Produce and consume a tag
A Logix 5000 controller produces (broadcast) and consumes (receive) system-
shared tags.
Number
Description
Controller_1
Produced tag
Controller_2
Consumed tag
Controller_3
Consumed tag
Controller_4
Consumed tag
Term
Definition
Produced tag A tag that a controller makes available for use by other controllers. Multiple controllers can simultaneously
consume (receive) the data. A produced tag sends its data to one or more consumed tags (consumers)
without using logic.
Produced/consumed tags

Chapter 1 Produce and consume a tag
10 Rockwell Automation Publication 1756-PM011K-EN-P - September 2020
Term
Definition
Consumed tag A tag that receives the data of a produced tag. The data type of the consumed tag must match the data type
(including any array dimensions) of the produced tag. The RPI of the consumed tag determines the period at
which the data updates.
Keep the following considerations in mind for produced and consumed tags.
•The tags must be controller-scoped tags.
•The data types must match, including user-defined data type layout.
•The size of the produced and consumed standard tag is limited to less
than or equal to 500 bytes.
•A produced/consumed tag can only be created when the controller is
offline.
•Connection status information can be included with the produced tag
in a standard controller. In order to do this, create a user defined type
whose first member is a CONNECTION_STATUS type. Then, the
remaining members in the user-defined data type contain the data to
be produced.
For produced and consumed safety tags, these requirements are mandatory:
•The size of the produced and consumed safety tags are limited to 128
bytes.
•Connection status information must be included with produced and
consumed safety tags. Create a user-defined data type whose first
member is a CONNECTION_STATUS type. The remaining members in
the user-defined data type contain the data to be produced.
•The Class field must be set to Safety.
•Safety tags can only be modified when the safety application is not in a
safety secured state.
•Compact GuardLogix 5380 and GuardLogix 5580 Safety controllers can
only produce safety tags as unicast. These controllers can consume
safety tags as either unicast or multicast.
See also
Organize tags for produced or consumed data on page 14
Create a produced tag on page 20
Create a consumed tag on page 22
For two controllers to share produced or consumed tags, both controllers
must be in the same backplane or attached to the same control network, such
as ControlNet or EtherNet/IP network. Although produced and consumed
tags can be bridged over two networks, Rockwell Automation® does not
support this configuration. Check the documentation specific to your
controller to determine which network connections it supports.
Considerations for
produced and
consumed tags
Controllers and networks
that support
produced/consumed tags