Allen-Bradley ControlNet ControlLogix 1756 Manuale utente

User Manual

ControlNet Network Configuration

1756 ControlLogix, 1756 GuardLogix, 1769 CompactLogix, 1769 Compact GuardLogix, 1789

SoftLogix, Studio 5000 Logix Emulate

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.

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

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.

BURNHAZARD:

Labelsmay beonorinsidetheequipment,for example,a driveormotor,toalertpeoplethat

surfaces may reach dangerous temperatures.

IMPORTANT

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

Allen-Bradley, ArmorPOINT, CompactLogix, ControlLogix, Data Highway Plus, DriveLogix, FlexLogix, FLEX Ex, FLEX I/O, Logix 5000, PanelView, PanelView Plus, POINT I/O, PowerFlex 700S, Rockwell Software,

Rockwell Automation, RSLinx, RSLinx Classic, RSLogix, RSLogix 5000, RSNetWorx, RSNetWorx for ControlNet, RSView, SoftLogix, and TechConnect are trademarks of Rockwell Automation, Inc.

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

SummaryofChanges

This document contains new and updated information. Changes are designated

by change bars in the outside margins.

Updated Information

This document contains these changes.

Topic Chapter

Updated supported controller models.

Cover

Rockwell Automation Publication CNET-UM001E-EN-P - June 2016 3

Summary of Changes

Notes:

Rockwell AutomationPublication CNET-UM001E-EN-P - June 2016

Table of Contents

Preface

Additional Resources...........................................................................................7

Chapter 1

ControlNet Overview

Use ControlNet Communication Modules in a Control System...............9

Bridge Across Networks................................................................................... 11

Exchange Information on a ControlNet Network ..................................... 14

Network Update Time (NUT)............................................................... 16

Requested Packet Interval (RPI) ............................................................. 17

Actual Packet Interval (API).................................................................... 17

Schedule the Network............................................................................... 18

Understand the Network Keeper ........................................................... 19

Default Parameters..................................................................................... 21

ControlNet Network Capacity and Topology ............................................ 21

Topology ..................................................................................................... 21

Number of Nodes ...................................................................................... 24

Lengths......................................................................................................... 24

ConnectaComputertothe

ControlNet Network

Chapter 2

Configure the ControlNet Communication Driver

in RSLinx Classic Software.............................................................................. 26

Chapter 3

Configurea ControlNet Module

Use RSLogix 5000 Software............................................................................ 29

Configure the I/O Configuration Tree in Your Project..................... 29

Add and Configure a Local ControlNet Module................................. 30

Add and Configure a Remote ControlNet Module ............................ 33

Download the Project to the Logix5000 Controller............................ 36

Electronic Keying....................................................................................... 37

Use RSNetWorx for ControlNet Software.................................................. 44

Schedule a ControlNet Network for the First Time ........................... 44

Schedule the Network Offline................................................................. 45

Schedule the Network Online ................................................................. 49

Reschedule a ControlNet Network

that has Previously been Scheduled......................................................... 53

Table of Contents

Chapter 4

ControlI/O

Set Up the Hardware.........................................................................................56

Requested Packet Interval (RPI).....................................................................56

Communication Format ..................................................................................57

Direct or Rack-optimized Connections..................................................58

Ownership ...................................................................................................61

Add a Remote Adapter .....................................................................................63

Add Distributed I/O.........................................................................................63

Distributed I/O Communication Formats............................................65

Access Distributed I/O.....................................................................................65

Validate Connections........................................................................................68

Produce and Consume Tags

(interlock controllers)

Chapter 5

Terminology .......................................................................................................71

Set Up the Hardware.........................................................................................72

Determine Connections for Produced and Consumed Tags.....................73

Organize Tags for Produced or Consumed Data .........................................75

Adjust for Bandwidth Limitations..................................................................76

Produce a Tag .....................................................................................................77

Consume a Tag ..................................................................................................79

Chapter 6

Messaging

Set Up the Hardware.........................................................................................84

Guidelines for MSG Instructions ...................................................................85

Determine Connections for Messages............................................................86

Guidelines for Caching Message Connections......................................86

Enter Message Logic..........................................................................................86

Add the ControlNet Modules and Remote Devices

to the Local Controller’s I/O Configuration.........................................87

Enter a Message...........................................................................................88

Configure a Message Instruction....................................................................88

Stagger the Messages..........................................................................................90

Communicate with PanelView

Terminals

Chapter 7

Set Up the Hardware.........................................................................................92

Determine Connections to PanelView Terminals.......................................93

Add a PanelView Terminal..............................................................................94

Organize Controller Data for a PanelView Terminal .................................96

Index ...............................................................................................................................................................................................97

Rockwell Automation PublicationCNET-UM001E-EN-P - June 2016

Preface

This manual describes how you can use ControlNet communication modules

with your Logix5000 controller.

Use this manual if you program applications that use a ControlNet network with

one of these Logix5000 controllers:

•

•CompactLogixcontroller

•ControlLogixcontroller

•PowerFlex 700S with DriveLogix controller

SoftLogix5800controller

Also be familiar with the following:

•

•Networkingconcepts

•

RSLogix 5000 software

RSLinx Classic software

RSNetWorx for

ControlNet software

Additional Resources

These documents contain additional information concerning related products

from Rockwell Automation.

Resource Description

ControlNet Modules Installation Instructions,

publication CNET-IN005

Describes how to install 1756-CN2, 1756-CN2R,

1756-CN2RXT, 1756-CNB, 1756-CNBR, 1768-CNB,

and 1768-CNBR ControlNet modules.

Industrial Automation Wiring and Grounding

Guidelines, publication 1770-4.1

Provides general guidelines for installing a Rockwell

Automation industrial system.

Product Certifications website,

http://www.ab.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

Allen-Bradley distributor or Rockwell Automation sales representative.

Rockwell Automation Publication CNET-UM001E-EN-P - June 2016 7

Preface

Notes:

Rockwell AutomationPublicationCNET-

UM001E-EN-P - June 2016

Chapter

ControlNet Overview

The ControlNet network provides high-speed transmission of time-critical I/O

and interlocking data and messaging data. This data transfer capability enhances

I/O performance and peer-to-peer communication in any system or application.

The ControlNet network is highly deterministic and repeatable and remains

unaffected as devices are connected or disconnected from it. This ensures

dependable, synchronized, and coordinated real-time performance.

The ControlNet network is most often used in these ways:

•

As the default network for the ControlLogix platform

•

As a backbone to multiple distributed DeviceNet networks

As a peer interlocking network

This chapter describes how you can use ControlNet modules in a network

control system.

Topic Page

Use ControlNet Communication Modules in a Control System

Bridge Across Networks

Exchange Information on a ControlNet Network

ControlNet Network Capacity and Topology

Use ControlNet

Communication Modules in

a Control System

You can fit various ControlNet modules into your control system.

Figure 1 on page 10 shows the following:

•

•The controllers produce and consume tags among themselves.

The controllers initiate MSG instructions that send/receive data or

•configure devices.

•The computer uploads and downloads projects to the controllers.

The computer configures devices on the ControlNet network and

configures the network itself.

Rockwell Automation Publication CNET-UM001E-EN-P - June 2016 9

Chapter 1

ControlNet Overview

Figure1 -ControlNetModulesand the ControlSystemOverview

Item Description

Personal computer running SoftLogix5800 controller with 1784-PCICS card

1756-CNB module (as an adapter) with 1756 I/O modules

PowerFlex 700S drive

1794-ACN15 adapter with 1794 I/O modules

1734-ACNR adapter with 1734 I/O modules

PanelView terminal

CompactLogix 1769-L35CR controller with local 1769 I/O modules

ControlLogix controller with 1756-CN2, 1756-CN2R, 1756-CNB, or 1756-CNBR module

as the scanner

IMPORTANT

For an enhanced redundancy system, you must use a 1756-CNB,

1756-CNBR, 1756-CN2 series B, or 1756-CN2R series B communication

module. The 1756-CN2 or 1756-CN2R series A module does not support

enhancedredundancy. Formoreinformation,refertothe ControlLogix

Enhanced Redundancy System User Manual, publication 1756-UM535.

Rockwell AutomationPublicationCNET-

UM001E-EN-P - June 2016

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