Rockwell Automation 1756 ControlLogix, 1756 GuardLogix, 1769 CompactLogix, 1769 Compact GuardLogix, 1789 SoftLogix User Manual
...
User Manual
DeviceNet Network Configuration
1756 ControlLogix, 1756 GuardLogix, 1769 CompactLogix,
1769 Compact GuardLogix, 1789 SoftLogix, Studio 5000
Logix Emulate
Publication DNET-UM004D-EN-P
Original Instructions
DeviceNet Network Configuration
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.
temperatures.
for Personal Protective Equipment (PPE).
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
ATTENTION: Identifies information about practices or circumstances that can lead to personal injury or death, property damage, or economic loss.
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
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
2 Rockwell Automation Publication DNET-UM004D-EN-P - September 2020
Subject
Reason
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.
Updated the Legal notices. Legal information changed.
New or enhanced features
None in this release.
Rockwell Automation Publication DNET-UM004D-EN-P - September 2020 3
Summary of Changes
DeviceNet Overview
Connect a Computer to the
Connect Devices to the Network
Configure the Network Offline
Table of Contents
Preface
Network Configuration ............................................................................. 11
Studio 5000 environment ......................................................................... 12
Additional Resources ................................................................................. 12
Legal Notices ............................................................................................... 13
Chapter 1
Choose a Single Network or Subnets ....................................................... 15
Single Network ..................................................................................... 15
Advantages to Using a Single Network ........................................ 15
Disadvantages to Using a Single Network ................................... 16
Subnets ................................................................................................. 16
Advantages to Using Subnets ....................................................... 16
Disadvantages to Using Subnets .................................................. 16
Choose a Scanner ....................................................................................... 16
Bridge Across Networks ............................................................................. 17
Choose a Baud Rate for the Network ........................................................ 19
Assign an Address to Each Device ............................................................ 20
Required Software ...................................................................................... 21
DeviceNet Network
Chapter 2
Connection Options ..................................................................................23
Set Up the DeviceNet Driver .................................................................... 24
Obtain the Driver for the Interface Device ....................................... 24
Verify that the Driver Works .............................................................. 24
Chapter 3
Before You Begin....................................................................................... 27
Set the Node Address of a Device ............................................................ 27
Set Node Address via Hardware Mechanism ................................... 28
Set Node Address via Software .......................................................... 29
Set Node Address via DeviceNet Node Commissioning Tool ......... 30
Make Sure Your Devices Are on Your Network ........................................32
Chapter 4
Before You Begin........................................................................................ 33
Create a File for the Network .................................................................... 33
Create Your Network in RSNetWorx for DeviceNet Software ............... 34
Configure Each Device ............................................................................... 35
Specify a Device Node Address ........................................................... 36
Change a Device Node Address .................................................... 37
Rockwell Automation Publication DNET-UM004D-EN-P - September 2020 5
Table of Contents
Configure the Network Online
Automatically Configure a
DeviceNet Network
Configure Device Parameters ............................................................ 38
Configure the Scanner ............................................................................... 39
Build the Scan List............................................................................... 40
Set the Alignment Option ................................................................... 42
SoftLogix 5800 Controller ............................................................. 43
Manually Assign Each Device to a Memory Location ........................ 43
Save the Configuration File ....................................................................... 45
Generate an RSNetWorx for DeviceNet Report ...................................... 45
Go Online to Your Network ....................................................................... 47
Download Configuration to Your Network ............................................. 49
Chapter 5
Before You Begin........................................................................................ 51
Verify Communication Between the Computer and Devices ............... 52
Create a New File for the Network ............................................................ 53
Go Online to Your Network ....................................................................... 54
Configure Each Device ............................................................................... 56
Upload the Configuration of a Device ................................................ 56
Change and Download Device Configuration ................................... 56
Configure the Scanner ............................................................................... 57
Upload the Current Scanner Configuration ..................................... 58
Define the Scanner Properties ............................................................ 59
Build the Scan List............................................................................... 60
Set the Alignment Option ................................................................... 62
SoftLogix 5800 Controller ............................................................. 63
Manually Assign Each Device to a Memory Location ........................ 63
Download the Configuration to the Scanner ..................................... 65
Upload and Save the Configuration File................................................... 65
Generate an RSNetWorx for DeviceNet Report ..................................... 66
6 Rockwell Automation Publication DNET-UM004D-EN-P - September 2020
Chapter 6
How AutoScan Operates .......................................................................... 69
Determine If You Can Use AutoScan ....................................................... 71
How AutoScan Affects Your Network ..................................................... 72
Install the DeviceNet Node Commissioning Tool ................................... 73
Connect Devices ......................................................................................... 73
Install a Scanner or Network Interface Devices ................................ 73
Install Other DeviceNet Devices ......................................................... 74
Set the Node Address and Baud Rate with the DeviceNet Node
Commissioning Tool ............................................................................ 75
Add the Scanner to the RSLogix 5000 Project .......................................... 75
Add the Scanner to the I/O Configuration Folder ............................. 75
Control a Device
Interlock and Share Inputs
Table of Contents
Define the Properties of the Scanner ................................................. 76
Enable AutoScan with RSLogix 5000 Software ....................................... 77
Initiate AutoScan via the User Program .................................................. 78
Implementing AutoScan .................................................................... 78
Configure I/O Allocation Size Via the User Program ................ 80
Configure I/O Allocation Via a DeviceView Configurator......... 80
Initiate AutoScan via the User Program ...................................... 81
Initiate AutoScan via the DeviceView Configurator ................... 81
Additional Considerations Regarding AutoScan ............................. 82
Access Device Data .................................................................................... 83
Put the Scanner in Run Mode .................................................................. 84
Additional Information About AutoScan ................................................ 85
Type of Connection that the Scanner Sets Up .................................. 85
Allocating More Memory for Each Device ........................................ 85
Chapter 7
Before You Begin....................................................................................... 87
RSNetWorx Report for the Network ................................................. 88
Data Map for Each of Your Devices ................................................... 89
Add the Scanner to the Controller’s I/O Configuration ......................... 89
Conserve EtherNet/IP or ControlNet Network Bandwidth ............ 89
Add the Scanner to the I/O Configuration Folder ............................ 90
Configure the Scanner ......................................................................... 91
Determine the Address of DeviceNet Data ............................................. 92
SoftLogix 5800 Controller .................................................................. 94
Determine If a Device Has Failed ............................................................. 95
Place the Scanner in Run Mode................................................................ 96
When to Use an MSG Instruction ............................................................ 96
Determine the Parameter Number to Access .......................................... 97
Determine the Configuration of the Parameter ...................................... 97
Test the Parameter .................................................................................... 98
Enter Message Logic ................................................................................. 99
Define the Source or Destination Data ............................................ 101
Enter and Configure the MSG Instruction ...................................... 102
Set the Communication Path ............................................................ 103
Rockwell Automation Publication DNET-UM004D-EN-P - September 2020 7
Chapter 8
Interlock ................................................................................................... 105
Choose a Master Controller ............................................................... 106
Determine How Much Data to Exchange ........................................ 106
Enable Slave Mode for the Slave Scanner ........................................ 106
Map the Slave Mode Data .................................................................. 107
Table of Contents
Communicate with a PanelView
Standard Terminal
Add the Slave to the Master Scanner’s Scan List .............................108
Map the Data of the Slave .................................................................. 109
Place Both Scanners In Run Mode .................................................... 109
Share Inputs ............................................................................................. 109
Add the Input to the First Scanner ................................................... 109
Add the Input to the Second Scanner ............................................... 109
Map the Input Data in the Second Scanner ..................................... 110
Chapter 9
Choose Data Types .................................................................................... 111
Choose a Communication Method ......................................................... 112
I/O Slave Communication ................................................................. 112
Explicit Server Communication ........................................................ 113
Explicit Client Communication ......................................................... 113
Plan and Configure I/O Slave Tags .......................................................... 113
Use a Word/Bit Format for Each Tag ............................................... 114
For Integers, Skip Every Other Word ............................................... 115
Configure an I/O Slave Tag ............................................................... 115
Set Up the Terminal on Your Network ................................................... 116
Set the Protocol .................................................................................. 116
Set the Node Address and I/O Sizes ..................................................117
Configure the Scanner to Update I/O Slave Tags .................................. 118
Add the Terminal to the Scan List ..................................................... 118
Edit I/O Parameters ........................................................................... 119
Map Input and Output Data ............................................................. 120
Address I/O Slave Tags in the RSLogix 5000 Programming Software
Project ....................................................................................................... 120
SoftLogix 5800 Controller ................................................................. 122
Plan and Configure Explicit Server Tags ................................................ 122
Assign Assembly Instances ................................................................ 123
For Integers, Skip Every Other Word ............................................... 124
Configure an Explicit Server Tag ...................................................... 124
Program the Controller to Get/Set Explicit Server Tags ....................... 125
Create an Array for the Assembly Instance ...................................... 125
Enter and Configure the MSG Instruction ...................................... 126
Set the Communication Path ............................................................ 127
Configure Explicit Client Tags ................................................................ 128
Determine the Parameter Number to Access .................................. 128
Determine the Configuration of the Parameter .............................. 129
Configure an Explicit Client Tag ...................................................... 129
8 Rockwell Automation Publication DNET-UM004D-EN-P - September 2020
Communicate with a
FactoryTalk View Project
Tune the Performance of a
DeviceNet Network
Failed Device
Map the Memory Location with
Advanced Mapping
Table of Contents
Chapter 10
Before You Begin...................................................................................... 132
Create a Topic for the Device .................................................................. 132
Create a Node ........................................................................................... 133
Create a Tag for the Parameter ............................................................... 134
Chapter 11
Factors that Affect Performance ............................................................. 137
I/O Parameters of Each Device ......................................................... 139
Background Poll ................................................................................. 139
Interscan Delay .................................................................................. 140
Change the Configuration of Your Network .......................................... 141
Upload the Current Configuration of the Scanner ......................... 141
Set the Interscan Delay and Poll Ratio ............................................. 142
Set the I/O Parameters of a Device ................................................... 143
Change of State or Cyclic Transfer ............................................. 143
Strobed Transfer .......................................................................... 144
Polled Transfer ............................................................................. 144
Download the Configuration to the Scanner ................................... 145
Save the Configuration File ............................................................... 145
Automate the Replacement of a
Chapter 12
Automatic Device Recovery ..................................................................... 147
Set Up Automatic Device Recovery ........................................................ 148
Choose an Electronic Key Level for a Device .................................... 148
Update Your Network Configuration File ........................................ 149
Define the Electronic Key .................................................................. 149
Enable Auto-Address Recovery for the Scanner .............................. 150
Set the ADR Settings for the Device ................................................. 151
Download the Changes to the Scanner ............................................ 151
Upload and Save the Configuration File .......................................... 152
Appendix A
Give a Value Its Own Memory Location ................................................. 153
Rockwell Automation Publication DNET-UM004D-EN-P - September 2020 9
Task
Optional Conditions
Required Conditions
network offline
network offline
Network Configuration
Preface
This manual describes how you can use DeviceNet modules with your
Logix5000 controller and communicate with various devices on the DeviceNet
network.
You should use this manual if you program applications that use DeviceNet
with one of these Logix5000 controllers:
• 1756 ControlLogix controllers
• 1768 CompactLogix controllers
• 1769 CompactLogix controllers
• 1789 SoftLogix 5800 controllers
• PowerFlex 700S with DriveLogix controllers
You should also understand the following:
• Networking concepts
• RSNetWorx for DeviceNet software
• RSLogix 5000 programming software
• RSLinx Classic communication software
The following chapters describe how to set up a DeviceNet network:
• Chapter 2—Connect a Computer to the DeviceNet Network on page 23
• Chapter 3—Connect Devices to the Network on page 73
• Chapter 4—Configure the Network Offline on page 33
• Chapter 5—Configure the Network Online on page 33
You are not required to complete all tasks in each chapter in the exact order
presented to set up your DeviceNet application. For example, you can
configure your network offline before you connect a computer to the network.
However, there are some requirements related to the order in which you
complete tasks. For example, you must complete the tasks in chapters 2 and 3
before you can configure the network online.
The following table describes optional and required conditions to consider
when determining the order in which you plan to complete tasks in your
DeviceNet application.
Network Configuration Tasks
Connect a computer to the network • Can be completed before or after connecting
devices to the network
Can be completed before or after configuring the
•
Must be completed before configuring the network
online
Connect devices to the network • Can be completed before or after connecting a
Rockwell Automation Publication DNET-UM004D-EN-P - September 2020 11
computer to the network
Can be completed before or after configuring the
•
Must be completed before configuring the network
online
Preface
Task
Optional Conditions
Required Conditions
online
Resource
Description
publication DNET-IN001
ADN, and 1769-SDN DeviceNet modules.
publication DNET-UM072
DeviceNet cable system.
Studio 5000 environment
Additional Resources
Configure the network offline • Can be completed before or after connecting a
computer to the network
• Can be completed before or after connecting
devices to the network
Can be completed before configuring the network
•
Configure the network online Can be completed without creating a network
configuration file offline
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.
None
• Computer must be connected to the network
before configuring the network online
• Devices must be connected to the network before
configuring the network online
12 Rockwell Automation Publication DNET-UM004D-EN-P - September 2020
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.
For more information on the products included in this publication, use the
publications listed in this table.
DeviceNet Modules Installation Instructions,
DeviceNet Media Design Installation Guide,
Logix5000 Controllers Common Procedures
Programming Manual, publication 1756-PM001M
Describes how to install and set up 1756-DNB, 1769-
Describes how to design, install, and troubleshoot a
Links to a collection of programming manuals that
describe how you can use procedures that are
common to all Logix5000 controller projects.
Legal Notices
Preface
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/aboutus/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
Files\Rockwell\Help\FactoryTalk Services Platform\Release
Notes\OPENSOURCE\index.htm
C:\Program Files (x86)\Common
.
Rockwell Automation Publication DNET-UM004D-EN-P - September 2020 13
Topic
Page
Choose a Scanner on page 16
16 on page 16
Bridge Across Networks on page 17
16 on page 17
Choose a Baud Rate for the Network on page 19
19 on page 19
Calculate Scanner Memory Requirements
20
Assign an Address to Each Device on page 20
23 on page 20
Choose a Single Network or
Single Network
Advantages to Using a
Chapter 1
DeviceNet Overview
The Logix5000 family of controllers operates with many DeviceNet
communication modules. This chapter describes each communication module
and the preliminary tasks you must complete before your configure and
program the DeviceNet network.
Choose a Single Network or Subnets 14 on page 15
Subnets
Single Network
DeviceNet communication modules share these features:
• Interface via cabling systems using either round or flat media that
provide both power and communication
• Use network protocols
• Require no network scheduling
• Support messaging, produced/consumed data, and distributed I/O
You can organize the devices on the network in a single network or several,
smaller distributed networks known as subnets.
When you use a single network, you place all your devices on a single
DeviceNet network and connect the controller directly to the network via a
scanner. The following graphic shows a single network.
There are advantages to using a single network for your DeviceNet
application:
• The overall cost to install the network is lower than using subnets.
• You need to manage only a single network.
• The Logix5000 controller is local to the DeviceNet scanner. For
example, with a single network in a ControlLogix application, the 1756L64 controller is in the same ControlLogix chassis as the 1756-DNB
scanner.
Rockwell Automation Publication DNET-UM004D-EN-P - September 2020 15
Chapter 1 DeviceNet Overview
Disadvantages to Using a
Subnets
Advantages to Using
Disadvantages to Using
Choose a Scanner
Single Network
There are disadvantages to using a single network for your DeviceNet
application:
• The network must use shorter distances from one end to another.
• The more devices on the network, the slower the overall performance
of the network.
• Your network may have more power supply requirements than can be
handled by one network
• A single network can contain only up to 64 nodes
A subnet configuration is a main network that is connected to distributed
subnets using a scanner, or linking device. In this option, you must install a
ControlNet network or EtherNet/IP network, also known as a backbone, that
connects to distributed subnets using a linking device.
For example, if you choose an EtherNet/IP network backbone, you must use
1788-EN2DN linking devices to connect the subnets.
The following graphic shows a subnet network.
Subnets
Subnets
There are advantages to using subnets for your DeviceNet application:
• Typically, there are shorter runs on subnets, which allow a faster
communication rate for the DeviceNet network.
• With fewer devices on each subnet, the overall performance of the
network is faster.
• There are simpler power requirements.
There are disadvantages to using subnets for your DeviceNet application:
• The overall cost to install the network is higher than using a single
network.
• You must manage multiple networks.
• The Logix5000 controller is remote from the linking device. For
example, with subnets in a 1768 CompactLogix application, a 1768-L45
controller is remote from the 1788-CN2DN linking device.
The DeviceNet scanner connects a Logix5000 controller to the devices on a
DeviceNet network. The following graphic shows how a scanner exchanges
data between a controller and devices on the DeviceNet network.
16 Rockwell Automation Publication DNET-UM004D-EN-P - September 2020
If you are using
And
Use this scanner
DriveLogix controller
1788-DNBO DeviceNet daughtercard
IMPORTANT
Refer to table Bridging Across Networks on page 17 for more information.
Bridge Across Networks
Chapter 1 DeviceNet Overview
The following table describes how to choose a scanner.
Single network 1768 or 1769 CompactLogix controller CompactLogix 1769-SDN modules
ControlLogix controller ControlLogix 1756-DNB modules
SoftLogix 5800 controller 1784-PCIDS card
Subnets EtherNet/IP main network EtherNet/IP to DeviceNet Linking Device 1788-EN2DN
ControlNet main network ControlNet to DeviceNet Linking Device 1788-CN2DN
Logix5000 controllers can usually communicate with devices on other
networks with no additional configuration or programming. A bridge
connects two networks.
You cannot bridge from a device on a DeviceNet network to a device on a ControlNet
nor EtherNet/IP network. You can only bridge from devices on ControlNet or
EtherNet/IP networks to devices on DeviceNet networks.
The bridge is one of the following:
• A single device with communication ports for two different networks,
such as a 1788-EN2DN linking device
• A separate communication device in the same chassis
For example, the bridge device shown in the following graphic is connected to
both EtherNet/IP and DeviceNet networks. Device 1 on an EtherNet/IP
Rockwell Automation Publication DNET-UM004D-EN-P - September 2020 17
Chapter 1 DeviceNet Overview
A device on this network
EtherNet/IP
ControlNet
DeviceNet
RS-232(1)
ControlNet
yes
yes
yes
yes
EtherNet/IP yes yes yes yes
network can communicate with Device 2 on a DeviceNet network through the
bridge.
The following table describes how communication can bridge the networks.
Bridging Across Networks
Can access a device on this network
DeviceNet no no yes no
RS-232 yes yes(2) yes yes
In this example, a computer configures a drive on a DeviceNet network. The
workstation bridges an EtherNet/IP network to reach the drive.
18 Rockwell Automation Publication DNET-UM004D-EN-P - September 2020
In this example, the RSLinx communication software window shows how the
DeviceNet bridge links to the EtherNet/IP network.
Method
Description
Typically, scanners and network interfaces have a fixed baud rate.
Choose a Baud Rate for the
Chapter 1 DeviceNet Overview
You must choose a baud rate for the DeviceNet network. There are three rates
available for the network:
Network
• 125 kbps—This is the default baud rate for a DeviceNet network. It is
the easiest baud rate to use and is usually sufficient.
• 250 kbps
• 500 kbps
The following table describes the most common methods to set a baud rate.
Autobaud feature At powerup, the device automatically sets its baud rate to the baud rate of the first device it hears on the network. The baud rate
remains set until the device powers up again.
The network requires at least one device with a fixed baud rate so the autobaud devices have something against which to set.
Rockwell Automation Publication DNET-UM004D-EN-P - September 2020 19
Chapter 1 DeviceNet Overview
Method
Description
baud rate.
Baud Rate
Cumulative Drop Line Length
Flat Cable
Thick Cable
Thin Cable
250K bit/s
200m (656 ft)
250m (820 ft)
100m (328 ft)
78m (256 ft)
500K bit/s
75m (246 ft)
100m (328 ft)
100m (328 ft)
39m (128 ft)
If a device
Then
2. Connect the device to the network.
Assign an Address to Each
Switches or push button
on the device
Software Some devices require a programming device to set its address. For example, you can use the computer and the DeviceNet node
Some devices have switches or push buttons that set the baud rate as follows:
• The device reads the switch setting at powerup.
• Typically, the switch lets you select either autobaud or a fixed baud rate, that is 125 Kbps, 250 Kbps, or 500 Kbps
• If you change the switch setting, you must cycle power to the device before the change takes effect.
There are exceptions. For example, the 1756-DNB module has a push button that only lets you set the baud rate if the module is
disconnected from the network or network power is off. Once you change the baud rate, the module automatically resets to the new
commissioning tool to set the baud rate of a device. The node commissioning tool is available in either of the following methods:
• Automatically when you install RSNetWorx for DeviceNet software
• As a separate application on the RSLogix 5000 programming software CD, revision 13.0 or later
The length of the trunkline and type of cable determines which baud rates you
can use.
Maximum Distance
125K bit/s 420m (1378 ft) 500m (1640 ft) 100m (328 ft) 156 m (512 ft)
Device
If you change the baud rate of the network, make sure that all devices change
to the new baud rate. Mixed baud rates produce communication errors.
Complete the following steps to set the baud rate for the network.
1. Connect the network interface to the network and set its baud rate.
2. Connect the scanner to the network and set its baud rate.
3. For each device that has only fixed baud rates (no autobaud), set the
baud rate and connect it to the network.
4. Connect the remaining devices to the network and enable autobaud
for each of them.
has a switch to enable autobaud 1. Set the switch to autobaud.
does not have a switch to enable autobaud 1. Connect the device to the network.
2. Use RSNetWorx for DeviceNet software to enable autobaud.
To communicate on the DeviceNet network, each device requires its own
address. In general, a device can use any address in the range of 0…63.
However, we recommend that you follow the guidelines in the following table.
20 Rockwell Automation Publication DNET-UM004D-EN-P - September 2020
Give this device
This address
Notes
• The auto-address recovery feature also requires address 63 to be open.
Required Software
Scanner 0 If you have multiple scanners, give them the lowest addresses in sequence (0, 1…).
Any device on the network
except the scanner
Computer interface to the
network
No device 63 Always leave address 63 open. Out of the box, most DeviceNet devices are preset for address 63.
1…61 • Give the lower addresses to devices with 15 bytes or more of input or output data.
• Gaps between addresses are OK and have no effect on system performance. If you are uncertain of the
final lay-out of your system, leave gaps between addresses. This gives you some flexibility as you
develop your system.
62 If you connect a computer directly to the DeviceNet network, use address 62 for the computer.
• Many computer interface devices use this address as their default.
• The 1784-U2DN device can connect a computer directly to a DeviceNet network.
• Some devices have no switches or push button to set the address. They require software, such as
RSNetWorx for DeviceNet software to change the address. This means that you must first place it on
the network at its preset address of 63 before you can change the address.
• If another device is already using address 63, there will be an address conflict and you won’t be able to
communicate with the newly connected device.
• Leaving address 63 open makes it possible to configure a new device.
Refer to Chapter 3 on page 29 for more information on how to assign an
address to each device.
Chapter 1 DeviceNet Overview
You must use the correct software with the DeviceNet application.
• To connect your computer to the DeviceNet network, use RSLinx
communication software.
• To program the Logix5000 controller, use Logix Designer application.
• To the configure the DeviceNet network, use RSNetWorx for
DeviceNet software.
Rockwell Automation Publication DNET-UM004D-EN-P - September 2020 21
Topic
Page
Connection Options
Chapter 2
Connect a Computer to the DeviceNet Network
This chapter shows how to connect a computer to the network. After you
physically connect a computer to the network, you must configure a driver in
RSLinx communication software to communicate over the network.
Connection Options on page 23 26 on page 23
Set Up the DeviceNet Driver on page 24 27 on page 24
After you connect a computer to the network and configure a driver in RSLinx
communication software, you can complete these tasks:
• Configure the devices on the network
• Configure network parameters
• Upload, download, monitor, and program projects for Logix5000
controllers
Some networks let you bridge to other networks in your system. This lets you
connect to one network and access devices or controllers on other networks.
To access the DeviceNet network, do one of the following:
• Connect directly to the network via the 1784-U2DN interface device. If
you connect directly to a DeviceNet network, you can access only the
devices on that network. If you use this method, refer to
Set Up the
DeviceNet Driver on page 27 on page 24.
The following graphic shows a computer connected directly to a DeviceNet
network.
Rockwell Automation Publication DNET-UM004D-EN-P - September 2020 23
• Connect to a different network and bridge to the desired DeviceNet
network. This requires no additional programming.
Chapter 2 Connect a Computer to the DeviceNet Network
RSLinx Classic Software Version
Action
U2DN interface device.
Device on page 27 on page 24.
Set Up the DeviceNet Driver
Obtain the Driver for the
Verify that the Driver Works
The following graphic shows a computer connected to a DeviceNet network
through an EtherNet/IP network used with a ControlLogix system.
For more information about installing modules on the DeviceNet network,
refer to the Rockwell Automation Literature Library at:
http://www.rockwellautomation.com/literature/
To find the installation publications specific to your module, search by the
module’s catalog number.
.
Interface Device
The requirements for setting up the DeviceNet driver depend on your version
of RSLinx Classic software.
2.50 or earlier Upgrade to version 2.51 or later to use the 1784-
2.51, 2.52, or 2.53 Proceed to Obtain the Driver for the Interface
2.54 or later The 1784-U2DN interface device driver is already
installed on the computer.
Proceed to Verify that the Driver Works on page 27
on page 24.
Follow these steps to download and install the device driver for the 1784U2DN interface device.
1. Visit http://www.rockwellautomation.com/knowledgebase/
.
2. Open tech note ID 53280 and follow the instructions to install the
driver.
24 Rockwell Automation Publication DNET-UM004D-EN-P - September 2020
Complete the following steps to verify that the driver for the 1784-U2DN
interface device works.
1. Open RSLinx Classic software.
2. Click the Browse button and verify that the 1784-U2DN interface
appears under USB.
Chapter 2 Connect a Computer to the DeviceNet Network
Rockwell Automation Publication DNET-UM004D-EN-P - September 2020 25
Before You Begin
Set the Node Address of a
Chapter 3
Connect Devices to the Network
This chapter describes how to connect a device to the network and set the
device’s address so it can communicate on the DeviceNet network.
Before you use this chapter, make sure that you can see all your devices on the
DeviceNet network. Complete the following steps to see your DeviceNet
network.
1. Start RSLinx communication software.
2. Browse the network.
3. Expand a driver that lets you access the DeviceNet network.
4. Select the DeviceNet network.
5. Verify that you see all the devices that are connected to the DeviceNet
network.
Device
Rockwell Automation Publication DNET-UM004D-EN-P - September 2020 27
You can use the following options to set the node address of DeviceNet
devices. However, not all options apply to every DeviceNet device.
For example, you can use all three options with the 1756-DNB ControlLogix
DeviceNet scanner, but you can use only the second and third methods with
the 1769-SDN Compact I/O DeviceNet scanner.
• Set Node Address via Hardware Mechanism on page 28
Chapter 3 Connect Devices to the Network
Give this address
To this device
conflicting with another device.
Mechanism
Graphic
Description
device for the change to take effect.
IMPORTANT
to set the node address.
Set Node Address via
All DeviceNet devices ship with their node addresses set to 63. To avoid
duplicate node number conditions on the network, you should change the
node address for each device to a unique number as you add it to the network.
For more information about setting the node address of DeviceNet devices,
refer to the Rockwell Automation Literature Library at:
http://www.rockwellautomation.com/literature/
• Set Node Address via Software on page 29
• Set Node Address via DeviceNet Node Commissioning Tool on page 30
0 Scanner
1…61 Devices
62 Computer interface to the network, such as a 1784-U2DN device
63 None
Out of the box, a DeviceNet communication module is preset for address 63.
Leaving address 63 open lets you get a new device on the network without
.
Hardware Mechanism
To find the publications specific to your module, search by the module’s
catalog number.
Many DeviceNet devices have a hardware mechanism that you can use to set
the node address. If a device has a hardware mechanism to set the node
address, use that mechanism.
The following table describes the two most common hardware mechanisms.
Rotary switch
Push-wheel switch
As long as a device’s hardware mechanism sets the node address to 63 or lower, you
cannot change the node address with RSNetWorx for DeviceNet software or the
DeviceNet node commissioning tool.
Make sure each device’s node address set by a hardware mechanism matches the
node address used in your RSNetWorx for DeviceNet software network configuration
file, as described on page 40 on page 36
However, if you set a device’s hardware mechanism to a number higher than 63, you
can use RSNetWorx for DeviceNet software or the DeviceNet node commissioning tool
You turn the dials of rotary switches to specific numbers
that represent the device’s node address.
You usually need a small flathead screwdriver to turn the
switches. A device reads the switches when you power it up.
If you change the address, you should cycle power to that
You set the numbers on the push-wheel switch to specific
numbers that represent the device’s node address.
.
28 Rockwell Automation Publication DNET-UM004D-EN-P - September 2020
IMPORTANT
IMPORTANT
page 37.
Set Node Address via
Chapter 3 Connect Devices to the Network
You must cycle power to the module for node changes set through hardware to take
effect.
You can set a device’s node address in RSNetWorx for DeviceNet software.
Software
Setting a device’s node address is only one task used when configuring a device with
RSNetWorx for DeviceNet software.
For complete information on how to configure all parameters with RSNetWorx for
DeviceNet software, including setting a device’s node address, refer to Chapter 4 on
Complete the following steps to set a device’s node address in your network
configuration file. This example uses an AC drive.
1. Double-click the device.
2. Enter the DeviceNet address for the device.
Rockwell Automation Publication DNET-UM004D-EN-P - September 2020 29
Chapter 3 Connect Devices to the Network
IMPORTANT
Set Node Address via
3. Click OK to close the configuration window.
The node address assigned by RSNetWorx for DeviceNet software only takes effect if
the device does not have a hardware mechanism to set the node address or if the
device has its hardware mechanism set to a number higher than 63.
DeviceNet Node
Commissioning Tool
30 Rockwell Automation Publication DNET-UM004D-EN-P - September 2020
You can use the DeviceNet node commissioning tool available in RSNetWorx
for DeviceNet software to set the node addresses of devices on the DeviceNet
network. Remember the following when you decide to use the DeviceNet
node commissioning tool.
• You can only use this tool with a DeviceNet network that is online.
Loading...