Allen-Bradley ControlNet 1747-ACN15 User manual

ControlNet™
Adapter Module
(Catalog Numbers 1747-ACN15,
1747-ACNR15)
User Manual

Important User Information
Because of the variety of uses for the products described in this publication,
those responsible for the application and use of this control equipment must
satisfy themselves that all necessary steps have been taken to assure that each
application and use meets all performance and safety requirements, including
any applicable laws, regulations, codes and standards.
The illustrations, charts, sample programs and layout examples shown in this
guide are intended solely for purposes of example. Since there are many
variables and requirements associated with any particular installation,
Allen-Bradley does not assume responsibility or liability (to include intellectual
property liability) for actual use based upon the examples shown in this
publication.
Allen-Bradley publication SGI-1.1, Safety Guidelines for the Application,
Installation and Maintenance of Solid-State Control (available from your local
Allen-Bradley office), describes some important differences between solid-state
equipment and electromechanical devices that should be taken into
consideration when applying products such as those described in this
publication.
Reproduction of the contents of this copyrighted publication, in whole or part,
without written permission of Rockwell Automation, is prohibited.
Throughout this manual we use notes to make you aware of safety
considerations:
Attention statements help you to:
•identify a hazard
•avoid a hazard
•recognize the consequences
ControlNet and SLC 500 are trademarks of Rockwell Automation.
PLC-5 is a registered trademark of Rockwell Automation.
ATTENTION
!
!!
!
Identifies information about practices or circumstances that
can lead to personal injury or death, property damage or
economic loss
IMPORTANT Identifies information that is critical for successful
application and understanding of the product.

iPublication1747-UM003A-EN-P
Table of Contents
Preface Who Should Use this Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P-1
Purpose of this Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P-1
Related Documentation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P-1
Common Techniques Used in this Manual. . . . . . . . . . . . . . . . . . . P-1
Rockwell Automation Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . P-2
Local Product Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P-2
Technical Product Assistance. . . . . . . . . . . . . . . . . . . . . . . . . . . P-2
Your Questions or Comments on this Manual . . . . . . . . . . . . . P-2
Chapter 1
Introducing the ControlNet
Adapter Module
Chapter Objectives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
Module Description and Features . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
Hardware Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
Diagnostic Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
Network Access Port (NAP) . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
ControlNet Connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
Network Address Switch Assemblies . . . . . . . . . . . . . . . . . . . . . 1-3
Chapter 2
Installing Your ControlNet Adapter
Module
Chapter Objectives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
Compliance to European Union Directives. . . . . . . . . . . . . . . . . . . 2-1
EMC Directive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
Low Voltage Directive. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
Determining Power Requirements . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
Setting the Network Address Switches. . . . . . . . . . . . . . . . . . . . . . . 2-2
Installing the Adapter Module in the Chassis . . . . . . . . . . . . . . . . . 2-3
Connecting Your Adapter to the ControlNet Network . . . . . . . 2-4
Connecting Programming Terminals to the Network via the NAP . 2-6
Powerup Sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-7
Chapter 3
Planning to Use Your ControlNet
Adapter Module
Chapter Objectives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
Compatible 1746 and 1747 I/O Modules . . . . . . . . . . . . . . . . . . . . 3-1
Overview of Adapter Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2
Software Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2
Rack and Module Connections . . . . . . . . . . . . . . . . . . . . . . . . . 3-3
Optimizing SLC ControlNet Adapter Rack Connections . . . . . 3-4
Module Keying . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5
Output Operation During Fault and Idle Modes . . . . . . . . . . . 3-6
Understanding ControlNet I/O . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-6
Scheduled Data-Transfer Connections on a
ControlNet Network. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-6

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Table of Contents ii
Chapter 4
Application Examples
Example 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2
Hardware Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2
Configuring The ControlNet Network with
RSNetWorx™ for ControlNet . . . . . . . . . . . . . . . . . . . . . . . . . 4-3
Create a Ladder Logic Program . . . . . . . . . . . . . . . . . . . . . . . . 4-10
Example 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-11
Hardware Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-11
Configuring The ControlNet Network with
RSNetWorx™ for ControlNet . . . . . . . . . . . . . . . . . . . . . . . . 4-12
Create a Ladder Program. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-20
Example 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-21
Hardware Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-21
Configuring The ControlNet Network with
RSNetWorx™ for ControlNet . . . . . . . . . . . . . . . . . . . . . . . . 4-22
Create a Ladder Logic Program . . . . . . . . . . . . . . . . . . . . . . . . 4-30
Example 4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-31
Hardware Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-31
Configuring The ControlNet Network with
RSNetWorx™ for ControlNet . . . . . . . . . . . . . . . . . . . . . . . . 4-32
Create Ladder Logic and Basic Module Programs . . . . . . . . . . 4-43
Example 5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-46
Hardware Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-46
Configuring The ControlNet Network with
RSNetWorx for ControlNet . . . . . . . . . . . . . . . . . . . . . . . . . . 4-47
Create a Ladder Logic Program . . . . . . . . . . . . . . . . . . . . . . . . 4-57
Chapter 5
Troubleshooting
Chapter Objectives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1
Troubleshooting With the Status Indicators and Status Display . . . 5-1
Health Indicators and Display Mnemonics . . . . . . . . . . . . . . . . 5-2
ControlNet Status Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3
Appendix A
Specifications
Appendix B
Understanding Your SLC 500/1746
Control System
Selecting Your SLC 500/1746 Control Power Supply . . . . . . . . . . . B-1
Power Supply Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . B-2
SLC 500 System Installation Recommendations . . . . . . . . . . . . . . . B-6
Typical Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-6
Selecting an Enclosure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-6
Spacing Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-7
Preventing Excessive Heat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-8
Wiring Layout. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-8

Publication1747-UM003A-EN-P
Table of Contents iii
Grounding Guidelines. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-9
Master Control Relay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-11
Emergency-Stop Switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-13
Common Power Source . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-15
Loss of Power Source. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-16
Input States on Power Down . . . . . . . . . . . . . . . . . . . . . . . . . B-16
Other Types of Line Conditions . . . . . . . . . . . . . . . . . . . . . . . B-16
Power Conditioning Considerations . . . . . . . . . . . . . . . . . . . . B-16
Special Considerations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-18
Output Contact Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . B-20
Mounting Your Control System . . . . . . . . . . . . . . . . . . . . . . . . . . B-21
Mounting Modular Hardware Style Units. . . . . . . . . . . . . . . . B-21
Installing Your I/O Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-25
Features of an SLC 500 I/O Module. . . . . . . . . . . . . . . . . . . . B-25
Definition of Sinking and Sourcing. . . . . . . . . . . . . . . . . . . . . B-26
Inserting I/O Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-28
Removing I/O Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-30
Wiring the I/O Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-31
Using Removable Terminal Blocks . . . . . . . . . . . . . . . . . . . . . B-32
Calculating Heat Dissipation for Your Control System. . . . . . . . . B-34
Module Heat Dissipation: Calculated Watts
vs. Maximum Watts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-34
Calculating the Power Supply Loading . . . . . . . . . . . . . . . . . . B-35
Determining the Power Supply Dissipation. . . . . . . . . . . . . . . B-38
Glossary
Index

Publication 1747-UM003A-EN-P
Table of Contents iv

1Publication1747-UM003A-EN-P
Preface
Read this preface to familiarize yourself with the rest of the manual. It provides
information concerning:
•who should use this manual
•the purpose of this manual
•related documentation
•conventions used in this manual
•Allen-Bradley support
Who Should Use this
Manual
Use this manual if you are responsible for designing, installing, programming, or
troubleshooting control systems that use the ControlNet Adapter Module.
You should have a basic understanding of electrical circuitry and familiarity with
relay logic. If you do not, obtain the proper training before using this product.
Purpose of this Manual
This manual is a reference guide for the ControlNet Adapter Module. It describes
the procedures you use to install, program and troubleshoot your module. This
manual also includes several application examples.
Related Documentation
The following documents contain additional information concerning
Allen-Bradley products. To obtain a copy, contact your local Allen-Bradley office or
distributor.
Common Techniques
Used in this Manual
The following conventions are used throughout this manual:
•Bulleted lists such as this one provide information, not procedural steps.
•Numbered lists provide sequential steps or hierarchical information.
•Italic type is used for emphasis.
Publication Publication
Number
ControlNet PLC-5 Programmable Controllers User Manual Phase 1.5 1785-6.5.22
ControlNet Cable System Component List AG-2.2
ControlNet Cable System Planning and Installation Manual 1786-6.2.1
ControlNet Coax Tap Installation Instructions 1786-2.3
ControlNet Network Access Cable Installation Instructions 1786-2.6
ControlNet Repeater Installation Instructions 1786-2.7
Industrial Automation Wiring and Grounding Guidelines 1770-4.1
SLC 500™ Modular Hardware Style User Manual 1747-6.2
ControlNet Scanner Module Reference Manual 1747-6.23

Publication 1747-UM003A-EN-P
Preface 2
Rockwell Automation
Support
Rockwell Automation offers support services worldwide, with over 75 Sales/
Support Offices, 512 authorized Distributors and 260 authorized Systems
Integrators located throughout the United States alone, plus Rockwell Automation
representatives in every major country in the world.
Local Product Support
Contact your local Rockwell Automation representative for:
•sales and order support
•product technical training
•warranty support
•support service agreements
Technical Product Assistance
If you need to contact Rockwell Automation for technical assistance, please review
the Troubleshooting appendix in your controller’s User Manual first. Then call your
local Rockwell Automation representative.
Your Questions or Comments on this Manual
If you find a problem with this manual, or you have any suggestions for how this
manual could be made more useful to you, please contact us at the address below:
Rockwell Automation
Control and Information Group
Technical Communication, Dept. A602V
P.O. Box 2086
Milwaukee, WI 53201-2086
or visit our internet page at:
http://www.rockwellautomation.com

1Publication1747-UM003A-EN-P
Chapter 1
Introducing the ControlNet Adapter Module
Chapter Objectives
This chapter describes the ControlNet adapter modules (cat. no. 1747-ACN15
and 1747-ACNR15):
•features
•hardware components, including
–diagnostic indicators
–network access port (NAP)
–ControlNet connectors
–network address switch assemblies
Module Description and
Features
The 1747-ACN15 and 1747-ACNR15 adapters control remote 1746 I/O on
the ControlNet network. The ControlNet network is a communication
architecture that allows the exchange of messages between ControlNet
products compliant with the CI specification.
The 1747-ACN15 and 1747-ACNR15 adapters features include:
•high-speed data transfer
•diagnostic messages
•local communication network access through the network access port
(NAP)
•redundant media (1747-ACNR15 only)
Hardware Components
The adapter module consists of the following major components:
•ControlNet status indicators
•status display
•network access port (NAP)
•ControlNet connectors (one on 1747-ACN15; two on 1747-ACNR15)
•module net address switch assemblies (on top of module)

Publication 1747-UM003A-EN-P
1-2 Introducing the ControlNet Adapter Module
Figure 1.1 ControlNet Adapter Module
Diagnostic Indicators
Health indicators are located on the front panel of the adapter module,
See Figure 1.1. They show both normal operation and error conditions in your
remote I/O system.
In addition, an alphanumeric display (net address/status) provides status code
indications when an error occurs during initialization or operation.
A complete description of the diagnostic indicators and status display and how
to use them for troubleshooting is explained in Chapter 5.
Network Access Port (NAP)
The network access port provides a bidirectional electrical interface for
programming, maintenance, and I/O monitoring devices in both redundant
and non-redundant connections. See Figure 1.1 connecting programming
terminals to the network using the NAP above.
ADDRESS/STATUS ADDRESS/STATUS
B
AA
AA
B
OK OK
Module Network Address Switches
(accessible through top of module)
Status Display and
Net Address
Health Indicators
ControlNet Status Indicators
Diagnostic Indicators
Network Access Port (NAP)
1747-ACNR15
ControlNet Media Port
ControlNet Redundant Media Port (1747-ACNR15 only)
1747-ACN15