Allen-Bradley Series B User manual

User
Manual
DeviceNet
Adapter Module
(Cat. No. 1794ADN Series B)
AllenBradley

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 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 which 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
in part, without written permission of Allen–Bradley Company, Inc.
is prohibited.
Throughout this manual we make notes to alert you to possible injury to
people or damage to equipment under specific circumstances.
!ATTENTION: Identifies information about practices or
circumstances that can lead to personal injury or death,
property damage, or economic loss.
Attention helps you:
•identify a hazard
•avoid the hazard
•recognize the consequences
Important: Identifies information that is especially important for
successful application and understanding of the product.
Important: We recommend you frequently backup your application
programs on appropriate storage medium to avoid possible
data loss.
DeviceNet, DeviceNetManager, and RediSTATION are trademarks of Allen-Bradley Company, Inc.
PLC, PLC–2, PLC–3, and PLC–5 are registered trademarks of Allen-Bradley Company, Inc.
Windows is a trademark of Microsoft.
Microsoft is a registered trademark of Microsoft
IBM is a registered trademark of International Business Machines, Incorporated.
All other brand and product names are trademarks or registered trademarks of their respective companies.
Important User Information

Publication 17946.5.5 - October 1996
Summary of Changes
This publication contains new and revised information not included
in the last release.
New Information
Additional Flex I/O Modules
The following modules have been added to this publication:
•8 Electronically Fused Output Module, cat. no. 1794-OB8EP
•10 Input/6 Output Module, cat. no. 1794-IB10XOB6
•SCANport Module, cat. no. 1203-FM1
Revised Information
All screens for selection and configuration of the Flex I/O adapter
and modules have been updated. New buttons have been added to the
screens for ease of movement between screens.
The “Set to Defaults” button has been changed to “Set to I/O Only.”
This applies the real time values for I/O (optimal settings) to the
module.
A “Memory” button has been added to the individual configuration
screen for each module. If you change your mind about any settings
you have made while you are on the configuration screen, clicking
on the “Memory” button returns you to the original settings.
The “Save to Flex I/O” no longer both saves and exits you. You must
click on the “Close” button to exit.
Change Bars
The areas in this manual which are different from previous editions
are marked with change bars (as shown to the right of this paragraph)
to indicate the addition of new or revised information.

Summary of Changes -1. . . . . . . . . . . . . . . . . . . . . . . . . . . .
New Information -1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Additional
Flex I/O Modules -1. . . . . . . . . . . . . . . . . . . . . . . . . . .
Revised
Information -1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Change Bars -1
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
About This Manual P-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Purpose P-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Audience P-1
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Vocabulary P-1
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
What This Manual Contains P-1
. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Conventions P-2
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Related
Publications P-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installing Y our DeviceNet Adapter Module 1-1. . . . . . . . . . . . .
Chapter Objectives 1-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Compliance to European Union Directives 1-1
. . . . . . . . . . . . . . . . . .
EMC Directive 1-1
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Low V
oltage Directive 1-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
The
FLEX I/O System 1-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
DeviceNet Adapter Components 1-2
. . . . . . . . . . . . . . . . . . . . . . . . .
Diagnostic Indicators 1-3
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power Requirements 1-3
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Mounting the DeviceNet Adapter 1-3
. . . . . . . . . . . . . . . . . . . . . . . . .
Mounting
on the DIN Rail 1-3. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Mounting on a Wall or Panel 1-4
. . . . . . . . . . . . . . . . . . . . . . . . . .
Setting the Network Address Switch 1-6
. . . . . . . . . . . . . . . . . . . . . . .
Wiring 1-7
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Chapter Summary 1-8
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
How Communication T akes Place and I/O Image
Table Mapping 2-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Chapter Objectives 2-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Communication Over the Flex I/O Backplane 2-1
. . . . . . . . . . . . . . . .
I/O Structure 2-2
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Adapter Input Status Word 2-3
. . . . . . . . . . . . . . . . . . . . . . . . . . .
Communication Choices 2-4
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Table of Contents

Table of Contentsii
Mapping Data into the Image T able 2-4. . . . . . . . . . . . . . . . . . . . . . .
16point Discrete Input Module (1794IB16) Image Table Mapping 2-5
Memory Map of 16Point Discrete Input Module
Image T able - 1794IB16 2-5. . . . . . . . . . . . . . . . . . . . . . . .
Input Delay Times for the 1794IB16 Input Module 2-5
. . . . . . . . .
16point Discrete Output Module (1794OB16) Image
Table Mapping 2-6
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Memory Map of 16Point Discrete Output Module Image
Table - 1794OB16 2-6. . . . . . . . . . . . . . . . . . . . . . . . . . . .
16point
Discrete Input/Output Module Image T able Mapping -
1794IB10XOB6 2-6
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Memory
Map of 16Point Discrete Input/Output Module
Image T able - 1794IB10XOB6 2-6. . . . . . . . . . . . . . . . . . .
8point Discrete Electronically Fused Output Module
(1794OB8EP) Image Table Mapping 2-7. . . . . . . . . . . . . . . . .
Memory Map of 8Point Discrete Electronically Fused
Output Module Image T able - 1794OB8EP 2-7. . . . . . . . . .
8point Discrete Sensor Input Module (1794IB8S) Image
Table Mapping 2-8
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Memory Map of 8Point Discrete Sensor Input Module
Image T able - 1794IB8S 2-8. . . . . . . . . . . . . . . . . . . . . . .
Input Delay Times for the 1794IB8S Input Module 2-8
. . . . . . . .
8point Discrete Input Module (1794IA8) Image Table Mapping 2-9
.
Memory Map of 8point Discrete Input Module Image
Table - 1794IA8 2-9
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Input Delay Times for the 1794IA8 Input Module 2-9
. . . . . . . . .
8point Discrete Output Module (1794OA8) Image Table Mapping 2-10
Memory Map of 8point Discrete Output Module Image
Table - 1794OA8 2-10
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8point Discrete Relay Output Module (1794OW8) Image
Table Mapping 2-10
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Memory Map of 8Point Discrete Relay Output Image Table -
1794OW8 2-10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8 Input Analog Module (Cat. No. 1794IE8) Image Table Mapping 2-11
Memory Map of Analog Input Module Image Table - 1794IE8 2-11
Range Selection Bits for the 1794IE8 Analog Input Module 2-12. .
Word/Bit Descriptions for the 1794IE8 Analog Input
Module Write 2-12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4 Output Analog Module (1794OE4) Image Table Mapping 2-13
. . . .
Memory
Map of Analog Output Module Image
Table - 1794OE4 2-14. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Range Selection Bits for the 1794OE4 Analog Output
Module (Write Word 6) 2-14
. . . . . . . . . . . . . . . . . . . . . . . . .
Word/Bit Descriptions for the 1794OE4 Analog Output Module 2-14
Analog Combo Module (1794IE4XOE2) Image Table Mapping 2-16.
Memory Map of Analog Combo Module Image
Table - 1794IE4XOE2 2-16. . . . . . . . . . . . . . . . . . . . . . . . .

Table of Contents iii
Range Selection Bits for the 1794IE4XOE2 Analog
Combo Module 2-17
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Word/Bit Descriptions for the 1794IE4XOE2 Analog
Combo Module 2-17
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
RTD Input Analog Module (1794IR8) Image Table Mapping 2-19
. . .
RTD Analog Input Module (1794IR8) Read 2-19
. . . . . . . . . . . . .
RTD Analog Input Module (1794IR8) Write 2-20
. . . . . . . . . . . . . . .
Word/Bit Descriptions for the 1794IR8 RTD Analog
Input Module 2-20. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Thermocouple Input Module (1794IT8) Image Table Mapping 2-23
. .
Thermocouple Input Module (1794IT8) Read 2-23
. . . . . . . . . . . .
Thermocouple Input Module (1794IT8) Write 2-24
. . . . . . . . . . . .
Word/Bit Descriptions for the 1794IT8 Thermocouple
Input Module 2-24. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SCANport Module (1203FM) Image Table Mapping 2-27
. . . . . . . . .
Memory Map of SCANport Module Image Table - 1203FM 2-27
. .
Defaults 2-28
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Configuring Y our DeviceNet Adapter Offline 3-1. . . . . . . . . . .
Chapter Objectives 3-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
About DeviceNet Manager 3-1
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Adding Your Flex I/O DeviceNet Adapter to the Network 3-1
. . . . . . . .
Configuring Your Flex I/O Adapter and System Offline 3-3
. . . . . . . . . .
Configuring Your Adapter'
s Flex I/O System 3-5. . . . . . . . . . . . . . .
Configure
Slot 0 3-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Configure
Slot 1 3-7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Configure
Slot 2 3-8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Configure
Slot 3 3-9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Configure
Slot 4 3-10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Configure
Slot 5 3-11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Configure
Slot 6 3-12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Configure
Slot 7 3-13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Configuration for 1794OW8 Relay output module 3-14
. . . . . . . . . . .
Configuration for the 1794OE4 Analog Output module 3-15
. . . . . . .
Configuration for the 1794IT8 Thermocouple Input module 3-16
. . . .
Configuration for the 1794IB10XOB6 10 Input/6 Output Module 3-17
.
Configuration for the 1794OB8EP Electronically Fused
Output Module 3-18. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Configuration for the 1203FM1 SCANport Module 3-19
. . . . . . . . . .
Configuring the Adapter 3-20
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Viewing the Mapping Summaries 3-21
. . . . . . . . . . . . . . . . . . . . . . .

Table of Contentsiv
Configuring Y our DeviceNet Adapter Online 4-1. . . . . . . . . . .
Chapter Objectives 4-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
About DeviceNet Manager 4-1
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Configuring Your Flex I/O Adapter and System Online 4-1
. . . . . . . . . .
The Configuration Screen 4-4
. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Load from Device 4-4
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Load
from a File 4-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Entering Configuration Information into the Configuration Screen 4-7
Configuring Your Adapter' s Flex I/O System 4-8. . . . . . . . . . . . . . .
Configure
Slot 0 4-9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Configure Slot 1 and 2 4-10
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Configure
Slot 3 4-10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Configure
Slot 4 4-11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Configure Slots 5 and 6 4-11
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Configure
Slot 7 4-12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Applying
Configuration Information to the Adapter 4-13. . . . . . . . . . .
Viewing the Mapping Summaries 4-14
. . . . . . . . . . . . . . . . . . . . . . .
Using Mini Who and Network Who 4-16
. . . . . . . . . . . . . . . . . . . . . . . .
Using Mini Who 4-16
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Using Network Who 4-17
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Troubleshooting 5-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Chapter Objectives 5-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Troubleshooting With the Indicators 5-1
. . . . . . . . . . . . . . . . . . . . . . .
Specifications A-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Support Services 5-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Technical Support 5-1
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Engineering and Field Services 5-1
. . . . . . . . . . . . . . . . . . . . . . . .
Technical Training 5-1
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Repair and Exchange Services 5-1
. . . . . . . . . . . . . . . . . . . . . . . .

Preface
17946.5.5 - October 1996
About This Manual
Use this manual to install and configure your Flex I/O DeviceNetTM
Adapter, cat. no. 1794-ADN Series B.
We assume that you have previously used an Allen-Bradley
programmable controller, that you are familiar with its features, and
that you are familiar with the terminology we use. If not, read the
user manual for your processor before reading this manual.
In addition, you must be familiar with:
•DeviceNet Manager Software, cat. no. 1787-MGR
•Microsoft WindowsTM
•Flex I/O system components
In this manual, we refer to:
•the individual DeviceNet adapter module as the “adapter.”
•the programmable controller as the “controller” or the
“processor.”
The contents of this manual are as follows:
Chapter Title What's Covered
1Overview of Flex I/O and Your
DeviceNet Adapter
Describes features, capabilities, and hardware
components.
2How Communication Takes Place
and I/O Mapping
Describes communication over the I/O backplane
between the modules and the adapter, and how data is
mapped into the image table.
3Configuring Your DeviceNet Adapter
Offline
Describes how to configure the adapter when in the
offline mode.
4Configuring Your DeviceNet Adapter
Online
Describes how to configure the adapter when in the
online mode.
5 Troubleshooting Explains how to use the indicators for troubleshooting.
Appendix
A Specifications Adapter specifications
Purpose
Audience
Vocabulary
What This Manual
Contains

SP–2 About This Manual
17946.5.5 - October 1996
We use these conventions in this manual:
In this manual, we show: Like this:
that there is more information about a topic
in another chapter in this manual
that there is more information about the
topic in another manual More
For additional information on planning and installing your
DeviceNet system, and Flex I/O modules, see the following
publications:
Publication Publication Number
DeviceNet Manager Software User Manual 17876.5.3
Scanner Configuration Manual (cat. no. 1771SDN) 17716.5.118
Industrial Automation Wiring and Grounding Guidelines 17704.1
Flex I/O Product Data 17942.1
16 Source Output Module, Cat. No. 1794OB16 17945.3
16 Sink Input Module, Cat. No. 1794IB16 17945.4
4 Output Analog Module, Cat. No. 1794OE4 17945.5
8 Input Analog Module, Cat. No. 1794IE8 17945.6
8 Sensor Input Module, Cat. No. 1794IB8S 17945.7
8 Input Module, Cat. No. 1794IA8 17945.9
8 Output Module, Cat. No. 1794OA8 17945.10
4 in/2 out Analog Combo Module, Cat. No. 1794IE4XOE2 17945.15
8 Relay Output Module, Cat. No. 1794OW8 17945.19
Thermocouple/mV Input Module, Cat. No. 1794IT8 17945.21
10 Input/6 Output Module, Cat. No. 1794IB10XOB6 17945.24
RTD 8 Input Analog Module, Cat. No. 1794IR8 17945.22
SCANport Module, Cat. No. 1203FM1 12035.8
Conventions
Related Publications

Chapter 1
Publication 17946.5.5 - October 1996
Installing Your DeviceNet
Adapter Module
This chapter describes the FLEX I/O system, the DeviceNet Adapter
and the procedures for installing your DeviceNet adapter module.
These include:
•European Union Directives
•the FLEX I/O system
•power requirements
•mounting the remote I/O adapter
•setting the module switches
•connecting the wiring
If this product has the CE mark it is approved for installation within
the European Union and EEA regions. It has been designed and
tested to meet the following directives.
EMC Directive
This product is tested to meet Council Directive 89/336/EEC
Electromagnetic Compatibility (EMC) and the following standards,
in whole or in part, documented in a technical construction file:
•EN 50081-2EMC – Generic Emission Standard, Part 2 –
Industrial Environment
•EN 50082-2EMC – Generic Immunity Standard, Part 2 –
Industrial Environment
This product is intended for use in an industrial environment.
Low Voltage Directive
This product is tested to meet Council Directive 73/23/EEC
Low Voltage, by applying the safety requirements of EN 61131–2
Programmable Controllers, Part 2 – Equipment Requirements and
Tests.
For specific information required by EN 61131-2, see the appropriate
sections in this publication, as well as the following Allen-Bradley
publications:
•Industrial Automation Wiring and Grounding Guidelines For
Noise Immunity, publication 1770-4.1
•Guidelines for Handling Lithium Batteries, publication AG-5.4
•Automation Systems Catalog, publication B111
Chapter Objectives
Compliance to
European Union Directives