Rockwell Automation 1794-OB16D User Manual

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FLEX I/O Diagnostic Modules

Catalog Numbers 1794-IB16D, 1794-OB16D User Manual

Important User Information

WARNING

IMPORTANT

ATTENTION

SHOCK HAZARD

BURN HAZARD

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

http://literature.rockwellautomation.com

) 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.

available from your local Rockwell Automation sales office or online at

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.

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

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.

Labels may be on or inside the equipment, such as a drive or motor, to alert people that dangerous voltage may be present.

Labels may be on or inside the equipment, such as a drive or motor, to alert people that surfaces may reach dangerous temperatures.

Allen-Bradley, Rockwell Automation, FLEX I/O, RSLogix, RSLinx, RSLogix 5000 and TechConnect are trademarks of Rockwell Automation, Inc.

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

1794 FLEX I/O Diagnostic Digital Modules Overview

About the FLEX I/O Diagnostic Input Module

Table of Contents

Preface

Purpose of This Manual. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Important Warnings and Cautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

North American Hazardous Location Approval . . . . . . . . . . . . . . . 7

Related Products and Documentation . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Chapter 1

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

General Description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Network Compatibility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

1794-IB16D Diagnostic Input Module Compatibility . . . . . . . . . . 14

1794-OB16D Diagnostic Output Module Compatibility . . . . . . . 15

Install Your Digital Input or Output Module. . . . . . . . . . . . . . . . . . . . 16

Chapter 2

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

About the 1794-IB16D Diagnostic Input Module . . . . . . . . . . . . . . . . 19

Diagnostic Fault Detection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Sensor Power Open and Short Circuit Detection . . . . . . . . . . . . . 22

User Power Supply Reverse Voltage Detection . . . . . . . . . . . . . . . 23

User Power Supply Loss Detection . . . . . . . . . . . . . . . . . . . . . . . . 23

Indicator Status Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Module Limitations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

Input Voltage Derating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

Sensor-Power Derating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

Unused Sensor Power Ports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Open Contact Mechanical Switches and Relays. . . . . . . . . . . . . . . 25

Sensor Power Internal Voltage Drop . . . . . . . . . . . . . . . . . . . . . . . 25

Configure Your Diagnostic Input Module . . . . . . . . . . . . . . . . . . . . . . 26

Input Filter Times . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

Chapter 3

About the FLEX I/O Diagnostic Output Module

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Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

About the 1794-OB16D Diagnostic Output Module . . . . . . . . . . . . . 27

Wiring Output Loads. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

Diagnostic Fault Detection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

Module Protection Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

Output Fault & Idle States With Network Communication Failure .

Indicator Status Information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

Module Limitations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

Unused Output Channels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

Configure Your Output Diagnostic Module. . . . . . . . . . . . . . . . . . . . . 32

Table of Contents iv

Configuring Modules for Communication on a Remote I/O Network

Configure FLEX I/O Digital Modules on a DeviceNet Network

Chapter 4

Chapter Objectives. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

Add a 1756-DHRIO Module. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

Add a 1794 Remote Adapter Module . . . . . . . . . . . . . . . . . . . . . . . . . . 37

Configure Digital Modules. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

Create a Block Transfer (Read or Write) Message Instruction . . . . . . 42

Ladder Logic Examples . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

Chapter 5

How to Use This Chapter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

Add the Scanner to the I/O Configuration of the Controller Using

RSLogix 5000 Software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

If You Need to Conserve EtherNet/IP or ControlNet Network

Bandwidth . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

Add the Scanner to the I/O Configuration Folder . . . . . . . . . . . . 50

Define the Properties of the Scanner . . . . . . . . . . . . . . . . . . . . . . . 51

Determine the Address of DeviceNet Data . . . . . . . . . . . . . . . . . . . . . 52

Tally Memory Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54

If You Configure the Adapter Offline . . . . . . . . . . . . . . . . . . . . . . . . . 55

Set the Address of the Adapter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56

Configure Your Adapter and Digital Modules on a ControlNet Network

Configure your Digital Module on an EtherNet/IP Network

Chapter 6

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57

Set Up the Hardware . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58

Setting a Requested Packet Interval (RPI) . . . . . . . . . . . . . . . . . . . . . . 58

Select a Communication Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59

Direct or rack-optimized connection . . . . . . . . . . . . . . . . . . . . . . . 61

Ownership . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64

Add Local and Remote ControlNet Modules. . . . . . . . . . . . . . . . . . . . 65

Add Distributed I/O . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66

Download the Program to the Controller. . . . . . . . . . . . . . . . . . . . . . . 68

Configure the 1794-ACN15 Adapter . . . . . . . . . . . . . . . . . . . . . . . . . . 69

Schedule I/O Module Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . 70

Access Module Data via the 1794-ACN15 Adapter. . . . . . . . . . . . . . . 75

Slot Status Bits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77

Change Configuration Data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77

Chapter 7

How to Use This Chapter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81

Set Up the Hardware . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82

Select a Requested Packet Interval (RPI) . . . . . . . . . . . . . . . . . . . . . . . 82

Select a Communication Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83

Choose Direct or Rack-optimized Connection . . . . . . . . . . . . . . . 84

Ownership . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87

Select a Remote Adapter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87

Interpret the Indicators

Table of Contents v

Add Distributed I/O . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88

Add a Module. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89

Download the Program to the Controller. . . . . . . . . . . . . . . . . . . . . . . 89

Access Distributed I/O . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91

General Information About IP Addresses . . . . . . . . . . . . . . . . . . . . . . 93

Determining Required Network Parameters . . . . . . . . . . . . . . . . . 93

Assigning Network Parameters via the BOOTP/DHCP Utility. . . . . 94

Using RSLinx software to set the IP address . . . . . . . . . . . . . . . . . 98

Using RSLogix 5000 software to set the IP address . . . . . . . . . . . 99

Using DHCP software to set the IP address . . . . . . . . . . . . . . . . 100

Duplicate IP Address Detection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100

Duplicate detection scenarios . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101

IP Address Swapping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102

Appendix A

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103

About the Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103

1794-IB16D Diagnostic Functional Details . . . . . . . . . . . . . . . . . . . . 104

Diagnostic Capabilities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104

Diagnostic Functions for the 1794-IB16D. . . . . . . . . . . . . . . . . . 105

1794-OB16D Diagnostic Functional Details . . . . . . . . . . . . . . . . . . . 107

Diagnostic Functions for the 1794-OB16D. . . . . . . . . . . . . . . . . 108

Simplified Schematics of FLEX I/O Digital Modules

Appendix B

Find Your Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 109

1794-IA8 120V AC 8 Input Module. . . . . . . . . . . . . . . . . . . . . . . 110

1794-IA8I 120V AC 8 Input Module . . . . . . . . . . . . . . . . . . . . . . 110

1794-IA16 120V AC 16 Input Module. . . . . . . . . . . . . . . . . . . . . 111

1794-OA8 120V AC 8 Output Module . . . . . . . . . . . . . . . . . . . . 111

1794-OA8I 120V AC 8 Output Module . . . . . . . . . . . . . . . . . . . 112

1794-OA16 120V AC 16 Output Module. . . . . . . . . . . . . . . . . . 112

1794-IM 8 220V AC 8 Input Module . . . . . . . . . . . . . . . . . . . . . . 113

1794-OM8 220V AC 8 Output Module . . . . . . . . . . . . . . . . . . . . 113

1794-IB8 24V DC 8 Input Module. . . . . . . . . . . . . . . . . . . . . . . . 114

1794-IB16 24V DC 16 Input Module. . . . . . . . . . . . . . . . . . . . . . 114

1794-IB16D 24V DC 16 Diagnostic Input Module. . . . . . . . . . . 115

1794-IB32 24V DC 32 Input Module. . . . . . . . . . . . . . . . . . . . . . 116

1794-IB10XOB6 24V DC 8 10 Input/6 2A Output Module . . . 117

1794-IB16XOB16P 24V DC 16 Input/16 Output Module . . . . 118

1794-IV16 24V DC 16 Source Input Module . . . . . . . . . . . . . . . 119

1794-OB8 24V DC 8 Output Module . . . . . . . . . . . . . . . . . . . . . 119

1794-OB8EP 24V DC Electronically Protected 8 Output Module .

120

1794-OB16 24V DC 16 Output Module . . . . . . . . . . . . . . . . . . . 120

1794-OB16D 24V DC 16 Diagnostic Output Module . . . . . . . . 121

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Table of Contents vi

Index

1794-OB16P 24V DC 16 Output Module . . . . . . . . . . . . . . . . . . 121

1794-OB32P 24V DC 32 Output Module . . . . . . . . . . . . . . . . . . 122

1794-OV16 24V DC 16 Sink Output Module . . . . . . . . . . . . . . . 123

1794-OV16P 24V DC 16 Sink Output Module. . . . . . . . . . . . . . 123

1794-IC 48V DC 16 Input Module. . . . . . . . . . . . . . . . . . . . . . . . 124

1794-OC 48V DC 16 Output Module . . . . . . . . . . . . . . . . . . . . . 124

1794-OW8 Relay Output Module. . . . . . . . . . . . . . . . . . . . . . . . . 124

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Preface

ATTENTION

Purpose of This Manual

Important Warnings and Cautions

This manual provides information on installation, setting, and reading your diagnostics on the 1794-IB16D and the 1794-OB16D Diagnostic modules.

For information on See Chapter

1794 Diagnostic Modules 1 Specific Diagnostic Module 2 or 3 Using Diagnostic Modules in a Remote I/O System 4 Using Diagnostic Modules in a DeviceNet System 5 Using Diagnostic Modules in a ControlNet System 6 Using Diagnostic Modules in an EtherNet /IP System 7 Using the Indicators for Troubleshooting Appendix A Simplified Schematics for all 1794 Digital Modules Appendix B

Obey the following warnings and cautions when installing or using these modules.

Environment and Enclosure

This equipment is intended for use in a Pollution Degree 2 industrial environment, in overvoltage Category II applications (as defined in IEC publication 60664-1), at altitudes up to 2000 meters without derating.

This equipment is considered Group 1, Class A industrial equipment according to IEC/CISPR Publication 11. Without appropriate precautions, there may be potential difficulties ensuring electromagnetic compatibility in other environments due to conducted as well as radiated disturbance.

This equipment is supplied as open-type equipment. It must be mounted within an enclosure that is suitably designed for those specific environmental conditions that will be present and appropriately designed to prevent personal injury resulting from accessibility to live parts. The interior of the enclosure must be accessible only by the use of a tool. Subsequent sections of this publication may contain additional information regarding specific enclosure type ratings that are required to comply with certain product safety certifications.

See NEMA Standards publication 250 and IEC publication 60529, as applicable, for explanations of the degrees of protection provided by different types of enclosure. Also, see the appropriate sections in this publication, as well as Industrial Automation Wiring and Grounding Guidelines, Allen-Bradley publication 1770-4.1, for additional installation requirements pertaining to this equipment.

5 Publication 1794-UM065B-EN-E - July 2006

6 Preface

WARNING

ATTENTION

When you insert or remove the module while backplane power is on, an electrical arc can occur. This could cause an explosion in hazardous location installations. Be sure that power is removed or the area is nonhazardous before proceeding.

FLEX I/O is grounded through the DIN rail to chassis ground. Use zinc plated yellow-chromate steel DIN rail to assure proper grounding. The use of other DIN rail materials (such as aluminum or plastic) that can corrode, oxidize, or are poor conductors, can result in improper or intermittent grounding.

Prevent Electrostatic Discharge

This equipment is sensitive to electrostatic discharge, which can cause internal damage and affect normal operation. Follow these guidelines when you handle this equipment:

• Touch a grounded object to discharge potential static.

• Wear an approved grounding wriststrap.

• Do not touch connectors or pins on component boards.

• Do not touch circuit components inside the equipment.

• If available, use a static-safe workstation.

During mounting of all devices, be sure that all debris (such as metal chips or wire strands) is kept from falling into the module. Debris that falls into the module could cause damage on power up.

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Preface 7

WARNING

AVERTISSEMENT

North American Hazardous Location Approval

The 1794-IB16D and 1794-OB16D diagnostic modules are North American Hazardous Location approved.

The following information applies when operating this equipment in hazardous locations:

Products marked “CL I, DIV 2, GP A, B, C, D” are suitable for use in Class I Division 2 Groups A, B, C, D, Hazardous Locations and nonhazardous locations only. Each product is supplied with markings on the rating nameplate indicating the hazardous location temperature code. When combining products within a system, the most adverse temperature code (lowest “T” number) may be used to help determine the overall temperature code of the system. Combinations of equipment in your system are subject to investigation by the local Authority Having Jurisdiction at the time of installation.

EXPLOSION HAZARD

•Do not disconnect equipment unless power has been removed or the area is known to be nonhazardous.

•Do not disconnect connections to this equipment unless power has been removed or the area is known to be nonhazardous. Secure any external connections that mate to this equipment by using screws, sliding latches, threaded connectors, or other means provided with this product.

•Substitution of components may impair suitability for Class I, Division 2.

•If this product contains batteries, they must only be changed in an area known to be nonhazardous.

Informations sur l’utilisation de cet équipement en environnements dangereux :

Les produits marqués "CL I, DIV 2, GP A, B, C, D" ne conviennent qu’à une utilisation en environnements de Classe I Division 2 Groupes A, B, C, D dangereux et non dangereux. Chaque produit est livré avec des marquages sur sa plaque d’identification qui indiquent le code de température pour les environnements dangereux. Lorsque plusieurs produits sont combinés dans un système, le code de température le plus défavorable (code de température le plus faible) peut être utilisé pour déterminer le code de température global du système. Les combinaisons d’équipements dans le système sont sujettes à inspection par les autorités locales qualifiées au moment de l’installation.

RISQUE D’EXPLOSION

•Couper le courant ou s’assurer que l’environnement est classé non dangereux avant de débrancher l'équipement.

•Couper le courant ou s'assurer que l’environnement est classé non dangereux avant de débrancher les connecteurs. Fixer tous les connecteurs externes reliés à cet équipement à l'aide de vis, loquets coulissants, connecteurs filetés ou autres moyens fournis avec ce produit.

•La substitution de composants peut rendre cet équipement inadapté à une utilisation en environnement de Classe I, Division 2.

•S’assurer que l’environnement est classé non dangereux avant de changer les piles.

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8 Preface

Introduction

General Description

In this chapter, you will learn about the diagnostic input module, cat. no. 1794-IB16D, and the diagnostic output module, cat. no. 1794-OB16D.

Topic See Page

General Description 13 Install Your Digital Input or Output Module 16

This chapter contains an overview of the FLEX I/O diagnostic digital modules, the 1794-IB16D input module and 1794-OB16D output module. You can use the FLEX I/O diagnostic modules to help diagnose problems with input and output field devices, I/O wiring and the user power supply. Additionally, these modules can reduce installation start-up time and help minimize time to find and fix failures.

This chapter explains how to use the FLEX I/O diagnostic modules to help detect the following types of faults:

• Open input or output field devices

• Open input or output wiring

• Shorted output field devices

• Shorted input or output wiring

• Reversed polarity of user supply wiring

• Open user supply wiring or failed user supply (using one diagnostic input channel)

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14 1794 FLEX I/O Diagnostic Digital Modules Overview

Network Compatibility

You can use the diagnostic modules with ControlNet, DeviceNet, EtherNet/IP, or remote I/O networks.

Network 1794-IB16D 1794-OB16D

Remote I/O Compatible with 1794-ASB

DeviceNet No limitations or constraints. ControlNet Direct connection only. Direct or rack connections. EtherNet/IP Direct connection only. Direct or rack connections.

Usage Limitations

series E (or higher) and 1794-ASB2 series D (or higher) remote I/O adapters.

Compatible with 1794-ASB series D (or higher) and 1794-ASB2 series C (or higher) remote I/O adapters.

1794-IB16D Diagnostic Input Module Compatibility

The 1794-IB16D diagnostic input module interfaces to sensing devices and detects whether they are on or off. The diagnostic input module converts dc signals from user devices to the appropriate logic level for use in the FLEX I/O system. Typical input devices include these types of switches.

• Proximity switches

• Limit switches

• Photoelectric switches

• Selector switches

•Float switches

• Pushbutton switches

When designing a system using a FLEX I/O diagnostic input module, you must consider:

• the voltage necessary for your application.

• current leakage through the input devices.

• the amount of current consumed by the input devices.

• whether the application requires sinking or sourcing devices.

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1794 FLEX I/O Diagnostic Digital Modules Overview 15

Capabilities of the 1794-IB16D include:

• 61131-2 Type 3 compatible sinking inputs.

• interface with PNP sourcing sensors.

• 10-31.2V dc operating range.

• provides up to 50 mA to power an attached sensor.

• detects for an open wire condition down to 50 μA.

You need a dummy resistor to mask the channel diagnostic function for each unused sensor port. Used sensor ports must have a 50 μA minimum current draw with the input field device in both the on- and off-state.

1794-OB16D Diagnostic Output Module Compatibility

You can use FLEX I/O diagnostic output modules to drive a variety of output devices. Typical output devices include the following.

•Relays

• Solenoids

• Contactors

• Indicators

• Small motor starters

When you design a system using FLEX I/O diagnostic output modules, you must consider:

• The output must supply the necessary surge and continuous current for the output device being used.

• When sizing output loads, check the documentation supplied with the output device for the surge and continuous current needed to operate the device.

Capabilities of the 1794-OB16D diagnostic output module include:

• sourcing style outputs for loads connected to common.

• 10-31.2V dc operating range.

• provides continuous current of 0.5 A maximum (8 A per module),

2.0 mA minimum per output.

• capable of 2 A surge for 50 ms, repeatable every 2 s.

• protection from short circuit and overload.

You need a dummy resistor to mask the channel diagnostic function for each unused output channel.

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16 1794 FLEX I/O Diagnostic Digital Modules Overview

Install Your Digital Input or Output Module

To install a digital diagnostic module, follow these steps:

✓ Installation Step ❑ 1. Mount the terminal base unit

See installation instructions 1794-IN096

❑ 2. Install the module in the terminal base unit

See installation instructions 1794-IN096

❑ 3. Connect the wiring to the terminal base unit

See installation instructions 1794-IN096

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1794 FLEX I/O Diagnostic Digital Modules Overview 17

17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33

0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15

35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51

Inputs Channels 0-15

Sensor Power Terminals for Channels 0-15

+V1 COM1 +V1 COM1 +V1 COM1 +V1 COM1 +V2 COM2 +V2 COM2 +V2 COM2 +V2 COM2 NC

NC NC

Sensor Common and User Power Common:

Terminals C-36, C-38, C-40, C-42, C-44, C-46, C-48 and C-50.

User power (+) Voltage: Terminals C-43, C-45, C-47 and C-49.

0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15

COM1 and COM2 are connected together in the module.

+V1 Terminals C-35, C-37, C-39, and C-41 are not used

1794-TB32 and 1794-TB32S Terminal Base Wiring for the 1794-IB16D

Wiring for 1794-IB16D (use with 1794-TB32 or 1794-TB32S Terminal Base Units)

Input Input

Term ina l

Sensor Power Term in al

Common

IN 00 A-0 B-17 -V common IN 01 A-1 B-18 IN 02 A-2 B-19 IN 03 A-3 B-20

connected to terminals 36, 38, 40, 42, 44, 46, 48, and 50

IN 04 A-4 B-21

Supply

+V2 connected to terminals 43, 45, 47, and 49 (+V1 terminals 35, 37, 39, and 41 are not used).

IN 05 A-5 B-22 IN 06 A-6 B-23 IN 07 A-7 B-24 IN 08 A-8 B-25 IN 09 A-9 B-26 IN 10 A-10 B-27 IN 11 A-11 B-28 IN 12 A-12 B-29 IN 13 A-13 B-30 IN 14 A-14 B-31 IN 15 A-15 B-32 +V2 dc

power COM dc

Return

(1)

3-wire devices only. 2-wire devices use input and sensor power terminals; 3-wire

Power terminals 43, 45, 47, and 49 (power terminals are internally connected together in the module)

Common terminals 36, 38, 40, 42, 44, 46, 48, and 50 (common terminals COM 1 and COM 2 are internally connected together in the module)

devices use input, sensor power and common terminals.

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18 1794 FLEX I/O Diagnostic Digital Modules Overview

1794-TB2, -TB3, and -TB3S Terminal Base Wiring for the 1794-OB16D

0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15

Outputs

17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33

-V

Common

Commons

35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51

-V

Common

Voltage In +V

Terminals 35 through 50 not available on 1794-TB2

Voltage Out +V

Voltage

-V (Supply Common) = Terminals B-16 through B-33. +V (Supply +Voltage In) = Terminals C-34 through C-51.

(Use B-33 and C-51 for daisy-chaining to next terminal base unit.)

(1794-TB3 shown)

Wiring Connections for the 1794-OB16D (use with 1794-TB2, 1794-TB3 or 1794-TB3S Terminal Base Units)

Outputs Output Terminal Common Terminal

Output 00 A-0 B-17 Output 01 A-1 B-18 Output 02 A-2 B-19 Output 03 A-3 B-20 Output 04 A-4 B-21 Output 05 A-5 B-22 Output 06 A-6 B-23 Output 07 A-7 B-24 Output 08 A-8 B-25 Output 09 A-9 B-26 Output 10 A-10 B-27 Output 11 A-11 B-28 Output 12 A-12 B-29 Output 13 A-13 B-30 Output 14 A-14 B-31 Output 15 A-15 B-32 +V dc C-34 and C-51 (1794-TB2) (Power Terminals are

internally connected in the terminal base unit. C-34…C-51 (1794-TB3, 1794-TB3S) (Power terminals are internally connected in the terminal base unit.

Common B-16…B-33 (Common terminals are internally

connected in the terminal base unit.

About the FLEX I/O Diagnostic Input Module

Introduction

About the 1794-IB16D Diagnostic Input Module

In this chapter, you will learn about the diagnostic input module, cat. no. 1794-IB16D.

For Information About See Page

About the 1794-IB16D Diagnostic Input Module 19 Diagnostic Fault Detection 21 Indicator Status Information 2 Module Limitations 24 Configure Your Diagnostic Input Module 26

The 1794-IB16D diagnostic input module provides 16 points of 24V dc sinking inputs with open-wire, short-circuit, and user supply reverse polarity diagnostic features. Each input signal has an associated sensor power connection. The module monitors current and voltage at each input channel sensor power terminal.

The module detects:

• an open fault if the sensor-power current drops.

• a short fault if the sensor-power voltage goes low.

• a reverse-polarity fault if reverse voltage is applied to the user terminals.

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20 About the FLEX I/O Diagnostic Input Module

17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33

0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15

35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51

COM1NC

Sensor Common and User Power Common:

Input Channels 0-15

Sensor Power Terminals for Channels 0-15

+V1 COM1 +V1 COM1 +V1 COM1

+V1

+V2 COM2 +V2 COM2+V2 COM2 +V2 COM2 NC

Terminals C-36, C-38, C-40, C-42, C-44, C-46, C-48 and C-50.

User power (+) Voltage: Terminals C-43, C-45, C-47 and C-49

+V1 Terminals C-35, C-37, C-39 and C-41 are not used

COM1 and COM2 are connected together in the module.

0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15

Wiring Input Sensors

You must use a 1794-TB32 or 1794-TB32S terminal base unit with the 1794-IB16D diagnostic input module. See installation instructions ldkg df;l 1794-IN096

for complete information.

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Two-wire input devices connect to the input and sensor power terminals; 3-wire devices use input, sensor power and common terminals. You can wire 2-wire and 3-wire sensors to the FLEX I/O 1794-TB32 or 1794-TB32S terminal base units.

Unused sensor-power ports or open-contact input devices must use a dummy resistor to mask the diagnostic function. If these external resistors are not used, the module’s fault indicator will light, along with the module’s error bits, thus rendering fault detection of the remaining channels useless. The recommended value of this dummy resistor is 20 kΩ (+ larger). Connect the resistor between sensor power and input signal or

10%), 1/8 Watt (or

between sensor power and common.

About the FLEX I/O Diagnostic Input Module 21

User Power

Reverse Voltage Monitor

PTC

Shorted Input Monitor

Open Wire Monitor

Input Circuit Indicator

Input

Sensor Power

Reverse

Short

Open

Input

Flexbus Interface

V+

Fault Indicator

Diagnostic Fault Detection

The module monitors current and voltage at each input channel sensor power terminal, and monitors the user supply for reverse user supply voltage. The figure below shows the location of these fault monitors in the 1794-IB16D diagnostic input module.

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22 About the FLEX I/O Diagnostic Input Module

Sensor Power Open and Short Circuit Detection

The sensor-power open-wire current monitor detects a fault condition if the sensor-power current drops below 50 μA. Sensor-power shorts are protected by the positive temperature coefficient (PTC) resistor in series with each sensor power output (16 total). For overcurrents or shorts, the PTC resistor heats up, the resistance increases and the sensor power output opens, similar to a fuse opening. This shorted condition is monitored by the sensor power voltage monitor. It detects a short if the sensor power voltage disappears. When the short is removed, the PTC resistor cools down and the previously shorted sensor-power port, sensor power is automatically restored and normal operation continues.

The module’s embedded monitors detect open and short conditions.

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When a fault is detected:

• the corresponding channel’s red indicator lights.

• the module’s red fault indicator lights.

• the module’s open, short or reverse error bit is set.

• the module error bit is set.

The input circuit is a conventional sinking style with an input voltage dropping resistor. The yellow input indicator is in series with the input signal (field-side indication). FLEX I/O system-side logic voltages are isolated from the user power supply and input channels by optocouplers. This provides protection against field side voltages and transients.

About the FLEX I/O Diagnostic Input Module 23

(1794-IB16D shown)

User Power Supply Reverse Voltage Detection

If the external user power supply is miswired (incorrect polarity), the module is protected and reports a reverse user voltage fault. The reverse voltage condition must be at least -10V to detect a fault. The module’s Fault indicator turns red and the reverse fault bit is set. The module error bit is also set. When the correct user power supply polarity is applied, the module Fault indicator is off and the reverse fault bit is not set.

User Power Supply Loss Detection

The module does not check for presence of the external user power supply. Detection can be accomplished by wiring an input channel to the user supply. Any 24V dc input can be used. You can wire a 1794-IB16D diagnostic input module or 1794-IB16 input module to monitor the user supply as shown below:

Indicator Status Information

The 1794-IB16D diagnostic input module has indicators that let you check the module health and operational status. The following status can be checked with the indicators.

• Channel I/O Status - This indicator displays the ON/OFF state of the input channel, as well as channel wiring fault conditions:

– Off indicates the input channel is off with no faults.

– Yellow indicates the input channel is on with no faults.

– Red indicates either a channel sensor power open or short condition.

• Module Fault Status- This indictor turns red for any individual input channel open, short or module reverse power conditions. With no fault, the module fault status indicator turns off.

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24 About the FLEX I/O Diagnostic Input Module

Ambient Temperature

(0°C)

Input

Voltage

(V)

Sensor Power

Current

(mA)

Ambient Temperature (° C)

Module Limitations

Input Voltage Derating

You must derate the input voltage applied to each input channel, based on operating ambient temperature, to keep module power dissipation within an acceptable level.

31.2

26.4

25 20 15 10

5 0

20 30 40 50 55

Sensor-Power Derating

You must derate the allowable current from each channel sensor-power port based on operating ambient temperature to keep module power dissipation to an acceptable level.

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About the FLEX I/O Diagnostic Input Module 25

User Power +

PTC Resistor

Off-Wire Current Monitor Fault if: 1 < 50 μA

Sensor Power

Sensor

Input

Vsensor = (Ext Pwr) - 2.2V

Overcurrent causes PTC to open

Voltage Drop = 2.2V maximum

24V dc External User Power Supply

User Power

Unused Sensor Power Ports

You must connect dummy resistors to unused Sensor Power ports to mask the diagnostic function. If external resistors are not used, the module's sensing circuitry will not detect the intended voltage or current and not report that a fault exists. The module’s fault and open-channel indicators light, and the module’s open and module error bits are set, thus rendering fault detection of the remaining channels useless. The recommended value of this dummy resistor is 20 KΩ (+

10%), 1/8 W (or larger).

Open Contact Mechanical Switches and Relays

The module's sensing circuitry must detect a minimum current level to conclude that an open circuit does not exist. Electronic input field devices typically have sufficient leakage current to satisfy the minimum requirement. However, hard contacts have no leakage current, so you must add dummy resistors in parallel to the hard contacts to supply the minimum current needed for the module to sense that an open circuit does not exist. The recommended resistor value is 20 kΩ (+ the dummy resistor at the field device also allows for monitoring of field wiring conditions. Connect the resistor between sensor power and input signal, or between sensor power and common.

10%), 1/8 W (or larger). Placement of

Sensor Power Internal Voltage Drop

The modules sensor power circuit exhibits an internal voltage drop. This voltage drop can be as large as 2.2V for all operating conditions. You must subtract 2.2V from the value of your external user power supply to determine the voltage applied to power attached sensors. Make sure this voltage meets sensor requirements. Consult the data sheet for your sensor to determine what voltage is necessary.

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26 About the FLEX I/O Diagnostic Input Module

Configure Your Diagnostic Input Module

Dec. 15 14 13 12 11 10 09 08 07 06 05 04 03 02 01 00 Oct. 17 16 15 14 13 12 11 10 07 06 05 04 03 02 01 00

Read 1 I 15 I 14 I 13 I 12 I 11 I 10 I 9 I 8 I 7 I 6 I 5 I 4 I 3 I 2 I 1 I 0 Read 2 Not used Read Diagnostics Status Write 1 Not used Input Filter FT 0-15 Not used Where: I = Input

FT = Input filter time Diagnostic status; Bit 00 = module error; Bit 01 = external power reverse polarity error; Bit 02 = sensor power short error; Bit 03 = sensor power open wire error

The configuration and input filter selection table are shown below.

Data Table & Input Filter Time Selection

The inputs are read in Word 1. Bit 00 is the first input and decimal bit 15 is the last input.

Diagnostic status is read from Word 2:

Bit 00: Module Error Bit Bit 01: External Power Reverse Polarity Error Bit Bit 02: Sensor Power Short Error Bit Bit 03: Sensor Power Open Wire Error Bit

Input Filter Times

Input filter times are configurable on a module basis. Both off-to-on and on-to-off times are set by write Word 3. The default filter time is 0.25 ms.

Bits Description Filter Time 10 09 08 Filter time for inputs 0

thru 15

0 0 0 Filter time 0 (default) 0.25 ms 0 0 1 Filter time 1 0.5 ms 0 1 0 Filter time 2 1 ms 0 1 1 Filter time 3 2 ms 1 0 0 Filter time 4 4 ms 1 0 1 Filter time 5 8 ms 1 1 0 Filter time 6 16 ms 1 1 1 Filter time 7 32 ms

Off-to-On/ On-to-Off

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Chapter

About the FLEX I/O Diagnostic Output Module

Introduction

About the 1794-OB16D Diagnostic Output Module

In this chapter, you will learn about the diagnostic output module, cat. no. 1794-OB16D.

For Information About See Page

About the 1794-OB16D Diagnostic Output Module 27 Diagnostic Fault Detection 29 Module Protection Functions 30 Module Limitations 32 Configure Your Output Diagnostic Module 32

The 1794-OB16D diagnostic output module provides sixteen 24V dc sourcing outputs with open-wire, short-circuit, and user supply reverse polarity diagnostic features. The module monitors current and voltage at each output channel.

The module detects:

• an open fault if no current is present at the output terminal.

• a short fault if no voltage is present at the output terminal.

• a reverse-polarity fault if reverse voltage is applied.

When an open or short fault is detected:

• the corresponding channels red indicator is illuminated.

• the module’s red fault indicator is illuminated.

• the module’s open or short error bit is set.

• the module error bit is set.

When a user supply reverse-polarity fault is detected:

• the modules red fault indicator is turned on,

• and the reverse error bit is set.

• the module error bit is set.

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28 About the FLEX I/O Diagnostic Output Module

17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33

0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15

35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51

Output Channel 0-15

Common

(1794-TB3 shown)

-V

Voltage In +V

Voltage Out +V

Voltage (24V dc)

Terminals 35 thru 50 not available on 1794-TB2

Common

-V

Common

0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15

FLEX TB2/3/3S Terminal Base

A0-A15

B17-B32

C34

B16

Output

Common

V+

V-

Output Device

24V dc External User Power Supply

Wiring Output Loads

You can use the 1794-OB16D diagnostic module with the 1794-TB2, 1794-TB3, or 1794-TB3S terminal base units.

User power can be wired to the (+) voltage and common terminals directly, or power can be daisychained from the FLEX I/O terminal base units on the DIN rail. Output channels are not isolated from one another. All 16 channels share a common return (group isolation from FLEX I/O system-side logic voltages).

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About the FLEX I/O Diagnostic Output Module 29

User Power

Open Wire Detect Current

Shorted Output Monitor

Fault Indicator

Reverse

Short

Open

Output

V+

Open Wire Monitor

Reverse Voltage Monitor

Output Indicator

Output

Flexbus Interface

40117C

Current Limiting Thermal Prot. Output FET

You must connect dummy resistors to unused sensor power ports to mask the diagnostic function. If these external resistors are not used, the module’s sensing circuitry will not detect the intended voltage or current and signal a module fault. The channel fault indicator and the module’s fault indicator will light, and the module’s open and error bits are set, thus rendering fault detection of the remaining channels useless. The recommended value of this dummy resistor is 10 KΩ (+

10%), 1/8 W (or larger). The resistor is wired between unused output channels and common. The figure depicts wiring of a dummy resistor.

Diagnostic Fault Detection

The module monitors current and voltage at each output channel terminal, and monitors the user supply for reverse supply voltage. The figure below shows the location of these fault monitors within the 1794-OB16D diagnostic output module.

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30 About the FLEX I/O Diagnostic Output Module

ATTENTION

The output open-wire current monitor detects a fault condition if the output OFF-state current drops below 0.1 mA. Output channel shorts are protected by a current limit and over-temperature thermal sensor built into the output device. For overcurrents, the output device’s internal current limit is tripped and the output voltage begins to collapse.

For a sustained overcurrent or direct output short the output device’s thermal limit is tripped and the output is automatically turned off. This shorted condition is monitored by the on-state output channel short monitor. It detects a short if the output voltage drops below 2V. If the on-state output channel short is removed, the output will automatically recover and voltage will appear at the output, thus driving the attached load on.

A shorted output channel turns off and deenergizes a connected load. Following removal of the short the output channel becomes active and will reenergize a connected load. Be careful for unexpected machine operation following removal of an active output channel short.

Module Protection Functions

Optocouplers isolate FLEX I/O system-side logic voltages from the user power supply and output channels. This provides protection against field-side voltages and transients.

The module protection functions consist of output device short protection, external power supply reverse voltage protection, and power supply loss detection

Output Device Short Protection

Diagnostic digital outputs have internal electronics to prevent too much current from flowing through the module. This feature protects the module, attached wiring, and load from damage. Current limit and over-temperature thermal sensor built into the output device protect against output shorts. For an overcurrent, the output device’s internal current limit trips and output voltage collapses. The output device’s thermal limit is tripped and the output is automatically turned off if an output short circuit is detected. This shorted condition is monitored by the on-state output channel short monitor. It will detect a short if the output voltage drops below 2V. Under shorted conditions, the shorted channels indicator turns red, the module fault indicator turns red and the short fault bit and module error bit are set. If the on-state output channel short is removed, the output automatically recovers and voltage appears at the output, thus driving the attached load on.

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About the FLEX I/O Diagnostic Output Module 31

(1794-IB16D shown)

External Power Supply Reverse Voltage

If the external user power supply polarity is incorrect, the module is protected and reports a reverse user voltage fault. The reverse voltage condition must be at least -10V to detect a fault. The modules fault indicator turns red and the reverse fault bit is set. The module error bit is also set. When the correct user power supply polarity is applied, the module Fault indicator is off and the reverse fault bit is not set.

User Power Supply Loss Detection

The module does not check for presence of the external user power supply. You can detect user power loss by wiring any spare 24V dc input on a 1794-IB16D input module or 1794-IB16 input module to the power leads of the power supply for the 1794-OB16D.

Output Fault & Idle States With Network Communication Failure

Configure module outputs for fault states, (either all on, all off or Hold Last State), in the event of a network communication failure (fault state) or switchover to Program mode (idle state). For example, if your module is configured so that the state of the outputs turn off during Program (idle) mode, any on-state outputs will turn off when in idle mode (processor keyswitch placed in Program mode). Refer to documentation for your FLEX I/O adapter and associated processor or controller for further information.

Indicator Status Information

The 1794-OB16D diagnostic output module has status indicators that allow you to check the module health and operational status.

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32 About the FLEX I/O Diagnostic Output Module

• Channel I/O Status- This indicator displays the on/off state of each output channel, as well as channel wiring fault conditions:

– Off indicates the output channel is off with no faults.

– Yellow indicates the output channel is on with no faults.

– Red indicates either an output channel open or short condition.

• Module Fault Status- This indictor turns red for individual output channel opens, shorts or module reverse power conditions.

With no fault, the module fault indicator turns off.

Module Limitations

Unused Output Channels

You must connect dummy resistors to unused output channels to mask the diagnostic function. If these external resistors are not used, the module’s sensing circuitry will not detect the intended voltage or current and signal a module fault. The channel fault indicator and the module’s fault indicator will light. The module’s open and error bits are set, thus rendering fault detection of the remaining channels useless. The recommended value of this dummy resistor is 10 Kohms (+

10%), 1/8 W (or larger). The resistor is wired between

unused output channels and common.

Configure Your Output Diagnostic Module

Dec. 15 14 13 12 11 10 09 08 07 06 05 04 03 02 01 00 Oct. 17 16 15 14 13 12 11 10 07 06 05 04 03 02 01 00

Read 1 Not used Write 2 O15 O14 O13 O12 O11 Where O = Output

Diagnostic status; Bit 00 = module error; Bit 01 = external power reverse polarity error; Bit 02 = output short error; Bit 03 = output open wire error

The configuration data table is shown below.

1794-OB16D Configuration Data Table

Read Diagnostics Status

O10O9O8O7O6O5O4O3 02 O1 O0

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The outputs are written in Word 2. Decimal bit 00 is the first output and decimal bit 15 is the last output.

Diagnostic status is read from Word 1:

Bit 00: Module Error Bit Bit 01: External Power Reverse Polarity Error Bit Bit 02: Output Short Error Bit Bit 03: Output Open Wire Error Bit

Chapter

ControlLogix Chassis with 1756-DHRIO module

Remote I/O Network

1771-ASB Adapter

1794-ASB Adapter

1747-ASB Adapter

PLC-5 Controller in Adapter Mode

Configuring Modules for Communication on a Remote I/O Network

Chapter Objectives

This chapter provides you with the RSLogix 5000 software steps you need to configure a 1756-DHRIO module, remote adapter module and block transfer and digital modules for use with a ControlLogix controller on a Remote I/O (RIO) network.

For this Information: See page:

Add a DHRIO module to the project 34 Add a 1794-ASB adapter module to the

project Configuring Block Transfer Modules 40 Create a Block Transfer (Read or Write)

Message Instruction

33 Publication 1794-UM061A-EN-P - July 2006

34 Configuring Modules for Communication on a Remote I/O Network

A. Right-click on I/O Configuration folder

in the controller organizer and select New Module

from the pull-down menu.

B. Click on the + to the nonisolated left of

the Communications group to display the communication modules available.

C. Select the series of 1756-DHRIO

module you are using in your configuration.

D. Click OK.

Add a 1756-DHRIO Module

The 1756-DHRIO module provides two configurable channels that can either send and receive messages over DH+ or scan remote I/O devices. When a channel is configured for remote I/O, the 1756-DHRIO module is designed to function as a remote I/O scanner for a ControlLogix controller. I/O data is exchanged between the 1756-DHRIO module and:

• remote adapters on the remote I/O link

• the ControlLogix controller

• remote block transfer modules

Use the following steps to add a 1756-DHRIO module to your RSLogix5000 project.

1. Start the RSLogix 5000 software.

2. Begin a new project or open an existing project offline.

3. Add the 1756-DHRIO Module to the project.

Publication 1794-UM061A-EN-P - July 2006

1756-DHRIO Module Properties Dialog Box

A. Define the following parameters:

•Name

•Slot

•Type

• Baud Rate

• Revision

• Electronic Keying

• Open Module Properties

Refer to the 1756-DHRIO Module Properties Dialog Box table for information on how to fill-in the dialog box. Click OK.

If: Then Select:

all of the following must match:

•type

• catalog number

• vendor

• major and minor revision number

Exact Match

all information except the minor revision number must match

Compatible Module

no information must match Disable Keying

Configuring Modules for Communication on a Remote I/O Network 35

4. Configure the 1756-DHRIO module parameters.

In This Field: Do the Following:

Name Type a name for the module (i.e.,DHRIO_module_in_slot_1). Slot Type or select the slot number where the module is installed. Type

Channel A Channel B

Baud Rate Specify a baud rate for the Remote I/O channel. This value defines the communication rate at which the

Revision Select the major and minor revision level for your module. Electronic Keying Specify a keying option.

Select RIO for the Channel that is connected to the remote I/O network. If only one channel is configured as a remote I/O scanner, we recommend that you use Channel B. If you configure Channel A as a remote I/O scanner, you cannot use the programming terminal din connector on the front of the 1756-DHRIO module.

1756-DHRIO module scans the remote I/O modules.

When you configure a module, you specify the slot number for the module. However, it is possible to place a different module in that slot, either on purpose or accidently. Electronic keying lets you protect your system against accidental placement of the wrong module in a slot. The keying option you choose determines how closely a module in a slot must match the configuration for that slot.

Open Module Properties Ensure that this box is checked to access all of the available configuration screens for the module. If this box

is not checked, clicking OK assigns the default parameters for the remaining configuration fields.

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36 Configuring Modules for Communication on a Remote I/O Network

A. Define the following parameters:

• Requested Packet Interval

• Inhibit Module

• Major Fault on Controller if Connection Fails While

in Run Mode

Refer to the Connection Tab Screen table for information on how to fill-in the dialog box.

B. Click OK.

The 1756-DHRIO module is now listed in the controller organizer

ATTENTION

5. Specify parameters on 1756-DHRIO Connection tab screen.

Connection Tab Screen

In This Field: Do the Following:

Requested Packet Interval (RPI)

Inhibit Module Check/clear this box if you want to disable/enable connection to the DHRIO module when the controller

Define the requested rate of packet arrival. This value defines the rate for status information about the DHRIO module to be sent to the controller. We recommend that this value be equal to the overall scan time of your program. The parenthetical values to the right of this field display the module-dependant minimum and maximum values.

goes online. If this box is checked, and you go online, the controller organizer displays an inhibit icon next to the module. Although the 1756-DHRIO module connection is inhibited, the DHRIO scanner (Channel A or B) changes to program mode and continues to scan the remote I/O adapters on the remote I/O network. When inhibited, the 1756-DHRIO module accepts configuration from any ControlLogix controller in the control system.

Inhibiting the DHRIO module causes the connection to the module to be disabled and can result in the loss of data.

Major Fault on Controller if Connection Fails While in Run Mode

Determine what action you want the controller to take if communication is lost to the DHRIO module. Place a checkmark in this box if you want a major fault to occur on the controller if the connection between the controller and the DHRIO module is lost. Leaving this box unchecked means that failure to connect to the DHRIO module will not cause a major controller fault.

Publication 1794-UM061A-EN-P - July 2006

Configuring Modules for Communication on a Remote I/O Network 37

A. From controller organizer, select the

channel you are using for your configuration then, right-click to display the pull-down menu.

In this example, only channel B is connected to remote I/O. You can connect both channels to remote I/O simultaneously if necessary. If only one channel is connected to remote I/O, we recommend that you use channel B. If you connect channel A to remote I/O, you cannot use the programming terminal din connector on the front of the 1756-DHRIO module.

B. Choose New Module.

C. Click on the Communications group to

expand the tree and then, choose the 1794-ASB Adapter module from the list.

D. Click OK.

A. Define the following parameters:

•Name

•Rack #

•Starting Group

•Size

• Open Module Properties

Refer to the 1794-ASB Adapter Module Properties Dialog Box table for additional information.

B. Click OK.

Add a 1794 Remote Adapter

The following steps show you how to add a 1794-ASB module to your project and set the configuration parameters.

Module

1. Add the 1794-ASB adapter module to the controller organizer.:

2. Define configuration parameters for the 1794-ASB module.

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38 Configuring Modules for Communication on a Remote I/O Network

A. Define the following parameters:

• Requested Packet Interval

• Inhibit Module

• Major Fault on Controller if Connection Fails While in Run Mode

Refer to the 1794-ASB Connection Tab Configuration Parameters table for additional information.

B. Click OK.

1794-ASB Adapter Module Properties Dialog Box

In This Field: Do the Following:

Name Type a name for the adapter module. We recommend that you use a name that identifies the I/O type

for the adapter module you are configuring. Rack # (Octal) Select the Remote I/O network rack ID for the rack. Starting Group Select the starting group of this rack based on the switch setting of the 1794-ASB adapter module. Size Select the rack size for the adapter based on the switch setting of the 1794-ASB adapter module. Open Module Properties Ensure that this box is checked to access all of the available configuration screens for the adapter

module. If this box is not checked, clicking OK assigns the default parameters for the remaining

configuration fields.

3. Specify parameters on 1794-ASB adapter module Connection tab screen.

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Configuring Modules for Communication on a Remote I/O Network 39

ATTENTION

If the baud rate of the scanner is configured for: The scan rate per adapter equals:

57.6 Kbaud 8ms

115.2 Kbaud 5ms

230.4 Kbaud 3ms

1794-ASB Connection Tab Configuration Parameters

In This Field: Do the Following:

Requested Packet Interval (RPI) Select the rate at which the DHRIO module sends discrete data from the I/O rack to the controller. The

rate of data exchange is directly related to the configured baud rate for the 1756-DHRIO module.

All adapter modules under the same DHRIO channel should be set to the same RPI time. We recommend that the value be equal to 0.5ms x the number of adapters under a given channel x 3,5 8ms depending on the baud rate. For example, if you are using 4 adapters on Channel A of the 1756 DHRIO module configured for a baud rate of 57.6 Kbaud, the recommended RPI for all adapters would be:

(0.5ms x 4 adapters x 8ms per adapter = 16ms)

Inhibit Module Check/clear this box if you want to disable/enable connection to the adapter module when the controller

goes online. If this box is checked, and you go online, the controller organizer displays an inhibit icon next to this module.

Inhibiting the adapter module causes the connection to the module to be disabled and can result in the loss of data.

Major Fault On Controller If Connection Fails While in Run Mode

Determine what action you want the controller to take if communication is lost to the adapter module. Place a checkmark in this box if you want a major fault to occur on the controller if communication with the adapter module is lost. Leaving this box unchecked means that failure to connect to the adapter module will not cause a major controller fault.

If communication with a module fails, the controller operates on old data from the module. To avoid potential injury or damage, either monitor communications with modules or configure modules to produce a major fault if communications fail.

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40 Configuring Modules for Communication on a Remote I/O Network

You can browse to a module in the I/O tree.

A. In the controller organizer, right-click

on the adapter module and then, select New Module from the pull-down menu.

B. Depending on the type of Block I/O

module you are using, expand the Analog or Digital list by clicking on the + sign to the left of the group.

C. Right-click on RIO-MODULE to

highlight.

D. Click OK.

Configure Digital Modules

Although not required, when the module is in the I/O configuration, you gain these advantages:

• It is easier to complete the communication path to the module.

• The I/O configuration provides documentation about the module.

For example, once you add an I/O module to the controller organizer window you can use the Browse button on the Communication Tab to select the path for the block transfer message.

1. Add a block transfer module to your project configuration...

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Configuring Modules for Communication on a Remote I/O Network 41

A. Define the following parameters:

•Name

•Group

•Slot

• Open Module Properties

Refer to the 1756-DHRIO Block Module Transfer Parameters table for additional information.

B. Click OK.

C. Repeat steps A and B for the Diagnostic

output module.

The I/O modules are added to the controller organizer tree.

2. Configure parameters for the RIO Block Transfer module.

1756-DHRIO Block Module Transfer Parameters

In This Field: Do the following:

Name Type a name for the I/O module on the RIO network. You must name this module to be able to choose a

path from the pull-down menu for the message instruction.

Group Determine what group on the module provides the first word of I/O data. This selection is affected by

the parent module’s configuration. For example, if the parent module’s size is equal to 1/2 rack (4 I/O

groups), this module’s configuration offers the option of starting with group 0, 1, 2 or 3. Slot Enter the location of the remote I/O module. Open Module Properties Uncheck this box. There are no additional module properties to configure for the module.

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42 Configuring Modules for Communication on a Remote I/O Network

A. Right-click on Main Routine.

B. Click Open in the pull-down menu.

Create a Block Transfer (Read or Write) Message Instruction

Analog and specialty I/O modules are block transfer I/O modules. The size of the data that is transferred from the modules to the controller is larger than the space that RSLogix 5000 software has allocated in the controller memory. As a result, you must create message instructions in the Ladder Logic program of the ControlLogix controller to initiate the block transfer request and generate tags (for example, space in the controller’s memory) for the data transferred. This section explains how to configure a block transfer application.

To monitor or control an I/O device, assign the tag name of the device to an instruction in your ladder logic:

• For step-by-step instructions on how to enter logic and tag names, refer to the Logix5000 Controllers Common Procedures, publication number 1756-PM001.

• Data for I/O modules is stored at the controller scope. Controller scope data tags can be used by all programs. In other words, the data in a controller tag is available to every task or program within the controller application. Controller tags can be viewed as global variables. When you assign addresses, be sure the scope selection is at the Controller to view the I/O tags.

1. Access the project’s Main Routine of ladder logic in the controller organizer.

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Configuring Modules for Communication on a Remote I/O Network 43

A. Click on the Input/Output

instruction set tab.

B. Click on MSG to insert the

message instruction.

A. Right-click on the ? in the

MSG instruction.

B. Click on New Tag in the

pull-down menu.

A. Enter information for the following fields:

•Name

•Type

• Data Type

•Scope

• Open Message Configuration

Refer to the Defining Tag Parameters table for additional information.

B. Click OK.

2. Add a Message instruction (MSG).

3. Add a new tag to the MSG instruction.

Defining Tag Parameters

In this Field: Do the following:

Name Enter a name for the tag. We recommend that you name the tag to indicate what module service is sent

Type Choose Base type. Data Type Choose Message type. Scope Message Tags can only be created within the Controller Scope. Open Message Configuration Ensure this box contains a check mark to access all of the available configuration screens.

by the message instruction as well as the module type and location.

4. Name and define the parameters for the MSG tag.

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44 Configuring Modules for Communication on a Remote I/O Network

A. Define the following message configuration

fields:

•Message Type

•Number of Elements

• Destination Element or New Tag (Block Transfer Read only)

• Source Element (Block Transfer Write only)

Refer to the Message Configuration Parameters - Block Transfer Read or Write table below for additional information.

B. Click on the Communication tab.

5. Define the Block Transfer Configuration Tab parameters

Message Configuration Parameters - Block Transfer Read or Write

In This Field: Do the following:

Message Type Select Block Transfer Read or Block Transfer Write from the pull-down menu. The fields for the screens

change based on the type of message you choose.

Number of Elements Define the number of 16-bit integers to transfer. The value entered in this field is determined by the type

of module you are using. The value range is 0 to 64.

Block Transfer Read Screen

Destination Element Use the pull-down menu to select a tag to place the data from the read transfer into (i.e. browse to a tag)

or, click on New Tag to create a tag for data that is read from module to be placed into. When creating a new tag be sure to select Controller scope and assign Integer (INT) as the data type.

Block Transfer Write Screen

Source Element Use the pull-down menu to select the tag in the controller that contains data to transfer to the I/O module

(i.e. browse to a tag) or, click on New Tag to create the tag for the controller where data is placed to be transferred to the I/O module. When creating a new tag, be sure to select Controller as the scope and assign Integer (INT) as the data type.

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Configuring Modules for Communication on a Remote I/O Network 45

A. Define the following communication fields:

• Path

• Module Address

• Cache Connections

B. Click OK.

If you have this software and firmware revision:

Then you can cache:

11.x or earlier block transfer messages for up to 16 connections

other types of messages for up to 16 connections

12.x or later up to 32 connections

6. Configure the Communication Tab for the MSG Instruction.

Communication Parameters

Path Click on Browse to see a list of the I/O modules in the system. To be able to choose a path for your message

instruction using the Browse button, you had to previously configure the I/O module. If the module is not in the I/O configuration tree then, you must manually type the path to the 1756-DHRIO module in this field (i.e., (1,1) where

the first 1 represents the backplane and the second 1 represents the slot of the 1756-DHRIO module). Module Address These fields are filled in based on the module that you choose in the Path field. Cache

Connections

Checking this box means that the controller keeps the connection open after it completes the block transfer. The

next block transfer utilizes the connection and avoids the delay of having to establish connections. Keeping the

connection open can result in faster block transfers but be aware that the connection remains open indefinitely.

The controller has a limited amount of connections and keeping this connection open could result in the controller

not being able to establish connections with another device.

Clearing this box means that the connection will be uncached. An uncached connection is a connection between

two points that opens only when a message is enabled and closes when the controller completes the block

transfer. Uncached connections are not as fast as cached connections.

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46 Configuring Modules for Communication on a Remote I/O Network

Ladder Logic Examples

The following illustration provide you with a ladder logic examples for 1794 diagnostic modules. The example is typical ControlLogix software ladder rungs for block transfer message instructions

Ladder Logic Example for 1794 Diagnostic Modules.

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Chapter

Configure FLEX I/O Digital Modules on a DeviceNet Network

How to Use This Chapter

This chapter provides basic information on how to use a 1794-ADN FLEX I/O adapter to connect 1794 FLEX I/O digital modules to a DeviceNet network.

Topic See Page

How to Use This Chapter 47 Add the Scanner to the I/O Configuration of

the Controller Using RSLogix 5000 Software Determine the Address of DeviceNet Data 52 Tally Memory Requirements 54 If You Configure the Adapter Offline 55 Set the Address of the Adapter 56

Use RSNetWorx for DeviceNet software to add the 1794-ADN DeviceNet adapter and FLEX I/O modules on a DeviceNet network.

To use the FLEX I/O adapter, cat. no. 1794-ADN:

Step: Page:

❑ Tally Memory Requirements 5-54 ❑ As an option, give each module its own memory location (DINTs)

within the scanner. This may make your programming easier. Assign one address for the 1794-ADN and all the modules that you connect to it.

❑ If You Configure the Adapter Offline 5-55

5-54

❑ Set the Address of the Adapter 5-56

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48 Configure FLEX I/O Digital Modules on a DeviceNet Network

EXAMPLE

Add the Scanner to the I/O Configuration of the Controller Using RSLogix 5000 Software

To access the data of your network, add the scanner to the I/O configuration of the controller.

To add a scanner:

Step: See page:

❑ If You Need to Conserve EtherNet/IP or ControlNet Network

Bandwidth

❑ Add the Scanner to the I/O Configuration Folder 50 ❑ Define the Properties of the Scanner 51

If You Need to Conserve EtherNet/IP or ControlNet Network Bandwidth

The default configuration of the scanner gives you the maximum amount of input, output, and status data.

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If the scanner communicates with the controller via an EtherNet/IP or ControlNet network and you need to conserve bandwidth over that network, consider reducing the input, output, or status sizes.

• Set the input and output sizes = the number of input and output DINTs in the scanner that actually store device data.

not

•If you are to the minimum required. See Set the status size for a scanner on page 49.

going to use all the status information, set the status size

Set the status size for a scanner

•If you want to scanner status/display, then set the Status Size = 10.

• If you also want to read the status code of the scanner, set the Status Size = 11.

only

use the ASCII representation of

Set the status size for a scanner

Configure FLEX I/O Digital Modules on a DeviceNet Network 49

If you want this information: Set the Status

Size to (DINTs):

Which gives you:

Member: Data Type

count of I/O scans 10 ScanCounter DINT indication that a device has failed:

DeviceFailureRegister SINT[8]

• There is 1 bit for each address on the DeviceNet network (0 -63).

• The position of a bit = address of a device.

• If a bit = 1, then the device at that address has failed.

indication that the data size of a device does not match the amount of

AutoverifyFailureRegister SINT[8]

memory allocated for the device in the scanner:

• There is 1 bit for each address on the DeviceNet network (0 -63).

• The position of a bit = address of a device.

• If a bit = 1, then their is a mismatch with that address.

indication that a device is idle:

DeviceIdleRegister SINT[8]

• There is 1 bit for each address on the DeviceNet network (0 -63).

• The position of a bit = address of a device.

• If a bit = 1, then the device at that address is idle.

indication that a device is online:

ActiveNodeRegister SINT[8]

• There is 1 bit for each address on the DeviceNet network (0 -63).

• The position of a bit = address of a device.

• If a bit = 1, then the device at that address is online. ASCII representation of scanner status/display StatusDisplay SINT[4] address of the scanner 11 ScannerAddress SINT status code of scanner ScannerStatus SINT address with an error:

ScrollingDeviceAddress SINT

• scrolls through the addresses with errors

• ScrollingDeviceStatus member shows the status code status code of an address with an error:

ScrollingDeviceStatus SINT

• scrolls through addresses with errors

• ScrollingDeviceAddress member shows the address possible future expansion of the structure – 5 DINTs 16 status code of lower 32 devices – 1 byte per device 24 DeviceStatus SINT[32] status code of all devices – 1 byte per device 32 DeviceStatus SINT[64]

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50 Configure FLEX I/O Digital Modules on a DeviceNet Network

1. Right-click and choose New Module.

2. Choose the type of scanner.

3. Select the major revision of the scanner.

ControlLogix, FlexLogix, and SoftLogix5800 scanners

CompactLogix scanner

EtherNet/IP to DeviceNet linking device

ControlNet to DeviceNet linking device

Add the Scanner to the I/O Configuration Folder

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Configure FLEX I/O Digital Modules on a DeviceNet Network 51

3. Choose Next.

4. Choose Browse and find the RSNetWorx configuration file for the network (.dnt file). The default path for the file is

…\Program Files\Rockwell Software\RSNetWorxII\Networks.

5. Choose Finish.

1. Specify the general properties (name, slot, sizes, etc.).

2. Choose Next.

Define the Properties of the Scanner

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52 Configure FLEX I/O Digital Modules on a DeviceNet Network

input data from the scanner

status data from the scanner

output data for the scanner

Determine the Address of DeviceNet Data

The scanner memory uses this format: Which is this tag in the controller

When you add the scanner to the I/O configuration of the controller, RSLogix 5000 software automatically creates a set of tags for the input, output, and status data of the network:

The tags for your DeviceNet data follow this format:

slot type .Data [element]

Where: Is:

slot slot number of the scanner location If you have this scanner: Then location is:

local ControlLogix 1756-DNB Local:slot_number_of_scanner remote ControlLogix 1756-DNB name_of_remote_bridge:slot_number_of_scanner CompactLogix 1769-SDN Local:slot_number_of_scanner SoftLogix5800 1784-PCIDS Local:slot_number_of_scanner DriveLogix/FlexLogix 1788-DNBO name of the scanner in the I/O configuration of the controller Linking Device 1788-EN2DN or

1788-CN2DN

type If the data is: Then type is:

input from a device I output to a device O status of the network S

.bit location :type .Data [element] .bit

name of the linking device in the I/O configuration of the controller

= Optional

element specific DINT (DWord, 32-bit integer) within the array bit specific bit within an integer

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Configure FLEX I/O Digital Modules on a DeviceNet Network 53

2. Find the corresponding tag in the controller-scoped tags of the controller using RSLogix 5000.

3. Find the required data within the controller tag. Use the data map for the device as a reference.

Local:2:I.Data[0]

000000000 0 0 0 0 0 0 0000000000 0 0 0 0 0 0 0

data map for Bulletin 160 AC drive

1. On the report for the network, find the memory address for the input or output data of the device.

To determine the tag name (address) for DeviceNet data:

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54 Configure FLEX I/O Digital Modules on a DeviceNet Network

Device Input Size of

Device (bytes)

Output Size

of Device

(bytes)

FLEX I/O adapter—1794-ADN 2 0 digital output module—1794-OB16D 2 2 digital input module—1794-IB16D 2 0

Tot al 6 2

Device Address Input Size of

Device (bytes)

Input Memory

in Scanner

(DINTs)

Output Size

of Device

(bytes)

Output Memory

in Scanner

(DINTs)

Start/stop Buttons 1 1 1 1 Motor Starter 4 1 4 1 FLEX I/O Adapter w/modules 6 2 2 1

Total

1. Add the input bytes of each module + 2 bytes for the adapter.

2. Add the output bytes of each module (0 for the adapter).

3. Add the totals to the main tally.

Sub Tally

Main Tally

I/OI/OI/

A D N

DeviceNet network

Tally Memory Requirements

The 1794-ADN FLEX I/O adapter packs the data of its I/O modules into a contiguous block of input or output bytes. By default, the modules share DINT elements in the scanner.

For example, to determine the amount of scanner memory required for your adapter and its I/O modules

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As an option, give each module its own memory location (DINTs) within the scanner. This may make your programming easier. Assign one address for the 1794-ADN and all the modules that you connect to it.

Configure FLEX I/O Digital Modules on a DeviceNet Network 55

offline

configuration

online

configuration

Online

Configuration

Offline

Configuration

If You Configure the Adapter Offline

If you configure the FLEX I/O adapter offline, check the I/O sizes of each module. For FLEX I/O, RSNetWorx software uses offline I/O sizes that are different from the default values of the modules.

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56 Configure FLEX I/O Digital Modules on a DeviceNet Network

1. To change the address, press the button above or below a number.

2. Connect the adapter to the network.

3. Turn on power to the adapter.

4. Check the Mode/Net STATUS light.

If: Then the:

Green (Flashing or Solid)

address is OK

Solid Red address and/or baud rate conflict with another device Off device is waiting to set its baud rate

When autobaud is on, the device waits until it hears another device on the network. It then sets its baud rate to that of the other device.

Set the Address of the Adapter

To set the address of the FLEX I/O DeviceNet adapter 1794-ADN:

For more information on using DeviceNet in Logix5000 control systems, see publication DNET-UM004

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Chapter

Configure Your Adapter and Digital Modules on a ControlNet Network

Introduction

This chapter guides you through the steps required to configure your 1794 FLEX I/O ControlNet adapter and associated modules on a ControlNet network using RSNetworx for ControlNet and RSLogix 5000 software.

For this information: See page:

Set Up the Hardware 58 Setting a Requested Packet Interval (RPI) 6-58 Select a Communication Format 6-59 Add Local and Remote ControlNet Modules 65 Add Distributed I/O 66 Download the Program to the Controller 68 Configure the 1794-ACN15 Adapter 69 Schedule I/O Module Connections 70 Access Module Data via the 1794-ACN15 Adapter 75 Change Configuration Data 77

This chapter describes how a controller controls distributed I/O over ControlNet. The controller requires a communication module to connect to the network. Distributed I/O modules require an adapter to connect to the network.

In this example, we show you how to control FLEX I/O over ControlNet using RSNetworx for ControlNet and RSLogix 5000.

To control distributed I/O over ControlNet, you must:

• Add local and remote ControlNet communication modules to your RSLogix 5000 project.

• Add distributed I/O to your RSLogix 5000 project.

• Schedule the ControlNet network via RSNetWorx for ControlNet.

• Use the I/O information in RSLogix 5000

You can also validate connections to distributed I/O when controlling it over ControlNet. This task is particularly useful when one or more of the connections are not working but is not required, especially when all connections appear to work normally.

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58 Configure Your Adapter and Digital Modules on a ControlNet Network

Local Chassis

Logix5000 controller with ControlNet communication module

Distributed I/O

ControlNet adapter with I/O modules

Data

Programming Ter mi na l

43611

Set Up the Hardware

In this example, the Logix5000 controller uses a ControlNet communication module in the local chassis to connect to the ControlNet network. The distributed (remote) I/O has a ControlNet adapter to connect it to the ControlNet network.

Make sure:

Setting a Requested Packet Interval (RPI)

• all wiring and cabling is properly connected

• the communication driver [such as, AB-PCIC(S)-1] is configured for the programming workstation

When you configure an I/O module, you define the RPI for the module. The RPI specifies the period at which data updates over a connection. For example, an input module sends data to a controller at the RPI that you assign to the module. Configure the RPI in milliseconds.

RPIs are only used for modules that produce or consume data. For example a local ControlNet communication module does not require an RPI because it is not a data-producing member of the system; it is used only as a bridge.

In Logix5000 controllers, I/O values update at a period that you configure via the I/O configuration folder of the project. The values update asynchronously to the execution of logic. At the specified interval, the controller updates a value independently from the execution of logic.

Set the RPI only as fast as needed by the application. The RPI determines the number of packets per second on a connection. Each I/O module has a limit of how many packets it can handle per second. If you exceed this limit, the module cannot open any more connections.

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Configure Your Adapter and Digital Modules on a ControlNet Network 59

Select a Communication Format

When you configure a remote ControlNet communications module or an I/O module, you select a communication format. The communication format you choose determines the data structure for the tags that are associated with the module. Many I/O modules support different formats. Each format uses a different data structure.

The communication format that you choose also determines:

• Direct or rack-optimized connection

• Ownership of outputs

For a remote ControlNet communications module, you must select one of the formats listed below.

Use this communication format with a remote ControlNet communication module:

None • All of the remote I/O communicating with a

In these scenarios:

controller via the remote ControlNet communication module use a Direct Connection communication format.

• The connection is used for scheduled peer interlocking.

• When I/O will be predominately direct connections.

• When multiple controllers control the outputs in the chassis

Rack optimized • Some or all of the remote I/O communicating

with a controller via the remote ControlNet communication module use a Rack Optimized communication format.

• To minimize ControlNet bandwidth when using large volume of digital I/O.

• If only one controller will control the I/O.

Rack optimized - Listen only • Some or all of the remote I/O communicating

with a controller via the remote ControlNet communication module use a Rack Optimized communication format.

• The connection is going to read inputs but is not going to be controlling outputs.

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60 Configure Your Adapter and Digital Modules on a ControlNet Network

For I/O modules, the available communication formats depend on the module type. In general:

If you have this type of I/O module: And want: Select a communication format that specifies:

digital module a rack-optimized connection Rack Optimization

a direct connection or to use specialty features of the module, such as diagnostics, timestamps, or electronic fuses

The data your controller needs from the I/O module. For example, if your application uses a 1756-IA16I module in a remote chassis that must provide timestamped input data, you should select the CST Timestamped Input Data communication format.

to only listen to data from the module.

analog module a direct connection or to use

specialty features of the module, such as diagnostics, timestamps, or electronic fuses

to only listen to data from the module.

See online help in RSLogix 5000 programming software for specific communication formats per I/O module.

A Listen Only communication format that matches the data the I/O module is broadcasting to other controllers.

The data your controller needs from the I/O module. For example, if your application uses a 1756-OF6CI module in a remote chassis that must provide floating point output data, you should select the Float Data communication format.

A Listen Only communication format that matches the data the I/O module is broadcasting to other controllers.

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Configure Your Adapter and Digital Modules on a ControlNet Network 61

Direct or rack-optimized connection

Logix5000 controllers use connections to transmit I/O data. These connections can be direct connections or rack-optimized connections.

direct connection A direct connection is a real-time, data transfer link between the controller and an I/O module - analog or digital. In

some cases (for example, with some modules) this connection enables your controller to collect more data from an I/O module. For example, with a direct connection, the controller can collect diagnostic status data from a 1756-IA8D module that would not be collected in a rack-optimized connection.

The controller maintains and monitors the connection with the I/O module. Any break in the connection, such as a module fault or the removal of a module while under power, sets fault bits in the data area associated with the module.

rack-optimized connection

Digital I/O Modules only - A rack-optimized connection consolidates connection usage between the controller and all the digital I/O modules in the chassis (or DIN rail). Rather than having individual, direct connections for each I/O module, there is one connection for the entire chasis (or DIN rail).

Any time a remote chassis houses I/O modules that use rack-optimized connections, the remote ControlNet communication module connecting these modules to their owner-controller must also use a rack-optimized connection. However, you can mix direct and rack-optimized connections to the same remote chassis. For example, if your remote chassis houses 6 digital I/O modules and your application requires that you use direct connections for the 3 that require them and rack-optimized connection for the others, you can select direct connections for the 3 that require them and rack-optimized connections for the other 3. In this case, even though you must use a rack-optimized connection for the remote ControlNet communication module the owner-controller still makes direct connections with the 3 I/O modules that are configured as such.

You can only make up to 5 rack-optimized connections to a single remote ControlNet communication module.

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62 Configure Your Adapter and Digital Modules on a ControlNet Network

ControlNet network

I/O

controller with ControlNet communication module or built-in communication port

ControlNet adapter with digital I/O modules

ControlNet adapter with analog I/O modules

ControlNet adapter with digital I/O modules

TIP

Direct connections for I/O modules

In this example, assume that each distributed I/O module is configured for a direct connection to the controller.

The table below calculates the connections in this example.

System Connections: Amount:

Controller to local ControlNet communication module 0

Controller to ControlNet adapter

(1)

direct connection for digital I/O modules

direct connection for analog I/O modules

total connections used: 6

(1)

In this example, the remote ControlNet adapter uses the None communications format.

If you have a high number of modules, direct connections to each module may not be feasible because the module supports a finite number of connections and packets per second, and direct connections may require more resources than the module has available.

In this case, use rack-optimized connections to conserve connection use and network traffic.

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Configure Your Adapter and Digital Modules on a ControlNet Network 63

ControlNet network

I/O

ControlNet adapter with digital I/O modules

ControlNet adapter with analog I/O modules

ControlNet adapter with digital I/O modules

controller with ControlNet communication module or built-in communication port

Rack-optimized connections for I/O modules

In this example, assume that each digital I/O module is configured for a rack-optimized connection to the controller. Analog modules must be configured for direct connections.

The table below calculates the connections in this example.

System Connections: Amount:

Controller to local ControlNet communication module 0 Controller to ControlNet adapters with digital modules

(rack-optimized connection to each adapter)

Controller to ControlNet adapter with analog modules

(direct connection for each analog I/O module)

total connections used: 4

The rack-optimized connection conserves connections, but can limit the status and diagnostic information that is available from the digital I/O modules.

To increase the number of available connections, use a rack-optimized connection to any remote adapter with multiple digital I/O modules that allow rack-optimized connection, instead of direct connections to those I/O modules.

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64 Configure Your Adapter and Digital Modules on a ControlNet Network

Ownership

In a Logix5000 system, modules multicast data. This means that multiple modules can receive the same data at the same time from a single module. When you choose a communication format, you have to choose whether to establish an owner or listen-only relationship with the module.

owner controller The controller that creates the primary configuration and communication connection to a module. The owner

controller writes configuration data and can establish a connection to the module. The owner controller is the only device that controls the outputs.

An I/O connection where another controller owns/provides the configuration data for the I/O module. A controller using a listen-only connection only monitors the module. It does not write configuration data and con only maintain a connection to the I/O module when the owner controller is actively controlling the I/O module.

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1. Add Local ControlNet Communication Module

2. Add Remote ControlNet Communication Module

Add Local and Remote ControlNet Modules

Before you can connect to and control distributed I/O, you must add local and remote ControlNet communication modules. The type of distributed I/O determines your choice of a remote ControlNet adapter. Figure shows a brief series of screens used when adding local and remote ControlNet communication modules to an RSLogix 5000 project.

For more detailed information on how to add local and remote ControlNet modules to your project, refer to publication CNET-UM001

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66 Configure Your Adapter and Digital Modules on a ControlNet Network

local communication module

device

A. Add the local communication module (bridge).

B. Add the remote adapter for the distributed I/O

chassis or DIN rail.

C. Add the distributed I/O module.

…you build the I/O configuration in this order

For a typical distributed I/O network…

controller

I/O module

remote adapter

Add Distributed I/O

To communicate with the I/O modules in your system, you add bridge, adapter, and I/O modules to the I/O Configuration folder of the controller. Within the I/O Configuration folder, you organize the modules into a hierarchy (tree/branch, parent/child).

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Do these steps to add distributed I/O to your RSLogix 5000 project:

1. Add the local ControlNet communications modules, add the ControlNet adapter for the distributed I/O.

2. Add the distributed I/O module.

Configure Your Adapter and Digital Modules on a ControlNet Network 67

To: Do this:

Use the module’s default configuration.

Specify the general information about the module (name, comm format, RPI, and others) and click Finish.

Customize the configuration.

Specify the general information about the module (name, comm format, RPI, and others). Then use the Tabs to step through subsequent screens to configure such parameters as filter times and fault actions. If the Open Module Properties is checked, clicking OK will automatically take you to next tab.

3. Configure the distributed I/O module. Depending on the distributed I/O type, the configuration screens differ.

After you complete adding all Flex I/O modules to your project file, you must download the project to your Logix5000 controller.

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Download the Program to the Controller

Follow this procedure to download the program you just saved to the ControlLogix controller.

1. From the main menu, choose Communications>Who-Active.

2. Select the processor slot in the chassis.

3. From the Who Active dialog, choose Set Project Path.

4. From the Who Active dialog, choose Download to see the Download

dialog.

5. From the Download dialog, choose Download.

You see this RSLogix 5000 dialog.

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Notice that the 1756-CNB Bridge is now on line, but the rest of the I/O configuration (adapter and I/O modules) connections are not scheduled (notice the yellow triangles).

Configure the 1794-ACN15 Adapter

You have now built the I/O tree in RSLogix 5000, and the RSLogix 5000 software used the chassis size from the 1794-ACN15 General Tab. Now you need to download this new chassis size value into the 1794-ACN15 adapter hardware. This procedure will synchronize the chassis size value from the RSLogix 5000 software into the 1794-ACN15 adapter.

1. Highlight the 1794-ACN15 adapter, and right-click to choose Properties.

Verify the node address and the chassis size.

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2. Click the Connection tab.

Notice that the connection request error is still present because we haven’t scheduled any of the I/O module connections yet. You’ll do that through RSNetWorx for ControlNet.

Schedule I/O Module Connections

Use these procedures to schedule I/O module connections.

1. Start RSNetWorx for ControlNet.

2. From the File menu, choose New.

3. Click OK.

4. Choose Network>Online.

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5. Browse to ControlNet Selection dialog.

6. Click OK.

When you are online, you’ll see the following dialog.

7. Choose Edits Enabled in the top left of the dialog.

File and Save.

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You see the Online/Offline mismatch window.

8. Click OK.

9. Give the RSNetworx file a unique name, if desired.

10. If the file already exists, you are prompted before overwriting it.

11. Click OK.

12. The network is verified, and configured,

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13. The network and connections are now scheduled.

14. From the main menu, choose Network>Properties. The _default dialog

appears.

Specify the following information on network parameters:

15. Specify a value for Network Update Time - the repetitive time interval in which data can be sent on the link.

16. Specify a value for Max Scheduled Address - the highest number node that has scheduled connections to it.

17. Specify a value for Max Unscheduled Address - the node with the highest MAC ID that can use unscheduled time on the link.

These values are set to 99 by default. Change these values to what is installed in your system. This saves you time because the controller will not have to search for all of the node addresses.

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18. Specify a value for Media Redundancy on channel A, B or A and B.

19. Click OK to see the Save As dialog.

20. Click Save to see the Save As dialog.

21. From the Save As dialog, enter a name and location for the file, and click

Save.

You see the Save Configuration dialog.

22. Click OK.

23. Minimize the RSNetworx for Controlnet window, and open your

RSLogix 5000 window.

24. Notice the I/O OK is solid green in your RSLogix 5000 project.

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clear of faults

25. Notice that all of the yellow warning triangles are gone in the I/O Configuration once connections are scheduled..

26. Notice that the Status in the 1794-ACN15 Module Properties dialog is Running with no faults.

Access Module Data via the 1794-ACN15 Adapter

Use the following information to use the 1794 FLEX I/O ControlNet adapter module data in the ladder logic program.

• ACN15 = the name you gave to your ControlNet adapter

• # = slot number of FLEX I/O module (0 to 7)

• C = configuration, I = input, O = output

When there is no slot number, that is the rack optimized data.

Here are some typical sample comfiguration data examples.

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TIP

ACN15:3:C (1794-IB16D module) configuration data

ACN15:2:I (1794-IB16D module) input data

ACN15:4:O (1794-OB16D module) configuration data

ACN15:4:I (1794-OB16D module) input data

ACN15:4:O (1794-OB16D module) output data

It is also possible to send configurations via CIP messages.

Use the controller tags in your ladder program to read input data or write output data.

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IMPORTANT

Slot Status Bits

The Slot Status bits display the connection status for each of the FLEX I/O modules that use a rack optimized connection.

• Adapter:I:slot status bits:3 and :4 correspond to the rack optimized connection in the 1794-ACN15 slots 3 and 4.

• Each of the other bits correspond to a FLEX I/O module that may be installed in the I/O backplane.

Change Configuration Data

In this example, the 1794-ACN15 adapter is using 3 direct connections; slot 0 is a 1794-IE12 module, slot 1 is a 1794-OE12 module, and slot 2 is a 1794-IB8XOB4 module. Slot 3 is a 1794-IB16D, and slot 4 is a 1794-OB16D module, both connected using rack optimized connections. All modules are installed and operating correctly with (0 = no error). A 1 would indicate “no connection error,” (typically, module removed or missing).

One way to change the configuration data for a 1794 FLEX I/O module:

1. Enter the new configuration data (#:C) into the controller tags.

2. Select Module or Adapter in the I/O configuration tree.

3. Right-click Properties.

When your first add an I/O module to the I/O configuration, the default parameters are assigned. To change these default values, you must modify the controller reference tags associated with the I/O module. To download the new configuration, you must re-initiate the connection to the I/O module. This download is best achieved by inhibiting and uninhibiting the module.

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4. Select Properties.

5. Click on the Connection tab.

6. Check the Inhibit Module checkbox.

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When you inhibit an adapter, all modules are inhibited. When you inhibit a module, only the module is inhibited, not the whole rack.

7. Click Apply.

Configure Your Adapter and Digital Modules on a ControlNet Network 79

8. Click OK to confirm disabling the connection.

The connection is now inhibited.

9. Uncheck the Inhibit Module checkbox to disable the inhibit module

function.

10. Click Apply to download the configuration data.

11. Click Yes.

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12. The connection status is now Running, and the module is using the updated configuration data.

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Chapter

Configure your Digital Module on an EtherNet/IP Network

How to Use This Chapter

This chapter describes how a controller controls distributed I/O over an EtherNet/IP network. The controller requires a communication module to connect to the network. Distributed I/O modules require an adapter to connect to the network.

Topic See Page

How to Use This Chapter 81 Set Up the Hardware 82 Select a Requested Packet Interval (RPI) 82 Select a Communication Format 83 Add Distributed I/O 88 Download the Program to the Controller 89 Access Distributed I/O 91 Determining Required Network Parameters 93 Assigning Network Parameters via the BOOTP/DHCP Utility 94 Using Other Methods to Assign Network Parameters 97 Duplicate IP Address Detection 100 IP Address Swapping 102

In this example, we show you how to control FLEX I/O over EtherNet using RSNetWorx for EtherNet and RSLogix 5000 software.

To control distributed I/O over EtherNet, you must:

• Add local and remote EtherNet communication modules to your RSLogix 5000 project.

• Add distributed I/O to your RSLogix 5000 project.

• Schedule the EtherNet network via RSNetWorxRSNetWorx for EtherNet.

• Use the I/O information in RSLogix 5000

You can also validate connections to distributed I/O when controlling it over EtherNet. This task is particularly useful when one or more of the connections

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82 Configure your Digital Module on an EtherNet/IP Network

Local Chassis

Logix5000 Controller with EtherNet/IP Communication Module

Distributed I/O

EtherNet/IP Adapter with I/O Modules

Data

Switch

Programming Ter mi na l

are not working but is not required, especially when all connections appear to work normally.

When you first install a Rockwell Automation EtherNet/IP module (right out of the box), the module is BOOTP/DHCP enabled.

Set Up the Hardware

In this example, the Logix5000 controller has an EtherNet/IP communication module to connect to the EtherNet/IP network. The distributed (remote) I/O has an EtherNet/IP adapter to connect it to the EtherNet/IP network.

The Logix5000 controller can communicate with each I/O module directly (direct connection). Or you can configure a rack-optimized connection to the EtherNet/IP adapter to send data to any digital I/O modules.

Select a Requested Packet Interval (RPI)

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Make sure:

• the IP addresses are set for each EtherNet/IP module

• all wiring and cabling is properly connected

• the communication driver (such as, AB-ETHIP-1) is configured for the programming workstation

For more information on the Ethernet Adapter and Flex I/O in an Ethernet network, refer to publication ENET-UM001

When you configure an I/O module, you define the requested packet interval (RPI) rate for the module.

The RPI specifies the period at which data updates over a connection. For example, an input module sends data to a controller at the RPI that you assign to the module. Configure the RPI in milliseconds.

Configure your Digital Module on an EtherNet/IP Network 83

RPIs are only used for modules that produce data. For example a local EtherNet/IP communication module does not require an RPI because it is not a data-producing member of the system; it is used only as a bridge.

In Logix5000 controllers, I/O values update at a period that you configure via the I/O configuration folder of the project. The values update asynchronous to the execution of logic. At the specified interval, the controller updates a value independently from the execution of logic.

Set the RPI only as fast as needed by the application. The RPI also determines the number of packets per second that the module will produce on a connection. Each module has a limit of how many packets it can produce per second. If you exceed this limit, the module cannot open any more connections.

For information on RPI and how it affects the actual packet interval (API), see the EtherNet/IP Performance Application Solution, ENET-AP001

Select a Communication

When you configure an I/O module, you select a communication format for the module. The communication format you choose determines the data

Format

structure for the tags that are associated with the module. Many I/O modules support different formats. Each format uses a different data structure. The communication format that you choose also determines:

• Direct or rack-optimized connection

• Ownership

The available communication formats depend on the type of I/O module. In general:

If you have this type of I/O module And want Select a communication format that specifies

Digital Module rack-optimized connection Rack Optimization

Scheduled Data... Input Data Output Data

Digital Module a direct connection Any connection that is not Rack Optimization

to use specialty features of the module, such as diagnostics, timestamps, or electronic fuses

Analog Module a direct connection

(only direct connection is supported for analog modules)

Full Diagnostics... CST Timestamped...

Float Data... Integer Data CST Timestamped...

See online help in RSLogix 5000 programming software for specific communication formats per I/O module.

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A direct connection is any connection that does not use the Rack Optimization Comm Format.

Rack-optimized Connection

Choose Direct or Rack-optimized Connection

The Logix5000 controller uses connections to transmit I/O data. These connections can be direct connections or rack-optimized connections.

Term Definition

Direct Connection A direct connection is a real-time, data transfer link between the controller and an I/O

module. The controller maintains and monitors the connection with the I/O module. Any break in the connection, such as a module fault or the removal of a module while under power, sets fault bits in the data area associated with the module.

Rack-optimized Connection

For digital I/O modules, you can select rack-optimized communication. A rack-optimized connection consolidates connection usage between the controller and all the digital I/O modules in the chassis (or DIN rail). Rather than having individual, direct connections for each I/O module, there is one connection for the entire chassis (or DIN rail).

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Configure your Digital Module on an EtherNet/IP Network 85

EtherNet/IP Network

Controller With EtherNet/IP Communication Module

EtherNet/IP Adapters With I/O Modules

Digital I/O Modules Analog I/O Modules Digital I/O Modules

Switch

Direct Connections For I/O Modules

In this example, assume that each distributed I/O module is configured for a direct connection to the controller.

The following table calculates the connections in this example.

System Connections Amount

Controller to local EtherNet/IP communication module 0 Controller to EtherNet/IP adapter

Direct connection for digital I/O module Direct connection for analog I/O module

Total connections used 6

4 2

If you have many modules, direct connections to each module may not be feasible because you could use up the number of connections and packets per second supported by the module.

Refer to Rack-optimized Connections For I/O Modules on page 86 to conserve connection use and network traffic.

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EtherNet/IP Network

Controller With EtherNet/IP Communication Module

EtherNet/IP Adapters With I/O Modules

Digital I/O modules Analog I/O Modules Digital I/O Modules

Switch

Rack-optimized Connections For I/O Modules

In this example, assume that each digital I/O module is configured for a rack-optimized connection to the controller. Analog modules must be configured for direct connections.

The following table calculates the connections in this example.

System Connections Amount

Controller to local EtherNet/IP communication module 0 Controller to EtherNet/IP adapter with digital modules

(rack-optimized connection to each adapter) Controller to EtherNet/IP adapter with analog modules

(direct connection for each analog I/O module)

Total Connections used 4

The rack-optimized connection conserves connections, but can limit the status and diagnostic information that is available from the I/O modules.

To optimize the number of available connections, use a rack-optimized connection between any digital I/O that allow it and the remote adapter that connects the distributed I/O to the controller via the communication module.

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An owner connection is any connection that does not include Listen-Only in its Comm Format.

Listen-only Connection

Ownership

Owner controller The controller that creates the primary configuration and communication connection to a

module. The owner controller writes configuration data and can establish a connection to the module.

Listen-only connection An I/O connection where another controller owns/provides the configuration data for the

I/O module. A controller using a listen-only connection only monitors the module. It does not write configuration data and can only maintain a connection to the I/O module when the owner controller is actively controlling the I/O module.

If the module is also in the I/O configuration of another controller, then select the Listen Only version of the Comm Format (for example, Listen Only Input Data).

Select a Remote Adapter

The remote adapter you use depends on the distributed I/O you use. When using FLEX I/O modules, you use the FLEX I/O adapter, cat. no. 1794-AENT, which requires the BOOTP utility.

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Local Communication Module

Device

1. Add the local communication module (bridge).

2. Add the remote adapter for the distributed I/O chassis or DIN rail.

3. Add the I/O module.

…you build the I/O configuration in this order.

For a typical distributed I/O network you build the I/O configuration in this order.

Controller

I/O Module

Remote Adapter

Add Distributed I/O

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Add a Module

To Do this

Use the default configuration

Specify the general information about the module (name, comm format, etc.) and click Finish.

Customize the configuration

Specify the general information about the module (name, comm format, etc.). Then use the tabs to step through subsequent screens.

1. Right-click the level (branch) to which you want to add the module and choose New Module.

2. Choose the module.

3.Configure the module.

Configure your Digital Module on an EtherNet/IP Network 89

If the Ddstributed I/O is Select this format for the remote

Digital Rack Optimization Rack Optimization Analog None An appropriate direct-connection format.

Download the Program to the Controller

The Comm Format selection you make when you add a communication module and its I/O modules is based on whether you want rack-optimized or direct connections to each distributed I/O module. In general:

adapter

Select this format for the distributed I/O module

Follow this procedure to download the program you just saved to the ControlLogix controller.

1. From the main menu, choose Communication>Who-Active.

2. Select the processor slot in the chassis.

3. From the Who-Active dialog, choose Set Project Path.

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4. From the Who Active dialog, choose Download to see the Download dialog.

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5. From the Download dialog, choose Download.

6. Click OK.

7. Your system is now up and running.

Configure your Digital Module on an EtherNet/IP Network 91

EXAMPLE

Example 2

Example 1

Access Distributed I/O

I/O information is presented as a structure of multiple fields, which depend on the specific features of the I/O module. The name of the structure is based on the location of the I/O module in the system. Each I/O tag is automatically created when you configure the I/O module through the programming software. Each tag name follows this format:

Location:SlotNumber:Type.MemberName.SubMemberName.Bit where:

This address variable: Is:

Location Identifies network location

LOCAL = local DIN rail or chassis

ADAPTER_NAME = identifies remote adapter or bridge SlotNumber Slot number of I/O module in its chassis Type Type of data

I = input

O = output

C = configuration

S = status MemberName Specific data from the I/O module; depends on the type of data the module can store

For example, Data and Fault are possible fields of data for an I/O module. Data is the common name for

values the are sent to or received from I/O points. SubMemberName Specific data related to a MemberName. Bit (optional) Specific point on the I/O module; depends on the size of the I/O module (0-31 for a 32-point module)

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Example 1

Example 2

conveyor:2:I.0

<conveyor:I.Data[2].0>

tag name of the I/O device tag name of the adapter

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When you choose rack optimization for an I/O module, its tags are created as aliases for the tags of the adapter module. In your logic, you see the tag of the device as aliases for a tag of the adapter module. (The tag name of the adapter is in angle brackets).

Configure your Digital Module on an EtherNet/IP Network 93

Data type with tag names are produced by the program.

General Information About

The following information outlines steps you must take if initially setting up your EtherNet/IP network.

IP Addresses

Determining Required Network Parameters

To operate on an EtherNet/IP network, you must define these parameters.

EtherNet/IP Parameter: Description:

IP address The IP address uniquely identifies the module. The IP address is in the form xxx.xxx.xxx.xxx

where each xxx is a number between 0-255. These are reserved values you cannot use:

• 127.0.0.1

• 0.0.0.0

• 255.255.255.255

subnet mask Subnet addressing is an extension of the IP address scheme that allows a site to use a

single network ID for multiple physical networks. Routing outside of the site continues by dividing the IP address into a net ID and a host ID via the class. Inside a site, the subnet mask is used to redivide the IP address into a custom network ID portion and host ID portion. This field is set to 0.0.0.0 by default.

If you change the subnet mask of an already-configured module, you must cycle power to the module for the change to take effect.

gateway A gateway connects individual physical networks into a system of networks. When a node

needs to communicate with a node on another network, a gateway transfers the data between the two networks. This field is set to 0.0.0.0 by default.

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IMPORTANT

If you use DNS addressing, or reference the module via host name in MSG instructions, define these parameters:

EtherNet/IP Parameter: Description:

host name A host name is part of a text address that identifies the host for a module. The full text

address of a module is host_name.domain_name.

domain name A domain name is part of a text address that identifies the domain in which the module

resides. The full text address of a module is host_name.domain_name. The domain name has a 48-character limit.

If you specify a DNS server, you must enter a domain name. Also, if you send email from the module, some mail relay servers require a domain name be provided during the initial

handshake of the SMTP session. primary DNS server address This identifies the DNS server(s), if used in the network. You must have a DNS server secondary DNS server address

configured if you specified a domain name or a host name in the module’s configuration. The

DNS server converts the domain name or host name to an IP address that can be used by the

network.

The 1756-ENBT requires a DNS server address.

Assigning Network Parameters via the BOOTP/DHCP Utility

For more information on DNS addressing, see publication ENET-UM001

Modules in Logix5000 Control Systems.

, EtherNet/IP

Check with your Ethernet network administrator to determine if you need to specify all of the above parameters.

To configure these network parameters, the recommended method is to use the Rockwell Automation BOOTP/DHCP utility. If this utility is not available, there are other methods you can use.

By default, the EtherNet/IP module is BOOTP enabled. The BOOTP/DHCP utility is a stand alone program that is located in the:

• BOOTP-DHCP Server folder in the Rockwell Software program folder on the Start menu (the utility is automatically installed when you install RSLinx software)

• Tools directory on the RSLogix 5000 installation CD.

Before you start the BOOTP/DHCP utility, make sure you have the hardware (MAC) address of the module. The hardware address is on a sticker located on the side of the EtherNet/IP module. The hardware address in a format similar to: 00-0b-db-14-55-35.

This utility recognizes BOOTP-enabled devices and provides an interface to configure a static IP address for each device.

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Configure your Digital Module on an EtherNet/IP Network 95

To use the BOOTP/DHCP utility:

1. Start the BOOTP/DHCP software.

2. Select Tool → Network Settings.

If appropriate for your network, enter the subnet mask, gateway address, primary/secondary server addresses, and roman name. Click OK.

In the Request History panel you see the hardware addresses of modules issuing BOOTP requests.

3. Double-click on the hardware (MAC) address of the module you want to configure.

The hardware address is on a sticker located on the side of the EtherNet/IP module. The hardware address will be in a format similar to: 00-0b-db-14-55-35.

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The New Entry window appears with the module’s Ethernet Address (MAC).

4. Enter the IP address or the host name. You can also enter a description of the module. Click OK

5. To permanently assign this configuration to the module, highlight the module and click on the Disable BOOTP/DHCP button.

When power is recycled, the module uses the configuration you assigned and not issue a BOOTP request.

If you do not select the Disable BOOTP/DHCP button, on a power cycle, the host controller clears the current IP configuration and will again begin sending BOOTP requests.

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Configure your Digital Module on an EtherNet/IP Network 97

Using Other Methods to

Other methods to assign network parameters include:

Assign Network Parameters

If you are working in these conditions Use this method for assigning network

parameters

• a BOOTP server is not available

• the EtherNet/IP module is connected to another NetLinx network

• the RSLogix 5000 project is online with the controller that communicates to or through the EtherNet/IP module

• DHCP is enabled (not BOOTP) for the EtherNet/IP module

RSLinx software ENET-UM001

RSLogix 5000 software

DHCP software

Other considerations that might affect your choice of method include:

• whether the network is isolated from or integrated into the plant/enterprise network

• size of the network

See publication

For large networks, even isolated networks, it might be more convenient and safer to use a BOOTP/DHCP server rather than RSLogix 5000 or RSLinx software. It might also offer fewer opportunities for assigning duplicate IP addresses.

• company policies and procedures dealing with plant floor network installation and maintenance

• level of involvement by IT personnel in plant floor network installation and maintenance

• type of training offered to control engineers and maintenance personnel

If you use the Rockwell Automation BOOTP or DHCP server in an uplinked subnet where an enterprise DHCP server exists, a module may get an address from the enterprise server before the Rockwell Automation utility even sees the module. You might have to disconnect from the uplink to set the address and have the module remember its static address before reconnecting to the uplink. This is not a problem if you have node names configured in the module and leave DHCP enabled.

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Using RSLinx software to set the IP address

To use RSLinx to configure the EtherNet/IP module:

1. Make sure the module is installed and powered up.

2. Start RSLinx. The RSWho window opens. Navigate in RSWho to the

Ethernet network.

3. Right-click on the EtherNet/IP module (not the controller, if there is one) and select Module Configuration.

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4. Select the Port Configuration tab, choose Status Network Configuration type, and enter the IP address and the other network parameters, if needed.

5. Also, select the Static radio button to permanently assign this configuration to the port. If you select Dynamic, on a power cycle, the controller clears the current IP configuration and will again begin sending BOOTP requests.

Rockwell Automation 1794-OB16D User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

Important User Information

Preface

Purpose of This Manual

Important Warnings and Cautions

North American Hazardous Location Approval

Related Products and Documentation

Introduction

General Description

Network Compatibility

1794-IB16D Diagnostic Input Module Compatibility

1794-OB16D Diagnostic Output Module Compatibility

Install Your Digital Input or Output Module

Introduction

About the 1794-IB16D Diagnostic Input Module

Wiring Input Sensors

Diagnostic Fault Detection

Sensor Power Open and Short Circuit Detection

User Power Supply Reverse Voltage Detection

User Power Supply Loss Detection

Indicator Status Information

Module Limitations

Input Voltage Derating

Sensor-Power Derating

Unused Sensor Power Ports

Open Contact Mechanical Switches and Relays

Sensor Power Internal Voltage Drop

Configure Your Diagnostic Input Module

Input Filter Times

Introduction

About the 1794-OB16D Diagnostic Output Module

Wiring Output Loads

Diagnostic Fault Detection

Module Protection Functions

Output Fault & Idle States With Network Communication Failure

Indicator Status Information

Module Limitations

Unused Output Channels

Configure Your Output Diagnostic Module

Chapter Objectives

Add a 1756-DHRIO Module

Configure Digital Modules

Create a Block Transfer (Read or Write) Message Instruction

Ladder Logic Examples

How to Use This Chapter

Add the Scanner to the I/O Configuration of the Controller Using RSLogix 5000 Software

If You Need to Conserve EtherNet/IP or ControlNet Network Bandwidth

Add the Scanner to the I/O Configuration Folder

Define the Properties of the Scanner

Determine the Address of DeviceNet Data

Tally Memory Requirements

If You Configure the Adapter Offline

Set the Address of the Adapter

Introduction

Set Up the Hardware

Setting a Requested Packet Interval (RPI)

Select a Communication Format

Direct or rack-optimized connection

Ownership

Add Local and Remote ControlNet Modules

Add Distributed I/O

Download the Program to the Controller

Configure the 1794-ACN15 Adapter

Schedule I/O Module Connections

Access Module Data via the 1794-ACN15 Adapter

Slot Status Bits

Change Configuration Data

How to Use This Chapter

Set Up the Hardware

Select a Requested Packet Interval (RPI)

Choose Direct or Rack-optimized Connection

Ownership

Select a Remote Adapter

Add Distributed I/O

Add a Module

Download the Program to the Controller

Access Distributed I/O