Allen-Bradley 1757-ABRIO User manual

Process Remote I/O

(RIO)

Communication

Interface Module

1757-ABRIO

User Manual

Allen-Bradley HMIs

Important User Information

Because of the variety of uses for the products described in this

publication, those responsible for the application and use of these

products must satisfy themselves that all necessary steps have been

taken to assure that each application and use meets all performance

and safety requirements, including any applicable laws, regulations,

codes and standards. In no event will Allen-Bradley be responsible or

liable for indirect or consequential damage resulting from the use or

application of these products.

Any illustrations, charts, sample programs, and layout examples

shown in this publication are intended solely for purposes of

example. Since there are many variables and requirements associated

with any particular installation, Allen-Bradley does not assume

responsibility or liability (to include intellectual property liability) for

actual use based upon the examples shown in this publication.

Allen-Bradley publication SGI-1.1, Safety Guidelines for the

Application, Installation and Maintenance of Solid-State Control

(available from your local Allen-Bradley office), describes some

important differences between solid-state equipment and

electromechanical devices that should be taken into consideration

when applying products such as those described in this publication.

Reproduction of the contents of this copyrighted publication, in whole

or part, without written permission of Rockwell Automation, is

prohibited.

Throughout this publication, notes may be used to make you aware of

safety considerations. The following annotations and their

accompanying statements help you to identify a potential hazard,

avoid a potential hazard, and recognize the consequences of a

potential hazard:

WARNING

!

Identifies information about practices or circumstances

that can cause an explosion in a hazardous environment,

which may lead to personal injury or death, property

damage, or economic loss.

ATTENTION

!

Identifies information about practices or circumstances

that can lead to personal injury or death, property damage,

or economic loss.

IMPORTANT

Identifies information that is critical for successful

application and understanding of the product.

Rockwell Automation

Support

Before you contact Rockwell Automation for technical assistance, we

suggest you please review the troubleshooting information contained

in this publication first.

If the problem persists, call your local Rockwell Automation

representative or contact Rockwell Automation in one of the

following ways:

Your Questions or Comments on this Manual

If you find a problem with this manual, please notify us of it on the

enclosed How Are We Doing? form.

Phone United

States/Canada

1.440.646.5800

Outside United

States/Canada

You can access the phone number for your

country via the Internet:

1. Go to http://www.ab.com

2. Click on Product Support

(http://support.automation.rockwell.com)

3. Under Support Centers, click on Contact

Information

Internet

⇒

1. Go to http://www.ab.com

2. Click on Product Support

(http://support.automation.rockwell.com)

Allen-Bradley HMIs

Notes:

i Publication 1757-UM007A-EN-P - April 2002

Table of Contents

Important User Information. . . . . . . . . . . . . . . . . . . . . . . . . . ii

Rockwell Automation Support . . . . . . . . . . . . . . . . . . . . . . . iii

Your Questions or Comments on this Manual . . . . . . . . . iii

Preface

Who Should Use this Manual. . . . . . . . . . . . . . . . . . . . . . . P-1

Purpose of this Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . P-1

Conventions and Related Terms. . . . . . . . . . . . . . . . . . . . . P-1

Related Documentation. . . . . . . . . . . . . . . . . . . . . . . . . . . P-1

Chapter 1

Overview

1757-ABRIO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

Mapping and Accessing RIO Data . . . . . . . . . . . . . . . . . . . 1-2

RSLinx Requirements. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3

Installing AbRioCfg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3

Quick Start . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5

Chapter 2

Configuring the 1757-ABRIO

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1

Autoconfiguring I/O Racks . . . . . . . . . . . . . . . . . . . . . . . . 2-1

Adding Block Transfer Modules. . . . . . . . . . . . . . . . . . . . . 2-4

Addressing Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5

Configuring Block Transfer Modules . . . . . . . . . . . . . . . . . 2-6

Scaling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6

Input Scaling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-7

Output Scaling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-7

Creating Tags . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-8

Numeric Read and Numeric Write . . . . . . . . . . . . . 2-8

Flag Read and Flag Write . . . . . . . . . . . . . . . . . . . . 2-8

Text Read . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-8

Creating a Tag . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-9

Mapping Data to Tags. . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-10

Discrete I/O . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-10

Block Transfers . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-10

I/O . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-10

Deleting Mapped Data . . . . . . . . . . . . . . . . . . . . . . . . . 2-11

Downloading the Configuration. . . . . . . . . . . . . . . . . . . . . 2-11

Uploading a Configuration . . . . . . . . . . . . . . . . . . . . . . . . 2-11

Allen-Bradley HMIs

Publication 1757-UM007A-EN-P - April 2002

Table of Contents ii

Chapter 3

Accessing Data on the

1757-ABRIO

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1

Modes of Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1

CONFIG Mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1

INACTIVE Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1

ACTIVE Mode (Run) . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2

FORCED ACTIVE Mode . . . . . . . . . . . . . . . . . . . . . . . . 3-2

ProcessLogix Accessing Data from the ABRIO . . . . . . . . . . 3-3

ControlLogix Accessing Data from the ABRIO . . . . . . . . . . 3-6

First: Create Tags For All Messages

and All Storage Areas . . . . . . . . . . . . . . . . . . . . . . 3-6

Second: Create Message Commands to

Read and Write All RIO Data . . . . . . . . . . . . . . . . 3-7

Identifying the Path . . . . . . . . . . . . . . . . . . . . . . . . 3-11

Accessing Data from OPC/DDE . . . . . . . . . . . . . . . . . . . . . 3-12

Configuring a Topic in RSLinx . . . . . . . . . . . . . . . . . . . 3-12

Accessing the Data. . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-13

Troubleshooting ABRIO Communications . . . . . . . . . . . . . 3-13

Chapter 4

Monitoring the 1757-ABRIO

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1

Monitoring Discrete I/O . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1

Monitoring the Data Value of Tags. . . . . . . . . . . . . . . . . . . 4-2

Monitoring the Status of a Block Transfer. . . . . . . . . . . . . . 4-3

Monitoring the Scanner Log. . . . . . . . . . . . . . . . . . . . . . . . 4-4

Monitoring Diagnostic Counters. . . . . . . . . . . . . . . . . . . . . 4-5

Active Rack List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5

Global Diagnostic Counters . . . . . . . . . . . . . . . . . . . . . 4-5

Fatal Errors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-6

Publication 1757-UM007A-EN-P - April 2002

Table of Contents iii

Chapter 5

Supported 1771 Modules

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1

1771-IFE. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2

Module Configuration . . . . . . . . . . . . . . . . . . . . . . . . . 5-2

I/O Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-4

Diagnostic Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-5

1771-OFE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-6

Module Configuration . . . . . . . . . . . . . . . . . . . . . . . . . 5-6

I/O Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-8

Diagnostic Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-8

1771-IR. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-9

Module Configuration . . . . . . . . . . . . . . . . . . . . . . . . . 5-9

I/O Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-11

Diagnostic Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-11

1771-IXE. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-12

Module Configuration . . . . . . . . . . . . . . . . . . . . . . . . . 5-12

I/O Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-13

Diagnostic Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-14

1771-IL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-14

Module Configuration . . . . . . . . . . . . . . . . . . . . . . . . . 5-15

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-16

I/O Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-17

Diagnostic Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-17

1771-NOC. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-18

Module Configuration . . . . . . . . . . . . . . . . . . . . . . . . . 5-18

I/O Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-20

Diagnostic Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-20

1771-NOV. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-21

Module Configuration . . . . . . . . . . . . . . . . . . . . . . . . . 5-21

I/O Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-23

Diagnostic Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-23

1771-NIV . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-24

Module Configuration . . . . . . . . . . . . . . . . . . . . . . . . . 5-24

I/O Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-26

Diagnostic Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-26

1771-NR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-27

Module Configuration . . . . . . . . . . . . . . . . . . . . . . . . . 5-28

I/O Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-29

Diagnostic Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-30

1770-HT1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-31

Rack Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-32

Configuring the 1770-HT1 . . . . . . . . . . . . . . . . . . . . . . 5-32

Configuring the Hart Network . . . . . . . . . . . . . . . . 5-32

Hart Command status. . . . . . . . . . . . . . . . . . . . . . . . . . 5-37

Allen-Bradley HMIs

Publication 1757-UM007A-EN-P - April 2002

Table of Contents iv

Chapter 6

Updating the 1757-ABRIO

Firmware

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1

NTools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1

ControlFlash . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-2

Appendix A

Troubleshooting

LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-1

RIO LED - Network Status . . . . . . . . . . . . . . . . . . . . . . A-1

SYS LED - ControlBus Status. . . . . . . . . . . . . . . . . . . . . A-1

OK LED - Module Health . . . . . . . . . . . . . . . . . . . . . . . A-2

4-Character Display. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-2

Using the Configuration Program for Troubleshooting . . . . A-3

Common Problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-3

Autoconfiguration fails or does not find racks . . . . . . . . A-3

Data is not updating . . . . . . . . . . . . . . . . . . . . . . . . . . A-4

Rack is offline or isn’t updating . . . . . . . . . . . . . . . . . . A-4

Menu items are grayed out. . . . . . . . . . . . . . . . . . . . . . A-4

Using RSLogix 5000 to Diagnose Problems. . . . . . . . . . . . . A-4

General Tab . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-5

Connection Tab. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-5

Module Info Tab . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-6

Backplane Tab. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-6

Appendix B

Operational Comparison Between

the 1757-ABRIO and PLC-5

Normal Operational Messages . . . . . . . . . . . . . . . . . . . . . . B-1

Exception Handling Messages . . . . . . . . . . . . . . . . . . . . . . B-4

Appendix C

Specifications

1 Publication 1757-UM007A-EN-P - April 2002

Preface

Who Should Use this

Manual

We assume you have a good understanding of 1771 RIO (Remote I/O)

as well as the host processor system (ProcessLogix or ControlLogix).

Purpose of this Manual

This manual describes how to understand, configure and troubleshoot

your 1757-ABRIO RIO module.

For installation information, refer to the Process Remote I/O (RIO)

Communication Interface Module, publication 1757-IN916A-EN-P.

Conventions and Related

Terms

Related Documentation

See Table 5.2 on page 5-1 for a listing of related ControlLogix

documentation:

If you need more information on these products, contact your local

Allen-Bradley integrator or sales office for assistance. For more

information on the documentation, refer to the Allen-Bradley

Publication Index, publication SD499 or visit us at:

• //http:www.ab.com.

• //http:www.theautomationbookstore.com.

This term: Means:

Communication module 1757-ABRIO module

RIO Remote I/O

RIUP removal and insertion under power

Bold Commands Name of a software menu item, button,

tab.

=>Programs => 1757-ABRIO => AbRioCfg selecting menu sequence

AbRioCfg 1757-ABRIO Configuration Utility

Allen-Bradley HMIs

Publication 1757-UM007A-EN-P - April 2002

Preface 2

Notes:

1 Publication 1757-UM007A-EN-P - April 2002

Chapter

1

Overview

1757-ABRIO

This document is a user guide for the 1757-ABRIO module, which

allows Rockwell Automation controllers (ProcessLogix or

ControlLogix) to communicate with Allen-Bradley 1771 RIO. The

module acts as a RIO scanner. This module was developed to facilitate

connection to existing analog RIO devices from Logix-based

processors.

As a RIO Scanner, the module:

• Scans 1771 racks with rack numbers from 1 to 37 octal.

• Supports baud rates of 57.6, 115.2 and 230.4 Kbaud.

• Supports up to 32 adapters with any mix of full/partial racks.

• Automatically manages and performs block transfers with

supported 1771 modules, each block transfer can be set on its

own time.

• Provides full diagnostic counters for alarms and maintenance.

Pressure

Transmitter

PLC5/C Controller

SLC Controller

Flex Ex

Data Highway +

ControlNet

COMM

STATUS

FOUNDATION

Fieldbus

ProcessLogix and ControlLogix

ProcessLogix

System Server

POWER

B

A

OK

A

B

Control

NET

A#24

B

A

OK

A

B

Control

NET

A#24

B

A

OK

A

B

Control

NET

A#24

PROGRUN

REM

RUN I/O

RS232

BAT

OK

Logix5550

DH

+

/RIO

CH A CH B

OK

B#15

PLC 5

Controller

DEVICENET

1757-FIMRTP

1788-CN2FF

B

A

OK

Control

NET

A#24

Remote I/O

ABRIO

FIM

CNB

1771 Remote I/O

43290

Allen-Bradley HMIs

Publication 1757-UM007A-EN-P - April 2002

1-2 Overview

• Automatically performs scaling of raw analog data.

• Implements a watchdog timer in the module’s hardware.

If the firmware does not kick the watchdog within the time-out

period the watchdog bites and places the module into the

configured safe failure state.

• Automatically provides fault/fail safe commands to I/O and

controller.

• Implements a jabber inhibit timer.

If the network transmitter is on longer than 150% of the longest

network frame time, the transmitter is forced off and places the

module into the configured safe failure state.

• Supports firmware updates using NTools or ControlFlash.

• Supports direct DDE/OPC data access.

• Provides support for Rockwell Automation’s 1770 HT1, HT8,

HT6 Hart interface products.

• Provides Hart command set for calibration and diagnostics.

Mapping and Accessing

RIO Data

Use the provided 1757-ABRIO configuration tool (AbRioCfg) to create

tags which are arrays of discrete, floating point or text values that the

host processor reads or writes using unscheduled messages.

You map data that the module receives or sends into these tags. The

data mapping is stored in flash memory on the 1757-ABRIO module.

1757-ABRIO Module

Tag

From CLX/PLX

Write Data

To CLX/PLX

1771 I/O

• R/W Analog Data with Block Transfer Status

• R/W Discrete Data

• Scales Analog Data

• Analog/Digital Modules

• Hard Configured for Safe/Fault States

RIO

Read Data

Scan

List

RIO Scanner

Publication 1757-UM007A-EN-P - April 2002

Overview 1-3

RSLinx Requirements

The AbRioCfg program requires RSLinx OEM or above. You cannot

use RSLinx Lite. To access the module using OPC or DDE, you must

have RSLinx 3.31 or above.

Installing AbRioCfg

1. RSLinx should be installed before you install the AbRioCfg

software.

2. Insert the CD supplied with the 1757-ABRIO and run the

program setup.exe.

3. Confirm that you have RSLinx OEM or RSLinx Professional (not

RSLinx Lite) installed.

Before you install a new version of AbRioCfg, you must delete the

old version. To remove the previous version:

1. Use Start/Settings/Control Panel to access the Windows Control

Panel.

2. Run Add/Remove Programs.

3. Select the currently installed version of the AbRioCfg program

and remove it.

WARNING

!

It is essential that the control program on the host

processor matches the addresses in the mapping

configuration on the 1757-ABRIO. Otherwise the

control program may inadvertently write to the

incorrect I/O locations. If you change the data

mappings on the 1757-ABRIO, make sure that the

control program is using the correct addresses.

IMPORTANT

Messages about DTL32.DLL during installation or

when you run the program indicate problems with

the RSLinx installation.

If you get these messages, install the proper version

of RSLinx before you continue.

IMPORTANT

Removing the software does not delete stored

configuration files.

Allen-Bradley HMIs

Publication 1757-UM007A-EN-P - April 2002

1-4 Overview

If you see question marks for the 1757-ABRIO module when running

RSNetWorx or RSLinx, install the EDS file from the CD.

You do not need to load the firmware on the CD into your

1757-ABRIO module as the module ships with the latest version of

firmware. The firmware is on the CD for archival purposes only.

Publication 1757-UM007A-EN-P - April 2002

Overview 1-5

Quick Start

Use the following steps to quickly get the module running. Detailed

confirmation about each step is available in other sections of this

manual or in the installation manual. You can only have one scanner

per RIO network. Remove any other scanners on the RIO network

before continuing.

Table 1.1 Quick Start Reference

Step: Refer to:

1. Install the module in the

chassis and connect it to

the RIO network.

Publication 1757-IN916A-EN-P,

the 1757-ABRIO Installation

Instructions.

2. Autoconfigure the RIO

racks. This step locates all

connected racks.

Autoconfiguring I/O Racks on

page 2-1.

3. Add and configure block

transfer modules.

Adding Block Transfer Modules

on page 2-4.

4. Create tags for access by

the ProcessLogix or

ControlLogix controller.

Creating Tags on page 2-8.

5. Map I/O data to the tags

and save the configuration

file.

Mapping Data to Tags on

page 2-10.

6. Download the

configuration to

1757-ABRIO module.

Downloading the Configuration

on page 2-11.

7. Create your application to

access data on the module.

Accessing Data on the

1757-ABRIO on page 3-1.

Allen-Bradley HMIs

Publication 1757-UM007A-EN-P - April 2002

1-6 Overview

Notes:

1 Publication 1757-UM007A-EN-P - April 2002

Chapter

2

Configuring the 1757-ABRIO

Overview

The 1757-ABRIO ships with a configuration utility, AbRioCfg. This

configuration program is an online configuration tool. Use it to:

• query the RIO network to determine the location and size of the

racks present

• add and configure supported block transfer modules

• create tags for access by the control processor

• map I/O data to those tags

• download the configuration to the module, using RSLinx

• monitor data and diagnostics on the module

• upload a configuration from a module

• print the configuration

Autoconfiguring I/O Racks

The first step in building a configuration is to perform an

autoconfiguration. The RIO network must be connected to the

1757-ABRIO module and the module must be in “inactive” mode.

1. Click on Hardware Config in the network tree, then select

Actions => Config from the main menu.

ATTENTION

!

When using AbRioCfg, you must left click to

select/highlight before you can right click to activate

menu options.

1. To start the configuration, left

click here once to highlight.

2. Then click the Autoconfig

icon on the toolbar.

Allen-Bradley HMIs

Publication 1757-UM007A-EN-P - April 2002

2-2 Configuring the 1757-ABRIO

The configuration program displays an RSWho window.

2. Use RSWho to navigate to the ABRIO module.

3. Select the module and click OK.

The configuration program asks for the network baud rate.

4. Check the appropriate baud rate and click OK.

The 1757-ABRIO then sends messages to all possible racks and

builds the network rack configuration from the responses. It

displays a list of the racks it found in the network tree.

If you expand a tree item, you will see the partial racks that

make up the rack number.

5. Expand the rack and left click on the I/O Group.

The baud rate is set in each of the

racks. All of the racks on one RIO

network must operate at the same

baud rate.

Publication 1757-UM007A-EN-P - April 2002

Configuring the 1757-ABRIO 2-3

The 1757-ABRIO has been designed to provide fault responses

similar to the PLC-5 as well as the PLX and CLX. This provides

consistency when integrating existing I/O with new controllers.

6. Right click on each rack in the network tree and select Enter

Rack Switch Setting from the menu.

The Rack SW1 Setting dialog box appears.

7. Select the value that matches the Last State switch setting in the

backplane of the 1771 rack, either De-energize or Hold Last

State.

Allen-Bradley HMIs

Publication 1757-UM007A-EN-P - April 2002

2-4 Configuring the 1757-ABRIO

This setting tells the 1757-ABRIO what to do if the host

processor stops updating the tag that this rack’s discrete data is

mapped to.

Adding Block Transfer

Modules

Autoconfiguration can locate the racks present on the network but it

cannot detect the I/O modules in those racks. You must add any

block transfer modules to the racks manually. You do not have to add

discrete modules.

To add a block transfer module:

1. Expand the rack that contains the module in the network tree.

2. Right click on the partial rack that contains the module and

select Add Module from the menu.

The Add BT Module dialog box appears.

3. Select the Module Type from the list.

4. Select the slot location for the module.

To do this, you should be familiar with Allen-Bradley addresses

and, in particular, with 1771 addressing modes (see below). See

Table 5.2 on page 5-1 for a list of related documentation.

5. Click OK to accept the module type and location.

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Allen-Bradley 1757-ABRIO User manual

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