IBM Modbus Plus Manuale utente

Modbus Plus

X-Link Driver

User’s Guide

Version 1.22

50 Northland Road

Waterloo, Ontario, CANADA

N2V 1N3

Tel: (519) 725-5136 Fax: (519) 725-1515

www.sstech.on.ca

Modbus Plus X-Link Driver User’s Guide

Publication Revision: 1.22

Publication Date: January 15, 1999

This document applies to the Modbus Plus X-Link Driver (SA85.DRV).

form without the prior written permission of Woodhead Canada Limited.

SST is a trademark of Woodhead Industries, Inc. X-Link is a registered

trademark of Woodhead Canada Limited. All other trade names are

trademarks or registered trademarks of their respective companies.

SST strives to ensure accuracy in our documentation. However, due to

rapidly evolving products, on occasion software or hardware changes may

not have been reflected in the documentation. If you notice any inaccuracies,

please contact SST.

Written and designed at SST, 50 Northland Road, Waterloo, Ontario, Canada

N2V 1N3.

Modbus Plus X-Link Driver User’s Guide

Contents

1. Introduction...........................................................39

1.1 What is the Modbus Plus Driver?............................. 39

1.2 Why Do I Need This Manual?.................................. 40

1.3 How Do I Use This Manual?.................................... 41

1.4 Where Can I Find More Help? ................................. 42

2. Communication.....................................................43

2.1 Requirements............................................................ 44

2.2 Compatibilities.......................................................... 44

3. Configuration........................................................45

3.1 Configuration Parameters......................................... 46

4. Mappings...............................................................47

4.1 Data Types and Lengths ........................................... 48

4.2 Source Accesses ....................................................... 49

4.3 Destination Accesses ................................................ 50

4.4 Local Addresses........................................................ 51

4.5 External Addresses ................................................... 51

4.6 Status Counters......................................................... 52

5. Troubleshooting ...................................................53

6. Specification .........................................................55

6.1 Driver CMOS Storage Requirements ....................... 55

Modbus Plus X-Link Driver User’s Guide

Introduction

1.1 What is the Modbus Plus Driver?

The Modicon Modbus Plus X-Link driver allows the X-Link to transfer data

to or from devices on the Modicon Modbus Plus network.

Modbus Plus X-Link Driver User’s Guide

1.2 Why Do I Need This Manual?

This manual describes the communication requirements and capabilities of

the Modbus Plus driver, the configuration parameters for the driver and the

mappings possible for the Modicon PLCs. It provides troubleshooting

information and technical specifications that can be referenced when

required.

For further information, refer to the SA85 Interface Card User's Guide,

Modicon IBM Host Based Devices User's Guide GM-HBDS-001 Rev. D. As

well, refer to the appropriate Modicon documents for information on

Modicon hardware, programming and network protocols.

If you need information on the X-Link unit or the X-Link configuration

software program, refer to the X-Link User’s Guide.

Introduction

1.3 How Do I Use This Manual?

The following conventions will help you better understand and use the

material in this manual.

Text you type appears in Courier font. For example, “Type

mkdir C:\XLINK to make a new X-Link

directory.”

Menu Names are italicized. You choose menu options. For

instance, “Choose the X-Link/New... command.”

Dialog Box Names are italicized. For example, “The File to Open

dialog box appears.”

Dialog Box Options are selected. For example, “From the Ports list,

select the COM port you are using.”

Text in Message

Boxes appears in quotation marks. For example: The

message “Already Downloaded - Reload?”

appears.

Keystrokes Single keystrokes appear in square brackets. Press

keys separated by “+” signs at the same time. For

example, “Press ALT + O,” means you should

press the [Alt] key and the [O] key at the same

time.

Mouse

or Keyboard? You may use either a mouse or the keyboard to

select options in the configuration program. There

are typically three different ways to choose a

command. This manual typically lists one or two

command options. Refer to the Shortcut Summary

in the X-Link User’s Guide for additional choices.

Modbus Plus X-Link Driver User’s Guide

1.4 Where Can I Find More Help?

If you have a question or problem that the manuals or on-line help do not

address, you can contact X-Link Technical Support by mail, fax or email, or

by phone during regular business hours (EST).

X-Link Technical Support

SST, a division of Woodhead Canada Limited

50 Northland Road

Waterloo, Ontario

N2V 1N3

Voice: (519) 725-5136

Fax: (519) 725-1515

Email: [email protected]

X-Link drivers and manuals are also available on the SST Web site,

www.sstech.on.ca.

Communication

Once configured, the X-Link emulates a station on the Modbus Plus

network. It can send messages to other stations and receive messages from

other stations. This section outlines the requirements and compatibilities of

this communication.

Modbus Plus X-Link Driver User’s Guide

2.1 Requirements

To communicate to the Modbus Plus network, the X-Link requires a

Modicon SA85 card. The X-Link Modbus Plus driver supports either the

redundant or non-redundant version of the SA85.

Installation and cabling requirements are detailed in the SA85 user manual,

Modicon IBM Host Based Devices User's Guide GM-HBDS-001 Rev. D.

2.2 Compatibilities

The Modbus Plus X-Link driver has been written to conform with the

specification in the Modicon IBM Host Based Devices User's Guide

GM-HBDS-001 Rev. D.

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