OPERATION MANUAL PROFIBUS Communication Unit SmartSlice GRT1-Series

OPERATION MANUAL PROFIBUS Communication Unit SmartSlice GRT1-Series

W409-E2-01-PROFIBUS-DP.qxd 08.04.2004 11:38 Seite 1

Authorised Distributor:

Cat. No. W409-E2-01 Note: Specifications subject to change without notice.

Printed in Europe

Cat. No. W04E-EN-

03

SmartSlice GRT1-Series

GRT1-PRT

PROFIBUS

Communication Unit

OPERATION MANUAL

SmartSlice GRT1-Series

GRT1-PRT

PROFIBUS Communication Unit

Operation Manual

Revised November 27, 2006

ii

Notice:

OMRON products are manufactured for use by a trained operator and only for the purposes described in this manual.

The following conventions are used to classify and explain the precautions in this manual. Always heed the information provided with them.

!DANGER

Indicates information that, if not heeded, is likely to result in serious injury or loss of life.

!WARNING

Indicates information that, if not heeded, could possibly result in serious injury or loss of life.

!Caution

Indicates information that, if not heeded, could possibly result in minor or relatively serious injury, damage to the product or faulty operation.

OMRON Product References

All OMRON products are capitalized in this manual. The first letter of the word Unit is also capitalized when it refers to an OMRON product, regardless of whether it appears in the proper name of the product.

The abbreviation Ch appears in some displays and on some OMRON products. It often means word and is abbreviated as Wd in the documentation.

The abbreviation PLC means Programmable Logic Controller.

Visual Aids

The following headings appear in the left column of the manual to help you locate different types of information.

Note Indicates information of particular interest for efficient and convenient operation of the product.

1, 2, 3...Indicates various lists such as procedures, checklists etc.

iii

Trademarks and Copyrights

PROFIBUS, PROFIBUS FMS, PROFIBUS DP, and PROFIBUS PA are trademarks of PROFIBUS

International.

Microsoft, Windows, Windows NT, Windows 2000, Windows XP, Windows Explorer and ActiveX are trademarks of Microsoft Corporation.

Other product names and company names in this manual are trademarks or registered trademarks of their respective companies.

The copyright of the GRT1-PRT PROFIBUS Communication Unit belongs to OMRON Corporation.

OMRON, 2006

All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted, in any form, or by any means, mechanical, electronic, photocopying, recording, or otherwise, without the prior written permission of

OMRON.

No patent liability is assumed with respect to the use of the information contained herein. Moreover, because OMRON is constantly striving to improve its high-quality products, the information contained in this manual is subject to change without notice. Every precaution has been taken in the preparation of this manual. Nevertheless, OMRON assumes no responsibility for errors or omissions. Neither is any liability assumed for damages resulting from the use of the information contained in this publication.

iv

TABLE OF CONTENTS

About this Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

vii

PRECAUTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

xiii

3

4

1

2

5

6

Intended Audience . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

General Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Safety Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Operating Environment Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Application Precautions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Conformance to EC Directives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

xiv xiv xiv

xv

xvi

xvii

SECTION 1

Features and Specifications . . . . . . . . . . . . . . . . . . . . . . . . . .

1

1-1 Overview of GRT1-Series SmartSlice I/O Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2

1-2 GRT1-PRT PROFIBUS Communication Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1-3 GRT1-PRT Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1-4 Basic Operating Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3

7

9

SECTION 2

Installation and Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

11

2-1 Unit Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

12

2-2 Installing the GRT1-PRT Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2-3 Wiring the GRT1-PRT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2-4 Setting up a PROFIBUS Network . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2-5 Installation of Configuration Software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

16

20

24

28

SECTION 3

Setup and Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

31

3-1 Station Address Settings and I/O Allocation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-2 Unit Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

32

36

3-3 Setup the GRT1-PRT Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-4 Operating the Network . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-5 Remote Communication Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

42

52

55

SECTION 4

Troubleshooting and Maintenance . . . . . . . . . . . . . . . . . . . .

59

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

60

4-2 Troubleshooting using the LED Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4-3 Other Errors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4-4 Maintenance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4-5 Replacing the Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

60

64

69

70

v

vi

TABLE OF CONTENTS

Appendices

A PROFIBUS Technology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

B Slave Diagnostics Message . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

C Explicit Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Index. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

87

Revision History . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

91

71

77

81

About this Manual

This manual describes the GRT1-PRT PROFIBUS Communication Unit for OMRON’s SmartSlice I/O

Units. It also describes how to install and operate the Unit.

Please read this manual carefully so that you understand the information provided before installing or using the GRT1-PRT Unit. Start with the precautions in the following section. They describe the operating environment and application safety measures which must be observed prior to and when using the GRT1-PRT Unit.

The sections of this manual are as follows:

Section 1 introduces the GRT1-PRT Unit.

Section 2 describes the installation and setup of the GRT1-PRT Unit.

Section 3 describes the FINS commands supported by the GRT1-PRT Unit.

Section 4 describes the operational aspects of the GRT1-PRT Unit.

Section 5 provides procedures for troubleshooting the GRT1-PRT Unit.

The Appendices contain information supplementary to the information in the main body of the manual. They are referred to in the various sections as required.

Manual

GRT1-series Slice I/O Units

Operation Manual

CS/CJ-series PROFIBUS DP

Master Units Operation Manual

Products

GRT1-series SmartSlice I/O

Units

SYSMAC CS/CJ-series

CS1W-PRM21

CJ1W-PRM21 PROFIBUS DP

Units

SYSMAC WS02-CXP @@-E

CX-Programmer

Contents

Describes the Installation and Operation of the GRT1 SmartSlice I/O Units.

Describes the installation and operation of the CS1W-PRM21 and CJ1W-

PRM21 PROFIBUS Units.

Cat. No.

W455-E1-

W409-E2-

@

@

CX-Programmer

Operation Manual

C200H-series PROFIBUS DP

Master Units

Operation Manual

CJ-series PROFIBUS DP Slave unit

Operation Manual

GRT1-series Devicenet Communications Unit

Operation Manual

SYSMAC C200H-series

C200HW-PRM21

SYSMAC CJ1-series

CJ1W-PRT21

GRT1-series GRT1-DRT

Devicenet Communications Unit

Provides information on how to use the CX-Programmer, programming software which supports CS1/CJ1series PLCs.

Describes the Installation and Operation of the C200HW-PRM21 PROFI-

BUS DP Master Units.

Describes the Installation and Operation of the CJ1W-PRT21 PROFIBUS

DP Slave Units.

Describes the Installation and Operation of the GRT1-DRT Devicenet Communications Unit.

[email protected]

W349-E2-

@

[email protected]

[email protected]

!WARNING

Failure to read and understand the information provided in this manual may result in personal injury or death, damage to the product, or product failure. Please read each section in its entirety and be sure you understand the information provided in the section and related sections before attempting any of the procedures or operations given.

vii

viii

Read and Understand this Manual

Please read and understand this manual before using the product. Please consult your OMRON representative if you have any questions or comments.

Warranty and Limitations of Liability

WARRANTY

OMRON's exclusive warranty is that the products are free from defects in materials and workmanship for a period of one year (or other period if specified) from date of sale by OMRON.

OMRON MAKES NO WARRANTY OR REPRESENTATION, EXPRESS OR IMPLIED, REGARDING NON-

INFRINGEMENT, MERCHANTABILITY, OR FITNESS FOR PARTICULAR PURPOSE OF THE

PRODUCTS. ANY BUYER OR USER ACKNOWLEDGES THAT THE BUYER OR USER ALONE HAS

DETERMINED THAT THE PRODUCTS WILL SUITABLY MEET THE REQUIREMENTS OF THEIR

INTENDED USE. OMRON DISCLAIMS ALL OTHER WARRANTIES, EXPRESS OR IMPLIED.

LIMITATIONS OF LIABILITY

OMRON SHALL NOT BE RESPONSIBLE FOR SPECIAL, INDIRECT, OR CONSEQUENTIAL DAMAGES,

LOSS OF PROFITS OR COMMERCIAL LOSS IN ANY WAY CONNECTED WITH THE PRODUCTS,

WHETHER SUCH CLAIM IS BASED ON CONTRACT, WARRANTY, NEGLIGENCE, OR STRICT

LIABILITY.

In no event shall the responsibility of OMRON for any act exceed the individual price of the product on which liability is asserted.

IN NO EVENT SHALL OMRON BE RESPONSIBLE FOR WARRANTY, REPAIR, OR OTHER CLAIMS

REGARDING THE PRODUCTS UNLESS OMRON'S ANALYSIS CONFIRMS THAT THE PRODUCTS

WERE PROPERLY HANDLED, STORED, INSTALLED, AND MAINTAINED AND NOT SUBJECT TO

CONTAMINATION, ABUSE, MISUSE, OR INAPPROPRIATE MODIFICATION OR REPAIR.

ix

x

Application Considerations

SUITABILITY FOR USE

OMRON shall not be responsible for conformity with any standards, codes, or regulations that apply to the combination of products in the customer's application or use of the products.

At the customer's request, OMRON will provide applicable third party certification documents identifying ratings and limitations of use that apply to the products. This information by itself is not sufficient for a complete determination of the suitability of the products in combination with the end product, machine, system, or other application or use.

The following are some examples of applications for which particular attention must be given. This is not intended to be an exhaustive list of all possible uses of the products, nor is it intended to imply that the uses listed may be suitable for the products:

• Outdoor use, uses involving potential chemical contamination or electrical interference, or conditions or uses not described in this manual.

• Nuclear energy control systems, combustion systems, railroad systems, aviation systems, medical equipment, amusement machines, vehicles, safety equipment, and installations subject to separate industry or government regulations.

• Systems, machines, and equipment that could present a risk to life or property.

Please know and observe all prohibitions of use applicable to the products.

NEVER USE THE PRODUCTS FOR AN APPLICATION INVOLVING SERIOUS RISK TO LIFE OR

PROPERTY WITHOUT ENSURING THAT THE SYSTEM AS A WHOLE HAS BEEN DESIGNED TO

ADDRESS THE RISKS, AND THAT THE OMRON PRODUCTS ARE PROPERLY RATED AND

INSTALLED FOR THE INTENDED USE WITHIN THE OVERALL EQUIPMENT OR SYSTEM.

PROGRAMMABLE PRODUCTS

OMRON shall not be responsible for the user's programming of a programmable product, or any consequence thereof.

Disclaimers

CHANGE IN SPECIFICATIONS

Product specifications and accessories may be changed at any time based on improvements and other reasons.

It is our practice to change model numbers when published ratings or features are changed, or when significant construction changes are made. However, some specifications of the products may be changed without any notice. When in doubt, special model numbers may be assigned to fix or establish key specifications for your application on your request. Please consult with your OMRON representative at any time to confirm actual specifications of purchased products.

DIMENSIONS AND WEIGHTS

Dimensions and weights are nominal and are not to be used for manufacturing purposes, even when tolerances are shown.

PERFORMANCE DATA

Performance data given in this manual is provided as a guide for the user in determining suitability and does not constitute a warranty. It may represent the result of OMRON's test conditions, and the users must correlate it to actual application requirements. Actual performance is subject to the OMRON Warranty and

Limitations of Liability.

ERRORS AND OMISSIONS

The information in this manual has been carefully checked and is believed to be accurate; however, no responsibility is assumed for clerical, typographical, or proofreading errors, or omissions.

xi

PRECAUTIONS

This section provides general precautions for using the GRT1-Series modules, Programmable Controllers and related devices.

The information contained in this section is important for the safe and reliable operation of the GRT1-PRT

PROFIBUS Communication Unit. You must read this section and understand the information contained before attempting to set up or operate a GRT1-PRT PROFIBUS Communication Unit and related systems.

1

4

5

2

3

6

Intended Audience . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

General Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Safety Precautions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Operating Environment Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Application Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Conformance to EC Directives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

6-1 Applicable Directives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

6-2 Concepts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

6-3 Conformance to EC Directives . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

xvii xvii xvii

xviii

xiv xiv xiv

xv

xvi

xiii

Intended Audience

1

1

Intended Audience

This manual is intended for the following personnel, who must also have a knowledge of electrical systems (an electrical engineer or the equivalent).

• Personnel in charge of installing FA systems.

• Personnel in charge of designing FA systems.

• Personnel in charge of managing FA systems and facilities.

2

3

General Precautions

The user must operate the product according to the performance specifications described in the operation manuals.

Before using the product under conditions which are not described in the manual or applying the product to nuclear control systems, railroad systems, aviation systems, vehicles, combustion systems, medical equipment, amusement machines, safety equipment, and other systems, machines, and equipment that may have a serious influence on lives and property if used improperly, consult your OMRON representative.

Make sure that the ratings and performance characteristics of the product are sufficient for the systems, machines, and equipment, and be sure to provide the systems, machines, and equipment with double safety mechanisms.

This manual provides information for Installing and operating the OMRON

GRT1-PRT PROFIBUS Communication Unit. Be sure to read this manual before attempting to use the Unit and keep this manual close at hand for reference during operation.

!WARNING

It is extremely important that the Unit is used for its specified purpose and under the specified conditions, especially in applications that can directly or indirectly affect human life. You must consult your OMRON representative before using it in a system in the above-mentioned applications.

Safety Precautions

!WARNING

Never attempt to disassemble any Units or touch the terminal block while power is being supplied. Doing so may result in serious electrical shock or electrocution.

!WARNING

Provide safety measures in external circuits (i.e., not in the Programmable

Controller), including the following items, to ensure safety in the system if an abnormality occurs due to malfunction of the PLC or another external factor affecting the PLC operation. Not doing so may result in serious accidents.

• Emergency stop circuits, interlock circuits, limit circuits, and similar safety measures must be provided in external control circuits.

• The PLC will stop operation when its self-diagnosis function detects any error or when a severe failure alarm (FALS) instruction is executed. As a countermeasure for such errors, external safety measures must be provided to ensure safety in the system.

xiv

Operating Environment Precautions

4

• The PLC outputs may remain ON or OFF due to deposits on or burning of the output relays, or destruction of the output transistors. As a countermeasure for such problems, external safety measures must be provided to ensure safety in the system.

• When the 24V DC output (service power supply to the PLC) is overloaded or short-circuited, the voltage may drop and result in the outputs being turned OFF. As a countermeasure for such problems, external safety measures must be provided to ensure safety in the system.

• SmartSlice I/O Terminals will continue operating even if one or more I/O

Units is removed from or falls out of the SmartSlice I/O Terminal, i.e., the other I/O Units will continue control operations, including outputs. As a countermeasure for such a possibility, external safety measures must be provided to ensure safety in the system.

!WARNING

The CPU Unit refreshes I/O even when the program is stopped (i.e., even in

PROGRAM mode). Confirm safety thoroughly in advance before changing the status of any part of memory allocated to Output Units, Special I/O Units, or

CPU Bus Units. Any changes to the data allocated to any Unit may result in unexpected operation of the loads connected to the Unit. Any of the following operations may result in changes to memory status.

• Transferring I/O memory data to the CPU Unit from a Programming

Device

• Changing present values in memory from a Programming Device

• Force-setting/-resetting bits from a Programming Device

• Transferring I/O memory files from a Memory Card or EM file memory to the CPU Unit

• Transferring I/O memory from a host computer or from another PLC on a network

4 Operating Environment Precautions

!Caution Do not operate the Unit in the following places:

• Locations subject to direct sunlight.

• Locations subject to temperatures or humidities outside the range specified in the specifications.

• Locations subject to condensation as the result of severe changes in temperature.

• Locations subject to corrosive or flammable gases.

• Locations subject to dust (especially iron dust) or salt.

• Locations subject to exposure to water, oil, or chemicals.

• Locations subject to shock or vibration.

Provide proper shielding when installing in the following locations:

• Locations subject to static electricity or other sources of noise.

• Locations subject to strong electromagnetic fields.

• Locations subject to possible exposure to radiation.

• Locations near to power supply lines.

xv

Application Precautions

5

!Caution The operating environment of the GRT1-PRT PROFIBUS Communication

Unit can have a large effect on the longevity and reliability of the system.

Unsuitable operating environments can lead to malfunction, failure and other unforeseeable problems with the system. Ensure that the operating environment is within the specified conditions at installation time and remains that way during the life of the system. Follow all installation instructions and precautions provided in the operation manuals.

5 Application Precautions

Observe the following precautions when using the GRT1-PRT PROFIBUS

Communication Unit.

!WARNING

Failure to abide by the following precautions could lead to serious or possibly fatal injury. Always heed these precautions.

• Always connect to a class-3 ground (100

or less) when installing the

Units.

!Caution Failure to abide by the following precautions could lead to faulty operation of the Unit or the system. Always heed these precautions.

• Install double safety mechanisms to ensure safety against incorrect signals that may be produced by broken signal lines or momentary power interruptions.

• When adding a new device to the network, make sure that the baud rate is the same as other stations.

• When adding a new SmartSlice I/O Unit to the Communication Unit, make sure that the GRT1-PRT PROFIBUS Communication Unit is powered down, to prevent unexpected results when starting up the new station.

• Use specified communication cables.

• Do not extend connection distances beyond the ranges given in the specifications.

• Always turn OFF the power supply to the personal computer, Slaves, and

Communication Units before attempting any of the following:

• Mounting or dismounting the GRT1-PRT PROFIBUS Communication

Unit, Power Supply Units, I/O Units, CPU Units, or any other Units.

• Assembling a Unit.

• Setting DIP-switches or rotary switches.

• Connecting or wiring the cables.

• Connecting or disconnecting connectors.

• Be sure that all the mounting screws, terminal screws, Unit mounting screws, and cable connector screws are tightened to the torque specified in the relevant manuals. Incorrect tightening torque may result in malfunction.

• Always use the power supply voltage specified in this manual.

• Double-check all the wiring and connection of terminal blocks and connectors before mounting the Units.

xvi

Conformance to EC Directives

6

• Take appropriate measures to prevent foreign objects from entering the unit when mounting or wiring it. Failure to do so, may result in unit damage, electric shock or fire.

• Use crimp terminals for wiring. Do not connect bare stranded wires directly to terminals.

• Observe the following precautions when wiring the communication cable.

• Separate the communication cables from the power lines or high-tension lines.

• Do not bend the communication cables.

• Do not pull on the communication cables.

• Do not place heavy objects on top of the communication cables.

• Be sure to wire communication cable inside ducts.

• Use appropriate communication cables.

• Take appropriate measures to ensure that the specified power with the rated voltage and frequency is supplied in places where the power supply is unstable. An incorrect power supply may result in malfunction.

• Install external breakers and take other safety measures against short-circuits in external wiring. Insufficient safety measures against short-circuits may result in burning.

• Double-check all the wiring and switch settings before turning ON the power supply.

• When transporting or storing the product, cover the PCB’s with electrically conductive materials to prevent LSI’s and IC’s from being damaged by static electricity, and also keep the product within the specified storage temperature range.

• When transporting the Unit, use special packing boxes and protect it from being exposed to excessive vibration or impacts during transportation.

• Do not attempt to disassemble, repair, or modify any Units.

6 Conformance to EC Directives

6-1 Applicable Directives

• EMC Directives

• Low voltage directive

6-2 Concepts

OMRON units complying with EC Directives also conform to related product standards making them easier to incorporate in other units or machines. The actual products have been checked for conformity to product standards.

Whether the products conform to the standards in the system used by the customer, however, must be checked by the customer.

Product related performance of OMRON units complying with EC Directives will vary depending on the configuration, wiring, and other conditions of the equipment or control panel in which OMRON devices are installed. The customer must, therefore, perform final checks to confirm that units and the overall system conforms to product standards.

xvii

A Declaration of Conformity for the GRT1-PRT PROFIBUS Communication

Unit can be requested at your nearest OMRON representative.

6-3 Conformance to EC Directives

PROFIBUS units should be installed as follows, for the complete configuration to meet the EC directives:

1,2,3...

1.

The units are designed for installation inside control panels. All units must be installed within control panels.

2.

Use reinforced insulation or double insulation for the DC power supplies used for the communication power supply, internal circuit power supply, and the I/O power supplies.

3.

The GRT1-PRT PROFIBUS Communication Unit product meets the generic emission standard. However as EMC performance can vary in the final installation, additional measures may be required to meet the standards. It should therefore be verified that the overall machine or device also meets the relevant standards. You must therefore confirm that EC directives are met for the overall machine or device, particularly for the radiated emission requirement (10 m).

SECTION 1

Features and Specifications

This section provides an introductory overview of the GRT1 series SmartSlice I/O Units and the GRT1-PRT PROFIBUS,

Communication Unit, its functions and how to setup and configure it for a PROFIBUS network.

1-1 Overview of GRT1-Series SmartSlice I/O Units . . . . . . . . . . . . . . . . . . . . . .

1-2 GRT1-PRT PROFIBUS Communication Unit . . . . . . . . . . . . . . . . . . . . . . . .

1-2-1 Features. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1-2-2 System Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1-2-3 Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1-3 GRT1-PRT Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1-4 Basic Operating Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

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

1-4-2 Preparations for Use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2

3

3

4

5

7

9

9

10

1

Overview of GRT1-Series SmartSlice I/O Units

Section 1-1

1-1 Overview of GRT1-Series SmartSlice I/O Units

The GRT1-Series SmartSlice I/O Units are building-block style I/O devices, which can be expanded in small I/O increments. This provides the possibility to configure I/O systems which exactly match the various customer applications. SmartSlice I/O Units communicate with the PROFIBUS DP-V1 Master

Unit by remote I/O communication through a PROFIBUS Communication

Unit. The figure below shows a typical I/O configuration.

PROFIBUS DP-V1 Master Unit

PLC

Serial connection

(For setting, monitoring, and operating)

PROFIBUS

Slave

OMRON GRT1-PRT

4 5 6 4 5 6

0 0

3

4

1

2

DC24V

INPUT

GRT1-PRT PROFIBUS

Communication Unit

SmartSlice I/O

System

GRT1-Series SmartSlice

I/O Units

SmartSlice I/O Units

Up to 64 SmartSlice I/O Units can be connected to one PROFIBUS

Communication Unit (Up to 1,024 inputs or outputs can be connected)

SmartSlice I/O configurations can be very compact, consisting of only a few

I/O points, but they can also be extended, to up to 64 I/O slices. The slice configuration can also be subdivided over two or more blocks using local extension units and extension cables, as shown in the figure above.

The GRT1-Series of SmartSlice I/O Units and Communication Units is constantly being expanded with new Units. Refer to the latest revisions of the

GRT1 Series SmartSlice I/O Units Operation Manual (W455) and the GRT1-

DRT DeviceNet Communication Unit Operation Manual (W454) for currently available units in the GRT1-Series.

2

GRT1-PRT PROFIBUS Communication Unit

Section 1-2

1-2 GRT1-PRT PROFIBUS Communication Unit

1-2-1 Features

Manage Multiple

SmartSlice I/O Units as

One Slave

I/O Data Exchange

Simplified Startup

Simplified I/O Wiring

Table Registration

Communication Error Log

Monitor

Online Replacement of I/O

Units

Parameter Backup and

Restore

The GRT1-PRT PROFIBUS Communication Unit for SmartSlice I/O controls data exchange between the PROFIBUS DP-V1 Master and SmartSlice I/O

Units over the PROFIBUS DP network. For an overview of the PROFIBUS

technology refer to

Appendix A PROFIBUS Technology.

A single PROFIBUS Communication Unit with up to 64 connected SmartSlice

I/O Units can be managed as a single slave device from the PROFIBUS DP-

V1 Master.

Cyclic I/O data exchange is used to exchange I/O data between the PROFI-

BUS Master and SmartSlice I/O Units through the PROFIBUS Communication Unit. In addition to I/O data, various status information in the PROFIBUS

Communication Unit as well as in the individual I/O slices can be accessed from the PROFIBUS DP-V1 Master Unit.

The PROFIBUS Communication Unit can be set up easily, just by wiring the

Unit, setting the PROFIBUS station address on the Unit’s rotary switches, and making simple DIP switch settings.

The Unit’s configuration is read automatically when the power is turned ON and I/O is also automatically allocated in the SmartSlice I/O Units. It is not necessary to make any settings with a special Programming Device.

All of the SmartSlice I/O Units that connect to a PROFIBUS Communication

Unit are equipped with screw-less clamp terminal blocks. Wiring to external

I/O is accomplished just by inserting the wire into the terminals, eliminating the need to tighten terminal screws.

The configuration of the SmartSlice I/O Units (mounting order and I/O size) connected to a PROFIBUS Communication Unit can be registered in a table simply by switching a pin on the PROFIBUS Communication Unit’s DIP switch. Once the table has been registered, the actual configuration is compared to the registered configuration each time that the power is turned ON. If the configuration does not match, a status flag can be turned ON in the

PROFIBUS DP-V1 Master to indicate the error.

The communication error log in the PROFIBUS Communication Unit can record the four most recent communication errors in the PROFIBUS DP network and the 64 most recent SmartSlice I/O Unit errors. The communication error information (communication error cause code and communication power supply voltage when error occurred) can be read with an explicit message command or from the Configurator.

The SmartSlice I/O Unit’s circuit section can be removed, so it is not necessary to turn OFF the power to replace a Unit. Communication can be maintained in the remaining (connected) Units.

Before replacing a SmartSlice I/O Unit for maintenance, the parameter data set in the I/O Unit can be backed up in the PROFIBUS Communication Unit by switching a pin on the Communication Unit’s DIP switch. After the I/O Unit has been replaced, another DIP switch operation can be used to select the mode that automatically writes the backed-up parameter data to the appropriate Units.

3

GRT1-PRT PROFIBUS Communication Unit

Automatic Baud Rate

Recognition

Section 1-2

The PROFIBUS Communication Unit automatically detects the Master’s communication baud rate, so it is not necessary to set the baud rate. (If the Master’s baud rate has been changed, the PROFIBUS Communication Unit must be turned OFF and then ON again to change its baud rate.)

1-2-2 System Configuration

The PROFIBUS Communication Unit connects to the Master by a network cable and it connects to the SmartSlice I/O Units by directly coupling the Units with slide connectors.

I/O Data Exchange

Messaging Services

The I/O Unit data in the PROFIBUS Communication Unit is shared with the

Master’s Input and Output Areas through the PROFIBUS DP network. The I/O

Units’ data is collected in the PROFIBUS Communication Unit and exchanged with the Master asynchronously.

The GRT1-PRT PROFIBUS Communication Unit also supports messaging services, allowing the user to send acyclic message commands addressed to the GRT1-PRT Unit or individual SmartSlice I/O Units.

CS/CJ Series PROFIBUS DP-V1 Master Unit

Cx-PROFIBUS Configurator

Used to monitor operation and write parameters to the SmartSlice I/O Units or

PROFIBUS Communication Unit.

PLC

Remote I/O data is collected from the connected

SmartSlice I/O Units and exchanged with the Master Unit

GRT1-PRT PROFIBUS

Communication Unit

Serial connection

(For setting, monitoring, and operating)

PROFIBUS DP-V1

Acyclic messages

PROFIBUS

I/O data first goes to the

Communication Unit.

Slave

OMRON

GRT1-PRT

5 6 5 6

0 0

GRT1-TBR Right Turnback Unit

1

2

3

NC

ADR

4

/O

GCN2-100 Turnback Cable (1 m)

Up to 2 cables (2 m) can be used per Communication Unit.

SmartSlice I/O Units

GRT1-END End Unit

GRT1-TBL Left Turnback Unit

Up to 64 SmartSlice I/O Units can be connected to one PROFIBUS Communication Unit.

(Up to 1,024 inputs or outputs can be connected.)

Note

Always install an End Unit on the last I/O Unit in the system.

4

GRT1-PRT PROFIBUS Communication Unit

Section 1-2

1-2-3 Specifications

Functional Specifications

Item

Unit type

Model

Mounting position

Power supply

Current consumption

Dimensions (W x H x D)

Weight

Ambient operating temperature

Ambient operating humidity

Storage temperature

Vibration resistance

Specification

SmartSlice GRT1 series

GRT1-PRT

DIN Rail mounted

24 Vdc +10% -15% (20.4 to 26.4 Vdc)

103 mA (max), 90 mA typical at 24 Vdc

58 x 80 x 70mm

135g (typical)

–10 to 55

° C (no icing or condensation)

25% to 85% Relative Humidity

–20 to 65

° C (no icing or condensation)

10 to 57Hz, 0.7-mm amplitude

57 to 150Hz, acceleration: 49 m/s

2

150 m/s

2

500 VAC (between isolated circuits)

EN61131-2:2003

Shock resistance

Dielectric strength

Conformance to EMC and Electrical safety standards

Enclosure rating

Settings, rotary switches

Settings DIP-switches

Indicators

PROFIBUS Connector

Power connector

Number of connectable SmartSlice I/O

Units

Baud rate

Communication signal level

Communication distance

Turnback Cable

SmartSlice I/O Unit connections

Baseblock power supply

Event messaging

IP20

2 Slave address rotary switches, range: 0 ~ 99 (Decimal)

4 DIP-switches on the front of the Unit:

• Switch 1: Create / Enable Registration Table

• Switch 2: Not used.

• Switch 3: Automatic Restore

• Switch 4: Backup Trigger

6 LEDs, indicating Unit status, Slice I/O status and PROFIBUS status:

Unit status: RUN (Green LED)

ERR (Red LED)

UNIT PWR (Green LED)

SmartSlice I/O status: TS (Red/Green LED)

PROFIBUS status:

I/O PWR (Green LED)

BF (Red LED)

9-pin sub-D female connector (#4/40 UNC thread)

Screwless connectors. Unit power and I/O power are separated.

64 Units max.

Connected directly to the GRT1-PRT or via turnback extension units.

3 Mbps

RS-485

SmartSlice I/O Units: 64 Units coupled (about 2 m max.)

Turnback Cable: 2 m max. (2 cables, 1 m each)

Length 1 m max., up to 2 cables can be connected.

Building-block style configuration with slide connectors (Units connect with Turnback Cables).

Voltage: 24 V DC

Current: 4 A max

Supported.

5

GRT1-PRT PROFIBUS Communication Unit

Section 1-2

Protocol Specification

Item

Applicable standards

Protocol type supported

Specification

EN50170, Volume 2

PROFIBUS DP Extensions to EN50170 (DP-V1)

PROFIBUS DP

PROFIBUS DP-V1, Class 2

PROFIBUS DP-V1 Slave PROFIBUS Unit type

PROFIBUS Media type

PROFIBUS Connector

Unit device address range

RS-485, galvanically isolated from the PLC

9-pin sub-D female connector (#4/40 UNC thread)

Termination according to EN50170 provided by the cable connector

0 ~ 99, set through the rotary switches on the front baud rates supported Selectable through the configurator:

• 9.6 kbit/s

• 19.2 kbit/s

• 45.45 kbit/s

• 93.75 kbit/s

• 187 kbit/s

• 500 kbit/s

• 1.5 Mbit/s

• 3 Mbit/s

• 6 Mbit/s

• 12 Mbit/s

Master Class 1 - Slave cyclic services • Set_Prm

• Chk_Cfg

• Data_Exchange

• Slave_Diag

• Global-Control - SYNC / UNSYNC, FREEZE / UNFREEZE, CLEAR

• Get_Cfg

• Rd_Inp

• Rd_Outp

Master Class 1 - Slave acyclic services Not supported

Master Class 2 - Slave acyclic services MSAC2_Initiate

MSAC2_Read

Number of I/O module definitions

MSAC2_Write

MSAC2_Abort

65 max. over all configured slave devices

Number of I/O data

Number of diagnostics data

GSD file

128 bytes max. of Input data

128 bytes max. of output data

Up to 36 bytes max. of diagnostics

OC_098F.gsd

6

GRT1-PRT Configuration

External Dimensions (mm)

Section 1-3

OMRON

GRT1-PRT

4

5 6

4

5 6

0 0

3

4

1

2

-V

DC24V

INPUT

1.5

23.1

24.4

61.2

69.7

17.1

36.8

58

2.4

1-3 GRT1-PRT Configuration

PROFIBUS Configuration

Means

GRT1-PRT Configuration

DTM

The PROFIBUS DP Master Unit requires a configuration before it can exchange I/O data with any of its slave devices. For this configuration information on the slave device must be available. OMRON provides two means to facilitate Master Unit configuration.

• A GRT1-PRT DTM

• A GRT1-PRT GSD file

The GRT1-PRT DTM is an executable component, provided by OMRON, which requires an FDT Container program like OMRON’s Cx-Profibus (refer also to Appendix

A-9 FDT/DTM Technology). The DTM runs inside this FDT

Container and provides its own User Interfaces. It can access GRT1-PRT and

SmartSlice I/O Unit data through the PROFIBUS Master unit and present that to the user. It can also save the settings, using the features of the FDT Container program.

The GRT1-PRT DTM, provides the user with the following features.

• Parameter configuration

• I/O Configuration

• Configuration of individual SmartSlice I/O Units

• Monitoring of the SmartSlice I/O System

Note In order to configure individual SmartSlice I/O Units, the PROFIBUS Master

Unit must support PROFIBUS DP-V1, Class 2 functionality. The OMRON

CS1/CJ1W-PRM21 PROFIBUS Master Units support this functionality as of revision 3.

7

GRT1-PRT Configuration

GRT1-PRT Parameter

Configuration

GRT1-PRT I/O

Configuration

Monitoring the SmartSlice

I/O System

Configuration via GSD File

Third-Party Master Units

Downloading the

Configuration

Note

Section 1-3

The PROFIBUS Parameter User Interface allows the user to set operational parameters for the communication between the PROFIBUS Master and the

GRT1-PRT. The User Interface provides entries to set

• the device address (i.e. defining it for communication)

• the PROFIBUS group allocation for the GRT1-PRT.

• the FINS fragment length, used in acyclic communication.

• Specific PROFIBUS Master Unit behaviour with respect to this slave device.

The I/O Configuration User Interface allows the user to define the configuration of SmartSlice I/O Units attached to the PROFIBUS Communication Unit.

It also allows the user to make parameter settings for individual SmartSlice

I/O Units.

The I/O Configuration is used by the PROFIBUS Master Unit when mapping the I/O data of individual SmartSlice I/O Units on to the PLC memory areas. It is also sent by the PROFIBUS Master Unit to the GRT1-PRT for verification when establishing communication. The I/O Configuration sent by the Master

Unit must match the physical configuration attached to the GRT1-PRT

PROFIBUS Communication Unit, in order to proceed with I/O data exchange.

The Monitoring User Interfaces allows the user to read information from individual SmartSlice I/O Units. It also provides a means to read the Error Log of the GRT1-PRT PROFIBUS Communication Unit.

The GSD file concept is the older, and consequently more widely used means of configuration. The GSD file for the GRT1-PRT is a text based file, which contains all options required to configure a PROFIBUS Master Unit. The file can be loaded by the configuration software of the Master Units, which will then present the information to the user to allow the appropriate selections to be made.

The drawback of the GSD file is that- unlike the GRT1-PRT DTM - it only provides setting options for PROFIBUS DP and PROFIBUS DP-V1. The GSD file does not provide the means to initiate parameter data transfer via PROFIBUS

DP-V1 Class 2 messages. These have to be programmed in the Master Unit it self.

The GSD file for GRT1-PRT can be used to configure most third-party Master

Units. The GRT1-PRT GSD file contains all the necessary parameters to allow the user to configure the Master Unit for I/O data exchange.

1.

The GRT1-PRT DTM can also be used in third-party configuration software provided that this software supports the FDT/DTM concept.

2.

With the Cx-Profibus FDT Container OMRON also provides a Generic

Slave DTM, an FDT/DTM interface between the FDT Container program and GSD files. Alternatively, this DTM can be used to setup a Master Unit, using the GRT1-PRT GSD file. This Generic Slave DTM however, does not provide the means to initiate PROFIBUS DP-V1 messages.

After setting up the configuration, it must be downloaded to the PROFIBUS

Master Unit. The download process depends on the Master Unit used.

8

Basic Operating Procedure

Section 1-4

1-4 Basic Operating Procedure

1-4-1 Overview

The following diagram provides an overview of the installation procedures.

For experienced installation engineers, this may provide sufficient information. For others, cross-references are made to various sections of this manual where more explicit information is given.

Mount the GRT1-PRT PROFIBUS Unit and the SmartSlice I/O Units

(See section

2-2 Installing the GRT1-PRT

Unit)

Wire the GRT1-PRT PROFIBUS Unit and the

SmartSlice I/O Units

(See section

2-3 Wiring the GRT1-PRT)

Setup the PROFIBUS network

(See section

2-4 Setting up a PROFIBUS

Network)

Power up the GRT1-PRT and Perform initial setup (See section

3-3 Setup the GRT1-PRT

Configuration)

Configure the PROFIBUS DP Master Unit

(See section

3-3 Setup the GRT1-PRT

Configuration)

PROFIBUS DP starts communicating, confirmed by the COMM LED continuously lit. Check status of other LED Indicators (See section

3-4 Operating the Network)

9

Basic Operating Procedure

Section 1-4

1-4-2 Preparations for Use

The following procedure shows the basic steps required before using the

PROFIBUS Communication Unit and the SmartSlice I/O Units.

Initial Setup Procedure

1,2,3...

1.

Mount the GRT1-PRT Unit and the SmartSlice I/O system on the DIN rail

The maximum number of SmartSlice I/O Units can be 64.

2.

Wire the SmartSlice I/O Units and the GRT1-PRT Unit’s power supply.

3.

Wire the PROFIBUS network, to connect the Unit to the PROFIBUS Master Unit.

4.

Set the rotary switches on the front of the GRT1-PRT to the desired

PROFIBUS address.

5.

Turn ON the power to the Unit and the I/O.

6.

Turn ON (from OFF to ON) DIP switch 1 on the front of the PROFIBUS

Communication Unit. When switch 1 is turned ON, the existing SmartSlice

I/O Unit configuration (connection order and I/O size) is registered in the

PROFIBUS Communication Unit as a registered table. After the table is registered, leave pin 1 ON to enable the table.

Configuration Procedure

Note The next time the power is turned ON, the actual SmartSlice I/O Unit configuration at power on is automatically compared to the registered table. Any

SmartSlice I/O Units that do not match the registered table (connection order or I/O size) will not participate in I/O communication. I/O communication will start with the other SmartSlice I/O Units.

Use the following procedure to configure the PROFIBUS Master Unit for communication with the PROFIBUS Communication Unit, using the Cx-Profibus

FDT Container program and the GRT1-PRT DTM:

1,2,3...

1.

In Cx-Profibus, create a network and define the parameters and I/O configurations for the PROFIBUS Master Unit settings and the allocated slave devices. Determine the baud rate and the bus parameter setup. Make sure that the “Go to OPERATE mode “option is selected, to force the Unit to OP-

ERATE mode upon a PLC mode change to RUN / MONITOR mode.

2.

Download the network configuration to the PROFIBUS Master Unit. After downloading the configuration, Cx-Profibus will restart the PROFIBUS DP

Master Unit.

3.

After restarting the PROFIBUS DP Master Unit it will automatically start communication.

10

SECTION 2

Installation and Wiring

This section shows the GRT1-series PROFIBUS Communication Unit and identifies its controls and indicators. It contains the procedures for installing and wiring the Communication Unit as well as the GRT1-series SmartSlice I/O Units. It also contains the procedures for setting up the PROFIBUS network.

2-1 Unit Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2-1-1 Nomenclature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2-1-2 LED Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2-1-3 Switch Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2-1-4 Power Supply Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2-1-5 PROFIBUS Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2-2 Installing the GRT1-PRT Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2-2-1 Handling Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2-2-2 Installation on a DIN Rail. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2-2-3 Connecting the PROFIBUS Unit and SmartSlice I/O Units. . . . . . .

2-2-4 Connecting Additional SmartSlice I/O Units . . . . . . . . . . . . . . . . . .

2-3 Wiring the GRT1-PRT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2-3-1 Connecting the SmartSlice I/O System Power Supply. . . . . . . . . . .

2-3-2 Wiring Methods . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2-3-3 Connecting the Turnback Units . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2-4 Setting up a PROFIBUS Network. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2-4-1 Network Structure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2-4-2 Bus Termination . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2-4-3 PROFIBUS Cable Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2-4-4 Shielding Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2-5 Installation of Configuration Software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2-5-1 Installation Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2-5-2 Installation Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2-5-3 GRT1-PRT GSD File . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

12

12

12

13

15

15

16

16

16

18

18

20

20

21

23

24

24

26

27

27

28

28

28

29

11

Unit Components

Section 2-1

2-1 Unit Components

2-1-1 Nomenclature

The illustration below shows the Status LED indicators, the PROFIBUS address switches, and a 9-pin female sub-D connector on the front side of the

PROFIBUS Communication Unit. Each of these components are explained in the following sections.

Rotary switches

Set the Unit's address as a PROFIBUS

Slave. Set a decimal node address between

0 and 99.

PROFIBUS communications connector

Connect the PROFIBUS network's communications cable to this connector.

OMRON

GRT1-PRT

4

5 6

4

5 6

0 0

3

4

1

2

-V

DC24V

INPUT

Indicators

Refer to 2-1-1 LED Indicators for details.

DIP Switch

Sets the I/O allocation method and registers the I/O Unit configuration information.

SW1 (REGS): Create/enable registration table.

SW2 (NC): Not used, set to OFF

SW3 (ADR): Automatic restore

SW4 (BACK): Backup trigger

Unit power supply terminals

Connect the power supply for the Unit's internal circuits and the connected SmartSlice I/O Units' internal circuits.

I/O power supply terminals

Connect the power supply for the connected

SmartSlice I/O Units' external I/O.

2-1-2 LED Indicators

The GRT1-PRT PROFIBUS Communication Unit is fitted with six LED indicators to indicate the operational mode and status of the Unit and the PROFI-

BUS network.

Indicator Specifications

Indicator

RUN

Unit status

ERR

Unit error

Colour

Green

Red

Status

Not lit

Lit

Not lit

Meaning

• Startup test failed, Unit not operational.

• Operation stopped, due to a fatal error.

Initialization successful, Unit is in normal operation.

Unit is in normal operation.

Flashing A startup error has occurred

Lit • Fatal error in program execution.

• Error Log Read or Write occurred.

12

Unit Components

Section 2-1

BF

Indicator

PROFIBUS Failure

TS

SmartSlice I/O System communication status

UNIT PWR

I/O PWR

--

Colour

Red

Status

Not lit

Meaning

No PROFIBUS communication errors occurred. I/O Data Exchange is in progress.

Flashing The parameter settings sent by the PROFIBUS Master unit are invalid.

No I/O Data Exchange is possible.

Lit

Not Lit

No PROFIBUS communication has been detected by the Unit.

• Power not being supplied.

• Communication has not started with SmartSlice I/O Unit.

• Over current detected.

Green

Red

Green

Flashing SmartSlice I/O Unit added to the system (Flashing once every 1 s)

Backup/Restore function operating (Flashing once every 0.5 s)

• Restoring settings to SmartSlice I/O Unit, backup function operating.

• Downloading SmartSlice I/O Unit settings.

Lit Communication with SmartSlice I/O Unit established.

Flashing Non-fatal communication error occurred.

• Communication timeout

• Verification error occurred with registered table.

• Different model Unit detected after I/O Unit replacement.

Lit

Not Lit

Fatal communication error occurred.

Failure occurred while restoring settings to I/O Unit or downloading I/O

Unit settings (Lit for 2 s)

Power supply to the Unit is not present (All other LED indicators are also OFF).

Green

Lit

Not Lit

Lit

Power supply to the Unit is present.

Power supply to the SmartSlice I/O is not present. The SmartSlice I/O

Units may be operative, but no output is available.

Power supply to the SmartSlice I/O is present.

2-1-3 Switch Settings

Rotary Switches

3

4

5 6

7

1

0

9

3

4

5 6

7

1

0

9

Two rotary switches on the front of the GRT1-PRT, marked x10 and x1, are provided to set the PROFIBUS device address of the Unit. The address can be set in the range of 00 through 99 (decimal). The device address on the Unit must be the same as the address used in the master’s configuration. The device address is used to uniquely identify PROFIBUS Communication Unit on the PROFIBUS DP network. Selecting a non-unique address for the unit will prevent the unit from communicating properly with the Master unit.

In order to set the device address, perform the following steps.

1,2,3...

Note

1.

Turn OFF the power supply before setting the device address.

2.

Set the switch to the (new) device address. Use a small screwdriver to make the setting, taking care not to damage the rotary switch. The station address is factory-set to 0.

3.

Turn ON the power again.

1.

Always turn OFF the power to the Unit before changing the device address setting. The Unit only reads the address setting during the initialization following a power-up, i.e. any changes after power up will have no effect.

2.

The PROFIBUS Communication Unit detects the Master’s communication baud rate automatically. Setting the baud rate is not required.

13

Unit Components

DIP Switches

ON

1 REGS

2 NC

3 ADR

4 BACK

DIP Switch 1: REGS

Create / Enable

Registration Table

DIP Switch 2: NC

Not Used

DIP Switch 3: ADR

Automatic Restore

DIP Switch 4: BACK

Backup Trigger

Section 2-1

1

2

3

4

Four DIP switches on the front of the Unit are provided for operational settings. The factory setting is OFF for all DIP switches.

DIP switch Caption

REGS

NC

ADR

BACK

Description

Create / Enable Registration Table.

Not Used (Always OFF).

Automatic Restore.

Backup Trigger.

If DIP switch 1 is turned from OFF to ON while the Unit’s power is ON, the existing SmartSlice I/O Unit configuration (connection order and I/O size) is registered in the PROFIBUS Communication Unit as a registered table.

If DIP switch 1 is ON when the Unit’s power is turned ON, the actual Smart-

Slice I/O Unit configuration at startup is automatically compared to the registered table. Any SmartSlice I/O Units that do not match the registered table will not participate in SmartSlice I/O communication.

Switch setting

ON

OFF

OFF to ON

ON to OFF

Function

Registered table is enabled. (If there is a verification error, the affected Unit will not participate in communication.)

Registered table is disabled (All Units participate in communication).

Register I/O Unit table (Unit Power must be ON)

Clear registered I/O Unit table (Unit Power must be ON)

DIP switch 2, marked NC is not used and should always be set to OFF.

When DIP switch 1 is ON (registered table enabled) and DIP switch 3 is switched to ON, parameter data is automatically restored to the SmartSlice

I/O Units that had parameter data backed up.

Switch setting

ON

OFF

Function

Switch OFF to ON to start the parameter restore (when

DIP switch

1 is ON).

Automatic restore function disabled.

When DIP switch 1 is ON (registered table enabled) and DIP switch 4 is turned OFF to ON, the parameter data of all connected SmartSlice I/O Units is backed up in the Communication Unit.

1 s 1 s 1 s

ON OFF ON

The backup operation starts after DIP switch 4 is turned from ON to OFF to ON within 3 seconds.

Switch setting

ON

OFF

Function

Switch ON to OFF to ON to start the parameter backup (when

DIP switch

1 is ON).

---

Note It is recommended to leave DIP switches 1, 3 and 4 always ON.

14

Unit Components

Section 2-1

2-1-4 Power Supply Connector

The PROFIBUS Communication Unit provides two 24VDC power supply terminals on the front of the Unit.

Holes for wires

(pin terminals)

Release button

System Power supply terminals

24 VDC

External I/O Power supply terminals

24 VDC

Power supply terminals

Unit power supply terminals

I/O power supply terminals

Description

These terminals supply power to the PROFIBUS Communication

Unit’s internal circuits as well as the connected SmartSlice I/O

Units’ internal circuits (supplied through the SmartSlice bus).

These terminals supply power to the external I/O that is connected to the System’s SmartSlice I/O Units.

Note System Power supply and External I/O power supply are not transferred through the GCN2-100 Turnback cable. The GRT1-TBR units provide the same set of Power supply terminals as the PROFIBUS Communication Unit.

2-1-5 PROFIBUS Connector

The PROFIBUS connector on the font of the Unit is a 9-pin female sub-D connector, as recommended by the PROFIBUS standard EN50170.

9

6

5

1

Note

Pin No.

1

2

5

6

3

4

7

8

9

Signal

Shield

--

B-line

RTS

DGND

VP

--

A-line

-

Shield/protective ground

Description

Receive/Transmit data - plus (B wire)

Control signal for repeaters (direction control) (TTL)

Data ground (reference potential for VP)

Supply voltage of the terminator resistance (5 Vdc)

-

Receive/Transmit data - minus (A wire)

The signal RTS (TTL signal) is for the direction control of repeaters, which do not have a self-controlling capability.

The signals DGND and VP are used to power the bus terminator located in the cable connector.

1.

The orientation of the sub-D connector allows the use of PROFIBUS connectors with a 90° angle cable outlet, e.g ERNI, Delconec and Phoenix.

2.

The 9-pin sub-D connector uses #4/40 UNC thread for mechanical fixation of the cable connector. Make sure that if non-standard PROFIBUS connectors are used, the same thread is used on the cable connector.

3.

PROFIBUS DP Baud rate setting is accomplished through automatic detection, all the defined PROFIBUS DP baud rate values are supported.

15

Installing the GRT1-PRT Unit

Section 2-2

2-2 Installing the GRT1-PRT Unit

2-2-1 Handling Precautions

When installing the PROFIBUS Communication Unit and the SmartSlice I/O

Units, observe the following handling precautions

• Always turn OFF the power supply to the PROFIBUS Communication

Unit, the SmartSlice I/O Units and the external I/O, before mounting or dismounting a Unit or connecting or disconnecting cables.

• Do not connect or disconnect the PROFIBUS Communication Unit’s communication cable while the PROFIBUS network is operating. Short-circuits or poor contacts in the PROFIBUS cable may prevent normal communication.

• Ensure that the power supplies for the PROFIBUS Communication Unit and the SmartSlice I/O Units and the external I/O are wired correctly.

• Provide separate conduits or ducts for the I/O lines to prevent noise from high-tension lines or power lines.

The SmartSlice I/O system is installed and set up as a PROFIBUS DP-V1

Slave. The PROFIBUS Communication Unit’s communication connector connects to the Master Unit through a PROFIBUS communication cable. Up to 64

SmartSlice I/O Units can be connected to one GRT1-PRT Unit.

PROFIBUS

Master

PROFIBUS

Communication Unit

OMRON

GRT1-PRT

4 5 6 4 5 6

0 0

Slide SmartSlice I/O Units in from the front to install.

3

4

1

2

DC24V

INPUT

24 VDC for Unit

24 VDC for I/O

SmartSlice I/O Units (64 max.)

2-2-2 Installation on a DIN Rail

DIN Rail Installation

The GRT1-PRT and SmartSlice I/O Units must be mounted on a DIN Rail.

Attach the DIN Rail with screws in every fourth mounting hole.

PFP-50N (50 cm) or PFP-

100N (100 cm) DIN Rail

Attach the track with screws at a maximum spacing of 105 mm between adjacent screws.

16

Installing the GRT1-PRT Unit

SmartSlice I/O System

Orientation

Section 2-2

There is no restriction regarding orientation of the SmartSlice I/O System. The system can be mounted in any of the following 6 directions.

Installing a Unit

To install a PROFIBUS Communication Unit on the DIN Rail, press the Unit onto the DIN Track from the front. Press the Unit firmly until it clicks, indicating that the Unit’s DIN Rail Mounting Hooks have all locked onto the DIN Rail.

When the Unit is pushed onto the DIN Rail, verify that the Mounting Hooks have locked.

Removing a Unit

Mounting Hooks

Press firmly towards the DIN Ra

Press firmly until you hear a clic indicating that the Mounting Hoo have locked.

Use a standard screwdriver to release the DIN Rail Mounting Hooks at the top and bottom of the Unit and pull the Unit straight away from the DIN Rail.

17

Installing the GRT1-PRT Unit

Section 2-2

2-2-3 Connecting the PROFIBUS Unit and SmartSlice I/O Units

Connect the first SmartSlice I/O Unit to the PROFIBUS Communication Unit by aligning the sides of the Units and sliding in the SmartSlice I/O Unit from the front. Additional SmartSlice I/O Units can be connected consecutively to the first.

Slide the Slice I/O Unit toward the DIN Track from the front. Insert the Unit until you hear a click, which indicates that the Unit has locked on the Track

It is normally not necessary to release the DIN Track mounting hook when mounting the Unit.

Note

Do not touch the connector on the Unit’s base block.

2-2-4 Connecting Additional SmartSlice I/O Units

Connect additional SmartSlice I/O Units by aligning the sides of the Units and sliding in the next Unit from the front. Up to 64 SmartSlice I/O Units can be connected to one PROFIBUS Communication Unit.

Connecting Turnback

Units

Slide the Unit to the DIN Track from the front.

Insert the Unit until you hear a click, which indicates that the Unit has locked on the Track.

It is normally not necessary to release the DIN Track mounting hook when mounting the Unit.

When a SmartSlice I/O System is divided into blocks, connect a GRT1-TBR

Right Turnback Unit to the right end of the first block. Connect a GRT1-TBL

Left Turnback Unit to the left side of the expansion block and connect additional SmartSlice I/O Units. Use a GCN2-100 Turnback Cable to connect the

Turnback Units together.

18

Installing the GRT1-PRT Unit

Turnback Cable connectors

Section 2-2

Connecting the End

Unit

Note

GRT1-TBR Turnback Unit

(for right side of block)

GRT1-TBL Turnback Unit

(for left side of block)

The Turnback Units can be used to divide a SmartSlice I/O System into up to three blocks.

A GRT1-END End Unit must be connected at the end of the SmartSlice I/O

System.

Installing the End

Plates

GRT1-END End Unit

Always secure the SmartSlice I/O System on the DIN Rail by installing End

Plates on both sides of the System. First hook the bottom of the End Plate on the bottom edge of the DIN Rail (1), attach the top of the End Plate, and pull the End Plate down onto the top edge of the DIN Rail (2). Tighten the End

Plate’s securing screw.

End Plate End Unit

2

OMRON

GRT1-PRT

4

5 6

4

5 6

0 0

1

1

2

3

4

-V

DC24V

INPUT

End Plate

Note

Always secure the SmartSlice I/O System by attaching End Plates on both ends.

19

Wiring the GRT1-PRT

Section 2-3

2-3 Wiring the GRT1-PRT

2-3-1 Connecting the SmartSlice I/O System Power Supply

The PROFIBUS Communication Unit has two sets of power supply terminals for the following two systems.

Power supply terminals

Unit power supply terminals

I/O power supply terminals

Description

These terminals supply power to the PROFIBUS Communication Unit’s internal circuits as well as the connected Smart-

Slice I/O Units’ internal circuits (supplied through the

SmartSlice bus).

These terminals supply power to the external I/O that is connected to the System’s SmartSlice I/O Units.

Both the SmartSlice I/O System power supply and the external I/O power supply are connected with screwless clamping-type terminals.

Evaluating the Power

Supply Requirements

Unit Power Supply

1,2,3...

I/O Power Supply

Note

1,2,3...

Note

The maximum power consumption for SmartSlice I/O Units is 80 W per block.

1.

Calculate the power consumption of all of the SmartSlice I/O Units connected to the PROFIBUS Communication Unit. Refer to the GRT1 Series

SmartSlice I/O Units Operation Manual (W455) for the power value for each SmartSlice I/O Unit.

2.

If the power consumption exceeds 80 W, mount a Right Turnback Unit

(GRT1-TBR) on the SmartSlice I/O Unit at the point where the power consumption is less than 80 W.

3.

Connect the 24 VDC Unit power supply to the Left Turnback Unit (GRT1-

TBL).

1.

The GRT1-TBL is equipped with separate power supply terminals for the

Unit power supply and I/O power supply.

2.

When dividing the power supply, always wire (supply) the power from the same power supply (Refer to the

Wiring Example).

The maximum I/O current consumption is 4 A.

1.

Calculate the total current consumption used by all external I/O of the connected SmartSlice I/O Units (including other Units like Turnback Units).

Refer to the GRT1 Series SmartSlice I/O Units Operation Manual (W455) for the current value for each SmartSlice I/O Unit.

2.

If the current consumption exceeds 4 A or you want to provide separate systems for inputs and outputs, divide the SmartSlice I/O Units at the desired point with a GRT1-PD2 I/O Power Supply Unit and provide a separate external I/O power supply.

3.

It is also possible to provide a separate external I/O power supply at a Left

Turnback Unit (GRT1-TBL).

1.

The GRT1-TBL is equipped with separate power supply terminals for the

Unit power supply and I/O power supply.

2.

Always use isolated power supplies for the power supplies.

3.

Power is not supplied through the GCN2-100 Turnback Cable.

(Refer to the

Wiring Example.)

20

Wiring the GRT1-PRT

Section 2-3

Wiring Example

PROFIBUS

Communication Unit

CPU

GRT1-PD2 I/O Power Supply Unit

I/O

(IN)

I/O

(IN)

GRT1-TBR Turnback Unit (Right)

I/O

(OUT)

I/O

(OUT)

I/O

(OUT)

I/O

(OUT)

I/O

(OUT)

Connector

Do not exceed 80 W power consumption in one block.

I/O power supply

I/O power supply

Power is not supplied through the Turnback Cable.

I/O

(AD)

I/O

(AD)

I/O

(AD)

I/O

(AD)

I/O

(AD)

End Unit

Do not exceed 80 W power consumption in one block.

Connector

Power supply

(24 VDC)

I/O power supply

GRT1-TBL Turnback Unit (Left)

2-3-2 Wiring Methods

Supplying Power to the Units

Connect the power supply wires (24 VDC) to the PROFIBUS Communication

Unit’s screwless clamping power supply terminals. If pin terminals are used on the wire ends, the pin terminals can just be inserted to wire the power.

Holes for wires

(pin terminals)

Release button

Press the release button with a screwdriver and pull out the wire (pin terminal).

These terminals supply power to both the PROFIBUS Communication Unit's internal circuits and the connected

SmartSlice I/O Units' internal circuits.

24 VDC

Note

The GRT1-TBL Left Turnback Unit has the same screwless clamping power supply terminals as the PROFIBUS Communication Unit. These terminals are wired in the same way, by inserting the power supply wires.

21

Wiring the GRT1-PRT

Supplying I/O Power

Section 2-3

The power supply for I/O devices is supplied through the PROFIBUS Communication Unit’s screwless clamping power supply terminals. If pin terminals are used on the wire ends, the pin terminals can be inserted to wire the power.

Holes for wires

(pin terminals)

Release button

Press the release button with a screwdriver and pull out the wire (pin terminal).

Removing Wires

Note

These terminals supply power to the external I/O devices connected to the

SmartSlice I/O Units.

24 VDC

The GRT1-TBL Left Turnback Unit and GRT1-PD2 I/O Power Supply Unit have the same screwless clamping power supply terminals. These terminals are wired in the same way as the PROFIBUS Communication Unit’s terminals, by inserting the power supply wires.

To remove the wires press the release button above the terminal hole using a slotted precision screwdriver and pull out the wire.

Side view Front view

Slotted precision screwdriver

Recommended Power

Supplies

Recommended Wire

Strip Length

Pin Terminal Length

0.6 mm 3.5 mm

Recommended model: SZF1 (Phoenix Contact)

Release button

Use a SELV power supply with over current protection.

A SELV power supply has redundant or increased insulation between the I/O, an output voltage of 30 Vr.m.s and a 42.4-V peak or maximum of 60 VDC.

Recommended power supply: S82K-01524 (OMRON) or S8TS-06024

(OMRON).

Type

Stranded wire

Solid wire

Pin terminal

Gauge

20 AWG to 16 AWG

(0.5 to 1.25 mm

2

)

Strip wire between 7 and 10 mm of insulation at the ends of the wires

(stranded or solid wire) or use pin terminals with a pin (conductor) length of 8 to 10 mm.

Strip 7 to 10 mm.

Pin length: 8 to 10 mm

22

Wiring the GRT1-PRT

Section 2-3

2-3-3 Connecting the Turnback Units

When a SmartSlice I/O System is divided into blocks to expand the system, connect a GRT1-TBR Right Turnback Unit to the GRT1-TBL Left Turnback

Unit with a GCN2-100 Turnback Cable.

Note

Power is not supplied through the GCN2-100 Turnback Cable. Always wire

(supply) the power to the GRT1-TBL Left Turnback Unit from the same power supply that supplies the PROFIBUS Communication Unit.

Connect the Turnback Units with a Turnback Cable, as shown in the following diagram. A single PROFIBUS Communication Unit can be expanded with up to two additional blocks, connected with two Turnback Cables (2 m total).

GRT1-TBR Turnback Unit

OMRON

GRT1-PRT

5 6 5 6

0 0

1

2

3

4

NC

ADR

/O

GRT1-TBL Turnback Unit

GCN2-100 Turnback Cable

Insert the cable's connector fully until it clicks, which indicates that the connector's top and bottom latches have locked.

23

Setting up a PROFIBUS Network

Section 2-4

2-4 Setting up a PROFIBUS Network

2-4-1 Network Structure

Communication Medium

The PROFIBUS standard defines the use of EIA RS-485 as the main communication transport medium. The PROFIBUS DP Master Unit is designed to interface directly to this type of medium. This section will discuss the setup of networks based on this medium.

Linear Bus Topology

Repeaters

Note The other communication medium specified for PROFIBUS is optical fibre.

The PROFIBUS DP Master Units does not provide a direct interface to this type of medium. However, by using third party couplers an interface between

EIA RS-485 and optical fibre networks can be made.

PROFIBUS DP defines the use of the Linear Bus Network Topology. The Bus must be terminated at both ends, and must not contain network branches.

The total cable length of the bus depends on the cable and the selected baud rate. Also, RS-485 specifies a maximum of up to 32 devices - master and slave devices - per line segment. If more than 32 devices are to be connected, or if the total length of the segment must be extended beyond its maximum, repeaters must be used to link the separate segments.

Note Repeaters are devices which connect two segments. They do not have a device address of their own, but they do count in the total number of devices in a segment.

A maximum of up to three repeaters between two devices in a network can be used, i.e. a network can consist of up to 4 segments. The maximum number of PROFIBUS devices in such a network is then 122. The figure below shows an example of a two-segment network.

OMRON

SYSMAC CS1G

P R O G R A MMA B LE

C O N T R O LLE R

Termination

Station 1

Station 2 Station 3

Termination

Repeater

Termination

Station 31

Tree Topology

Termination

Station 63 Station 33 Station 32

The use of repeaters allows the extension of three or more Linear Bus segments into a Tree topology. In a tree topology more than three repeaters are allowed, provided that there are no more than three repeaters between any two devices in the network. The following figure presents an example of a network with more than three segments and repeaters.

24

Setting up a PROFIBUS Network

Section 2-4

M / S

Segment 1

Max. 31 stations

Segment 2

Max. 31 stations

M / S

R

Segment 3

Max. 28 stations

R

R

Segment 4

Max. 31 stations

M / S

R

Segment 5

Max. 30 stations

M / S

M / S

Cable Type

M / S

Master or slave station

R

Repeater

Termination

Max. total number of stations = 126

R

Segment 6

Max. 31 stations

M / S

The PROFIBUS standard EN 50170 specifies Type A shielded, twisted- pair cable as the recommended cable type for use in an RS-485 based PROFI-

BUS network. This cable type has the following characteristics:

Maximum PROFIBUS

Cable Length

Characteristic

Impedance

Capacitance per unit length

Loop resistance

Core diameter

Core cross section

Value

135 - 165 ohms

< 30 pF/m

110 ohms/km

0.64 mm

0.34 mm

2

Note The PROFIBUS standard EN 50170 also specifies a Type B cable with different cable characteristics. Use of Type B cable is no longer recommended.

The transmission speed defines the maximum advised cable distance or cable segment in metres before the use of a repeater is recommended. The cable lengths specified in the following table are based on PROFIBUS type A cable.

Stub Lines

Baud rate

(kbit/s)

9.6

19.2

45.45

93.75

187.5

Distance/segment

(m)

1200

1200

1200

1200

1000

Baud rate

(kbit/s)

500

1500

3000

6000

12000

Distance/segment

(m)

400

200

100

100

100

Note If network extension beyond the range of the advised cable length is required, the use of fibre optic cable to cross the larger distance should be considered.

Passive Stub lines (branches from the main line) should be avoided for data transmission speeds of more than 500 kbit/s. Except at end devices with termination, it is recommended to always use plug connectors that permit two

25

Setting up a PROFIBUS Network

Section 2-4

data cables to be connected directly to the plug. This method allows the bus connector to be plugged and unplugged at all times without interrupting data communication between other devices.

2-4-2 Bus Termination

Termination Resistors

VP

B-Line

A-Line

DGND

390 Ohm

220 Ohm

390 Ohm

Network

In order to minimize cable reflections and ensure a defined signal level on the data lines, the data transfer cable must be terminated at both ends with a terminating resistor combination. The bus termination diagram is shown on the left.

The bus terminator connects the two data lines via a 220 ohm resistor which, in turn, is connected to VP 5Vdc and DGND via two 390 ohm resistors. Powering the terminator resistor via VP 5V and DGND ensures a defined idle state potential on the data lines.

To ensure the correct functioning up to the highest baud rate, the bus cable must be terminated at both its ends.

A missing bus termination can cause errors during data transfer. Problems can also arise if too many bus terminators are fitted, since each bus terminator represents an electrical load and reduces the signal levels and thus the signal-to-noise ratio. Too many or missing bus terminators can also cause intermittent data transfer errors, particularly if the bus segment is operated close to the specified limits for maximum numbers of devices, maximum bus segment length and maximum data transfer rate.

Inductors

B-Line

A-Line

110 mH

110 mH

Network

In addition to the bus termination, additional precautions must be taken to ensure proper operation at high baud rates, i.e. baud rates of 500 kbit/s and higher. Due to the capacitive load of the device and the resulting cable reflections, bus connectors must be provided with built-in series inductors, of 110 mH each, as shown in the figure on the left.

Installing the inductors applies to all devices on the network, and not only to the devices at both ends of the bus cable.

26

Setting up a PROFIBUS Network

Section 2-4

2-4-3 PROFIBUS Cable Connector

Bus Cable Connector

From previous station

To next station

The plug connector to be used on the CS/CJ-series PROFIBUS DP Master

Unit is a 9-pin male sub-D type, preferably encased in metal and having a facility to connect the shield of the cable to the case or to pin 1. The cable should be connected to the receive / transmit lines, pin 3 (B-line) and pin 8 (Aline).

The use of special PROFIBUS DP cable connectors, which are available from several manufacturers, is highly recommended. Various models are widely available, with or without the bus termination and inductors built-in. If provided in the connector, the Bus termination can often be enabled or disabled through a switch on the connector.

The special PROFIBUS DP cable connectors often provide a convenient way of connecting the cables. The figure on the left, provides an example of such a bus cable connector.

A standard 9-pin sub-D plug can only be used if the PROFIBUS DP Master

Unit is not at the start or the end of a bus segment, or on a stub line at a baud rate of 500 kbit/s or less.

The two PROFIBUS data lines are designated A and B. There are no regulations on which cable core colour should be connected to which of the two data terminals on each PROFIBUS device; the sole requirement is to ensure that the same core colour is connected to the same terminal (A or B) for all devices throughout the entire system (across all devices and bus segments).

The PROFIBUS Organization recommends the following rule for data line colour codes: PROFIBUS cables in general will use the colours red and green for the data lines, with the following assignment:

• Data cable wire A - green

• Data cable wire B - red

This rule applies to both the incoming and the outgoing data lines.

2-4-4 Shielding Precautions

Cable Shield Connection

Inside cabinet

Ground Rail

Outside cabinet

To ensure electro-magnetic compatibility (EMC), the shield of the cable should be connected to the metal case of the plug connector.

If the Unit is installed in a control cabinet, the bus cable shield should be brought into physical contact with a grounding rail using a grounding clamp or similar device. The cable shield should continue in the cabinet right up to the

PROFIBUS device.

Ensure that the PLC and the control cabinet in which it is mounted have the same ground potential by providing a large-area metallic contact to ground, e.g. galvanized steel to ensure a good electrical connection. Grounding rails should not be attached to painted surfaces.

For further information regarding PROFIBUS network installation, please refer to “Installation Guideline for PROFIBUS DP/FMS” (PNO Order No. 2.112), which is available at every regional PROFIBUS Organization. The information covers:

• Commissioning of PROFIBUS equipment.

• Testing the PROFIBUS cable and bus connectors.

• Determining loop resistance.

• Testing for correct bus termination.

• Determining the segment length and cable route.

27

Installation of Configuration Software

Section 2-5

2-5 Installation of Configuration Software

In order to operate the GRT1-PRT and the SmartSlice I/O system the PROFI-

BUS DP Master needs to be configured for communication with the GRT1-

PRT. For this purpose OMRON provides the GRT1-PRT DTM via the

OMRON web site http://www.omron-industrial.com/

After installation the DTM will run in the OMRON Cx-Profibus FDT Container, allowing the user to setup the I/O configuration and setting the parameters of both the GRT1-PRT as well as individual SmartSlice I/O Units.

Note To fully utilize the features of the GRT1-PRT and the SmartSlice I/O system, a

PROFIBUS DP-V1 Class 2 capable Master Unit and DTM are required. The

OMRON CS1/CJ1W-PRM21 Master units provide this functionality as of version 3.0.

2-5-1 Installation Requirements

The following are the minimum requirements for a PC to install the GRT1-

PRT DTM configuration software:

• PC Pentium III or higher, 500 MHz minimum

• Operating System: Windows 2000 SP2 / Windows NT 4.0, SP6 /

Windows XP

• RAM:

• Hard disk space:

256 MB minimum

256 MB minimum

• Graphics resolution: 1024 x 768 pixels minimum

• Installed FDT Container software, e.g. OMRON’s Cx-Profibus.

2-5-2 Installation Procedure

DTM Installation

This section explains how to install the Cx-Profibus Configuration software and its components for the PROFIBUS Master Unit.

1,2,3...

1.

Exit all other Windows-based programs.

2.

Double-click the file GRT1PRT_SmartSlice_IO_Coupler_Setup.exe.

The setup program for the GRT1-PRT DTM will start. A progress dialog window is displayed, indicating progress of the setup as the program is loaded.

3.

The setup program will check the version of the CS1/CJ1W-PRM21

PROFIBUS Master DTM installed. Running the GRT1-PRT requires a

Master DTM version of 0.7.0.0. or higher. If this version is not installed, the following warning screen will pop up.

The appropriate version of the CS1/CJ1W-PRM21 Master DTM is available through OMRON’s web site. Pressing the OK button, will continue with installation.

28

Installation of Configuration Software

Section 2-5

4.

The user is then prompted to specify the installation directory.

Updating the Device

Catalogue

5.

Pressing the Next button will summarize the settings after which installation will commence.

6.

When done, the installation program will notify the user of its completion.

After installation of the GRT1-PRT DTM the Device Catalogue in the FDT

Container needs to be updated, to show the new GRT1-PRT DTM in the list of available devices. For Cx-Profibus the following procedure applies

1,2,3...

1.

Open the Device Catalogue window in Cx-Profibus.

2.

Press the Update button to initiate the update sequence.

After updating, the GRT1-PRT DTM will be shown in the list of available devices. It can now be used to setup a PROFIBUS network and configure the

Master Unit.

Note In case the required CS1/CJ1W-PRM21 PROFIBUS Master DTM has not been installed, this needs to be done first to allow the full features of the

GRT1-PRT DTM to be used.

2-5-3 GRT1-PRT GSD File

Apart from the GRT1-PRT DTM, OMRON provides a GSD file to allow configuration of third-party PROFIBUS Master Units, which do not provide an FDT

Container. The GSD file - OC_09FE.gsd - is available through the OMRON

Web site: http://www.omron-industrial.com/

Section

3-3-3 Setup Using the GSD File discusses configuration of the

PROFIBUS DP Master using this GSD file.

Note Using the GSD file for configuration allows the user to configure the Master

Unit for I/O data exchange with the GRT1-PRT and the SmartSlice I/O System. It does not however, provide the acyclic messaging capabilities to access parameters and status information in individual SmartSlice I/O Units.

The GRT1-PRT DTM does provide this capability.

The next section will discuss the features of the GRT1-PRT in detail as well as how to setup, configure and operate the SmartSlice I/O System in a

PROFIBUS network.

29

SECTION 3

Setup and Operation

This section describes the operational aspects of the GRT1-PRT and the SmartSlice I/O System. It first discusses the operational features which can be used, prior to describing how to setup the system and how to operate and monitor it on a

PROFIBUS network.

3-1 Station Address Settings and I/O Allocation . . . . . . . . . . . . . . . . . . . . . . . . .

3-1-1 Setting the PROFIBUS Station Address. . . . . . . . . . . . . . . . . . . . . .

3-1-2 SmartSlice I/O Unit Number Allocation . . . . . . . . . . . . . . . . . . . . .

3-1-3 SmartSlice I/O Allocation to the GRT1-PRT Unit . . . . . . . . . . . . . .

3-2 Unit Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-2-1 Table Registration Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-2-2 Backup Function. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-2-3 Automatic Restore Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-2-4 Online Replacement Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-2-5 I/O Communication Error History Monitor . . . . . . . . . . . . . . . . . . .

3-3 Setup the GRT1-PRT Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-3-1 Defining the PROFIBUS Network . . . . . . . . . . . . . . . . . . . . . . . . . .

3-3-2 Setup Using the DTM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-3-3 Setup Using the GSD File. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-3-4 Mapping I/O Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-4 Operating the Network . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-4-1 Monitoring the GRT1-PRT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-4-2 Monitoring the SmartSlice I/O System. . . . . . . . . . . . . . . . . . . . . . .

3-5 Remote Communication Characteristics. . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-5-1 I/O Communication Characteristics . . . . . . . . . . . . . . . . . . . . . . . . .

3-5-2 Message Communication Characteristics. . . . . . . . . . . . . . . . . . . . .

32

32

32

33

36

36

38

38

40

41

42

42

43

48

51

52

52

54

55

55

58

31

Station Address Settings and I/O Allocation

Section 3-1

3-1 Station Address Settings and I/O Allocation

In order to identify the PROFIBUS Communication Unit on the PROFIBUS network, it needs to be assigned a unique station address. Using this address the PROFIBUS Master Unit can transfer parameter settings and exchange I/O data. The PROFIBUS station address is assigned using the rotary switches on the front of the Unit.

Similarly, the individual SmartSlice I/O Units need a unique address to identify each of them to the GRT1-PRT Unit. Contrary to the GRT1-PRT Unit, the individual SmartSlice I/O Unit addresses are assigned automatically at startup.

3-1-1 Setting the PROFIBUS Station Address

The station address of the PROFIBUS Communication Unit Slave is set with the rotary switches on the front of the PROFIBUS Communication Unit.

PROFIBUS Station

Address Setting

The left rotary switch sets the ten's digit, and the right rotary switch sets the one's digit.

PROFIBUS station address setting

×10

×1

The valid address range is 00 to 99 can be set as long as this number is not set on another station (Master or Slave) in the network. However, the following must be observed.

!Caution In the messaging services the address 00 is reserved. This means that when selecting the GRT1-PRT Station address to be 0, it will be able to exchange

I/O data over PROFIBUS, but it will not be possible to upload / download parameters or status information.

Note

1.

Always turn OFF the PROFIBUS communication power supply and

PROFIBUS Communication Unit’s power supply before setting the station address.

2.

The factory default setting for the station address is 00.

3.

If the station address is duplicated on another station, communication will not be achieved.

3-1-2 SmartSlice I/O Unit Number Allocation

The SmartSlice I/O Unit numbers are used to identify the individual I/O Units in the SmartSlice system. These unit numbers are assigned automatically at startup, when the power is turned ON. The numbering starts from #1 and runs from left to right. It is not necessary for the user to set these numbers.

32

Station Address Settings and I/O Allocation

Section 3-1

The SmartSlice I/O unit numbers are assigned automatically in order, from left to right.

PROFIBUS

Communication Unit

I/O

#1

I/O

#2

I/O

#3

I/O

#4

I/O

#64

1.

The presence of Turnback units and cables does not influence the automatic allocation of Unit numbers.

2.

The unit numbers allocated automatically to the SmartSlice I/O Units are unrelated to the PROFIBUS station address set with the rotary switches.

3-1-3 SmartSlice I/O Allocation to the GRT1-PRT Unit

The SmartSlice I/O Units’ I/O data is mapped in the I/O memory of the GRT1-

PRT, from which it is transferred to the PROFIBUS Master unit. This allocation is done automatically and determined by the SmartSlice I/O Unit’s type. The figure below shows this mapping.

16

I/O memory

8

Order of allocation

D C B

A

0

(1) Communication Unit

(2) Each SmartSlice I/O Unit's I/O data.

E

(3) SmartSlice I/O Unit network participation status.

I/O Data is mapped in the order in which the Units are connected, from low to high.

I/O Units with bit allocation are mapped from the rightmost to leftmost bit, in 2-bit units.

I/O Units with word allocations are mapped from the low to high word address

A B C

D

E

Connected order

PROFIBUS

Communication

Unit

SmartSlice I/O Units

Note

1.

I/O data is mapped in the order of SmartSlice I/O Unit connection to the

PROFIBUS Communication Unit, regardless of the I/O Units’ models.

33

Station Address Settings and I/O Allocation

Section 3-1

2.

One block of mapped Output data (from the Master Unit) and one block of mapped Input data are maintained in the GRT1-PRT and transferred to/ from the Master Unit.

3.

The first Input data word always contains the SmartSlice I/O Status word.

4.

Bit-sized SmartSlice I/O Units, e.g. GRT1-ID4, GRT1-OD4 are grouped together in words.

5.

Word sized SmartSlice I/O Units, e.g. GRT1-AD2, GRT1-DA2V are mapped to one or more words.

6.

Total size of mapped I/O data can be 64 words output and 64 words input.

I/O Allocation Example

I/O data is mapped to the GRT1-PRT Units I/O data blocks in the same order the SmartSlice I/O Units are connected to the PROFIBUS Communication

Unit, regardless of the I/O Units’ models.

The example below shows the I/O data mapping to the Input / Output blocks.

Word

First word

15 8

Communication Unit status

+1

Unused #3 #2 #1

0

Input area

+2

+3

#4

Some areas may be unused when data is mapped.

Communication

Unit

#1

ID4

Note

#2

ID4

#3

ID4

#4

AD2

#5

OD4

#6

ROS2

Word

First word

15

Output area

Unused

8

#6 #5

0

I/O Units with bit allocation (e.g. GRT1-ID4/OD4) allocate data in 2-bit units.

I/O Units with word allocation (such as the GRT1-AD2) are allocated data in

1-word units. The following example shows the mapping of Output Units.

Communications

Unit

#1

OD4

SmartSlice I/O Unit configuration

#2

OD4

#3

OD4

#4

ROS

2

#5

OD4

#6

DA2V

Word

+0

+1

+2

+3

15

#5 #4

#3

8

Data is allocated in 2-bit units to I/O Units which require 4 bits,

There may be unused areas as shown in the following table.

0

#2 #1

Unused

#5

#6

34

Station Address Settings and I/O Allocation

Section 3-1

Allocated Data Size

Data type

I/O data (input and output)

Data size

64 input words max. or 64 output words max.

GRT1-ID4(-1) / GRT1-OD4(-1): 4 bits per Unit.

GRT1-ROS2: 2 bits.

GRT1-AD2: 1, 2 or 3 words I/O data.

GRT1-DA2V/DA2C: 2 words output data.

Communication Unit status flags 1 word

SmartSlice I/O Unit communication participating/withdrawn flags

I/O data (inputs) + Communication

Unit status flags

Participating flags: 4 words

Withdrawn flags: 4 words

Total: 8 words

Amount of I/O data being used + 1 word

Status Flags

There are two types of status flags

• Communication Unit’s status flags, transferred with the Input data.

• I/O Unit’s communication participating/withdrawn flags, obtained through messaging services.

Communication Unit’s

Status Flags

These flags can be used to monitor the status of the connection between the

GRT1-PRT and the SmartSlice I/O Units as well as the status of the Smart-

Slice I/O Units themselves. The status flags take up 1 word and the information is transferred to the Master as part of the Input data. The table below defines the individual bits in the Status word..

0

Bit Content

SmartSlice I/O Bus Communication Error

Flag

Description

Monitors the status of SmartSlice I/O System communication.

1

2

Reserved

SmartSlice I/O Unit Warning Flag

0: Normal

1: Error detected

3

4

5~11 Reserved

12 Unit Maintenance Flag

0: Normal

1: Error (monitor value reached)

13 Automatic Restore Monitor Flag

0: Restore successful

1: Restore failed

14

15

Reserved

SmartSlice I/O Unit Alarm Flag

0: Normal

1: Error detected

Communication Unit Error Flag

0: Normal

1: Error occurred

I/O Refreshing Flag

0: I/O communication stopped

1: I/O communication normal

---

Indicates a major SmartSlice I/O Unit error. This flag goes ON when there is an error in any one of the connected SmartSlice I/O Units.

---

Indicates a minor SmartSlice I/O Unit error. This flag goes ON when there is an error in any one of the connected SmartSlice I/O Units.

---

Monitors the Unit’s operating time the power ON time threshold set with the Unit power ON time monitor function.

Indicates whether or not the automatic parameter restoration to the

SmartSlice I/O Units was completed successfully.

This is the overall Unit status flag. This flag will be ON if any one of the other flags (bits 0 to 13) is ON.

Indicates whether I/O data is being exchanged normally.

35

Unit Functions

Section 3-2

3-2 Unit Functions

The following table lists the PROFIBUS Communication Unit’s functions.

Function name

Table registration

Backup

Summary

Reads the configuration of the SmartSlice I/O Units connected to the Communication Unit and registers that information in a table.

Records the parameter data of all connected I/O Units in the Communication Unit.

Setting/monitoring method

Set with DIP switch.

Set with DIP switch.

Automatic restore Automatically downloads the backed-up parameter data to the appropriate Unit.

Online replacement I/O Units can be replaced without turning the power OFF.

I/O communication error history

A history of communication errors with connected I/O Units can be collected in the Communication Unit.

Set with DIP switch.

No setting required.

Set/read with Configurator or explicit message.

3-2-1 Table Registration Function

Function Overview

This function registers the configuration of the SmartSlice I/O Units connected to the PROFIBUS Communication Unit in a table within the Unit, to allow the registered I/O table to be compared automatically with the actual configuration each time the power is turned ON. The configuration is registered by turning

ON (OFF to ON) DIP switch 1 of the PROFIBUS Communication Unit while the SmartSlice I/O Units’ power supply is ON. The registered table is enabled if DIP switch 1 is ON when the power is turned ON. If DIP switch 1 is OFF when the power is turned ON, the registered table is disabled and the Communication Unit will automatically detect the actual I/O configuration and start communication.

Creating a New

Registration Table

The SmartSlice I/O System’s actual I/O configuration can be read and registered in the table just by turning DIP switch pin 1 (REGS) from OFF to ON while the PROFIBUS Communication Unit’s power supply is ON. If the registration table is being refreshed, the old registration table will be erased.

Figure 1

4 contact inputs

4 contact inputs

4 contact outputs

2 relay outputs

Power ON

PROFIBUS

Communications

Unit

#1 #2 #3 #4

Turn pin 1 from

OFF to ON with the power ON.

Registration table

Reads the configuration information, creates the registration table, and records the table.

Note The configuration information records the order that the SmartSlice I/O Units are connected and the I/O size (input or output, number of bits) of each

SmartSlice I/O Unit. The I/O Unit model numbers are not recorded.

36

Unit Functions

Section 3-2

Comparison with the

Registered Table

When DIP switch pin 1 (REGS) is ON and an I/O configuration table has been registered in the Communication Unit, the actual I/O configuration is automatically compared to the registered table when the power is turned ON. A verification error will occur if a registered I/O Unit cannot join I/O communication or an unregistered I/O Unit is detected.

In case of verification errors, the affected SmartSlice I/O Units will not participate in I/O communication. I/O communication will start with the other Smart-

Slice I/O Units.

Example of Comparison between Figure 1 and Figure 2

From left

#1

#2

#3

#4

I/O

Input

Input

Output

Output

Bits

4

4

4

2

Registered table

Mismatch

From left

#1

#2

#3

#4

I/O

Input

Input

Output

Output

4

2

2

Bits

4

Actual configuration

Figure 2

Four contact inputs

Four contact inputs

Two relay outputs

Two relay outputs

PROFIBUS

Communications

Unit

#1

#2 #3 #4

Pin 1 ON when power was turned ON.

There are the same number of

Units, but the I/O data size does not match, so a verification error occurs and this I/O Unit does not participate in communications.

Registration table

Note

The actual configuration is compared to the registered table.

Units that do not match the registered table do not participate in I/O communications. I/O communications start with the other

I/O Units.

1.

Register the I/O configuration table when all of the SmartSlice I/O Units are communicating, i.e., when the PROFIBUS Communication Unit’s TS indicator is lit green.

2.

A mismatch (verification error) with the registered table is indicated at the

PROFIBUS Communication Unit’s TS indicator (flashing red). The error details can be retrieved using the GRT1-PRT DTM. Also, the error history can be read with an explicit message command.

37

Unit Functions

Section 3-2

3-2-2 Backup Function

Function Overview

The backup function records the parameter data of all SmartSlice I/O Units connected to the PROFIBUS Communication Unit. The parameter data recorded in the Communication Unit can be restored to the SmartSlice I/O

Units later with the automatic restore function when a SmartSlice I/O Unit has been replaced.

Power ON

PROFIBUS

Communications

Unit

#1

#2 #3 #4

Turn DIP switch 4 ON, OFF, and then ON again while the power is ON and DIP switch 1 is ON.

Downloads all of the I/O Units' unit information and parameter data.

Backup Procedure

1,2,3...

Note

1.

Verify that the power is ON, DIP switch 1 (REGS) is ON, and all of the

SmartSlice I/O Units are participating in I/O communication.

2.

Turn DIP switch 4 (BACK) ON, then OFF, and then ON again within 3 s to start the back up.

3.

While the data is being backed up, the PROFIBUS Communication Unit’s

TS indicator will flash green every 0.5 s. The TS indicator will stop flashing

(not lit) when the backup is completed. If the restore operation fails, the TS indicator will be lit red for 2 s.

1.

Do not turn OFF the power supply or reset the Configurator while data is being backed up. The data will not be backed up properly if the power is turned OFF.

2.

The backup data will be erased along with the registered I/O configuration table if DIP switch pin 1 (REGS) is turned OFF.

3.

Backing up the parameter data is recommended to allow easy replacement of faulty Units in the future.

3-2-3 Automatic Restore Function

Function Overview

When a SmartSlice I/O Unit has been replaced, this function will automatically download (restore) SmartSlice I/O Unit parameter data that was previously backed up in the PROFIBUS Communication Unit. The following conditions are required to execute the automatic restore function:

• DIP switch 1 (REGS) was ON when the power was turned ON, and the registered table is therefore enabled.

• DIP switch 3 (ADR) was ON when the power was turned ON, and the automatic restore function is therefore enabled.

• Parameter data has been backed up in the PROFIBUS Communication

Unit.

38

Unit Functions

Section 3-2

Power ON

PROFIBUS

Communications

Unit

#1

#2 #3 #4

DIP switch 1 was ON when power is turned ON and

DIP switch 3 is turned from

OFF to ON.

Parameter data

Parameter data is automatically restored only to the replacement Unit (same unit number, same model number, different serial number).

Preparing Data Restore

1,2,3...

1.

Create backup data in the Communication Unit with the backup function.

For details, see

3-2-2 Backup Function.

2.

Turn ON DIP switch 3 (ADR).

Replacing a Unit

1,2,3...

Note

1.

Turn OFF the SmartSlice I/O System’s power supply and the I/O power supply.

2.

Release the locks on the front of the SmartSlice I/O Unit that must be replaced and remove the terminal block. The wiring can remain connected.

3.

Remove the main block of the SmartSlice I/O Unit and replace it with a new

SmartSlice I/O Unit of the same type.

4.

Mount the terminal block that was removed in step 2 and latch the lock that was released.

5.

When the power is turned ON again, the Communication Unit will automatically detect the Unit that was replaced and download the backup data. The

SmartSlice I/O Unit’s TS indicator will indicate the results of the restore operation.

• If the download was successful, the Unit will be reset automatically and join I/O communication normally. The I/O Unit’s TS indicator will be lit green.

• If the download failed, the I/O Unit’s TS indicator will flash red.

• If the connected Unit is the wrong model, the I/O Unit’s TS indicator will be lit red.

1.

Do not turn OFF the power supply or reset the PROFIBUS Communication

Unit while data is being restored. The data will not be restored properly if the power is turned OFF.

2.

When an I/O Unit has been replaced with the power ON and the new I/O

Unit joins I/O communication, the new Unit will be compared to the previous one and the parameter data restore operation will start automatically.

While data is being restored, the PROFIBUS Communication Unit’s TS indicator will flash green every 0.5 s. The TS indicator will stop flashing (not lit) when the restore operation is completed. If the restore operation fails, the Automatic Restore Monitor Flag (bit 13 of the Communication Unit status flags) will be turned ON and the Communication Unit’s TS indicator will be lit red for 2 s.

39

Unit Functions

Section 3-2

3-2-4 Online Replacement Function

Function Overview

When one of the SmartSlice I/O Units connected to the PROFIBUS Communication Unit must be replaced, the Unit can be replaced without turning OFF the power. The Units can be replaced online because the SmartSlice I/O

Units are made up of 3 blocks: the base block, main block, and terminal block.

When replacing a SmartSlice I/O Unit, leave just the base block connected and replace the main block. I/O communication will continue with the other

I/O Units even while the problem Unit is being removed and replaced.

To keep the system online, leave the communications block connected.

PROFIBUS

Communications

Unit

#1

#2

#3

#4

Power ON

If DIP switches 1 and 3 are ON, data is automatically restored to the replaced Unit.

Unit bein replaced

Replacing a Unit

1,2,3...

Note

1.

Turn OFF the I/O power supply of the I/O Unit being replaced.

2.

Release the locks on the front of the I/O Unit that must be replaced and remove the terminal block. The wiring can remain connected.

3.

Remove the main block of the SmartSlice I/O Unit and replace it with a new

I/O Unit of the same type.

4.

Mount the terminal block that was removed in step 2 and latch the hook that was released.

5.

Turn ON the I/O power supply.

1.

When a Unit withdraws from I/O communication during replacement, the corresponding SmartSlice I/O Unit Communication Withdrawn Flag will go

ON and the PROFIBUS Communication Unit’s TS indicator will flash red.

2.

Before using the automatic restore function, the preparation for automatic restoration (creating backup data and turning ON DIP switch 3) must be completed. See

3-2-3 Automatic Restore Function for details.

3.

Always turn OFF the I/O Unit’s I/O power supply before replacement in order to prevent false output signals, false input signals, and electrical shocks. In addition, if external power is supplied to the terminal block for a

Unit such as a Relay Output Unit, turn OFF that power supply before replacing the Unit.

4.

Only replace one I/O Unit at a time.

5.

Always replace the I/O Unit with the same model of I/O Unit. If a Unit is replaced with a different model, there may be unexpected outputs and the restore operation may not be completed properly.

6.

If the base block is faulty or damaged, turn OFF the power supply and replace the entire Unit. Even in this case, the I/O Unit’s parameter data will be restored automatically if the automatic restore function is enabled when the power is turned ON.

40

Unit Functions

Section 3-2

3-2-5 I/O Communication Error History Monitor

Function Overview

The PROFIBUS Communication Unit can record the 64 most recent internal

SmartSlice Communication Unit errors in the Unit’s error history. When more than 64 errors occur, the oldest entry is deleted to make space for the newest error entry. The communication error history can be read from the GRT1-PRT

DTM or via messaging services.

PROFIBUS Network

Status when communications error occurred

PROFIBUS

Communication Unit

Error log recorded in Slave.

1st error

64th error

Checking Using the

GRT1-PRT DTM

1,2,3...

What happened to cause a communications error?

To check the internal communication error history using the GRT1-PRT DTM and OMRON’s FDT Container Cx-Profibus, perform the following actions.

1.

Turn ON the PROFIBUS Communication Unit's power supply.

2.

In Cx-Profibus right click the mouse over the icon of the GRT1-PRT, and select Diagnosis.

3.

Select the I/O Unit Error History Tab in the Diagnosis Window. The communication error history for the most recent errors that occurred will be displayed, as shown in the following window. To display the most recent error history, click the Update Button.

Note The method described is also available in third party FDT Containers, although slightly different terminology may be used in the menus.

41

Setup the GRT1-PRT Configuration

Section 3-3

3-3 Setup the GRT1-PRT Configuration

Setting up a PROFIBUS Master Unit to exchange parameters and I/O data with the GRT1-PRT and the SmartSlice I/O System involves defining the I/O configuration to the Master Unit and to set parameters needed at run-time.

Refer to

Appendix A PROFIBUS Technology for more information on PROFI-

BUS network commissioning.

This section discusses the methods of configuration.

3-3-1 Defining the PROFIBUS Network

Defining the PROFIBUS network in the Cx-Profibus FDT Container, starts with defining the PROFIBUS Master Unit and assigning the slave devices to it.

Defining and assigning devices can be achieved using drag & drop from the

Cx-Profibus Device Catalogue. Refer to the CS/CJ-series PROFIBUS DP

Master Units Operation Manual (W409) for more information on how to assemble a network. The figure below shows Cx-Profibus with an assembled network in the left window pane and the Device Catalogue opened in the main window pane.

42

To define the I/O Configuration of the GRT1-PRT SmartSlice Communication

Unit, double-click the device in the Network view using the left mouse button.

A separate configuration window will pop up, which is described in the next section.

Setup the GRT1-PRT Configuration

Section 3-3

3-3-2 Setup Using the DTM

GRT1-PRT DTM window which pops up after double-clicking the GRT1-PRT entry in the Network View is shown below.

Note The buttons on the bottom will be enabled only when the DTM is on-line.

Parameter Area Tab

PROFIBUS Settings Box

Station Address Setting

The Parameter Area Tab, shown above, defines the parameter settings for the

GRT1-PRT. In this Tab are two distinct sub areas of parameters.

• PROFIBUS Settings Box

• Extensions Box

The PROFIBUS Settings Box contains

• the Station address,

• the Watchdog Control settings,

• the Group Selection

• the FINS Fragment length.

The Station Address is automatically assigned by the Master DTM. Only change this setting if the physical device has a different address from the one assigned by the Master DTM. The allowable range is 00 to 99.

!Caution It is recommended not to use address 00, since in that case the messaging services will not work. Address 00 is reserved for Master Units.

Watchdog Control Setting

The Watchdog Control check box allows Enable/Disable of the Communication watchdog. If the Watchdog has been enabled, the GRT1-PRT will revert to a safe state, in case the PROFIBUS communication stops. The Watchdog will be Enabled by default, and it is recommended to leave it Enabled.

Note The Watchdog timeout Interval is defined by the PROFIBUS Master DTM and depends on the Bus parameters as well as on the total amount of Slave devices on the network.

43

Setup the GRT1-PRT Configuration

Group Setting

FINS Fragment Length

Setting

Extensions Box

Auto-Clear Processing

Section 3-3

The Group Setting selects to which of 8 groups the GRT1-PRT will belong.

This setting allows the user to control input and output data on specific groups of devices using the broadcast command. Refer to Appendix

A-4 Bus Access

Protocol for more information on the broadcast command.

The FINS Fragment Length determines the maximum fragment size used on messaging services, when being wrapped in to PROFIBUS messages. The default setting is 72 bytes. It is recommended not to change it.

The Extensions Box contains a number of settings, which define additional behaviour of the PROFIBUS Master Unit with respect to the GRT1-PRT. This specific behaviour is defined in the PROFIBUS DP extensions standard

(PROFIBUS DP-V1), but it does not necessarily require PROFIBUS DP-V1 capabilities from the PROFIBUS Master Units.

The Auto-Clear processing box defines whether or not the PROFIBUS Master

Unit should ignore a failure of the GRT1-PRT, when Auto-CLEAR has been enabled in the Master Unit (Refer to Appendix

A-6 Protection Mechanisms for

more information on Auto-CLEAR). When Ignore Auto-CLEAR has been selected, a failure of the GRT1-PRT (i.e. it requests new parameters, or fails to respond) will not activate the Auto-CLEAR mode. The Master Unit will however, service the slave device.

This feature can be used in case failure during operation, does not necessitate to switch the entire network to Auto-CLEAR mode.

Configuration Data

Convention

Control

Process Auto-CLEAR

Ignore Auto-CLEAR

Description

When Auto-CLEAR has been enabled in the PROFIBUS

Master Unit, a failure of the GRT1-PRT will cause an

Auto-CLEAR event.

When Auto-CLEAR has been enabled in the PROFIBUS

Master Unit, a failure of the GRT1-PRT will not cause an

Auto-CLEAR event. The Master will however service the

GRT1-PRT Unit (e.g. send new parameters).

The Configuration Data Convention setting defines how the GRT1-PRT will handle the special identifier format data parts of the Check I/O configuration message. The GRT1-PRT can perform the check either according to the original PROFIBUS DP standard, or according to the PROFIBUS DP-V1 standard. This allows the GRT1-PRT to use either standard PROFIBUS DP data types or extended PROFIBUS DP-V1 data types.

Error on Cyclic Data

Exchange

Control

DPV1 Compliant

EN50170 Compliant

Description

The Check I/O configuration message will contain PROFI-

BUS DP-V1 Data type definitions in the special identifier format data parts and the GRT1-PRT will perform the check on this assumption.

The Check I/O configuration message will contain standard PROFIBUS DP Data type definitions as well as vendor specific data types and the GRT1-PRT will perform the check on this assumption.

The Error on Cyclic Data Exchange settings box, defines the behaviour of the

PROFIBUS Master Units on the PROFIBUS network with respect to the

GRT1-PRT, in case it fails to respond during I/O data exchange. Depending on the setting, the Master Unit will either continue sending I/O data exchange messages to the slave device, or abort I/O data exchange, and continue with requesting the GRT1-PRT Unit’s diagnostics data. When continuing sending I/

O data exchange data, the Unit’s diagnostics data will not be updated.

44

Setup the GRT1-PRT Configuration

Section 3-3

Control

Continue if slave not responding

Abort if slave not responding

Description

The PROFIBUS Master Unit will continue to send I/O data exchange messages, when the GRT1-PRT device fails to respond. The diagnostics data of the GRT1-PRT will not be updated.

The PROFIBUS Master Unit will abort the data exchange with the GRT1-PRT Unit, and continue to send diagnostics request messages to the GRT1-PRT, until it responds.

The diagnostics data of the GRT1-PRT will be updated accordingly.

Note A failure of the GRT1-PRT during I/O data exchange will always be reported to the CS1/CJ1 PLC CPU. If Auto-CLEAR has been enabled, the failure to respond will result in the PROFIBUS Master Unit switching to CLEAR mode.

Diagnostics Update Delay

The Diagnostics Update Delay defines the number of PROFIBUS DP cycles during which the PROFIBUS Master Unit will ignore diagnostics message returned from the GRT1-PRT containing the Prm_Req flag. During the Diagnostics Update Delay period the PROFIBUS Master Unit will continue requesting its diagnostics data.

I/O Module Tab

The I/O Module Tab, shown below, defines the I/O Configuration for the

GRT1-PRT. This I/O Configuration is downloaded to the PROFIBUS Master

Unit and sent to the physical device by the Master Unit for verification at the start of communication.

Selecting the I/O

Configuration

The I/O Configuration can be selected using the following procedure.

1,2,3...

1.

Select the first row and double-click it using the left mouse button. A dropdown list will appear (see figure below).

2.

From the drop-down list select the type of slice which is in this first slot, right next to the GRT1-PRT.

3.

Select the next slot and repeat steps 1 and 2.

45

Setup the GRT1-PRT Configuration

Section 3-3

46

Note

1.

Not shown in the list is the first input word, containing the GRT1-PRT Unit status word (refer to section

3-1-3 SmartSlice I/O Allocation to the GRT1-

PRT Unit for an explanation on this word). The GRT1-PRT DTM automat-

ically adds the status word to the I/O Configuration.

2.

The sequence of I/O devices selected in the I/O Module Tab must match the sequence of physical devices attached to the GRT1-PRT. Otherwise

I/O Communication will not be achieved.

3.

The I/O Mapping of bit-sized SmartSlice I/O data in to distinct words is performed automatically by the GRT1-PRT.

As an alternative to selecting the I/O Configuration manually, the complete I/O

Configuration can be downloaded from the GRT1-PRT Unit. To accomplish this, perform the following steps.

1,2,3...

1.

In the Network view, select the GRT1-PRT and right-click the mouse.

2.

From the context menu, which pops up, select the option Go Online.

3.

Press the Upload button. This will initiate an upload of all SmartSlice I/O

Information, i.e. I/O Configuration, Unit types and Unit parameters. From this upload, the I/O Configuration in the Configuration list will be assembled automatically.

Note Uploading may take some time, due to the amount of parameters.

Setup the GRT1-PRT Configuration

Editing SmartSlice I/O Unit

Settings

1,2,3...

Section 3-3

After making the I/O configuration selection, the settings of individual Smart-

Slice I/O Units can be set or changed. To do this, perform the following steps.

1.

Select the SmartSlice I/O Unit in the I/O Configuration.

2.

Press the Edit button below the I/O Configuration list. The appropriate setting window will pop up (see for example below).

Using the On-Line

Functions

Upload Button

Download Button

Compare Button

Note

1.

In order to download/upload settings for individual SmartSlice I/O Units, the DTM has to be on-line with the Physical GRT1-PRT Unit, i.e. it has to be able to establish a connection with the device.

2.

In the case of the GRT1-AD2 some parameter settings will affect the I/O

Configuration, i.e. it will change the I/O size for that particular SmartSlice

I/O Unit. In that case, the I/O Configuration for the PROFIBUS Master Units needs to be (re-)downloaded. If this is required, an appropriate warning window will pop up.

3.

The configuration options and windows for individual SmartSlice I/O Units are described in detail in GRT1 Series SmartSlice I/O Units Operation

Manual (W455)

At the bottom of the GRT1-PRT DTM are four buttons which will be Enabled after the DTM has established communication with the physical device (via the PROFIBUS Master Unit). Switching to on-line must be done via the FDT

Container. To switch to on-line, perform the following steps in Cx-Profibus.

1,2,3...

1.

In the Network view, select the GRT1-PRT and right-click the mouse.

2.

From the context menu, which pops up, select the option Go Online.

The buttons functions are discussed below.

Pressing the Upload button will initiate an upload of all SmartSlice I/O Information, i.e. I/O Configuration, Unit types and Unit parameters. From this upload, the I/O Configuration in the Configuration list will be assembled.

Note Uploading may take some time, due to the amount of parameters.

Pressing the Download button will initiate a download of all SmartSlice I/O

Information, i.e. I/O Configuration, Unit types and Unit parameters.

Pressing the Compare button will initiate a comparison between the I/O Configuration and parameters of all SmartSlice I/O Units and the data stored

47

Setup the GRT1-PRT Configuration

Reset Button

Section 3-3

within the DTM. In case a mismatch is found, a warning screen will pop up to notify the user.

Pressing the Reset button will initiate a system reset, i.e. the GRT1-PRT as well as the attached SmartSlice I/O Units will be reset. A Reset will also force the connected SmartSlice I/O Units to restore their settings from their non-volatile storage. In some cases a reset is a necessity to force the SmartSlice I/O

Units to use newly written parameters.

Note If changes have been made via the SmartSlice I/O Unit’s parameter windows, which require a system reset, the user is notified of this through a pop notification window.

3-3-3 Setup Using the GSD File

In case third-party Master Units are used, of which the Configuration software does not support FDT/DTM technology, the GRT1-PRT GSD File can be used to configure that master.

Note

1.

Using the GSD File allows for I/O Configuration and I/O data exchange with the Master unit. It does not provide easy access to other Unit parameters.

2.

CS1/CJ1W-PRM21 PROFIBUS Master units can also be configured using the GSD File, although the DTM is available and has many more features.

The figure below shows the Generic Slave DTM, used in Cx-Profibus to handle GSD Files.

48

Setup the GRT1-PRT Configuration

Defining the I/O

Configuration

Example

Section 3-3

To define the I/O configuration, perform the following steps.

1,2,3...

1.

First select the COM status module (top of the list of available modules) by selecting and double-clicking the mouse using the left button. This module must always be selected first.

2.

Next select the individual I/O modules in the same sequence as they are physically connected to the GRT1-PRT. Observe the following.

• Digital Units occupy 2 or 4 bits of I/O data. Adjacent digital Input Units or Output Units must be assembled in to 1 word.

• To assemble multiple Digital Units, first select the appropriate Unit listed in the available Modules list, which is not marked with a asterisk.This will indicate the start of a new word. For the subsequent units the I/O modules marked with an asterisk must be selected until a word has been filled up.

• When using digital input (or output) units after an analog input (or output unit), a new word has to be allocated. Select a module which is not marked with an asterisk

• After a word has been filled up, a new word must be started by selecting again the next I/O module not marked with an asterisk.

• Do not attempt to put Input Units and Output Units in one and the same word. This will result in a parameterization error, after downloading the configuration to the Master Unit.

• Analog Units (e.g. GRT1-AD2 or GRT1-DA2V) occupy 1, 2 or 3 words.

To further explain the mapping sequence, an example is given below.

To illustrate how the Digital and Analog SmartSlice I/O Units are mapped on to I/O words, and how to implement this using the GSD File, consider the table below:

SmartSlice Unit

GRT1-PRT

GRT1-ID4

GRT1-ID4

GRT1-OD4

GRT1-ROS2

GRT1-ID4

GRT1-AD2

Selected I/O Module

COM Status

GRT1-ID4

GRT1-ID4 *

GRT1-OD4

GRT1-ROS2 *

GRT1-ID4 *

GRT1-AD2

(I: Analog Data) Default

I/O Word/Bit

Input Word #1

Input Word #2 / Bit 0 ~ 3

Input Word #2 / Bit 4 ~ 7

Output Word #1, Bit 0 ~ 3

Output Word #1, Bit 4~ 5

Input Word #2 / Bit 8~ 11

Input Word #3 and #4

The table above lists the physical configuration in the left most column, the I/O

Module selected for from the list of available I/O modules in the middle and the I/O words on to which the modules are mapped in the right-most column.

49

Setup the GRT1-PRT Configuration

Section 3-3

Word #1

15

Word #2

Word #3

Word #4

The figure below further illustrates the I/O Configuration selection.

Input Words

0

Selected I/O

Modules

Output Words

15

COM Status

GRT1-ID4

GRT1-ID4 *

GRT1-OD4

GRT1-ROS2 *

GRT1-ID4 *

GRT1-AD2 (I: Analog Input) Default

0

Word #1

Setting Parameters

Parameter Tab

Group Tab

Extension Tab

DPV1 Tab

After selecting the I/O Configuration additional parameter settings can be made in the other tabs. These tabs will not be shown here, as they are similar to the settings explained in the previous section.

The Parameter Tab contains the setting for the FINS Fragment Length (See

FINS Fragment Length Setting on page 44).

The Group Tab allows setting of the Group selections (See

Group Setting on page 44).

The Extension Tab contains the Auto-CLEAR, Configuration Data Convention, and the Error on Cyclic Data Exchange settings (See

Auto-Clear Processing

on page 44, and further).

The DPV1 Tab contains settings related to DPV1.

!Caution In the Generic Slave DTM, DPV1 Tab, the DPV1 Enable check box is enabled by default. For the GRT1-PRT this must be disabled. The GRT1-PRT only supports PROFIBUS DP-V1 Class 2 messages. If the flag has not been disabled, I/O data exchange will not be achieved.

For more information on using the Generic Slave DTM, refer to the CS1/CJ1

PROFIBUS Master unit Operation Manual (W409).

50

Setup the GRT1-PRT Configuration

Section 3-3

3-3-4 Mapping I/O Data

The I/O Configuration can now be mapped on to the PROFIBUS Master Unit.

The CS1/CJ1W-PRM21 PROFIBUS Master Unit provides a means to map individual I/O Configuration modules to specific memory areas.

For information on how to map the I/O data on to the PLC memory, refer to the

CS1/CJ1 PROFIBUS Master unit Operation Manual (W409).

Example

As an example, the I/O mapping of the I/O Configuration made using the

Generic Slave DTM is shown in the window below.

The window above shows the SmartSlice I/O Input data, mapped on to CIO

3305 to 3308. The first row indicates the COM Status word, the second row indicates the GRT1-ID Units, the third and fourth rows indicate the GRT1-AD2

Input data.

After setting up the I/O Configuration, it needs to be downloaded to the Master

Unit, which is described in the CS1/CJ1 PROFIBUS Master unit Operation

Manual (W409). After download, the Master Unit needs to be switched to

OPERATE mode, in order for it to start establishing communication.

51

Operating the Network

Section 3-4

3-4 Operating the Network

After network commissioning has been finished and there is communication between the PROFIBUS Master Unit and the GRT1-PRT, the GRT1-PRT

DTM’s additional features to monitor status can be used.

Switching the DTM to On-

Line

To use these features, the GRT1-PRT must be on-line, i.e. the DTM must establish communication with the physical device (via the PROFIBUS Master

Unit). Switching to on-line must be done via the FDT Container. To switch to on-line, perform the following steps in Cx-Profibus.

Monitoring Features

1,2,3...

1.

In the Network view, select the GRT1-PRT and right-click the mouse.

2.

From the context menu, which pops up, select the option Go Online.

There are two types of Monitoring information

• PROFIBUS and SmartSlice I/O communication status

• SmartSlice I/O Unit status

3-4-1 Monitoring the GRT1-PRT

To access status information on the PROFIBUS and SmartSlice I/O communication, perform the following steps.

Example

1,2,3...

1.

Select the GRT1-PRT in the Network View and right click the mouse.

2.

From the context menu, which pops up, select the Diagnosis option.

Note Only one GRT1-PRT can be monitored at a time. Opening two or more DTMs in monitoring mode may not function properly.

A window will pop up showing PROFIBUS diagnostics information in the upper half of the window and SmartSlice I/O Communication in the lower half of the window. An example is shown below.

52

Operating the Network

PROFIBUS

Communication Status

SmartSlice I/O

Communication status

Example

Section 3-4

The colour of the LED indicators in the window indicate either error (Red) or a status (Green). The PROFIBUS Communication status LED indicators represent the status bits in the GRT1-PRT Diagnostics message sent to the

PROFIBUS Master Unit. Refer to

Appendix B Slave Diagnostics Message for

information on individual bit flags. In the example above, the GRT1-PRT has rejected the I/O Configuration because of a mismatch between the configuration provided by the PROFIBUS Master Unit and the physical SmartSlice I/O

Unit configuration.

The GRT1-PRT is also requesting new parameter data from the Master Unit.

The lower half of the window shown above contains status LED indicators, which indicate the communication status of individual SmartSlice I/O Units.

The LED indicators can have four colours.

Colour

Grey

Description

Grey LED indicators do not take part in communication and have also not been configured.

Green Green LED indicators indicate correct I/O communication. There are no problems with the associated SmartSlice I/O Unit.

Orange Orange LED indicators indicate that there is a SmartSlice I/O Unit present, but it is not the type, which was configured through the PROFI-

BUS DTM.

Red Red LED indicators indicate a configured slot in which however no

SmartSlice Unit is present.

The example above shows that the SmartSlice I/O Unit is slot 9 is different from the one that was configured. Consequently, the GRT1-PRT rejects the

I/O Configuration, since it does not match the physical configuration.

The window below shows another example, in which two slices which were configured are not present. The GRT1-PRT still accepts the I/O Configuration and performs data exchange over PROFIBUS.

53

Operating the Network

Section 3-4

3-4-2 Monitoring the SmartSlice I/O System

Individual SmartSlice I/O Units can also be monitored through the PROFIBUS connection. This data can be retrieved through the I/O Module Tab and the

I/O Error History Tab of the Diagnosis window.

SmartSlice I/O Status

When selecting the I/O Module Tab, the window as shown below will show up.

I/O Unit Error History

In case an on-line connection to the GRT1-PRT is open, the View button will be enabled. Selecting a SmartSlice I/O Unit and pressing the View button will open a status window for the selected SmartSlice I/O Unit. This information is described in detail in the SmartSlice GRT1 Series Slice I/O Units Operation

Manual (W455).

The I/O Unit Error History can be monitored, when selecting the I/O Unit Error

History Tab. This window has also been described in section

3-2-5 I/O Com-

munication Error History Monitor.

54

Remote Communication Characteristics

Section 3-5

3-5 Remote Communication Characteristics

3-5-1 I/O Communication Characteristics

This section describes the characteristics of PROFIBUS I/O communication between a GRT1-PRT and an OMRON Master. Use this section for reference when planning operations that require precise I/O timing.

The equations provided here are valid under the following conditions:

• All of the required Slaves are participating in communication.

• No errors are being indicated at the Master Unit.

• No third-party Master or Configurator is being used in the network.

I/O Response Time

Minimum I/O Response

Time

Note This manual describes the communication with the SmartSlice I/O System only. For details on the Master Unit or overall PROFIBUS network, refer to the

CS/CJ-series PROFIBUS DP Master Units Operation Manual (W409).

The I/O response time is the time it takes from the reception of an input signal at an Input Unit in the SmartSlice I/O System to the output on an Output Unit in the SmartSlice I/O System after being processed by the PLC program.

The minimum I/O response time (T

MIN

) is the total of the following terms:

T

MIN

= T

IN

+ T

SL-IN

+ T

SL-CI

+ T

RT-IN

+ (T

PLC

- T

RF

) + T

RT-OUT

+ T

SL-CI

+ T

SL-OUT

+ T

OUT

T

RF

T

PLC

PLC

PROFIBUS

Communications Unit

SmartSlice bus

Input Unit

T

IN

T

T

T T

T

T

Output Unit

T

OUT

Note

T

IN

: The Input Unit's ON (OFF) delay

T

OUT

: The Output Unit's ON (OFF) delay

T

SL-IN

: The SmartSlice bus' communication time (input data)

T

SL-OUT

: The SmartSlice bus' communication time (output data)

T

SL-CI

: The SmartSlice Communication Unit’s input data processing time

T

SL-CO

: The SmartSlice Communication Unit’s output data processing time

T

RT-IN

: The Input Slave's communication time/Slave

T

RT-OUT

: The Output Slave's communication time/Slave

T

RT

: The PROFIBUS communication time/Slave

T

PLC

: The PLC's cycle time

T

RF

: The PLC's PROFIBUS Unit refresh time

Refer to the GRT1 Series SmartSlice I/O Units Operation Manual for details on Input Unit’s input delay times and Output Unit’s output delay times.

55

Remote Communication Characteristics

Maximum I/O Response

Time

PLC

Section 3-5

The maximum I/O response time (T

MAX

) is the total of the following terms:

T

MAX

= T

IN

+ 2×T

SL

+ T

SL-CI

+ T

SL-CO

+ 2×T

RM

+ 2×T

PLC

+ T

RF

+ T

OUT

T

RF

T

PLC T

RF

T

PLC

T

RF

T

PLC

PROFIBUS T

RM

T

RM

Communications Unit

SmartSlice bus

Input Unit T

IN

T

SL

T

SL-CI

Output Unit

PROFIBUS

Communication Cycle

Time (T

RM

)

Refresh Time (T

C200HS PLCs

RF

)

Note

Master Units for CS, CJ,

C200HX/HG/HE (-Z), and

Note

T

T

SL

T

OUT

T

IN

: The Input Unit's ON (OFF) delay

T

OUT

: The Output Unit's ON (OFF) delay

T

SL

: The SmartSlice bus communication cycle time

T

SL-CI

: The SmartSlice Communication Unit’s input data processing time

T

SL-CO

: The SmartSlice Communication Unit’s output data processing time

T

RM

: The entire PROFIBUS communication cycle

T

PLC

: The PLC's cycle time

T

RF

: The PLC's PROFIBUS Unit refresh time

Refer to the GRT1 Series SmartSlice I/O Units Operation Manual for details on Input Unit’s input delay times and Output Unit’s output delay times.

The PROFIBUS communication cycle time is the time from the completion of a Slave's remote I/O communication processing until remote I/O communication with the same Slave are processed again. The communication cycle time is used to calculate the maximum I/O response time.

The communication cycle time (T

RM

) is defined by the Bus parameter settings for the PROFIBUS Master Unit (Refer to the CS/CJ-series PROFIBUS DP

Master Units Operation Manual).

The refresh time is the time required to exchange I/O data between the PLC's

CPU Unit and the PROFIBUS Master Unit. The PLC's cycle time is increased when a Master Unit is mounted, as shown below.

When a Master Unit is mounted to the PLC, the PLC's cycle time (I/O refreshing) is increased by the amount shown in the following table.

PROFIBUS Master unit

CS1/CJ1W-PRM21

C200HW-PRM21

I/O Refresh processing time

0.7 + 0.001 × number of words (ms) (See note 1)

• For C200HX/HG/HE (-Z) PLCs:

1.72 + 0.022 × number of words (ms) (See note 1)

• For C200HS PLCs:

2.27 + 0.077 × number of words (ms) (See note 1)

1.

The number of words refreshed is the total number of words in the I/O Area allocated to the Slaves, including any unused words between the allocated words. For example, if there are only two Input Slaves with station addresses 1 and 5, the 5 input words for stations 1 through 5 would be refreshed even though the input words for stations 2, 3, and 4 are unused.

56

Remote Communication Characteristics

Slice Bus Communication

Cycle Time (T

SL

)

Section 3-5

2.

If message communication is being performed, add the number of words used in message communication to the above number of words for whenever messages are being processed.

3.

Refer to the PLC's operation manual for more details on the refresh time and the PLC's cycle time.

The SmartSlice bus communication cycle time is the delay in the SmartSlice

I/O System from the end of communication with one I/O Unit until the start of communication with the next Unit.

The PROFIBUS Communication Unit processing time is the time required for software processing in the Communication Unit.

Communication Unit

Processing Time

(T

SL-CI

and T

SL-CO

)

Slice Bus Communication

Time

(T

SL-IN

and T

SL-OUT

)

Example

The Slice bus communication time is the time required to communicate with an Input Unit (T

SL-IN

) or Output Unit (T

SL-OUT

) in the SmartSlice I/O System.

T

SL

, T

SL-CI

, T

SL-CO

, T

SL-IN

and T

SL-OUT

strongly depend on the number of

SmartSlice I/O Units as well as on the amount of I/O data per SmartSlice I/O

Unit. The examples below present an indicative measure for the time required to process PROFIBUS output data.

The image below shows the GRT1-PRT DTM with a typical SmartSlice I/O

Unit configuration.

All Unit functions set by DIP switches (see section

3-2 Unit Functions) on the

GRT1-PRT PROFIBUS Communication Unit are enabled (recommended setting) and the PROFIBUS communication is being operated at 1500 kbit/s. The approximate minimum and maximum time intervals from PROFIBUS output data to be received by the GRT1-PRT and the intended output signal to be present on the output terminal is shown below for various configurations.

SmartSlice Configuration

Minimum (one GRT1-OD4-1 and one GRT1-ID4-1)

Typical (See image above)

Maximum (64 digital SmartSlice I/O Units)

min [ms]

0.6

1.4

3.4

max [ms]

2.2

4.4

11

57

Remote Communication Characteristics

Note

Section 3-5

1.

The processing time required for an input signal on an input terminal to be transferred to a PROFIBUS input data message is of the same order of magnitude as the numbers presented above.

2.

Setting the DIP switches to OFF, will extend the processing time with an approximate 2 ms.

3-5-2 Message Communication Characteristics

The message communication time is the time required for a message sent to the SmartSlice I/O System to travel over the Network and arrive at the Smart-

Slice I/O Unit. (The message may be data from a SEND(090)/RECV(098) instruction or a FINS command from a CMND(490)/IOWR(223) instruction.)

Communication Time to the PROFIBUS

Communication Unit

The time required for a message to be sent is the same as the PROFIBUS cycle time, since the acyclic message are sent at the end of a cycle, prior to the next one.

Communication Time to the SmartSlice I/O Unit

If a SmartSlice I/O Unit is the final message destination, the message communication time over the SmartSlice bus must be added to calculate the total message communication time. Use the following equation to calculate the message communication time over the Slice bus.

Message communication time = T

SL

× Number of frames

Number of frames = Number of message bytes ÷ 30 (round up fractions)

Note

1.

If the CPU Unit attempts to send another message or receives a message from another station before the message communication time has finished, the response message being sent or the message being received from another station may be destroyed. Always perform message communication at intervals longer than the message communication time and use message instructions (SEND(090), RECV(098), CMND(490), and IO-

WR(223)). Never send messages to any one station at intervals less than the message communication time.

If send or receive messages are destroyed, the error record will be placed in the error history of the Master Unit. If an error occurs, read the error history using the FINS command or monitor the error history from the Configurator.

2.

The above equations provide find the approximate message communication time, but not the maximum time. The message communication time will depend on the frequency of the message communication, the load on the remote station, the communication cycle time, and other factors. For any one Master Unit, the message communication time may be greatly increased due to heavy loads.

58

SECTION 4

Troubleshooting and Maintenance

This section describes the troubleshooting procedures and maintenance operations for the PROFIBUS Communication

Unit, needed to keep the PROFIBUS network optimally working.

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

4-2 Troubleshooting using the LED Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . .

4-2-1 Power Supply Errors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4-2-2 Unit System Errors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4-2-3 SmartSlice I/O System Errors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4-2-4 PROFIBUS Errors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4-3 Other Errors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4-3-1 Troubleshooting SmartSlice I/O Communication . . . . . . . . . . . . . .

4-3-2 Troubleshooting Profibus Communication. . . . . . . . . . . . . . . . . . . .

4-3-3 SmartSlice I/O Unit Error History . . . . . . . . . . . . . . . . . . . . . . . . . .

4-4 Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4-4-1 Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4-4-2 Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4-5 Replacing the Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4-5-1 Replacement Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4-5-2 Setting the Unit after Replacement. . . . . . . . . . . . . . . . . . . . . . . . . .

60

60

61

62

62

63

64

64

65

67

69

69

69

70

70

70

59

Overview

4-1 Overview

Section 4-1

Troubleshooting on the

GRT1-PRT Unit

The PROFIBUS Communication Unit and the Configuration DTM provide extensive means for troubleshooting, which can be used to quickly determine errors in the Unit, in the SmartSlice I/O configuration, and/or in the network.

For troubleshooting purposes, the following error indicators can be used:

• LED indicators on the front of the Unit

Three red error LED indicators and four status LED indicators show Unit and SmartSlice I/O system status and errors.

• The Error Log collects error codes for various error events. The Error Log can be retrieved using the GRT1-PRT DTM.

• PROFIBUS errors

DP-V1 commands provide defined response codes, which can indicate specific errors.

This section provides a number of procedures for troubleshooting, based on the error indicators listed above.

4-2 Troubleshooting using the LED Indicators

The figure below shows the available LED indicators on the PROFIBUS Communication Unit and on the SmartSlice I/O system attached to it. The GRT1-

PRT and the SmartSlice I/O Units are operating normally when all of the LED indicators are lit green.

RUN LED: Indicates the status of the PROFIBUS Communication Unit.

ERR LED: Indicates the status of PROFIBUS Communication Unit.

BF LED: Indicates the status of the PROFIBUS Communication

TS LED: Indicates the status of the SmartSlice I/O System.

UNIT PWR: Indicates the status of the Unit power supply.

I/O PWR: Indicates the status of the I/O power supply.

TS LEDs: Indicate the status of each SmartSlice I/O Unit.

OMRON

GRT1-PRT

4

5 6

4

5 6

0 0

3

4

1

2

-V

DC24V

INPUT

Note Not shown in the figure above is a Turnback Unit. The Turnback Unit also provides I/O PWR, UNIT PWR and TS LED Indicators.

The LED indicators can be used to determine the following categories of errors

• Power errors

• Startup errors

• SmartSlice I/O Unit errors

• PROFIBUS errors

60

Troubleshooting using the LED Indicators

Section 4-2

4-2-1 Power Supply Errors

Errors in the Power supply of the Unit or the external I/O are indicated by the

UNIT PWR and I/O PWR LED Indicators.

Troubleshooting UNIT

Power

The UNIT PWR LED Indicator shows whether or not sufficient power is supplied to the PROFIBUS Communication Unit and the SmartSlice I/O Units in order for them to startup and operate properly. A UNIT PWR LED Indicator is provided on the following Units:

• GRT1-PRT PROFIBUS Communication Unit

• GRT1-TBL Left Turnback Unit

The table below shows the LED Indicator options.

Unit Power Error

UNIT

PWR

Probable cause Correction

Not lit No Power or not enough power is being supplied to the Units (See note)

• Check whether power is supplied to the Unit Power

Connector.

• Check that the supplied power is with in the required range, i.e. 24 Vdc +10% -15% (20.4 to

26.4 Vdc).

Flashing

Lit

The Unit power supply capacity is insufficient. • Check the entire SmartSlice I/O System’s power supply requirement and replace the power supply with one that has sufficient capacity.

No Unit power error. The correct power is supplied to the System.

Troubleshooting I/O

Power

Note The PROFIBUS Communication Unit can startup on less power than specified. If this happens, the UNIT PWR LED Indicator may be OFF, whereas other LED Indicators may indicate correct operation. In this situation however, correct operation of the whole SmartSlice I/O System is not guaranteed.

The I/O PWR LED Indicator shows whether or not sufficient power is supplied to the External I/O Power lines to the SmartSlice I/O Units in order for them to drive the external Outputs on the individual Units.I/O slices. A I/O PWR LED

Indicator is provided on the following Units:

• GRT1-PRT PROFIBUS Communication Unit

• GRT1-TBL Left Turnback Unit

• GRT1-PD2 I/O Power Supply Unit

The table below shows the LED Indicator options.

I/O Power Error

I/O PWR

Not lit

Lit

Probable cause

No Power or not enough power is being supplied to the External I/O of the SmartSlice I/O Units

Correction

• Check whether power is supplied to the I/O Power

Connector on the GRT1-PRT, the GRT1-TBL or the

GRT1-PD2 Unit.

• Check that the supplied power is with in the required range, i.e. 24 Vdc +10% -15% (20.4 to

26.4 Vdc).

No I/O power error. The correct power is supplied to the External I/O System.

61

Troubleshooting using the LED Indicators

Section 4-2

4-2-2 Unit System Errors

If power supply to the Unit and the SmartSlice I/O Units is correct, the Unit will start initialization at power up. During the Initialization process the RUN LED indicator will remain OFF. Once the initialization has been completed correctly, the RUN LED indicator will be ON.

The table below indicates the states which can occur during startup and operation of the Unit.

RUN

Not Lit

Lit

Lit

ERR Probable cause

Not Lit

Lit

Unit is initializing

Flashing Unit has encountered a fatal system error during initialization and is unable to continue.

The Unit has been initialised, but encountered fatal error during Operation.

Not Lit The Unit is Operational. No errors encountered.

Not a valid combination.

--

Replace the Unit.

Correction

Restart the Unit. If the problem persists, replace the Unit.

4-2-3 SmartSlice I/O System Errors

If power supply to the Unit is correct and the Unit has initialized correctly, problems in the SmartSlice I/O system can be determined using the TS LED indicators on the PROFIBUS Communication Unit as well on the individual

SmartSlice I/O Units. When lit or flashing, the TS LED indicator can be either

Green or Red.

The tables below lists the TS LED indicator options.

Communication Unit

TS

Not Lit

Flashing

(1 Hz)

Colour

---

Green

Red

Flashing

(2 Hz)

Green

Probable cause

Power is not being supplied to the Unit.

Joining SmartSlice I/O Units to network.

There is a possible break in the connection between individual slices, or one of the Smart-

Slice sockets has not been connected properly to its left neighboring connector.

The TS LED Indicator on all correctly connected slices are flashing, whereas the TS LED Indicators on the non-correct Units are Not Lit (OFF).

The End Unit is not (properly) attached. Smart-

Slice Communication does not start up.

The TS LED Indicator on all SmartSlice I/O Units slices are flashing.

Correction

Refer to section

4-2-1 Power Supply Errors.

Wait until the SmartSlice I/O Units have been added to the network.

Check the connection between slices at the point where the first Unit is located with its TS LED

Indicator OFF.

Ensure that all slices are connected correctly to each other.

Check the End Unit connection and ensure that it is correctly connected to the SmartSlice system.

SmartSlice bus communication error occurred.

Check whether the SmartSlice I/O System’s base block is connected properly.

When the registration table function is enabled, the actual configuration does not match the registered configuration.

Correct the configuration and turn the power ON again.

The total number of I/O points in the SmartSlice

I/O Systems exceeds the maximum.

Correct the Unit configuration and number of I/O points and turn the power ON again.

Restore operation in progress

Backup operation in progress

Wait until the restore operation is completed.

Wait until the backup operation is completed.

62

Troubleshooting using the LED Indicators

Section 4-2

Lit

TS Colour

Red

Green

Probable cause

Backup operation failed (See Note).

Restore operation failed (See Note).

Correction

Backup the data again.

Reinstall the Unit in which the data was being restored and turn the power ON again.

SmartSlice I/O Unit configuration error occurred. Check the following items.

The Slice bus is operating normally.

• Are more than 64 I/O Units connected?

• Are more than 128 bytes of I/O data being used?

• Has the I/O configuration changed since the I/O configuration table was registered?

---

SmartSlice I/O Unit

TS

Not Lit

Flashing

(1 Hz)

Flashing

(2 Hz)

Lit

--

Colour

Red

Green

Red

Probable cause

Power is not being supplied to the Unit.

Communication error occurred.

Restore operation in progress

Backup operation in progress

Unit hardware failure

Green

Note Backup/Restore Operation failed: TS LED Indicator will be Lit for 2 seconds.

SmartSlice I/O Unit operating normally.

Correction

Refer to section

4-2-1 Power Supply Errors.

Check whether the connector is inserted properly.

Wait until the restore operation is completed.

Wait until the backup operation is completed.

Turn the power OFF and then ON again.

Replace the Unit if the error recurs.

---

4-2-4 PROFIBUS Errors

If power supply to the Unit is correct and the Communication Unit and the

SmartSlice I/O Units are operating correctly, problems in the PROFIBUS Connection can be determined using the BF LED indicator (Bus Fail) on the

PROFIBUS Communication Unit. The tables below lists the BF LED options.

BF

Not lit

Flashing The PROFIBUS configuration is not correct. There is however communication with Master Unit.

Lit

Probable cause

The PROFIBUS configuration is not correct. There is

NO communication with master.

Correction

No PROFIBUS Communication error encountered. The Unit is exchanging I/O data with the Master Unit.

• Check the configuration and the parameter data of the slave (See Note 1).

• Verify that the first selected I/O module is the “COM status” Module (see Note 2).

• Verify that the selected configuration matches the physical slice configuration attached to the PROFI-

BUS Communication Unit.

• Verify the Profibus allocation of the SmartSlice I/O

Unit is according the description. Check the Profi-

bus Diagnostics. Please refer to

Appendix B Slave

Diagnostics Message.

• Verify that the Unit has the same station address as in the master's configuration.

• Verify that no station address is used twice.

• Verify that the Master Unit is ON-LINE.

63

Other Errors

Section 4-3

Lit

BF Probable cause

The PROFIBUS wiring is not correct.

The PROFIBUS network has not been terminated correctly.

Correction

• Verify that the correct pins of the BUS connector are connected.

• Verify that there are no short circuits or line interruptions,

• Verify that the correct cable type is used,

• Verify that the stub lines are not too long. See

2-4-1

Network Structure).

Terminate the network at the appropriate places. See

2-4-2 Bus Termination).

Note

1.

If two or more SmartSlice I/O Units do not match with the PROFIBUS I/O configuration, the diagnostics message will only contain the error flags of the first mismatching SmartSlice I/O Unit.

2.

Selecting the COM Status module applies to the use of the GSD file in third-party Configuration software. When using the GRT1-PRT DTM within an FDT container, the COM Status module is selected automatically, and remains hidden to the user.

4-3 Other Errors

4-3-1 Troubleshooting SmartSlice I/O Communication

This section deals with troubleshooting the SmartSlice I/O communication on the network from a behaviour point of view. The column on the left describes the general perceived problem to the user. The columns on the right list the possible causes and their remedies.

Problem

The Communication Unit’s

Unit Power LED is flashing.

Probable cause

The Unit power supply capacity is insufficient.

The I/O Unit repeatedly checks LEDs (TS LED flashing green and red).

The Communication Unit’s

TS LED intermittently flashes green. The TS LED of the I/O Units in front of the bad connection light green, while the TS LED of the I/O Units behind the bad connection are OFF.

The slide connector on the left side of the affected Unit is not connected properly.

Communications

Unit Indicator

LED Indicator

Correction

Check the entire SmartSlice I/O System’s power supply requirement and replace the power supply with one that has sufficient capacity.

Connect this slide connector properly and turn the power ON again.

I/O Unit Indicator

Not lit (OFF)

The Communication Unit’s

TS LED flashes green and the I/O Unit’s TS LED is

ON.

The End Unit is not connected properly.

Communications

Unit Indicator

I/O Unit Indicator

Bad connection

Connect the End Unit properly and turn the power ON again.

LED Indicators

Bad connection

64

Other Errors

Section 4-3

4-3-2 Troubleshooting Profibus Communication

Problem

PROFIBUS DP Master Unit is configured, but only the

SmartSlice I/O Unit is not exchanging data.

PROFIBUS DP Master Unit is configured, but none of the slaves are exchanging data.

Probable cause

The PROFIBUS configuration of the master for the Unit is not correct.

Correction

• Verify that the first selected I/O module is the “COM status” Module (see Note).

• The SmartSlice I/O Unit supports Profibus

DPV1 Class 2, not DPV1 Class 1. The slave configuration must not have the

DPV1 class 1 option enabled (hence the

DPV1 tab of the Generic Slave DTM).

Always disable the DPV1 class 1 setting for the Unit.

• Check the configuration and the parameter data of the slave.

• Verify that the selected configuration matches the physical slice configuration attached to the PROFIBUS Communication Unit.

• Verify the Profibus allocation of the Smart-

Slice I/O Unit is according the description.

Check the Profibus Diagnostics. refer to

Appendix B Slave Diagnostics Message.

Connect the Smart Slice Units and the cables properly and turn the power ON again.

The SmartSlice bus has one of the following problems at start-up:

• One or more SmartSlice Units are missing.

• Disconnected turn-back cable.

The PROFIBUS configuration for the Unit can not be compared with the actual configuration. The SmartSlice I/O Units PROFIBUS

Diagnostics indicates that the Unit is in state

Not Ready.

No power is supplied to the system.

• All LED indicators on the system are OFF.

• Verify that power is supplied to the system.

The PROFIBUS DP Master Unit is in either

OFF-LINE or STOP mode.

• The Master’s BST LED indicator is OFF

The Master Unit may have been configured to maintain its current mode (last mode was OFF-LINE, during download).

• The Master’s and BF the Unit’s LED indicator are ON: A PROFIBUS interface error has occurred: see Master Status 2 error flags (Master CIO Word n+6, bit 00 ~ 03, see Note) for details.

Network cabling is not correct.

• Master BF LED and/or Unit BF LED indicator is ON.

• Master Status 2 error flag may provide more information (Master CIO Word n+6, bit 00 ~ 03, see Note).

• Master CIO Words n+9 to n+16 show which slaves have problems.

Determine the mode of the Master Unit:

Check the Master Status 1 Word (Master

CIO Word n+5, bit 00 to bit 03, see Note). If

Unit is in OFF-LINE or STOP mode:

• Verify that the master does not use the same address as another Master Unit on the network. Otherwise, correct the Master

Unit’s PROFIBUS address.

• Set CLEAR or OPERATE switch in Master

CIO Word n (see Note).

• Change the configuration to set the Master

Unit OPERATE mode when switching the

PLC to RUN/MONITOR mode (see Master

DTM, Master Setup Tab). Download the configuration, and switch the PLC to RUN/

MONITOR mode.

Verify that the network installation is correct:

• Verify that all slaves are powered up and functioning correctly.

• Verify that all slave devices are correctly connected to the network.

• Verify that any repeaters used are functioning correctly.

• Check the cable length versus the selected baud rate.

• Verify that used stubs are not too long.

• Verify that termination (resistors and inductors) are properly set and used.

65

Other Errors

Section 4-3

Problem

PROFIBUS DP Master Unit is configured. Some, but not all slaves exchange data.

Probable cause

Network cabling is not correct.

• Master’s and/or Unit’s BF LED indicator is

ON or Flashing.

• Master Status 2 error flag may provide more information (Master CIO Word n+6, bit 00 ~ 03, see Note).

• Master CIO Words n+9 to n+16 show which slaves have problems.

Configuration is not correct.

• Master BF LED indicator is Flashing.

• Master CIO Words n+9 to n+16 show which slaves have problems.

• Use Cx-Profibus and DTMs to determine slave diagnostics.

The configuration contains timing errors.

• Master’s BF LED indicator is Flashing.

• Slaves are sometimes briefly in and out of data exchange.

Correction

Verify that the network installation is correct:

• Verify that all slaves are powered up and functioning correctly.

• Verify that all slave devices are correctly connected to the network.

• Verify that any repeaters used are functioning correctly.

• Check the cable length versus the selected baud rate.

• Verify that any stubs used are not too long.

• Verify that termination (resistors and inductors) are properly set and used.

Verify that the configuration is correct:

• Verify that address of targeted slave device matches the configured address.

• Verify that the slave parameter and configuration settings are correct.

• Verify that the watchdog setting for the slave device is not too low.

• Verify that the Bus parameter sets are correct. If necessary, increase Target Rotation Time and/or Min. Slave Interval parameters.

• Re-download the configuration.

• If the problem persists, replace the Unit.

Use the FINS RUN command to enable the slave devices.

PROFIBUS DP Master Unit is configured. All slaves were in data exchange, but it has now stopped.

Specific slave devices are configured and allocated to the Master Unit, but the slave which is not exchanging data may have been disabled using the FINS STOP command.

No power is supplied to the system. All LED indicators on the system are OFF.

The PROFIBUS DP Master Unit is in either

OFF-LINE or STOP mode.

• The Master BST LED indicator is OFF

• The Master and/or Slaves’ BF LED indicators are ON: A PROFIBUS interface error has occurred: see Master Status 2 error flags (Master CIO Word n+6, bit 00 ~ 03, see Note) for details.

PROFIBUS DP Master Unit is configured. All slaves were in data exchange, but all outputs are now set to zeros. Inputs can still be read.

Network cabling is not correct.

• Master and/or Slaves’ BF LED indicator are ON.

• Master Status 2 error flag may provide more information (CIO Word n+6, bit 00 ~

03, see Note).

The Master Unit is in CLEAR mode.

• The BST LED indicator is Flashing.

• The CLEAR switch has been set in the

Switch word 1 (CIO Word n, bit 02, see

Note)

• The Unit has been configured for Auto-

CLEAR and an error occurred on the Network with one or more slave devices.

• Verify that power is supplied to the system.

Determine the mode of the Master Unit:

Check the Master Status 1 Word (Master

CIO Word n+5, bit 00 to bit 03, see Note). If

Master Unit is in OFF-LINE or STOP mode:

• Verify that the master does not use the same address as another Master Unit on the network. Otherwise, correct the Master

Unit’s PROFIBUS address.

• Set CLEAR or OPERATE switch in CIO

Word n (see Note).

Verify that the network installation is correct:

• Verify that the network is still in tact, and connected to the Unit.

• Verify that any repeaters used are functioning correctly.

• If Auto-CLEAR is enabled, correct the network problem first.

• Set OPERATE switch in CIO Word n (see

Note) to force the Unit to the OPERATE mode.

66

Other Errors

Section 4-3

Problem

PROFIBUS DP Master Unit is configured. All slaves are in data exchange, but the outputs of some slave devices are not updated.

PROFIBUS DP Master Unit is configured. All slaves are in data exchange, but the inputs of some slave devices are not updated.

PROFIBUS Master Unit is configured. All slaves are in data exchange, but the parameters and status information can not be accessed.

The specified slave devices may be in Sync mode.

Probable cause

The specified slave device may have its watchdog disabled and is disconnected from the network, due to a cabling problem.

• Master BF LED indicator is Flashing.

• Master CIO Words n+9 to n+16 (see Note) show which slaves have problems.

• Use Cx-Profibus and DTMs to determine slave diagnostics.

The specified slave devices may be in

Freeze mode.

Correction

Send a Global-Control Unsync command to the targeted slave or group of slaves, using the Global-Control feature in CIO Words.

Verify that the specified slave device is still connected to the network.

Send a Global-Control Unfreeze command to the slave or group of slaves. Use either the

Global-Control feature in CIO Words.

Verify that the specified slave device is still connected to the network.

The specified slave device may have its watchdog disabled and is disconnected from the network, due to a cabling problem.

• Master BF LED indicator is Flashing.

• Master CIO Words n+9 to n+16 (see Note) show which slaves have problems.

• Use Cx-Profibus and DTMs to determine slave diagnostics.

The station address of the GRT1-PRT has been set to 00. This address is reserved for

Master Units in the messaging services protocol.

Set the station address to another value than

00, and restart the GRT1-PRT and the

SmartSlice I/O System.

Note n = CIO 1500 + (25 x unit number).

4-3-3 SmartSlice I/O Unit Error History

The PROFIBUS Configurator can read the error history details of the most recent errors that occurred in the SmartSlice I/O Units.

Error History Tab Page

67

Other Errors

Section 4-3

Communication Unit Error History

Error code

(Hex)

0002 WDT error

Meaning Detailed Error Code

1st byte 2nd byte

Corrective action Non

Volatile

0x00

0370 Verification error (Slave missing) 00

0372 Verification error (unregistered

Slave joined network)

0x80:

Slice I/O

0x00 021A Setting table logic error

Cause:

There was a checksum error in on of the following tables or a set value was out-of-range.

• Network parameters

• Registration table

• Slave parameters

• Backup restore data

0602 Memory access error

Cause:

• A hardware error occurred in the

Unit’s internal non-volatile memory.

• E2P hardware error

• Backup communication failure

• FROM save failure

• EEPROM save failure

• FROM hardware error

• ADR failure (communication failure)

0x01:

Read error

0x02:

Write error

0x00

00

Node address

(Hex)

0x0A: Registration table

0x0B: Slave parameters

0x0C: Network parameters

0x0F: Backup restore data

Replace the Unit if the error occurs frequently.

Remove the unregistered Unit and restart.

Download the settings again.

0x07: Error history

0x09: Identity information

0x0A: Registration table

0x0C: Network parameters

0x0F: Backup restore data

(E2P/FROM)

Replace the Unit if the error occurs frequently.

Yes

Connect the missing Unit and restart. No

No

Yes

Yes

(No for error history only)

Slice Bus Error History

Error code

(Hex)

Meaning

0300 Backup data reception error

0379 Slice configuration error

Detailed Error Code

1st byte 2nd byte

0x80:

Slice I/O

Node address

(Hex)

0374 Transmission error

Cause: A transmission error occurred.

0375 Communication stopped due to a transmission error.

Cause:

The Unit is set to stop communication for communication errors and a transmission error occurred.

(Error code 0374 will not occur in this case.)

0376 Slave duplication error

Cause: A Slave duplication error occurred.

0378 I/O size error

0x80:

Slice I/O

0x80:

Slice I/O

0x80:

Slice I/O

0x00

Node address

(Hex)

Node address

(Hex)

Node address

(Hex)

0x00

0x00 0x00

Corrective action

Verify that the Unit is connected properly. Check for excessive environmental noise

Verify that the Unit is connected properly. Check whether there is excessive noise in the surroundings.

Verify that the Unit is connected properly. Check whether there is excessive noise in the surroundings.

No

No

Yes

Verify that the Unit is connected properly and turn the power ON again.

Verify that the Unit is connected properly and turn the power ON again.

Verify that the Unit is connected properly and turn the power ON again.

Non

Volatile

No

No

No

68

Maintenance

Section 4-4

4-4 Maintenance

This section describes the routine cleaning and inspection recommended as regular maintenance.

4-4-1 Cleaning

Clean the PROFIBUS Communication Unit regularly as described below in order to keep it in an optimum operating condition.

• Regularly wipe the Unit with a dry, soft cloth.

• If a spot cannot be removed with a dry cloth, dampen the cloth with a neutral cleaner, wring out the cloth and wipe the Unit.

!Caution Never use volatile solvents such as paint thinner, benzine or chemical wipes.

These substances could damage the surface of the Unit.

4-4-2 Inspection

Inspection Equipment

Inspection Procedure

Be sure to inspect the system periodically to keep it in optimum operating condition. In general, inspect the system once or twice a year, but more frequently if the system is used in high temperature or high humidity environments or dirty/dusty conditions.

Prepare the following equipment before inspecting the system.

Required Equipment

Philips type screwdriver, multimeter, alcohol, and a clean cloth.

Optional Test Equipment

Depending on system conditions, a synchroscope, oscilloscope, thermometer or hygrometer (to measure humidity) might be needed.

Check the items in the following table and correct any that are below standard.

Environmental conditions

Item

Ambient temperature

Installation

Standard

0° C to 55° C

Equipment

Thermometer

Ambient humidity

Dust/dirt accumulation

Are the units installed securely?

Are the communication connectors fully inserted?

Are the external wiring screws tight?

Are the connecting cables undamaged?

10% to 90%

None

No looseness

No looseness

No looseness

No damage

Hygrometer

---

---

---

---

---

69

Replacing the Unit

Section 4-5

4-5 Replacing the Unit

4-5-1 Replacement Precautions

The PROFIBUS Communication Unit is a Network device. If the Unit is damaged, it will effect the entire Network, so always ensure repairs are undertaken immediately. It is recommended to have a spare PROFIBUS

Communication Unit on hand so that repairs may be conducted quickly.

Replacement Precautions

Observe the following precautions when replacing the Unit.

• Always turn OFF the power before replacing the Unit.

• Ensure that the new Unit is not faulty.

• If a poor connection is suspected of causing the malfunction, clean the connectors using a clean, soft cloth and industrial-grade alcohol. Remove any lint or threads left from the cloth, and remount the Unit.

• When returning a faulty Unit for repair, always attach a detailed fault report to the Unit and return it to the nearest OMRON dealer.

Note

1.

In order to prevent faulty operation be sure to turn off the power to all master and slave devices before replacing the Unit.

2.

When replacing the Unit, do not reconnect it to the Network before carrying out the procedures listed below.

4-5-2 Setting the Unit after Replacement

After replacing the Unit - before re-applying the power - set the Profibus station address number to the same value as the previous Unit.

After re-applying the power, the Profibus configuration settings will be automatically set by the Profibus Master. No user actions required.

When using one or more of the following Unit functions for the old Unit:

1.

Table Registration Function, see Section

3-2-1 Table Registration Function

2.

Backup Function, see Section

3-2-2 Backup Function

3.

Automatic Restore Function, see Section

3-2-3 Automatic Restore Function

execute these operations again for the new Unit.

Re-connect it to the network, and restart operation.

70

Appendix A

PROFIBUS Technology

A-1 Overview of PROFIBUS

PROFIBUS (PROcess FIeldBUS) is an open fieldbus standard for a wide range of applications in manufacturing, processing and building automation. The Standard, EN 50170 (the Euronorm for field communication), to which PROFIBUS adheres, guarantees vendor independence and transparency of operation. It enables devices of various manufacturers to intercommunicate without having to make any special interface adaptations.

The PROFIBUS family comprises three mutually compatible versions:

• PROFIBUS FMS (for Fieldbus Message Specification) is the general-purpose solution for high-level extensive and complex communication tasks. Powerful services open up a wide range of applications and provide great flexibility.

• PROFIBUS DP (for Decentralized Periphery) is a variant optimized for high speed and low-cost interfacing.

It is specially designed for communication between automation control systems and distributed I/O at the device level.

• PROFIBUS PA (for Process Automation) is a variant which permits sensors and actuators to be connected to one common bus even in areas where intrinsically safe products are required. It permits data and power to be supplied over the bus using 2-wire technology according the international standard IEC 1158-2.

PROFIBUS DP and PROFIBUS FMS use the same transmission technology and uniform bus access protocol.

Consequently, both versions can be operated simultaneously on the same bus. FMS field devices, however, cannot be controlled by DP masters and vice versa.

!CautionIt is not possible to exchange one of these family members by another family member. This will cause faulty operation.

A-2 PROFIBUS Communication Protocol

In general, the PROFIBUS communication protocol is based on the Open System Interconnection (OSI) reference model in accordance with the international standard ISO-7498 (see the following illustration). The model defines 7 layers of communication functions, three of which - layers 1, 2, and 7 - are used in PROFIBUS.

DP-Profiles

DP-Extensions

DP Basic Functions User Interface Layer

(7) Application Layer

(6) Presentation Layer

(5) Session Layer

(4) Transport Layer

(3) Network Layer

(2) Data Link Layer

(1) Physical Layer

NOT DEFINED

Fieldbus Data Link (FDL)

RS485 / Fibre Optics

• Layer 1, the Physical Layer of this model, defines the physical transmission characteristics.

• Layer 2, the Data Link Layer of this model, defines the bus access protocol. This protocol also includes data security and the handling of transmission protocols and telegrams.

• Layer 7, the Application Layer of this model, defines the application functions. This Layer is only applicable to PROFIBUS FMS

In the rest of this Appendix, only PROFIBUS DP is considered.

71

PROFIBUS Technology

Appendix A

PROFIBUS DP uses layers 1 and 2, and the user interface. Layers 3 to 7 are not defined for PROFIBUS DP.

The User Interface Layer defines the interface functions for specific application areas, i.e. the PROFIBUS DP basic functions and communication profiles. This streamlined architecture ensures fast and efficient data transmission. The application functions which are available to the user, as well as the system and device behaviour of the various PROFIBUS DP device types, are specified in the user interface.

RS-485 transmission technology or fibre optics are available for transmission. RS-485 transmission is the most frequently used transmission technology. Its application area includes all areas in which high transmission speed and simple inexpensive installation are required. PROFIBUS modules are interconnected by single twisted-pair shielded copper wires.

The RS-485 transmission technology is very easy to handle. Installation of the twisted pair cable does not require expert knowledge. The bus structure permits addition and removal of devices or step-by-step commissioning of the system without influencing the other devices. Later expansions have no effect on devices which are already in operation.

Transmission speeds between 9.6 kbit/s and 12 Mbit/s can be selected as shown in the table below. One unique transmission speed must selected for all devices on the bus when the system is commissioned.

Baud rate (kbit/s)

9.6

19.2

45.45

93.75

187.5

Distance / segment (m)

1200

1200

1200

1200

1000

Baud rate (kbit/s)

500

1500

3000

6000

12000

Distance / segment (m)

400

200

100

100

100

The maximum cable length values depend on the transmission speed and are based on type-A cable (see

Cable Type on page 25). The length can be increased by the use of repeaters.However, it is not recommended

to use more than three repeaters in series in a PROFIBUS network.

A-3 Device Types

PROFIBUS distinguishes between master devices and slave devices.

Master devices determine the data communication on the bus. A Master can send messages without an external request, as long as it holds the bus access right (the token). Masters are also referred to as active devices in the PROFIBUS standard.

There are two types of master devices.

• A PROFIBUS DP Class 1 Master (DPM1) device is a central controller, which exchanges information with the decentralized devices (i.e. DP slaves) within a specified message cycle.

• PROFIBUS DP class 2 Master (DPM2) devices are programmers, configuration devices or operator panels. They are used during commissioning, for configuration of the DP system, or for operation and monitoring purposes.

Slave devices are peripheral devices. Typical slave devices include input/output devices, valves, drives, and measuring transmitters. They do not have bus access rights and they can only acknowledge received messages or send messages to the master when requested to do so. Slave devices are also called passive devices.

The GRT1-PRT is a PROFIBUS DP Slave device.

To enable the exchange of devices from different vendors, the user data has to have the same format. The

PROFIBUS DP protocol does not define the format of user data, it is only responsible for the transmission of this data. The format of user data may be defined in so called profiles. Profiles can reduce engineering costs since the meaning of application-related parameters is specified precisely. Profiles have been defined for specific areas like drive technology, encoders, and for sensors / actuators.

72

PROFIBUS Technology

Appendix A

A-4 Bus Access Protocol

The PROFIBUS bus access protocol is implemented by OSI layer 2. This protocol also includes data security and the handling of the transmission protocols and messages.

The Medium Access Control (MAC) specifies the procedures which determine when a device is permitted to transmit data. A token passing procedure is used to handle the bus access between master devices, and a polling procedure is used to handle the communication between a master device and its assigned slave device(s).

The token passing procedure guarantees that the bus access right (the token) is assigned to each master within a precisely defined time frame. The token message, a special message for passing access rights from one master to the next master, must be passed around the logical token ring - once to each master - within a specified target rotation time. Each master executes this procedure automatically.

The polling or master-slave procedure permits the master, currently in possession of the token, to access its assigned slaves. The figure below shows a possible configuration The configuration shows three active devices

(masters) and six passive devices (slaves).

Token Passing

DPM1 DPM2 DPM1

Active stations

Master devices

Polling

PROFIBUS

Passive stations

Slave devices

The three masters form a logical token ring. When an active device receives the token message, it can perform its master role for a certain period of time. During this time it can communicate with all assigned slave devices in a master-slave communication relationship, and a DPM2 master can take the initiative to communicate with

DPM1 master devices in a master-master communication relationship.

In addition to logical peer-to-peer data transmission, PROFIBUS DP provides multi-peer communication

(broadcast and multicast).

• Broadcast communication: a master device sends an unacknowledged message to all other devices (masters and slaves).

• Multicast communication: a master device sends an un-acknowledged message to a predetermined group of devices (masters and slaves).

A-5 Diagnostic functions

Extensive diagnostic functions defined in PROFIBUS DP enable the fast location of errors at slave devices.

Diagnostic messages are transmitted over the bus and collected at the master. Three levels of diagnostic messages are defined:

• Messages indicating the general operational status of the whole device, e.g. over temperature, low voltage.

• Messages indicating an error in a specific I/O range of a device, e.g. an 8-bit output module.

• Messages indicating an error at a given input or output, e.g. short circuit on Output 5.

73

PROFIBUS Technology

Appendix A

A-6 Protection Mechanisms

PROFIBUS DP provides protection functions against parameterization errors or failure of the transmission equipment. Time monitoring is provided both at the master and the slave devices. The monitoring interval is specified when the system is configured.

The PROFIBUS DP Master monitors data transmission of each individual slave device with the Data-Control-

Timer. This timer expires if response data is not correctly received from the slave within the monitoring interval.

If the automatic error reaction (Auto-CLEAR) has been enabled, the PROFIBUS DP master exits its OPERATE state, switches the outputs of all assigned slaves to the fail-safe status and changes to the CLEAR state.

Slave devices use a watchdog to detect failures of the master or the bus. If no data exchange with the master occurs within the set watchdog time interval, the slave automatically switches its outputs to the fail-safe mode.

Also, access protection is provided for the inputs and outputs of the slaves operating in multi-master systems.

Only authorized masters can access their slaves.

A-7 Network Operation Modes

PROFIBUS DP distinguishes four different network operation modes:

• OFFLINE: Communication with all PROFIBUS DP participants (masters and slaves) is stopped. The Master ceases to access the PROFIBUS network.

• STOP: Communication between the master and its slaves is stopped. Only communication between the master and other masters is possible.

• CLEAR: The master tries to set parameters, check the configuration, and perform data exchange with its associated slaves. Data exchange involves reading the inputs of the PROFIBUS DP slaves and writing zeros to the outputs of the slaves.

• OPERATE: The master exchanges I/O data with its assigned slaves. Also, the master cyclically sends its own status to all assigned PROFIBUS DP slaves using a broadcast message.

The PROFIBUS DP Master Unit will always be in one of these four modes. Mode transitions will be performed via intermediate modes. For example, a mode transition from OFF-LINE to OPERATE, will be performed as

OFF-LINE

STOP

CLEAR

OPERATE.

If an error occurs during the data exchange phase of the master, the ‘Auto-CLEAR’ function determines the subsequent actions. If this function has been disabled, the master remains in the OPERATE mode. If the function has been enabled, the master automatically changes the network to the CLEAR mode, in which the outputs of the assigned PROFIBUS DP slaves are switched to zero, i.e. the ‘fail-safe’ state. The master continues to read the inputs of the slaves.

A-8 Configuring the PROFIBUS DP Master

In order to operate a PROFIBUS network, each master in the network needs to be configured. This process of

PROFIBUS master configuration involves

• setting up the network topology, i.e. assigning the slave devices to the master device,

• defining the parameterization data, which the master will send to each of the slave devices, before process data exchange can commence

• defining the configuration data, i.e. defining the process data, which will be exchanged,

• setting up the bus parameters, which define the baud rate and the bus timing parameters.

• downloading the configuration setup to the master device.

The configuration process is usually facilitated by a special Computer based program, often referred to as a configurator. The configurator requires special configuration files, defining the configuration options for each device, which is to participate in data exchange. The files must be provided by the manufacturer of the device.

Two types of configuration technology exist:

• Configuration technology based on FDT/DTM technology

• Configuration technology based on GSD-files

74

PROFIBUS Technology

Appendix A

A-9 FDT/DTM Technology

The FDT/DTM concept specifies the interfaces between the engineering systems called Field Device Tools

(FDT), and the device-specific software components called Device Type Managers (DTM). FDT/DTM is the most recent advancement in Configurators.

The FDT/DTM concept separates the device dependent functionality (which is in the DTM) from the application. It provides separate interfaces for device configuration, monitoring and maintenance solutions, which before largely depended on the manufacturer of the application. Because of this concept, any type of network can be configured and accessed, provided the appropriate DTMs are available.

A FDT container application facilitates configuration of network devices and parameterizing and/or manipulating their operational modes. All device dependent functionality is concentrated in the DTM.

FDT container applications can be stand-alone tools, or can be part of other engineering tools such web browsers providing FDT interfaces. Since FDT standardizes the interfaces, it allows devices from different manufacturers to be integrated in any automation system, regardless of the fieldbus system.

Cx-Profibus is an example of a FDT container application.

DTMs are provided by the manufacturer of the device. A DTM is comparable to a printer driver, which allows interactive configuration and diagnostics. The DTM provides not only the configuration, manipulation and monitoring functions for a device including the user interface functions, it also provides the connection technology to the device.

A DTM provides all the options for configuration and monitoring of a device, which it can present to the user through its own user interface. The user interface for a DTM is provided using ActiveX windows. In general multi-language user interface windows, including DTM specific Help files are supported by the DTM.

In general, a device configuration DTM is accompanied by a communication DTM. This specific DTM facilitates device specific communication, e.g. for downloading a configuration to a PROFIBUS DP Master Unit and/or for retrieving monitoring information from PROFIBUS DP Master Unit. It may incorporate the specific communication protocol, or rely on other available drivers.

A-10 GSD file Technology

The older and most commonly used configuration technology is the based on GSD files (General Slave Data file). A GSD file is a text file, containing the characteristic features and configuration options of a device. The device data base file of each device is loaded in the configurator and downloaded to the master device.

GSD files are usually supplied with a Unit, or can be downloaded from the Internet, either from the manufacturer's site, or from the GSD library of PROFIBUS International at http://www.profibus.com.

OMRON provides a GSD file for the GRT1-PRT, to facilitate configuration for third-party PROFIBUS Master devices.

The GSD files are prepared individually by the vendor for each type of device, according to a fixed format.

Some parameters are mandatory, some have a default value and some are optional.

When comparing the two configuration technologies, a GSD file only provides information on the device characteristics and configuration options. It has no GUI of its own, nor can it connect to the device itself. A GSD file always requires a separate configurator program to interpret the data. In the FDT/DTM concept all these device related functions are included in the DTM. The DTM can be executed from any program, which provides FDT interfaces.

75

Appendix B

Slave Diagnostics Message

The PROFIBUS Communication Unit supports diagnostics to allow the user system to automatically determine problems, which can occur in the SmartSlice I/O system. The PROFIBUS Diagnostics consists of standard diagnostics and possibly extended diagnostics.

B-1 Standard Diagnostics

Slave Diagnostics Byte 1: Station Status 1

7 6 5 4 3 2 1 0

Byte 1

Diag.Station_Non_Existent

Diag.Station_Not_Ready

Diag.Cfg_Fault

Diag.Ext_Diag

Diag.Not_Supported

Diag.Invalid_Slave_Response

Diag.Prm_Fault

Diag.Master_Lock

Bit

00

01

02

03

04

05

06

07

Name

Diag.Station_Non_Existent

Diag.Station_Not_Ready

Diag.Cfg_Fault

Description

This bit is set by the Master Unit if the Unit does not respond to any of the request messages sent by the master. If this bit is set the diagnostic bits contains the state of the last diagnostic message or the initial value. The slave device sets this bit to zero in case of a correct response.

This bit indicates that the Unit is not yet ready for data transfer. This also may be caused by a SmartSlice Bus failure during start-up.

Set by the Unit, this bit indicates that the last received configuration data from the

Master Unit is rejected. The configuration data in the slave device differ from the configuration sent by the Master Unit.

Diag.Ext_Diag

Diag.Not_Supported

This bit indicates that the diagnostics message returned by the Unit contains extended diagnostics, i.e. it contains more than the mandatory 6 bytes.

In case the Master Unit sent a message to the Unit, which is not supported, this bit will be set.

Diag.Invalid_Slave_Response

This bit is set by the Master Unit if the Unit has returned an invalid response to a

Master request message. The slave device will set this bit to 0.

Diag.Prm_Fault

Set by the Unit, this bit indicates that the last received parameter data from the

Master Unit has been rejected. The parameter data in the Unit differ from the parameter sent by the Master Unit.

Diag.Master_Lock

This bit indicates that the Unit has been parameterized by another master. The bit is set by the Master Unit, if the address in byte 4 differs from 255 and from the

Master Unit’s own address. The Unit sets this bit to zero.

77

Slave Diagnostics Message

Slave Diagnostics Byte 2: Station Status 2

7 6 5 4 3 2 1 0

Byte 2

Bit

00

Name

Diag.Prm_Req

01 Diag.Stat_Diag

02

03

04

Reserved

Diag.WD_On

Diag.Freeze_Mode

05

06

07

Diag.Sync_Mode

Reserved

Diag.Deactivated

Appendix B

Diag.Prm_Req

Diag.Stat_Diag

Reserved

Diag.WD_On

Diag.Freeze_Mode

Diag.Sync_Mode

Diag.Deactivated

Description

This bit is set by the Unit and indicates that it needs to be (re-)parameterized.

The Unit is not in Data_Exchange with the Master Unit. The bit remains on as long as it has not been parameterized successfully.

This bit indicates static diagnostics at the Unit. The Master Unit will repeatedly request diagnostics data. As long as this bit is set, Data_Exchange with the Master Unit is not being performed.

This bit is reserved and always set to 1 by the Unit.

If the watchdog has been enabled at the slave device (through the appropriate setting in the parameterization message) this bit will be set.

If the Unit has been set to the Freeze mode, using the global command, this bit will be set to on. The bit will be set to off, if an Unfreeze command has been received.

If the Unit has been set to the Sync mode, using the global command, this bit will be set to on. The bit will be set to off, if an Unsync command has been received.

This bit is reserved.

This bit is set by the Master Unit, indicating that the Unit has been disabled (i.e. using the STOP FINS command). The Unit is allocated to the Master Unit, but removed from cyclic processing.

Slave Diagnostics Byte 3: Station Status 3

7 6 5 4 3 2 1 0

Byte 3

Diag.Ext_Diag_Overflow

Bit

00

~

06

07

Reserved

Name

Diag.Ext_Diag_Overflow

Description

These bits are reserved and always set to 0 by the slave device.

If set, this bit indicates that there exists more diagnostic information than specified in Ext_Diag_Data. This bit will - for example - be set if the Unit has more diagnostics available than it can enter in its send buffer. This bit will also be set if the Master Unit receives more diagnostic information than it can enter in its diagnostic buffer.

Slave Diagnostics Byte 4: Master PROFIBUS Address

This byte contains the PROFIBUS address of the Master Unit, which parameterized the slave. If the slave is not parameterized correctly, the byte contains FF (Hex) or 255 (Decimal).

78

Slave Diagnostics Message

Appendix B

Slave Diagnostics Bytes 5 to 6: Ident Number

Slave Diagnostics Bytes 5 and 6 contain the PROFIBUS Ident Number of the slave device. The Ident number uniquely identifies the type of device. For the GRT1-PRT PROFIBUS DPV1 slave the Ident number is 098F

(Hex).

B-2 Extended Diagnostics

Module Diagnostics

The Module Diagnostics will indicate whether or not SmartSlice I/O Units have communication or configuration errors related to the Unit.

7 6 5 4 3 2

Header byte = 4A (Hex)

1 0

Byte 7

Byte 8

Byte 9

Byte 10

Byte 11

Byte 12

Byte 13

Byte 14

Byte 15

Byte 16

7 6 5 4 3 2 1 0

15 14 13 12 11 10 9

23 22 21 20 19 18 17

8

16

31 30 29 28 27 26 25 24

39 38 37 36 35 34 33

47 46 45 44 43 42 41

32

40

55 54 53 52 51 50 49

63 62 61 60 59 58 57

48

56

Fixed to 0 64

SmartSlice Slot 1 ~ 7, COM Status (0)

SmartSlice Slots 8 ~ 15

SmartSlice Slots 16 ~ 23

SmartSlice Slots 24 ~ 31

SmartSlice Slots 32 ~ 39

SmartSlice Slots 40 ~ 47

SmartSlice Slots 48 ~ 55

SmartSlice Slots 56 ~ 63

SmartSlice Slot 64

Module Diagnostics bytes

Bit

00 COM Status

Name

01 -

64

Module Diagnostics

Description

When set, this bit indicates that there is Diagnostics information pending related to the COM status.

When set, this bit indicates that there is Diagnostics information pending related to the corresponding SmartSlice slot.

79

Slave Diagnostics Message

Module Status Diagnostics

The Module Status Diagnostics will indicate the detailed status of the SmartSlice I/O Units.

Byte 17

Byte 18

Byte 19

Byte 20

7 6 5 4 3 2

Header byte = 14 (Hex)

1

Status Type = 82 (Hex)

Slot Number = 00 (Hex)

Specifier = 00 (Hex)

0

Appendix B

Byte 21

Byte 22

Byte 23

Byte 24

Byte 25

Byte 26

Byte 27

Byte 28

Byte 29

Byte 30

Byte 31

Byte 32

Byte 33

Byte 34

Byte 35

Byte 36

32

36

40

44

48

52

56

60

64

04

08

12

16

20

24

28

31

35

39

43

47

51

55

59

63

03

07

11

15

19

23

27

30

34

38

42

46

50

54

58

62

02

06

10

14

18

22

26

29

33

37

41

45

49

53

57

61

01

05

09

13

17

21

25

SmartSlice Slot 1 ~ 4

SmartSlice Slot 5 ~ 8

SmartSlice Slot 9 ~ 12

SmartSlice Slot 13 ~ 16

SmartSlice Slot 17 ~ 20

SmartSlice Slot 21 ~ 24

SmartSlice Slot 25 ~ 28

SmartSlice Slot 29 ~ 32

SmartSlice Slot 33 ~ 36

SmartSlice Slot 37 ~ 40

SmartSlice Slot 41 ~ 44

SmartSlice Slot 45 ~ 48

SmartSlice Slot 49 ~ 52

SmartSlice Slot 53 ~ 56

SmartSlice Slot 57 ~ 60

SmartSlice Slot 61 ~ 64

00

01

10

11

Data valid

Reserved

Wrong SmartSlice / Data invalid

No SmartSlice / Data invalid

Note If two or more SmartSlice I/O Units do not match with the PROFIBUS I/O configuration sent by the

PROFIBUS Master Unit, the diagnostics message will only contain the error flags of the first mismatching SmartSlice I/O Unit.

80

Appendix C

Explicit Messages

Explicit messages sent from the Master Unit to a GRT1 Series PROFIBUS Communication Unit can be used to read or write any parameter of a specified GRT1 Series PROFIBUS Communication Unit.

The PROFIBUS Communication Units process the commands sent from the Master and then return responses.

C-1 Basic Format of Explicit Messages

The basic format of each command and response is shown below.

Command Block

Destination station address

Service code

Class

ID

Instance

ID

Attribute

ID

Data

Destination Station Address

The station address of the Unit that is sending the explicit messages (commands) is specified as a single-byte hexadecimal.

Service Code, Class ID, Instance ID, Attribute ID

The parameters used for specifying the command, processing object, and processing content.

Note The number of bytes designated for Class ID, Instance ID, and Attribute ID depend on the Master Unit.

When sent from an OMRON Master, the Class ID and Instance ID are 2 bytes (4 digits), and Attribute ID is 1 byte (2 digits).

Data

Data is not required when the read command is used.

Response Block

Normal Response Block

Number of bytes received

Source station address

Error Response Block

Number of bytes received:

0004 Hex (fixed)

Source station address

Service code

Service code

Data

Error code

Number of Bytes Received

The number of bytes received from the source station address is returned in hexadecimal. When an error response is returned for an explicit message, the number of bytes is always 0004 Hex.

Source Station Address

The station address of the station from which the command was sent is returned in hexadecimal.

81

Explicit Messages

Appendix C

Service Code

For normal completion, the value when the leftmost bit of the service code specified in the command turns ON is stored as shown in the following table.

Function

Write data

Read data

Reset

Save

Command service code

10 Hex

0E Hex

05 Hex

16 Hex

Response service code

90 Hex

8E Hex

85 Hex

96 Hex

When an error response is returned for an explicit message, the value is always 94 Hex.

Data

Read data is included only when a read command is executed.

Error Codes

The explicit message error code. For details, refer to the list of error codes in the following table.

List of Error Codes

Response code

08FF

09FF

16FF

15FF

13FF

0CFF

20FF

0EFF

10FF

14FF

19FF

2AFF

Error name

Service not supported

Invalid Attribute value

Object does not exist

Too much data

Not enough data

Object state conflict

Invalid parameter

Attribute not settable

Device state conflict

Attribute not supported

Store operation failure

Group 2 only server general failure

Cause

The Service code is incorrect.

The specified Attribute value is not supported.

The data written was outside valid range.

The specified Instance ID is not supported.

The data is larger than the specified size.

The data is smaller than the specified size.

The specified command cannot be executed due to an internal error.

The specified operation command data is not supported.

An Attribute ID supported only for reading has been executed for a write service code.

The specified command cannot be executed due to an internal error.

The specified Attribute is not supported.

The data cannot be stored in memory.

The specified command or Attribute is not supported or the Attribute was not set.

82

Explicit Messages

Appendix C

C-2 Explicit Messages Common to All Slaves

Alarm Information Read

Explicit message

Alarm Information

Read

Read/write Function Command

Read

Service code

0E Hex

Class ID

9C Hex

Instance ID

01 Hex

Attribute

ID

73 Hex Reads the

SmartSlice

I/O Unit’s alarm data.

-

Data size

Response

32 bytes

(See note.)

Note The following tables show the alarm data details.

+0

+1

+2

Word offset

:

+13

+14

+15

15 12 11 8

Bit

7 4 3 0

SmartSlice I/O Node #4 SmartSlice I/O Node #3 SmartSlice I/O Node #2 SmartSlice I/O Node #1

SmartSlice I/O Node #8 SmartSlice I/O Node #7 SmartSlice I/O Node #6 SmartSlice I/O Node #5

SmartSlice I/O Node #12 SmartSlice I/O Node #11 SmartSlice I/O Node #10 SmartSlice I/O Node #9

SmartSlice I/O Node #56 SmartSlice I/O Node #55 SmartSlice I/O Node #54 SmartSlice I/O Node #53

SmartSlice I/O Node #60 SmartSlice I/O Node #59 SmartSlice I/O Node #58 SmartSlice I/O Node #57

SmartSlice I/O Node #64 SmartSlice I/O Node #63 SmartSlice I/O Node #62 SmartSlice I/O Node #61

The 4 bits allocated to each SmartSlice I/O Node have the following functions:

Bit 0

Bit 1

Bit 2

Bit 3

Warning (Minor error)

Alarm (Major error)

Reserved

Reserved

Note The Warning/Alarm details depend on the Communication Unit. Refer to the Unit’s operation manual.

83

Explicit Messages

Appendix C

C-3 Using Explicit Messages

The following example shows how to use explicit messages with a PROFIBUS Communication Unit connected to a CJ1W-PRM21 Profibus Master Unit.

Example: Sending a “Unit Maintenance Present Value Read” command to the

PROFIBUS Communication Unit

.

Example: PROFIBUS Master Unit’s station address: 05

Unit number: 0

Unit address: 11 Hex

GRT1-PRT Communication Unit’s station address: 65

Ladder program

PROFIBUS DP-V1 Master Unit

Explicit message sent

CMND

C

S

D

PROFIBUS

Network

Read SmartSlice alarm data

SmartSlice I/O System

Operation

Reads the Alarm data of the connected SmartSlice I/O Unit from the PROFIBUS Communication Unit.

The data is read using the EXPLICIT MESSAGE SEND command (2801).

The command data is written in words starting from D01000 in the PLC and the response data is stored in words starting from D02000.

If the command does not end normally, the end code is stored in D00006 and the send command is re-executed.

Note The maximum length of the EXPLICIT MESSAGE SEND command (2801) when used for sending data over PROFIBUS is limited to 1004 bytes.

84

Explicit Messages

Command Details

• [CMND S

S: D01000

D C]

D (first response word): D02000

C: D00000

Contents of S

Address

D01000

D01001

28 01

41 0E

Contents (Hex)

00 9C

00 01

73 **

D01002

D01003

D01004

Contents of C

Address

D00000

D00001

D00002

D00003

D00004

00 09

00 2A

00 00

00 11

00 00

Contents (Hex)

Appendix C

Meaning

Command code

PROFIBUS Communication Unit’s station address: 65

Service code: 0E Hex

Class ID: 009C Hex

Instance ID: 0001 Hex

Attribute ID: 73 ** Hex (Set any value for the blank boxes.)

Meaning

Number of bytes of command data

Number of bytes of response data

Destination PROFIBUS Master Unit’s network address: 0

Destination PROFIBUS Master Unit’s unit address: 11 Hex

Response required

Communication port number: 0

Number of retries: 0

Response monitoring time: 6 s D00005

Response

Contents of D

Address

D02000

D02001

D02002

D02003

00 3C

28 01

00 00

00 24

41 8E

Contents (Hex) Meaning

D02004 to D02020 20 00

D02005 00 00

D02006 to D02020 ...

Response source station address: 65 (41 Hex)

Normal completion: 8E Hex

Number of slave alarm data: 32 (20 Hex)

Status of slave #4, Status of slave #3 (2 bits each)

Status of slave #8, slave #7, slave #1, slave #2 (2 bits each)

(continue)

85

Explicit Messages

Appendix C

86

A

About

Manual

, vii

A-line

,

15

Auto-CLEAR

,

74

Automatic restore

,

38

B

Backup function

,

38

Basic Operating Procedure

,

9

Baud rate

,

15

B-line

,

15

Bus connector

,

27

Bus termination

See Wiring

C

Cable

see Wiring

changing present values

, xv

Configuring the PROFIBUS-DP Master

,

74

Connecting SmartSlice I/O Units

,

18

Connector

,

15

Cx-Profibus

,

7

D

Declaration of Confirmity

,

xviii

Device DTM

,

75

Diagnostic functions

,

73

Diagnostics

,

73

Diagnostics Update Delay

,

45

DIP switches

,

14

ADR switch

,

14

BACK switch

,

14

REGS switch

,

14

Downloading the configuration

,

8

E

EMC directive

,

xvii

EN50170

,

15

Error history

,

41

Error on Cyclic Data Exchange

,

44

F

Fail-safe

,

74

FALS instruction

, xiv

FDT/DTM

Index

Communication DTM

,

75

Device DTM

,

75

DTM versus GSD file

,

75

FDT Container application

,

75

FDT/DTM Concept

,

75

FINS

,

44

G-H

Generic Slave DTM

Extensions

Configuration convention

,

44

Diagnostics Update Delay

,

45

Error on Cyclic Data Exchange

,

44

GRT1-PRT

Automatic restore

,

38

Backup function

,

38

Configuration

,

42

I/O Data mapping

,

51

Using the GSD File

,

43

DIP switches

,

14

Error history

,

41

Features

,

3

Functional Specifications

,

5

I/O allocation

,

33

I/O Data exchange

,

4

Installation

,

16

Installing a Unit

,

17

Messaging services

,

4

Monitoring

,

52

Online replacement of I/O units

,

40

Power connector

,

15

PROFIBUS connector

,

15

Protocol Specification

,

6

Removing a Unit

,

17

Specifications

,

5

Station address

Rotary switches

,

13

System configuration

,

4

Table comparison

,

37

Table registration

,

36

GRT1-PRT Configuration

Features

,

7

Setup

,

42

Using the GSD File

,

8

GRT1-PRT DTM

Comparing data

,

47

Diagnostics Update Delay

,

45

Downloading data

,

47

Editing SmartSlice I/O units

,

47

Error on Cyclic Data Exchange

,

44

I/O module tab

Selecting I/O configuration

,

45

Installation

Procedure

,

28

Requirements

,

28

87

88

Installation requirements

,

28

Parameter area tab

,

43

Auto-Clear

,

44

FINS fragment length

,

44

Station address

,

43

Watchdog control setting

,

43

Resetting the unit

,

48

Uploading data

,

47

Using online functions

,

47

GRT1-PRT I/O module tab

,

45

GRT1-PRT Specifications

Environment

,

5

External dimensions

,

7

Front case

,

5

Installation

,

5

PROFIBUS services

,

6

SmartSlice I/O system

,

5

GRT1-Series

Overview

,

2

SmartSlice I/O Units

,

2

GSD file

DTM versus GSD file

,

75

GSD file technology

,

75

I

I/O data allocation

,

33

I/O data sizes

,

35

Table comparison

,

37

Table registration

,

36

Installation

DIN Rail

,

16

Handling precautions

,

16

L-M

LED indicators

Specifications

,

12

Low voltage directive

,

xvii

Maintenance

,

69

Cleaning

,

69

Inspection

,

69

Equipment

,

69

Procedure

,

69

Manual

About

,

vii

Revision history

,

91

Master devices

See PROFIBUS, Master

Master DTM

Configuration

,

74

Medium Access Control

,

73

Index

N

Network

Monitoring

,

52

Operation

,

52

Network operation modes

CLEAR mode

,

74

OFFLINE mode

,

74

OPERATE mode

,

74

STOP mode

,

74

Network structure

,

24

Linear bus topology

,

24

Repeaters

,

24

Tree topology

,

24

O-P

OMRON

Copyright notice

, iv

Online replacement

,

40

Operating the Network

,

52

Operation modes

See Network Operation modes

,

74

OSI reference model

,

71

Layer 1, Physical Layer

,

71

Layer 2, Data Link Layer

,

71

Layer 7, Application Layer

,

71

outputs precautions

, xv

Polling procedure

,

73

Power supply errors

,

61

Precautions

Application

, xvi

General

,

xiv

Operating Environment

,

xv

Safety

,

xiv

PROFIBUS

Explicit messages

,

81

Master

Class 1 Master (DPM1)

,

72

Class 2 Master (DPM2)

,

72

Network

Operational modes

,

74

PROFIBUS-DP, Decentralized Periphery

,

71

PROFIBUS-PA, Process Automation

,

71

Protocol Specification

,

6

Protection mechanism

Master Unit

,

74

Monitoring Time

,

74

Slave device

,

74

R

refreshing

data

,

xv

Rotary switches

,

13

RS-485

Cable length

,

72

Cable Type

,

25

See also Wiring

S

Safety Precautions

, xiv

Setup

GRT1-PRT Configuration

,

42

Shock resistance

,

5

Slave devices

,

72

Slave diagnostics

Extended data

Channel related

,

80

Device related

,

77

,

79

Module related

,

79

SmartSlice I/O Unit errors

,

62

SmartSlice I/O Units

Online replacement

,

40

Troubleshooting

,

62

,

64

T

Table comparison

,

37

Table registration

,

36

Token passing

,

73

Trademarks

, iv

transferring I/O memory data

,

xv

transferring I/O memory files

,

xv

Transmission medium

RS-485

,

72

Troubleshooting

GRT1-PRT, SmartSlice I/O Units

,

60

Power supply errors

,

61

PROFIBUS errors

,

63

SmartSlice I/O Communication

,

64

SmartSlice I/O Unit errors

,

62

Unit system errors

,

62

Using LED indicators

,

60

U

Unit replacement

,

70

Precautions

,

70

Unit setup

,

70

Unit system errors

,

62

V-W

Vibration resistance

,

5

Wiring

Index

Bus connector

,

27

Bus termination

,

26

Inductors

,

26

Resistors

,

26

Cable length

,

72

Cable shield connection

,

27

89

Revision History

A manual revision code appears as a suffix to the catalog number on the front cover of the manual.

Cat. No. W04E-EN-01

Revision code

The following table outlines the changes made to the manual during each revision. The page numbers of a revision refer to the previous version.

Revision Code

01

02

03

Date

April 24, 2006 Initial version.

Revised Content

September 4, 2006 Page xiv: Updated Safety Precaution section.

Page xvii: Added precaution bullet on foreign object damage when wiring.

Page 54: Added note on use of monitoring DTM.

November 27, 2006 Page 2: Removed model table and added manual reference.

Page 4: Removed non-supported features.

Page 16: Added note to bottom of page.

Page 22: Removed power consumption table and added manual reference.

Page 23: Removed current consumption table and added manual reference.

Page 57: Updated text on third bullet and removed Note 1.

Page 58: Corrected T

MAX

calculation formula.

Page 58: Moved note at the bottom to next page.

Page 59: Improved IO Refresh timing table.

Page 59: Removed formula for T

SL

.

Page 59: Removed formula for T

SL-CI

and T

SL-CO

.

Page 59: Removed formula for T

SL-IN

and T

SL-OUT

.

Page 59: Added examples for processing time calculation.

Page 65: Added Note reference to PROFIBUS Errors table.

Page 65: Reformatted PROFIBUS Errors table.

Page 66: Added note and renumbered notes.

Page 66: Updated LED indicator images and text.

Page 82: Added caption Reserved to bottom of image.

Page 82: Added note on I/O configuration mismatch error flags.

91

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