Siemens DP-ASi User Manual

Download

Page 1

Preface, Contents

SIMATIC

Distributed I/O System DP/ASi Link

Manual

Overview

ASi Basics

Configuration Options

Installing and Wiring DP/ASi Link

Configuring the DP/ASi Link

DP/ASi Link to S7

Operating Modes

Diagnostics and Error Handling

Appendices

1 2 3 4 5 6 7 8

EWA 4NEB 710 6055-02b

Edition 3

Technical Data

I/O Code

Parameterization Message

Configuration Message

Glossary, Index

A B C D

Page 2

Safety Guidelines

This manual contains notices which you should observe to ensure your own personal safety, as well as to protect the product and connected equipment. These notices are highlighted in the manual by a warning triangle and are marked as follows according to the level of danger:

Danger

indicates that death, severe personal injury or substantial property damage will result if proper precautions are not taken.

Warning

indicates that death, severe personal injury or substantial property damage can result if proper precautions are not taken.

Caution

indicates that minor personal injury or property damage can result if proper precautions are not taken.

Note

draws your attention to particularly important information on the product, handling the product, or to a particular part of the documentation.

Qualified Personnel

Correct Usage

Trademarks

The reproduction, transmission or use of this document or its contents is not permitted without express written authority. Offenders will be liable for damages. All rights, including rights created by patent grant or registration of a utility model or design, are reserved.

Siemens AG Automation Group Industrial Automation Systems P.O. Box 4848, D-90327 Nuremberg

The device/system may only be set up and operated in conjunction with this manual. Only qualified personnel should be allowed to install and work on this equipment. Qualified

persons are defined as persons who are authorized to commission, to ground, and to tag circuits, equipment, and systems in accordance with established safety practices and standards.

Note the following:

Warning

This device and its components may only be used for the applications described in the catalog or the technical description, and only in connection with devices or components from other manufacturers which have been approved or recommended by Siemens.

This product can only function correctly and safely if it is transported, stored, set up, and installed correctly, and operated and maintained as recommended.

SIMATIC and SIMATIC NET are registered trademarks of SIEMENS AG. Some of the other designations used in these documents are also registered trademarks; the own-

er’s rights may be violated if they are used be third parties for their own purposes.

hardware and software described. Since deviations cannot be precluded entirely, we cannot guarantee full agreement. However , the data in this manual are reviewed regularly and any necessary corrections included in subsequent editions. Suggestions for improvement are welcomed.

Technical data subject to change.  Siemens AG 1995

Siemens Aktiengesellschaft Order No. 6ES7 156-0AA00-8BA0

Distributed I/O System DP/ASi Link

Page 3

Preface

Purpose of manual

Manual contents

Applicability

The information contained in this manual will enable you to:

 install an Actuator Sensor Interface (ASi)  commission the DP/ASi link

The scope of delivery of MLFB 6ES7 156-0AA00-8AA0 consists of the manual:

Distributed I/O System

DP/ASi Link, Edition 3

 installing and wiring the distributed I/O system DP/ASi link  configuring the DP/ASi link  diagnostics and error handling  technical data

The present manual is valid for:

6ES7 156-0AA00-0XA0 03 6ES7 156-0AA01-0XA0 01

The present manual contains a description of all the functions incorporated in the DP/ASi link at the time this manual was published. We reserve the right to describe modified functions in a Product Information.

Distributed I/O System DP/ASi Link EWA 4NEB 710 6055-02b

Order No.

DP/ASi Link

Release (or Later)

DP/ASi Link

Manual

Edition

iii

Page 4

Preface

Changes from previous edition

Compared to the previous edition of this manual, Distributed I/O System DP/ ASi Link having the Order No. 6ES7 156-0AA00-8AA0, Edition 2, the fol-

lowing changes have been incorporated:

 DP/ASi link to S7  diagnostics during operation with an S7/M7 DP master

The DP/ASi link meets the requirements and criteria of the following stan-

Standards and approvals

dards and approvals:

 IEC 1131, Part 2  EN 50170 Volume 2, PROFIBUS  ASi: Actuator Sensor Interface Complete Specification  CE mark requirements  CSA, UL and FM approvals

You will find complete details of approvals and standards in appendix A.1.

How this manual fits in

This manual, DP/ASi Link, describes the DP/ASi link and the installation of the ASi.

The description of the PROFIBUS-DP and a master interface such as IM 308-C do not form a part of this manual. You will find further information on these subjects in the manual called Distributed I/O System ET 200, Order No. 6ES5 998-3ES12.

CD-ROM

Aids to accessing the manual

The Distributed I/O System DP/ASi Link can be acquired on a CD-ROM as an electronic manual.

You can quickly access specific information in the manual using the following access aids:

 At the beginning of the manual, you will find a complete list of manual

contents and lists of illustrations and tables contained in the whole document.

 Within the chapters, you will find information in the left-hand margin

giving you an overview of the subject that is dealt with.

 Following the appendices, there is a glossary in which technical terms

used in the manual are defined.

 At the end of the manual, you will find a comprehensive index enabling

rapid access to the information you require.

Distributed I/O System DP/ASi Link

EWA 4NEB 710 6055-02b

Page 5

Preface

Further support

Should you have any technical queries, please contact your Siemens representative at the agents or branch office responsible. You will find the address in the manuals describing the DP masters – for example, in the appendix “Siemens Worldwide” to the S7-300 Programmable Controller; Hardware and Installation manual, in catalogs and on CompuServe (GO AUTFORUM). In addition, you can contact our hotline by calling +49 (911) 895-7000 (Fax

7001). Should you require the type file or the GSD file, you can download them

over your modem by dialing +49 (911) 737972. In the event of queries or remarks concerning the manual itself, please com-

plete the Remarks Form at the end of the manual and return it to the address specified. We would kindly ask you to enter your own personal assessment of the manual on the Remarks Form.

T o help you get started with the distributed I/O system ET 200, we hold a ”KO-ET 200” workshop. If you are interested in attending the workshop, please contact your next area training center or the principal training center in Nuremberg, Germany, by dialing +49 911 895 3154.

Distributed I/O System DP/ASi Link EWA 4NEB 710 6055-02b

Page 6

Preface

Distributed I/O System DP/ASi Link

EWA 4NEB 710 6055-02b

Page 7

Preface

1 Overview

1.1 Using the DP/ASi Link 1-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1.2 What is the DP/ASi Link? 1-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1.3 View of the DP/ASi Link 1-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2 ASi Basics

2.1 Structure of ASi 2-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2.2 Elements of ASi 2-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2.3 Example Configuration of a Module 2-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2.4 Connecting Elements 2-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2.5 Interruption or Short-Circuit of the ASi cable 2-7. . . . . . . . . . . . . . . . . . . . . . . . .

3 Configuration Options

3.1 Summary of Configuration Options 3-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3.2 Configuration without T Connector and with Power Supply Connector 3-3. . .

3.3 Configuration with T Connector and with Power Supply Connector 3-4. . . . .

3.4 Configuration with Several Power Supply Connectors 3-6. . . . . . . . . . . . . . . . .

3.5 Configuration without Power Supply Connector 3-7. . . . . . . . . . . . . . . . . . . . . .

3.6 Configuration with Programmer Connector 3-9. . . . . . . . . . . . . . . . . . . . . . . . . .

4 Installing and Wiring the DP/ASi Link

4.1 Installation 4-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4.2 Electrical Wiring of DP/ASi Link 4-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4.2.1 Grounded Installation 4-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4.2.2 Ungrounded Installation 4-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4.2.3 Connecting the DP/ASi Link to ASi and PROFIBUS-DP 4-8. . . . . . . . . . . . . . .

4.3 Commissioning 4-10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4.3.1 Selecting the Station Number for PROFIBUS-DP 4-11. . . . . . . . . . . . . . . . . . . . .

4.3.2 Setting a Station Number on the DIP Switch Block 4-12. . . . . . . . . . . . . . . . . . . .

4.3.3 Station Number in EEPROM 4-13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Distributed I/O System DP/ASi Link EWA 4NEB 710 6055-02b

vii

Page 8

Contents

4.4 Additional Components for PROFIBUS-DP 4-15. . . . . . . . . . . . . . . . . . . . . . . . . .

4.4.1 T Connector (6ES5 762-2CT11) 4-16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4.4.2 Power Supply Connector (6ES5 762-2CS11) 4-17. . . . . . . . . . . . . . . . . . . . . . . .

4.4.3 Programmer Connector (6ES5 762-2CA12) 4-18. . . . . . . . . . . . . . . . . . . . . . . . .

4.4.4 Cables 4-19. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4.4.5 Terminating Resistor (6ES5 755-2CA11) 4-21. . . . . . . . . . . . . . . . . . . . . . . . . . . .

4.4.6 Adapter Cable (6ES5 755-8CA11) 4-22. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4.4.7 Wiring of PROFIBUS-DP 4-23. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5 Configuring the DP/ASi Link

5.1 Configuring – for Example with COM ET 200 Windows

(Version 2.0 or Later) 5-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5.2 Example Using COM ET 200 Windows (Version 2.0 or Later) 5-5. . . . . . . . . .

5.3 Operating the DP/ASi Link with an External Master 5-6. . . . . . . . . . . . . . . . . . .

5.3.1 Configuring with Address Space Optimization 5-7. . . . . . . . . . . . . . . . . . . . . . . .

5.3.2 Simple Configuration 5-8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5.3.3 Default Start–Up 5-9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

6 DP/ASi Link to S7

6.1 Reading Data Records with SFC 59 ”RD_REC” 6-3. . . . . . . . . . . . . . . . . . . . . .

6.2 Writing Data Records with SFC 58 “WR_REC” 6-6. . . . . . . . . . . . . . . . . . . . . . .

6.3 Example of Re-assigning Parameters to an ASi Slave with S7 6-7. . . . . . . . .

7 Operating Modes

7.1 Automatic Start-up of DP/ASi Link 7-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

7.2 Normal Operation 7-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

7.3 Automatic Programming 7-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

8 Diagnostics and Error handling

8.1 Diagnostics by Means of LEDs of DP/ASi Link 8-2. . . . . . . . . . . . . . . . . . . . . . .

8.2 Diagnostics by Means of User Program 8-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . .

8.2.1 Diagnostic Fundamentals in Operations with an IM308C 8-7. . . . . . . . . . . . . .

8.2.2 Diagnostic Fundamentals in Operations with an S7/M7 DP Master

(STEP 7) or with Another PROFIBUS-DP Master 8-9. . . . . . . . . . . . . . . . . . . . .

8.2.3 Structure of Diagnosis 8-10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

8.2.4 Contents of DP Standard Part 8-12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

8.2.5 Module and First Station Diagnoses for the IM308C 8-14. . . . . . . . . . . . . . . . . .

8.2.6 Module and First Station Diagnoses for the S7/M7 DP Master 8-16. . . . . . . . .

8.2.7 Second Station Diagnosis for the IM308C 8-18. . . . . . . . . . . . . . . . . . . . . . . . . . .

8.2.8 Second Station Diagnosis for the S7/ M7 DP Master 8-20. . . . . . . . . . . . . . . . . .

8.2.9 Diagnostics for a Default Start-Up with the IM308C

(6ES7 156 0AA00-0XA0 or higher, Issue 3) 8-21. . . . . . . . . . . . . . . . . . . . . . . . . .

viii

Distributed I/O System DP/ASi Link

EWA 4NEB 710 6055-02b

Page 9

A Technical Data

A.1 Standards and Approvals A-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

A.2 General Technical Data A-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

B I/O Code C Parameterization Message

C.1 Structure of the Parameterization Message in Configuring with Address

Optimization C-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

C.2 Parameterization Data for ASi Slaves C-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

C.3 Optimizing Address Assignment C-8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

C.4 Structure of the Parameterization Message in Simple Configuration C-10. . . .

D Configuration Message

D.1 Structure of the Configuration Message with a Default Start-Up D-2. . . . . . . .

D.2 Structure of the Configuration Message with a Default Start-Up D-3. . . . . . . .

D.3 Structure of the Configuration Message in Simple Configuration D-7. . . . . . . .

Contents

Glossary Index

Distributed I/O System DP/ASi Link EWA 4NEB 710 6055-02b

Page 10

Contents

Figures

1-1 Integrating the DP/ASi link 1-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1-2 Components 1-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1-3 View of DP/ASi link 1-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2-1 Example installation of an ASi 2-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2-2 View of module, example of an upper part and a lower part 2-5. . . . . . . . . . . .

3-1 Legend 3-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-2 PROFIBUS-DP and power supply looped through on DP/ASi link 3-3. . . . . . .

3-3 PROFIBUS-DP and power supply looped through by means of T

connector 3-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-4 Rule for installation with a T connector 3-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-5 Configuration with several power supply connectors 3-6. . . . . . . . . . . . . . . . . .

3-6 PROFIBUS-DP looped through T connectors –

external power supply fed separately to every slave station 3-7. . . . . . . . . . . .

3-7 Rule for installation with a T connector 3-8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-8 Configuration with programmer connector 3-9. . . . . . . . . . . . . . . . . . . . . . . . . . .

4-1 Grounded installation of DP/ASi link 4-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4-2 Ungrounded installation of DP/ASi link 4-7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4-3 Location of DIP switch block 4-12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4-4 T connector 4-16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4-5 Terminating resistor 4-21. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4-6 Adapter cable 4-22. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

8-1 Location of LEDs of DP/ASi link 8-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

A-1 DP/ASi link; dimension drawing A-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

C-1 Sorting ASi slaves into address space template C-9. . . . . . . . . . . . . . . . . . . . . .

Distributed I/O System DP/ASi Link

EWA 4NEB 710 6055-02b

Page 11

T ables

1-1 Length of the PROFIBUS bus cable as a function of the baud rate on the

PROFIBUS DP bus 1-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-1 Configuration options 3-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-2 Length of bus cable when PROFIBUS-DP and power supply

are fed on the same bus cable 3-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-3 Length of the spur line of the programmer connection as a function of the

baud rate on the PROFIBUS-DP bus 3-10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4-1 Spacing between DP/ASi link and cable duct 4-2. . . . . . . . . . . . . . . . . . . . . . . .

4-2 Pin assignment of ASi terminal connection 4-8. . . . . . . . . . . . . . . . . . . . . . . . . .

4-3 Pin assignment of 12-pin device connector 4-9. . . . . . . . . . . . . . . . . . . . . . . . .

4-4 Station number selection on DIP switch block 4-11. . . . . . . . . . . . . . . . . . . . . . .

4-5 PROFIBUS-DP cables 4-19. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4-6 Order Numbers for cables in standard lengths

(core cross-section 0.75 mm

, maximum current loading 4 A) 4-20. . . . . . . . . .

4-7 Order Numbers for cables having a Z number

(core cross-section 0.75 mm

, maximum current loading 4 A) 4-20. . . . . . . . . .

4-8 Order Number for circular connector 4-23. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5-1 Assigning the slave to the ASi address, an example 5-5. . . . . . . . . . . . . . . . . .

5-2 I/O Area Assignment 5-10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

6-1 Parameters for SFC 59 “RD_REC” 6-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

6-2 Parameters for SFC 58 “WR_REC” 6-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

6-3 Structure of data record 140: Read lists and flags 6-3. . . . . . . . . . . . . . . . . . . .

6-4 Structure of data record 141: Read parameter echoes of ASi slaves 6-4. . . .

6-5 Structure of data record 2: Read response 6-5. . . . . . . . . . . . . . . . . . . . . . . . . .

6-6 Error codes in byte 1 of data record 2 6-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

6-7 Structure of data record 142: Write parameters to ASi slaves 6-6. . . . . . . . . .

6-8 Structure of data record 143: Modify operating address of ASi slave 6-6. . . .

6-9 Srtructure of data record 144: Set DP/ASi link to “Offline” mode 6-6. . . . . . . .

8-1 Meanings of display LEDs 8-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

8-2 LED display for modes and bus faults on PROFIBUS-DP 8-3. . . . . . . . . . . . .

8-3 LED display for faults on ASi side 8-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

8-4 Combination of several LEDs 8-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

8-5 Parameters for SFC 13 “DPNRM_DG” 8-9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

8-6 Structure of diagnostic message 8-10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

8-7 Diagnostic message structure for the S7/M7 DP master 8-11. . . . . . . . . . . . . .

8-8 Structure of station status 1 8-12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

8-9 Structure of station status 2 8-12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

8-10 Structure of bytes 6 to 11 of diagnostic message 8-14. . . . . . . . . . . . . . . . . . . . .

8-11 Structure of diagnosis, bytes 12 to 15 8-15. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

8-12 Structure of bytes 6 to 12 of diagnostic message for operations with

IM308C 8-16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

8-13 Structure of diagnosis, bytes 13 to 16 8-17. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

8-14 Structure of bytes 16 to 19 in diagnostic message 8-18. . . . . . . . . . . . . . . . . . .

8-15 Structure of diagnostic data, bytes 20 and 21 8-18. . . . . . . . . . . . . . . . . . . . . . .

8-16 Assignment of ASi address to bit positions, bytes 22 to 25 8-19. . . . . . . . . . . . .

Contents

Distributed I/O System DP/ASi Link EWA 4NEB 710 6055-02b

Page 12

Contents

8-17 Structure of bytes 17 to 19 in diagnostic message 8-20. . . . . . . . . . . . . . . . . . .

8-18 Assignment of the ASi address to bit positions, bytes 20 to 23 8-20. . . . . . . . .

8-19 Basic structure of diagnostic message 8-21. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

8-20 Indication of failed ASi slaves 8-21. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

8-21 Actual ASi configuration 8-22. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

B-1 I/O code of ASi slaves B-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

C-1 Structure of the DP standard part in parameterization message C-2. . . . . . . .

C-2 Structure of station status in parameterization message C-3. . . . . . . . . . . . . .

C-3 Structure of byte 7 for initialization C-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

C-4 Default values of bytes 8 to 14 for initialization C-4. . . . . . . . . . . . . . . . . . . . . .

C-5 Value of control byte (byte 15) C-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

C-6 Parameterization data for an ASi slave C-6. . . . . . . . . . . . . . . . . . . . . . . . . . . .

C-7 Assignment of parameterization data of ASi slaves to byte numbers of

parameterization message C-7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

C-8 Assigning the DP standard part C-10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

C-9 Default values of bytes 8 to 14 for initialization C-10. . . . . . . . . . . . . . . . . . . . . . .

C-10 Definition of response when setpoint and actual configurations differ C-10. . . .

C-11 I/O code of configured ASi slaves C-11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

D-1 Configuration message structure for a default start-up D-2. . . . . . . . . . . . . . . .

D-2 Default assignment of bytes 0 to 14 of the configuration message,

shown in hexadecimal numbers D-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

D-3 Value of identification byte in configuration message D-4. . . . . . . . . . . . . . . . .

D-4 Value of the I/O length byte in configuration message D-4. . . . . . . . . . . . . . . .

D-5 Configuration message for masters with reduced parameter assignment D-7

D-6 IDs for the variable part of the configuration message D-7. . . . . . . . . . . . . . . . .

xii

Distributed I/O System DP/ASi Link

EWA 4NEB 710 6055-02b

Page 13

Overview

Introduction

Devices and modules

In this chapter

You use the DP/ASi link to interface the Actuator Sensor Interface to the PROFIBUS-DP.

The DP/ASi link operates as a DP slave and requires a DP master – for example, an IM 308-C.

In Section You Will Find on Page

1.1 Using the DP/ASi Link 1-2

1.2 What is the DP/ASi Link? 1-3

1.3 View of the DP/ASi Link 1-5

Distributed I/O System DP/ASi Link EWA 4NEB 710 6055-02b

1-1

Page 14

Overview

1.1 Using the DP/ASi Link

Definition

ASi and PROFIBUS-DP

The DP/ASi link connects the Actuator Sensor Interface (referred to in the following as ASi) to the PROFIBUS-DP.

PROFIBUS-DP conforms to the PROFIBUS-DP standard EN 50170 Volume 2, PROFIBUS; the term DP means ”distributed I/O”.

You will find an explanation of how the ASi works in Chapter 2.

Higher level

slave

DP master

PROFIBUS-DP

DP/ASi

link

ASi

Explanation

ASi master

IP 66/67

Installation

1-2

Lowest level

Figure 1-1 Integrating the DP/ASi link

SensorActuator

Up to 31 binary actuators and sensors are networked over the ASi cable. The DP/ASi link is used to interface the ASi cable to PROFIBUS-DP. You can operate up to 122 DP/ASi links to PROFIBUS-DP, should you use the IM 308-C, for example, as the DP master.

ASi allows one ASi master. The DP/ASi link is the ASi master.

The DP/ASi link meets the IP 66/IP 67 degree of protection.

Owing to the IP 66/IP 67 degree of protection, you can use the DP/ASi link in a harsh industrial environment. There is no preferred mounting location for the DP/ASi link.

Distributed I/O System DP/ASi Link

EWA 4NEB 710 6055-02b

Page 15

1.2 What is the DP/ASi Link?

Overview

Definition

Overview

Components

The DP/ASi link connects the actuator sensor interface (ASi) to the PROFIBUS-DP field bus. In doing so, the protocols of the bus systems are converted.

The DP/ASi link belongs to the Distributed I/O. The DP/ASi link is a DP slave. In addition, other components belong to the

DP/ASi link. Not all components are necessarily required for operation:

T connector

Power supply connector

Programmer connector

Bus cable

Power supply cable

Bus cable incl. power supply cable

cntr

2-core

3-core

5-core

Terminating resistor

Adapter cable

Figure 1-2 Components

Master interface

The DP/ASi link can be operated, for example, with the following master interface module and COM ET 200 version:

 IM 308-C (version 1 or later)  COM ET 200 Windows (version 2.0 or later).

Characteristics

The DP/ASi link has the following characteristics:

 IP 66/IP 67 degree of protection

 Compact design

Distributed I/O System DP/ASi Link EWA 4NEB 710 6055-02b

The DP/ASi link is installed in degrees of protection IP 66 and IP 67. When assembling, note that IP 66/IP 67 is insured only when you follow the rules on installation set out in section 4.1.

The DP/ASi link is suitable for applications requiring little space. Its dimensions are 2058057 mm plus the T connector.

1-3

Page 16

Overview

 Connections

– PROFIBUS-DP – ASi cable – 24 V DC power supply

 Optical isolation between PROFIBUS-DP and ASi  Direct ET 200 Handheld connection possible for setting the station num-

ber (using an adapter cable)

 ASi diagnostics using LEDs

The diagnosis can also be read using the DP master.

 The DP/ASi link has LEDs with the following meanings

– RUN – BF (bus error) – ASi POWER FAIL (ASi power supply failure) – CONFIG ERROR (configuration error) – AUTOPROG AV (automatic programming possible) – CONFIG MODE (configuration mode) – ASi-SLAVE FAIL (5 LEDs for displaying the failed ASi slave)

 The DP/ASi link can be operated on the PROFIBUS-DP with a baud rate

of up to 12000 kBd.

 Length of PROFIBUS bus cable

The following values apply to installation of the DP/ASi link for the PROFIBUS bus cable as a function of the baud rate on the bus.

Table 1-1 Length of the PROFIBUS bus cable as a function of the baud rate on the

PROFIBUS DP bus

Baud Rate Max. Length of Bus Cable

< 187.5 kBd 1200 m per segment

187.5 kBd 1000 m per segment 500 kBd 400 m per segment

1500 kBd 200 m per segment

> 1500 kBd 100 m per segment

1-4

Distributed I/O System DP/ASi Link

EWA 4NEB 710 6055-02b

Page 17

1.3 View of the DP/ASi Link

Overview

View

SINEC L2-DP + PS

2 connections for

PROFIBUS-DP

Fig. 1-3 contains an illustration of the DP/ASi link. You will find detailed descriptions of the different areas of the DP/ASi link in

Chapter 4.

DP / ASi LINK

RUN BF

124816+

+ + + = ASi SLAVE FAIL

LEDs Connection

ASi POWER FAIL CONFIG ERROR

AUTOPROG A V CONFIG MODE

6ES7 156-0AA01-0XA0

Screw-type cover

for DIP switch

block

ASi

123456

for ASi cable

+ 1

Figure 1-3 View of DP/ASi link

Distributed I/O System DP/ASi Link EWA 4NEB 710 6055-02b

1-5

Page 18

Overview

1-6

Distributed I/O System DP/ASi Link

EWA 4NEB 710 6055-02b

Page 19

ASi Basics

Introduction

Definition

Overview

In this chapter

If you wish to acquire a general idea of ASi, this is the right chapter for you. If you are already familiar with ASi, you can skip this chapter.

The Actuator Sensor Interface is a wiring system to which a master and up to 31 slaves can be connected.

The ASi master (the DP/ASi link) periodically transfers input and output data from and to all the ASi slaves within a period not exceeding 5 ms.

The slaves may be configured as modules or intelligent actuators and sensors. Intelligent sensors are BEROs, for instance.

After you have studied this chapter, you will know how the ASi is structured and how it operates.

In Section You Will Find on Page

2.1 Structure of ASi 2-2

2.2 Elements of ASi 2-3

2.3 Example Configuration of a Module 2-5

2.4 Connecting Elements 2-6

2.5 Interruption or Short-Circuit of the ASi Cable 2-7

Distributed I/O System DP/ASi Link EWA 4NEB 710 6055-02b

2-1

Page 20

ASi Basics

2.1 Structure of ASi

Structure

You can install the ASi as branched with a single 2-wire cable. You connect the DP/ASi link, the different ASi slaves and the ASi power supply unit to any point on the ASi cable.

Example installa-

Fig. 2-1 shows an example installation of an ASi.

tion

Connection of DP/ASi link by means of ASi cable

Remote ASi slave with external power supply unit

ASi with star termination

You can also connect the ASi power supply unit directly to an ASi slave.

To PROFIBUS-DP

DP/ASi link

ASi slave

ASi distribu-

tion unit

ASi power

supply unit

ASi distribu-

tion unit

ASi slave ASi slave

ASi slave

Ext. power

supply unit

Figure 2-1 Example installation of an ASi

ASi slave

2-2

Distributed I/O System DP/ASi Link

EWA 4NEB 710 6055-02b

Page 21

2.2 Elements of ASi

ASi Basics

DP/ASi link

ASi slave

The DP/ASi link is the ASi master. It controls communication in the ASi. The DP/ASi link periodically exchanges data with the ASi slaves.

ASi slaves are the input and output channels of the ASi. ASi slaves transfer data to the DP/ASi link when requested to do so by the DP/ASi link. ASi slaves are:

 Modules

You connect up to 4 binary actuators and sensors to a single module. A supply voltage of 24 VDC is available for the actuators and sensors at

the output of the modules. You can combine different upper and lower parts to form a module, de-

pending on the application. The configuration of a module depends on the:

– ASi cable used – number of inputs and outputs (I/O code) – use of an external power supply unit You will find an example of a module in section 2.3.

 Intelligent actuators or sensors

You connect intelligent actuators and sensors directly to the ASi cable.

I/O code

ID code

You differentiate between the individual ASi slaves by means of an ASi address that you can set. You set the ASi address, for example, by using the ASi addressing unit (Order No: 3RX9 400-0AA00).

All ASi slaves are supplied ex works with an ASi address of 0. This ASi address is not enabled within the ASi for data exchange.

The I/O code contains the definition of the distribution of the inputs and outputs of the different ASi slaves. You will find the complete I/O code in Appendix B.

You choose the ASi slave type according to the distribution of inputs and outputs. From the viewpoint of the DP/ASi link, sensors are inputs and actuators are outputs.

The ID code is an additional code that be optionally used for any ASi slave. The ID code is specified for every ASi slave. The default value for the ID code is 0.

Distributed I/O System DP/ASi Link EWA 4NEB 710 6055-02b

2-3

Page 22

ASi Basics

ASi distribution unit

ASi cable

You use the ASi distribution unit when you

 branch the ASi cable without using an ASi slave  reroute the ASi cable to a normal 2-wire cable.

The ASi distribution unit is designed as a module and is not assigned an ASi address.

You connect the different elements via an ASi cable that is protected against polarity reversal.

Within the ASi, you can branch the ASi cable over a total length of up to 100 m. You can connect your elements to the ASi cable at any points you like.

Caution

If you connect the ASi cable to a ring feeder or roll up the ASi cable, reliable data transfer is not assured.

According to the ASi standard, multiple interconnections of the ASi cable are prohibited, as is rolling it up (not even as a standby).

ASi power supply unit

External power supply

For the ASi power supply, you require a separate ASi power supply unit. The ASi power supply unit is connected directly to the ASi cable. Data are superimposed on the supply voltage. The ASi power supply unit has data decoupling and supplies a voltage of approximately 30 VDC.

ASi power supply units are available in different protection classes. Apart from power supply units in IP 20, we also provide a power supply unit in IP 66/IP 67. You can acquire it by ordering 6EP1 632-1AL01.

Caution

If you overload the power supply unit, either erroneous data transfer takes place on the ASi cable or none at all.

If the supply voltage falls, it is possible that individual ASi slaves will not operate properly. Please pay attention to the data sheets for the ASi slaves you are using.

Do not load the ASi power supply unit above its rated output.

The external power supply is optically isolated from the ASi power supply. You use an external power supply when an ASi slave requires a higher load

voltage or a higher load current.

2-4

You connect an external power supply unit directly to the module concerned.

Distributed I/O System DP/ASi Link

EWA 4NEB 710 6055-02b

Page 23

2.3 Example Configuration of a Module

ASi Basics

Module configuration

Every module consists of an upper part and a lower part. As an example, you can see an illustration in Fig. 2-2 of an upper part with

two inputs and two outputs and a lower part for the ASi cable without an interface for an external power supply.

The upper part is attached to the lower part with four attaching screws (see remark g).

Module lower

part

Module upper

part

Contact spikes with two contacts per core

ASi cable aperture

Seals for the cable apertures that are not required

Actuator/sensor connection with M12 bush

Display LEDs for input and output

Drilled through-hole for attaching the module

Screws for attaching the upper part to the lower part

Figure 2-2 View of module, example of an upper part and a lower part

Distributed I/O System DP/ASi Link EWA 4NEB 710 6055-02b

2-5

Page 24

ASi Basics

2.4 Connecting Elements

Connecting

Penetration technique

Contacts for 2-wire cable

You connect the elements of the ASi by attaching the modules to the ASi cable. You do not have to operate the ASi cable for this.

The ASi cable is connected to the DP/ASi link by means of a connector.

In section 2.3, Fig. 2-2, you can see an illustration of an example of a module.

You place the ASi cable in the module lower part. By attaching the module upper part to the lower part, the two contact spikes per core penetrate the insulation of the ASi cable and establish the contact.

You will find comprehensive installation instructions in the description of the module that you wish to integrate in the ASi.

Should you wish to use a normal 2-wire cable instead of the ASi cable, connect it to the module in accordance with the manufacturer’s specifications.

2-6

Distributed I/O System DP/ASi Link

EWA 4NEB 710 6055-02b

Page 25

2.5 Interruption or Short-Circuit of the ASi cable

ASi Basics

ASi short-circuit

ASi interruption

ASi slave reaction

If the ASi cable is short-circuited due to pinching or fraying of the insulation, data exchange no longer takes place on the ASi cable.

If the ASi cable is interrupted, you can no longer address the actuators or sensors which, as viewed from the DP/ASi link, are located downstream of the point of interruption.

The actuators and sensors upstream of the point of interruption are still able to operate.

Warning

If the ASi fails completely or partially, the DP/ASi link can no longer address the actuators and sensors affected by the failure.

Data is no longer exchanged with the ASi slaves affected.

If an ASi slave detects a failure of the ASi, the response depends on the ASi slave concerned.

Warning

There is a possibility of the ASi slave retaining its latest state after a failure – for instance, outputs that have been set remain set.

Study the description of the ASi slave.

Distributed I/O System DP/ASi Link EWA 4NEB 710 6055-02b

2-7

Page 26

ASi Basics

2-8

Distributed I/O System DP/ASi Link

EWA 4NEB 710 6055-02b

Page 27

Configuration Options

Introduction

Tip

In this chapter

At this point we will show you how you integrate the DP/ASi link into the PROFIBUS-DP, and what you have to bear in mind when you do so.

The power supply (PS) described in this chapter is the 24 VDC power supply of the DP/ASi link, which is required to operate it.

If you are already familiar with the configuration options of the PROFIBUSDP – for example, from the Distributed I/O System ET 200C manual, you can skip this chapter.

In this chapter we take a look at the PROFIBUS-DP side of the DP/ASi link.

In Section You Will Find on Page

3.1 Summary of Configuration Options 3-2

3.2 Configuration without T Connector and with Power Supply Connector

3.3 Configuration with T Connector and with Power Supply Connector

3.4 Configuration with Several Power Supply Connectors 3-6

3.5 Configuration without Power Supply Connector 3-7

3.6 Configuration with Programmer Connector 3-9

3-3

3-4

Distributed I/O System DP/ASi Link EWA 4NEB 710 6055-02b

3-1

Page 28

g p pp y

(y p

Configuration Options

3.1 Summary of Configuration Options

Configuration options

PROFIBUS-DP presents you with different configuration options for combining the PROFIBUS-DP and the 24 V power supply of the devices. The following T able 3-1 shows the different options.

Table 3-1 Configuration options

Power Supply Connector for Device’s

Configuration Refer to

Internal Power Consumption

Configuration with power supply connector

Configuration without T connector Section 3.2 Configuration with T connector Section 3.3 Configuration with programmer

connector

Configuration with several power supply connectors (the degree of expansion is limited with a PS connector)

Configuration without power supply connector (every L2 station has a separate power supply)

Configuration without power supply connector

Configuration with programmer

connector

Legend for following sections

Configuration options are described in the following using illustrations for a possible installation. We use the following legend:

Section 3.6

Section 3.4

Section 3.5

Section 3.6

3-2

T connector

Power supply connector

Programmer connector

Bus cable

Power supply (PS) cable

Bus cable incl. PS cable

cntr PG

2-core 3-core (see note)

5-core

Terminating resistor

Adapter cable

Figure 3-1 Legend

Note

The 2-core bus cable must not be incorporated between the power supply unit and a load.

If you incorporate the bus cable in the power supply cable, an inadmissible spur line occurs. Data transfer is no longer assured in the PROFIBUS-DP.

Distributed I/O System DP/ASi Link

EWA 4NEB 710 6055-02b

Page 29

Configuration Options

3.2 Configuration without T Connector and with Power Supply Connector

Definition

Advantage

Constraint

Cables

In a configuration with a looped-through field bus and a power supply, the DP/ASi link is connected directly to the PROFIBUS-DP.

The power supply is gated by means of the power supply connector with the PROFIBUS-DP in a single cable.

You do not require a T connector. The power supply is fed along the bus cable, i.e. an external power supply of

the slave station is not required.

If a slave station is disconnected from the bus, ”bus traffic” is interrupted for the slave stations that follow it.

Bus traffic may be disrupted for the slave stations still on the bus owing to the absence of the terminating resistor.

The degree of expansion with a power supply connector is limited (refer to section 3.4).

You use cables of different design for the installation:

 If you wish to use prefabricated Siemens cables, please turn to sec-

tion 4.4.4.

 If you wish to prepare your own cables, please turn to section 4.4.7.

Installation

Distributed I/O System DP/ASi Link EWA 4NEB 710 6055-02b

Fig. 3-2 shows a possible installation for the configuration with a power supply connector and without a T connector:

Figure 3-2 PROFIBUS-DP and power supply looped through on DP/ASi link

External

power supply

PROFIBUS-DP

PS-

cntr

DP/ASi link

3-3

Page 30

Configuration Options

3.3 Configuration with T Connector and with Power Supply Connector

Definition

Advantage

Constraint

Cables

Installation

In a configuration with a power supply connector and a T connector, the DP/ ASi link is connected by means of a T connector to the PROFIBUS-DP.

The power supply is gated by means of the power supply connector with the PROFIBUS-DP in a single cable.

A slave station can be disconnected at any time from the bus without the ”bus traffic” being interrupted for the other slave stations.

The power supply is fed along the bus cable, i.e. an external power supply of the slave station is not required.

The degree of expansion with a PS connector is limited (refer to section 3.4).

You use cables of different design for the installation:

 If you wish to use prefabricated Siemens cables, please turn to sec-

tion 4.4.4.

 If you wish to prepare your own cables, please turn to section 4.4.7.

Fig. 3-3 shows a possible installation for the configuration with a power supply connector and with a T connector:

3-4

External power supply

cntr

PROFIBUS-DP

Figure 3-3 PROFIBUS-DP and power supply looped through by means of T

connector

DP/ASi link

Distributed I/O System DP/ASi Link

EWA 4NEB 710 6055-02b

Page 31

Configuration Options

Rules for the T connector

With the DP/ASi link, spur lines are not authorized except for the programmer or the ET 200 Handheld. This means that the 12-pin plug of the T connector is always screwed directly to the bus connection of a module.

Without spur line With spur line

Figure 3-4 Rule for installation with a T connector

Distributed I/O System DP/ASi Link EWA 4NEB 710 6055-02b

3-5

Page 32

Configuration Options

3.4 Configuration with Several Power Supply Connectors

Constraint for installation with one power supply connector

Remedy

In configurations with a power supply connector (refer to sections 3.2 and

3.3), the power supply is fed along the bus cable. This configuration is limited by the following factors:

 If the power supply and the PROFIBUS-DP field bus are fed on the same

cable, the following values apply to the length of the bus cable between the power supply connector and the last slave station connected:

Table 3-2 Length of bus cable when PROFIBUS-DP and power supply

are fed on the same bus cable

Current Loading Max. Cable Length

< 1 A 80 m < 2 A 40 m < 4 A 20 m

 Not more than 4 A may be looped through the power supply connector.

The input power of the ET 200 modules and of the DP/ASi link limits the number of modules that you can connect.

You make allowance for several power supply connectors per segment. Fig. 3-5 shows a possible installation for the configuration with several power supply connectors.

3-6

External

power supply

PROFIBUS-DP

External

power supply

In this case you can use a 2- or 5-core cable, because the two ”left” connections for ”external power supply” and ”PROFIBUS-DP” are not bridged.

Figure 3-5 Configuration with several power supply connectors

PS-

cntr

PROFIBUS-DP

PS-

cntr

DP/ASi link

Distributed I/O System DP/ASi Link

EWA 4NEB 710 6055-02b

Page 33

3.5 Configuration without Power Supply Connector

Configuration Options

Definition

Advantage

Cables

Installation

In a configuration with a separate power supply, every slave station is supplied with power separately. This power supply must not be fed on the bus cable.

The T connector for connecting PROFIBUS-DP is imperative for continuous looping of the PROFIBUS-DP.

You do not feed the power supply over the bus (2-core instead of a 5-core cable).

A slave station can be disconnected at any time from the bus without ”bus traffic” being interrupted for the slave stations beyond it, because the PROFIBUS-DP is looped through T connectors.

You use cables of different design for the installation:

 If you wish to use prefabricated Siemens cables, please turn to sec-

tion 4.4.4.

 If you wish to prepare your own cables, please turn to section 4.4.7.

Fig. 3-6 shows a possible installation for the configuration without a power supply connector.

Figure 3-6 PROFIBUS-DP looped through T connectors –

Distributed I/O System DP/ASi Link EWA 4NEB 710 6055-02b

PROFIBUS-DP

Two-wirecable (!!)

external power supply fed separately to every slave station

External power supply

DP/ASi link

External power supply

DP/ASi link

3-7

Page 34

Configuration Options

Rules for the T connector

Without spur line With spur line

Figure 3-7 Rule for installation with a T connector

3-8

Distributed I/O System DP/ASi Link

EWA 4NEB 710 6055-02b

Page 35

3.6 Configuration with Programmer Connector

Configuration Options

Definition

Connecting the programmer

Installation

If you wish to operate the programmer on the PROFIBUS-DP in an IP 66/IP 67 environment, you require a programmer connector.

T o connect the programmer to the programmer connector, you require two plug-in connectors:

 adapter cable  programmer connecting cable

An ET 200 Handheld cannot be connected to the programmer connector. The ET 200 Handheld can be plugged only into the bus connection of a slave station (using the adapter cable).

Fig. 3-8 shows a possible installation for the configuration with a programmer connector.

External power supply

PROFIBUS-DP

Adapter cable

cntr.

DP/ASi link

IP 66/IP 67 world

Figure 3-8 Configuration with programmer connector

Distributed I/O System DP/ASi Link EWA 4NEB 710 6055-02b

Programmer connecting cable

DP/ASi link

IP 20 world

3-9

Page 36

Configuration Options

Rule for connection of programmer connector

Both the 2-core cable and the 5-core cable can be connected to the programmer connector.

A programmer connector may be placed anywhere on the PROFIBUS-DP field bus. When doing so, pay attention to the following:

 Since a terminating resistor cannot be inserted, the programmer connector

must not be located at the ends of the bus line.

 You may place several programmer connectors on the bus. However, you

may connect only one programmer to one of the programmer connectors on the bus, since the programmer represents a node having the station number 0.

 For connecting a programmer, the following values apply to the length of

the spur line as a function of the baud rate on the PROFIBUS-DP bus:

Table 3-3 Length of the spur line of the programmer connection as a function of

the baud rate on the PROFIBUS-DP bus

Baud Rate Max. Length of Spur Line

< 500 kBd Max. 32  3 m

Max. 10  5 m Max. 1  10 m

1500 kBd Max. 5  2 m

(3 m spacing) or PROFIBUS bus terminal

> 1500 kBd Max. 1  1.5 m

3-10

Distributed I/O System DP/ASi Link

EWA 4NEB 710 6055-02b

Page 37

Installing and Wiring the DP/ASi Link

Introduction

Objective

In this chapter

In this chapter you will learn how the DP/ASi link is installed mechanically and electrically.

When you have worked your way through this chapter, you will be in a position to install and connect the DP/ASi link. You will know what accessories you require to perform these jobs.

In Section You Will Find on Page

4.1 Installation 4-2

4.2 Electrical Wiring of DP/ASi Link 4-3

4.3 Commissioning 4-10

4.4 Additional Components for PROFIBUS-DP 4-15

Distributed I/O System DP/ASi Link EWA 4NEB 710 6055-02b

4-1

Page 38

Installing and Wiring the DP/ASi Link

4.1 Installation

Rules

IP 66/IP 67 degree of protection

Installing

The IP 66/IP 67 degree of protection can be guaranteed for the DP/ASi link only under the following conditions:

 The supporting surface for the DP/ASi link must be level (without distor-

tions).

 You must always cover the unused connection with the enclosed metal

cap. IP 66/IP 67 is not guaranteed with the transparent transit protective cap.

Pay attention to the following note so that the IP 66/IP 67 degree of protection can be insured.

Note

Before commissioning, check that all covers on the DP/ASi link have been tightened.

You are free to chose where you wish to install the DP/ASi link. You can install the DP/ASi Link at any inclination.

Pay attention to the minimum spacing between the DP/ASi link and the cable duct:

4-2

Table 4-1 Spacing between DP/ASi link and cable duct

Between DP/ASi Link and Cable Duct...

Spacing

... there is no T connector 10 cm

... there is a T connector 15 cm

Install the DP/ASi link using the drilling jig at the end of the manual with two fastening screws (M4 DIN 912) on an even surface or on supporting bars.

The fastening screws on the housing are captive screws. You require an Allan key 3.0 DIN 911 for installation.

Distributed I/O System DP/ASi Link

EWA 4NEB 710 6055-02b

Page 39

4.2 Electrical Wiring of DP/ASi Link

Installing and Wiring the DP/ASi Link

Introduction

Characteristics

In this section

You can wire the 24 V supply to the DP/ASi link either as a grounded or an ungrounded installation, depending on the requirements of your system installation.

The DP/ASi link exhibits the following characteristics:

 PROFIBUS-DP and the ASi cable are floating with reference to the 24 V

supply of the DP/ASi link

 PROFIBUS-DP and the ASi cable are optically isolated with reference to

the 24 V supply and to each other

 PROFIBUS-DP and the ASi cable are optically isolated from the

DP/ASi link

In Section You Will Find on Page

4.2.1 Grounded Installation 4-4

4.2.2 Ungrounded Installation 4-6

4.2.3 Connecting the DP/ASi Link to ASi and PROFIBUS-DP 4-8

Distributed I/O System DP/ASi Link EWA 4NEB 710 6055-02b

4-3

Page 40

Installing and Wiring the DP/ASi Link

4.2.1 Grounded Installation

Introduction

Rules

With grounded installation of the DP/ASi link, you have to connect the reference potential of the electronics section to the protective conducter.

Note that in this case only the power supply for the electronics (M24V) is grounded. The PROFIBUS-DP bus and the AS interface are not grounded by this action.

For grounded installation you must pay attention to the following points:

 You have to provide a master switch (1) conforming to VDE 0100 for the

DP/ASi link.

 For the connection of the external power supply (24 VDC) to the supply

system, you require a fuse (2).

 For the power supply, use a Siemens Series 6EV1 external power supply

(refer to catalog ET 1). If you connect other external power supplies (24 VDC), make sure that

the voltage is between 20 and 30 V (including ripple). The external power supply must generate a functional extra-low voltage with safe electrical isolation in accordance with VDE 0106, Part 101. For non-stabilized external power supplies, you require a backup capacitor (200 F per 1 A load current, (3)).

 Provide a separable connection (4) to the protective conductor on the ex-

ternal power supply (terminal M) in the secondary circuit.

 The 24 VDC supply should be fused separately (5).  With both grounded and ungrounded installation,connect the PI connec-

tion of the DP/ASi link in a low-resistance manner to the protective conductor (6).

On the right side of the DP/ASi link and of the power supply connector there is a screw for connecting the conductor conducter.

The protective conductor terminal of the DP/ASi link is connected internally to a pin 9 of the circular connector (refer to T able 4-3).

 All machine parts have to be grounded.  Use a minimum diameter of 10 mm

ground connections.

for equipotential bonding and

4-4

Distributed I/O System DP/ASi Link

EWA 4NEB 710 6055-02b

Page 41

Installing and Wiring the DP/ASi Link

Installation

Grounded installation of the DP/ASi link is shown in the diagram below .

(1)

L1 L2 L3 N PI

(2)

(4)

G L+

Connection for grounded installation

G L+

24 V

(3)

(5)

L+

PS DP/ASi

cntr.

(6)

L+

DP/ASi

link

24 V

L+ G

link

(6)

Figure 4-1 Grounded installation of DP/ASi link

Distributed I/O System DP/ASi Link EWA 4NEB 710 6055-02b

4-5

Page 42

Installing and Wiring the DP/ASi Link

4.2.2 Ungrounded Installation

Definition

Rules

With ungrounded installation of the 24V supply to the DP/ASi link, there is no link between the external power supply (terminal G) and PI, thus resulting in the protective conductor loosing its protective function.

Due to the internal design of the DP/ASi link, the supply voltage is connected capacitively to the protective conductor. This results in high-frequency interference being diverted.

For ungrounded installation you must pay attention to the following points:

 You have to provide a master switch (1) conforming to VDE 0100 for the

DP/ASi link.

 For the connection of the external power supply (24 VDC) to the supply

system, you require a fuse (2).

 For the power supply use a Siemens Series 6EV1 external power supply

(refer to catalog ET 1). If you connect other external power supplies (24 VDC), make sure that

 The 24 VDC supply should be fused separately (5).  With both grounded and ungrounded installation,connect the PI connec-

tion of the DP/ASi link in a low-resistance manner to the protective conductor (6).

On the right side of the DP/ASi link and of the power supply connector there is a screw for connecting the protective conductor.

The protective conductor terminal of the DP/ASi link is connected internally to a pin 9 of the circular connector (refer to T able 4-3).

 Provide isolation monitoring to earth with voltage clamping (7).

Warning

Ungrounded installation may be canceled by grounded machine parts or grounded electrical apparatus.

Example: A grounded sensor or a grounded signal control element connects the PI to the chassis ground potential of the PLC.

4-6

Distributed I/O System DP/ASi Link

EWA 4NEB 710 6055-02b

Page 43

Installing and Wiring the DP/ASi Link

Installation

Ungrounded installation of the DP/ASi link is shown in the diagram below.

(1)

L1 L2 L3 N PI

(2)

(7)

Figure 4-2 Ungrounded installation of DP/ASi link

(3)

G L+

24 V

(5)

L+

L+ G

cntr.

L+

DP/ASi

(6)

link

24 V

L+

DP/ASi

link

(6)

Distributed I/O System DP/ASi Link EWA 4NEB 710 6055-02b

4-7

Page 44

Installing and Wiring the DP/ASi Link

4.2.3 Connecting the DP/ASi Link to ASi and PROFIBUS-DP

Pinout

Connecting the ASi

The location of the three sockets of the DP/ASi link is described in Fig. A-1. You will find the pinout of the DP/ASi link sockets in Table 4-2 and T able 4-3.

Connect the ASi cable with the special terminal. Secure the connector with the union nut.

You obtain the special terminal for the ASi cable by quoting Order Number 6ES7 194-5AA00-0XA0. The assignment of the ASi socket can be seen in T able 4-2.

You can also connect the ASi by using a 2-wire round cable.

Table 4-2 Pin assignment of ASi terminal connection

Pin Assignment View

1 ASi cable )

2 Unused 3 ASi cable * 4 Unused

Brown on Siemens sourced cable

Blue on Siemens sourced cable

View: mating side

Connecting the PROFIBUS-DP

4-8

Connect the PROFIBUS-DP using one of the two 12-pin device connectors with a tee unit to the DP/ASi link. You will find the assignment of the 12-pin connector in T able 4-3.

Distributed I/O System DP/ASi Link

EWA 4NEB 710 6055-02b

Page 45

Installing and Wiring the DP/ASi Link

Device connector assignment

You can connect either the PROFIBUS-DP or the power supply to the device connector. The two 12-pin connectors are interconnected internally. Table 4-3 shows the assignment of the 12-pin device connector.

Table 4-3 Pin assignment of 12-pin device connector

Assign-

ment

Meaning View

1 – Reserved 2 A

Data line P 3 – Reserved 4 B

Data line N 5 – Reserved 6 – Reserved 7 P24V 24 V input voltage 8 M24V 24 V reference poten-

tial

9 PI Protective conductor

10 – Reserved

View: mating side

11 – Reserved

Power supply

Unused device connector

12 – Reserved

Green on Siemens sourced cable

Red on Siemens sourced cable

You connect the power supply to the DP/ASi link using the second device connector. Make sure that the power supply cable is deenergized at the time of connection.

Warning

The DP/ASi link may be destroyed by voltage glitches that may occur while the connector is being slipped on.

The DP/ASi link starts up automatically when the operating voltage is turned on.

If you run the supply voltage over the PROFIBUS-DP and do not loop the PROFIBUS-DP through the DP/ASi link, you must seal the second device connector with the metal cap or, if necessary, screw on the terminating resistor. Only then is IP 66/IP 67 assured.

Distributed I/O System DP/ASi Link EWA 4NEB 710 6055-02b

4-9

Page 46

Installing and Wiring the DP/ASi Link

4.3 Commissioning

In this section

Sequence

Step

1 Install and wire the ASi completely. Connect

the ASi power supply to the ASi cable.

In this section you will learn what you have to take into consideration to commission the DP/ASi link.

You commission the DP/ASi link in several steps.

Action Note

Refer to the instructions for the different ASi slaves and modules concerned to learn how to install them.

The following assignment applies to the Siemens ASi cable:

 ASi cable + = brown  ASi cable – = blue

2 Install the DP/ASi link. Refer to section 4.1 3 Select the station number you are using. You can choose between EEPROM and DIP

switch block (refer to section 4.3.1). EEPROM: refer to section 4.3.3 DIP switch block: refer to section 4.3.2

4 Connect the ASi cable to the DP/ASi link

M12 connector provided for it.

Refer to section 4.2

5 Connect the PROFIBUS-DP with a tee unit

to the DP/ASi link.

6 Connect the 24 V power supply for the DP/

ASi link to the remaining device connector.

7 Turn on the power supply. –

Automatic start-up

4-10

After you have connected the DP/ASi link in the specified order and have turned on the power supply of the DP/ASi link, the DP/ASi link starts up automatically (refer to section 7.1).

Refer to section 4.2

Distributed I/O System DP/ASi Link

EWA 4NEB 710 6055-02b

Page 47

Installing and Wiring the DP/ASi Link

4.3.1 Selecting the Station Number for PROFIBUS-DP

Definition

Selecting station numbers

Range of values

With the station number, you identify every station of the PROFIBUS-DP. The station number represents the name used by the DP master to address individual stations.

With switch 8 of the DIP switch block (refer to Fig. 4-3), you define whether the station number in the EEPROM or the station number on the DIP switch block is valid.

Table 4-4 Station number selection on DIP switch block

Switch 8 Meaning Refer to

OFF Station number on DIP switch block is

Section 4.3.2 valid. The station number in the EEPROM is reset to station number 126

ON Station number in the EEPROM is valid Section 4.3.3

You can set the station number within the range between 0 and 125. Station numbers 126 and 127 are not authorized.

Address 126 is used to identify new DP slaves. Address 127 is reserved for sending messages to a group of stations (multicasting, a sub-form of broadcasting).

Note that you cannot use station numbers 124 and 125 with IM 308-C. IM 308-C does not support diagnostics for these two station numbers.

Modifying station numbers

If you use the station number stored in the EEPROM, you can modify it during operation, as described in section 4.3.3.

You cannot modify the station number set with the DIP switch block during operation. If you alter the station number on the DIP switch block, the new station number is only taken into account after a cold restart.

Distributed I/O System DP/ASi Link EWA 4NEB 710 6055-02b

4-11

Page 48

Installing and Wiring the DP/ASi Link

4.3.2 Setting a Station Number on the DIP Switch Block

Station number

DIP switch block

If you wish to use the station number of the DIP switch block, you must set the configured station number of the DP/ASi link on the DIP switch block before initial startup.

You will find the DIP switch block under the screw-type cover on top of the DP/ASi link (refer to Fig. 4-3). Open the screw-type cover using a suitable coin.

Using switch 8, you set whether the station number in the EEPROM or that on the DIP switch block is used.

With switches 1 through 7, you set the station number.

Example: Switches 1, 5 and 6 at ON

0)24)25

SINEC L2-DP + PS

+1)16) 32 +49

RUN BF

ASi POWER FAIL CONFIG ERROR

AUTOPROG A V CONFIG MODE

1234

DP / ASI LINK

5678

Switch 8

ASi

3–

+ 1

Converting station numbers

Replace cover

124816+

+ ++= ASi-SLAVE FAIL

6ES7 156-0AA01-0XA0

123456

Figure 4-3 Location of DIP switch block

You have to convert the station number into binary. When doing so, bear in mind that switch 1 corresponds to bit 0, switch 2 corresponds to bit 1, etc.

Carefully close the DP/ASi link after setting the station number (torque 100 Ncm).

Caution

If you operate the DP/ASi link without the screw type cover for the DIP switch block, moisture and dirt may penetrate into the DP/ASi link, possibly resulting in destruction of the DP/ASi link.

IP 66/IP 67 degree of protection is not met when the screw-type cover is open.

4-12

Distributed I/O System DP/ASi Link

EWA 4NEB 710 6055-02b

Page 49

4.3.3 Station Number in EEPROM

Installing and Wiring the DP/ASi Link

Default station number

Modifying station numbers

The DP/ASi link is supplied to you with the default station number,126, in the EEPROM. The DIP switch block is set ex works so that the station number in the EEPROM is valid. You have to modify this station number either by using the ET 200 Handheld or by means of the DP master.

If you use the station number set in the EEPROM, you have to modify the default station number, since one DP slave at most may exhibit this number.

You can modify this station number either on your SIMATIC with FB IM308C (FKT = CS) or the ET 200 Handheld. The procedure is described in the Distributed I/O System ET 200 manual. Note that any modification of the address can be saved only if the ASi power supply is turned on.

Note that any modification of the address can be saved only if the ASi power supply is turned on.

Note

If you modify the station number with FB IM308C, you must have configured the new station number and notified it to the IM 308-C via the memory card.

Should you attempt to assign to the DP/ASi link a station number that is unknown to the IM 308-C, an error message is issued in FB IM308C. Assign only defined station numbers.

Deleting station numbers

In special cases you have to set the address of the DP/ASi link to the default address of 126.

Proceed as follows at this stage:

 Set switch 8 to ”Off” and perform a cold start.

Distributed I/O System DP/ASi Link EWA 4NEB 710 6055-02b

4-13

Page 50

Installing and Wiring the DP/ASi Link

Resetting station numbers

In certain cases the station number in the EEPROM of the DP/ASi link has to be reset. Proceed in the following order:

Step

Action

1 Turn off the power supply for the DP/ASi link. 2 Turn switch 8 on the DIP switch block to OFF. 3 Turn on the power supply for the DP/ASi link and then turn it off

after automatic start-up of the DP/ASi link. Start-up is aborted

with an error message. The station number is reset to 126. 4 Turn switch 8 on the DIP switch block to ON. 5 Turn on the power supply for the DP/ASi link. 6 Set the correct station number again with the ET 200 Handheld or

by means of the DP master.

4-14

Distributed I/O System DP/ASi Link

EWA 4NEB 710 6055-02b

Page 51

Installing and Wiring the DP/ASi Link

4.4 Additional Components for PROFIBUS-DP

Introduction

In this section

You require additional components to operate the DP/ASi link on the PROFIBUS-DP. You will learn what components are involved, and their characteristics, in this section.

In Section You Will Find on Page

4.4.1 T Connector (6ES5 762-2CT11) 4-16

4.4.2 Power Supply Connector (6ES5 2CS11) 4-17

4.4.3 Programmer Connector (6ES5 762-2CA12) 4-18

4.4.4 Cables 4-19

4.4.5 Terminating Resistor (6ES5 755-2CA11) 4-21

4.4.6 Adapter Cable (6ES5 755-8CA11) 4-22

4.4.7 Wiring of PROFIBUS-DP 4-23

Distributed I/O System DP/ASi Link EWA 4NEB 710 6055-02b

4-15

Page 52

Installing and Wiring the DP/ASi Link

4.4.1 T Connector (6ES5 762-2CT11)

Usage

Characteristics

Connections

You require a T connector for the following configurations:

 Configuration with power supply connector and T connectors (refer to

section 3.3)

 Configuration with external power supply (refer to section 3.5)

This means that the PROFIBUS-DP can continue to run even when a slave station is uncoupled via a T connector.

The T connector has the following characteristics:

 Degree of protection: IP 66/IP 67 (refer to installation rules, section 4.1)  Can be operated with the following baud rates:

9.6; 19.2; 93.75; 187.5; 500; 1500; 3000; 6000 and 12000 kBd The 3000, 6000 and 12000 kBd baud rates are possible only in the case of

operation with a suitable DP master – for example, the IM 308-C.

A T connector has three bus connections:

 two 12-pin sockets  one 12-pin connector.

The T connector is screwed with the 12-pin connector onto the bus connection of a DP/ASi link. Both bus connections of the DP/ASi link can be used in all cases.

4-16

Figure 4-4 T connector

Distributed I/O System DP/ASi Link

EWA 4NEB 710 6055-02b

Page 53

Installing and Wiring the DP/ASi Link

4.4.2 Power Supply Connector (6ES5 762-2CS11)

Usage

Characteristics

Connections

The power supply connector is used to link the PROFIBUS-DP and the 24 VDC external power supply for the DP/ASi link.

The power supply connector has the following characteristics:

 Degree of protection: IP 66/IP 67 (refer to installation rules, section 4.1)  Can be operated at the following baud rates

9.6; 19.2; 93.75; 187.5; 500; 1500; 3000; 6000 and 12000 kBd The 3000, 6000 and 12000 kBd baud rates are possible only in the case of

operation with a suitable DP master – for example, the IM 308-C.

 Can be loaded with up to 4 A input power. This limits the number of mod-

ules that can be connected (refer to section 3.4)

 Is not a bus station having a station number.  Is secured without opening the cover.

The power supply connector has the following connections:

 Connection for an ”incoming” PROFIBUS-DP (12-pin socket)  Connection for an ”incoming” external power supply

(6-pin connector)

 Connection for an ”outgoing” PROFIBUS-DP with power supply (12-pin

socket)

 Grounding screw for connecting PI

Distributed I/O System DP/ASi Link EWA 4NEB 710 6055-02b

4-17

Page 54

Installing and Wiring the DP/ASi Link

4.4.3 Programmer Connector (6ES5 762-2CA12)

Usage

Characteristics

Connections

A programmer connector is used to connect the programmer within the IP 66/IP 67 environment to the PROFIBUS-DP.

The programmer connector has the following characteristics:

 Degree of protection: IP 66/IP 67 (refer to installation rules, section 4.1)  Can be operated at the following baud rates:

9.6; 19.2; 93.75; 187.5; 500; 1500; 3000; 6000 and 12000 kBd The 3000, 6000 and 12000 kBd baud rates are possible only in the case of

operation with a suitable DP master – for example, the IM 308-C.

 Can be located anywhere on the bus (exception: the programmer connec-

tor must not be located at the extremities of the bus cable, since the terminating resistor must not be inserted).

 Is not a bus station having a station number.  Is secured without opening the cover.

A programmer connector has three bus connections:

 Connection for an ”incoming” PROFIBUS-DP (possibly with power sup-

ply, 12-pin socket).

 Connection for an ”outgoing” PROFIBUS-DP (possibly with power sup-

ply, 12-pin socket).

4-18

 Connection for adapter cable (refer to section 4.4.6) to the programmer

(12-pin socket)

Distributed I/O System DP/ASi Link

EWA 4NEB 710 6055-02b

Page 55

4.4.4 Cables

Installing and Wiring the DP/ASi Link

Types of cables

Designs

The PROFIBUS-DP features different installation options, for which you need the correct cables. There are the following types of cables.

Table 4-5 PROFIBUS-DP cables

No. of

Cores

Usage

2 PROFIBUS-DP field bus, power supply is not incorporated 5  For PROFIBUS-DP field bus and power supply in one

cable

 For power supply feed line to the power supply connector

SIEMENS supplies cables for the PROFIBUS-DP in different designs. All cables are precut with connectors at both ends, at one end or not at all

with a 12-pin connector for connection to the PROFIBUS-DP bus and/or power supply.

You can cut the cables and fit connectors yourself. You will find the necessary information in section 4.4.7.

Note

All precut cables fitted with connectors are designed with a core cross-section of 0.75 mm

for a current loading not exceeding 4 A.

You have to precut the cable for the power supply feed line for a separate power supply and fit the connectors yourself.

Distributed I/O System DP/ASi Link EWA 4NEB 710 6055-02b

4-19

Page 56

Installing and Wiring the DP/ASi Link

Order Numbers

Table 4-6 Order Numbers for cables in standard lengths

(core cross-section 0.75 mm

The following table shows the Order Numbers for the standard lengths:

, maximum current loading 4 A)

Preparation

5-core cable (unprepared) 6ES5 717-11 6ES5 718-11

5-core cable, terminated at one end

(6-pin circular socket)

5-core cable, terminated at both ends

(6-pin circular socket/6-pin circular connector)

5-core cable, terminated at one end

(12-pin circular connector)1

5-core cable, terminated at both ends

(12-pin circular connector)

Length

0.5 m 1 m 2 m 5 m

10 m

Cable (Standard

Sheath)

Cable (Non-welding

Sheath)

6ES5 717-21 6ES5 718-21

6ES5 717-31 6ES5 718-31

6ES5 717-61 6ES5 718-61

6ES5 717-71

° ° °

A B 4 B B 0 B C 0

B F 0

C B 0

6ES5 718-71

° ° °

A B 4 B B 0 B C 0

B F 0

C B 0

Do not use for separate power supply feed line (as bus cable connected ³ bus disturbances are possible).

If you require other lengths, you can order the cables having a Z number. When you order, quote the Order Number and the length you require – for example, 6ES5 717-1AA01-Z 3.50 m.

Table 4-7 Order Numbers for cables having a Z number

(core cross-section 0.75 mm

Preparation

, maximum current loading 4 A)

Cable (Standard

Sheath)

Cable (Non-welding

5-core cable (unprepared) 6ES5 717-1AA01-Z 6ES5 718-1AA01-Z

5-core cable, terminated at one end

6ES5 717-2AA01-Z 6ES5 718-2AA01-Z

(6-pin circular socket)

5-core cable, terminated at both ends

6ES5 717-3AA01-Z 6ES5 718-3AA01-Z

(6-pin circular socket/6-pin circular connector)

5-core cable, terminated at one end

(12-pin circular connector)

5-core cable, terminated at both ends

6ES5 717-6AA01-Z 6ES5 718-6AA01-Z

6ES5 717-7AA01-Z 6ES5 718-7AA01-Z

(12-pin circular connector)

Do not use for separate power supply feed line (as bus cable connected ³ bus disturbances possible).

Sheath)

4-20

Distributed I/O System DP/ASi Link

EWA 4NEB 710 6055-02b

Page 57

Installing and Wiring the DP/ASi Link

4.4.5 Terminating Resistor (6ES5 755-2CA11)

Usage

Characteristics

A bus cable must always be terminated at both ends with a terminating resistor.

Screw the terminating resistor on a 12-pin socket or on the bus connector of the:

 DP/ASi link or  T connector

The terminating resistor has the

 IP 66/IP 67 degree of protection (refer to installation rules, section 4.1)

Figure 4-5 Terminating resistor

Distributed I/O System DP/ASi Link EWA 4NEB 710 6055-02b

4-21

Page 58

Installing and Wiring the DP/ASi Link

4.4.6 Adapter Cable (6ES5 755-8CA11)

Usage

Characteristics

Connections

The adapter cable is required to connect the programmers (with programmer interface module CP 5410-S5 DOS/ST) or the ET 200 Handheld to the PROFIBUS-DP.

The programmer or the ET 200 Handheld are required for

 Setting the station number  T est and commissioning (not ET 200 Handheld)  Diagnostic functions (not ET 200 Handheld)

The adapter cable has the following characteristics:

 Degree of protection: IP 66/IP 67 (refer to installation rules, section 4.1)

only at extremity with IP 66/IP 67 bus connector

 can be operated at the following baud rates

9.6; 19.2; 93.75; 187.5; 500; 1500; 3000; 6000 and 12000 kBd The 3000, 6000 and 12000 kBd baud rates are possible only in the case of

operation with a suitable DP master – for example, the IM 308-C.

The adapter cable has the following connections:

 Bus connector in IP 20 (9-pin connector)  Bus connector in IP 66/IP 67 (12-pin connector)

T o connect the programmer, you also require the programmer connecting cable.

Figure 4-6 Adapter cable

4-22

Distributed I/O System DP/ASi Link

EWA 4NEB 710 6055-02b

Page 59

4.4.7 Wiring of PROFIBUS-DP

Installing and Wiring the DP/ASi Link

Introduction

Circular connectors

Rules: circular connectors

This section describes the points you have to take into account when you wish to prepare the bus cables yourself.

We can provide you with ready cut and terminated cables for the bus connection and the power supply (refer to section 4.4.3).

For the bus connection and connection of the power supply, you require 12-pin circular connectors.

T able 4-8 shows the Order Number for the 12-pin circular connector:

Table 4-8 Order Number for circular connector

Circular Connector Order Number

12-pin connector with pin insert (unprepared)

The following applies to all connections to circular connectors:

6ES5 760-2CB11

 Strip sufficient insulation from the cable so that the screen is firmly en-

closed by the clamping ring in the circular connector.

 Always use the same color of the cores for the same signal; the following

applies to the green/red PROFIBUS cable:

Power supply cable

– always connect terminal A to the green wire – connect terminal B to the red wire

Use only a 3-core cable for the power supply.

Caution

If you use a 5-core cable for the power supply, the PROFIBUS-DP can no longer operate.

Since the two DP connections on the DP/ASi link are connected internally, a 5-core power supply cable represents a prohibited spur line.

Distributed I/O System DP/ASi Link EWA 4NEB 710 6055-02b

4-23

Page 60

Installing and Wiring the DP/ASi Link

4-24

Distributed I/O System DP/ASi Link

EWA 4NEB 710 6055-02b

Page 61

Configuring the DP/ASi Link

Introduction

Method

STEP 7

COM ET 200 Windows

T o operate the DP/ASi link to the PROFIBUS-DP, you must configure and assign parameters to it.

There are two ways in which you can configure a DP/ASi link:

1. You can use the STEP 7 application ( version 2.1 or higher) or COM ET 200 Windows (version 2.0 or higher).

2. You can use any external master that is not covered by COM ET 200 Windows.

The simplest method is to configure the DP/ASi link using STEP 7 (version

2.1 or higher).

With STEP 7 (version 2.1 or higher) the DP/ASi link is easy to configure, as is also the assignment of parameters to it. The approach is described in the Standart STEP 7 Standard Software for S7 and M7 user’s guide. STEP 7 con- tains a detailed online Help for support when you are configuring and assigning parameters.

If you are already familiar with the COM ET 200 Windows package, you will not learn anything new here.

Should you not be certain about how to handle the COM ET 200 Windows package, you will receive instructions on how to integrate a DP/ASi link in the PROFIBUS-DP.

COM ET 200 Windows contains an integrated Help.

External master

Parameterization data

Distributed I/O System DP/ASi Link EWA 4NEB 710 6055-02b

If you wish to operate the DP/ASi link on an external master, section 5.3 is relevant for you.

Of special importance in configuration is the assignment of parameters to ASi slaves. A detailed description of how parameterization data are stored in the parameterization message will be found in appendix C.

The re-assignment of parameters to the DP/ASi link in the S5 (IM308C as the S5 master) is described in detail in the Distributed I/O System ET 200 manual, Order No. 6ES5 998-3ES12.

5-1

Page 62

Configuring the DP/ASi Link

In this chapter

In Section You Will Find on Page

5.1 Configuring - for Example with COM ET 200 Windows (Version 2.0 or Later)

5.2 Example Using COM ET 200 Windows (Version 2.0 or Later)

5.3 Operating the DP/ASi Link with an External Master 5-6

5-3

5-5

5-2

Distributed I/O System DP/ASi Link

EWA 4NEB 710 6055-02b

Page 63

Configuring the DP/ASi Link

5.1 Configuring – for Example with COM ET 200 Windows (Version 2.0 or Later)

Method

Configuring

In the following you will find a description of the method by which you can integrate the DP/ASi link into the PROFIBUS-DP using COM ET 200 Windows (version 2.0 or later). You will find additional information about the different steps in the integrated online Help of COM ET 200 Windows.

1. Open the worksheet with the DP master to which you wish to connect the DP/ASi link.

2. Click in the Slaves window on ASi . As soon as you exit from the Slaves window , the mouse pointer changes its appearance.

3. Click the mouse on the point of the user interface at which you wish to insert the DP/ASi link.

4. Select the slave station number from the list box.

5. Click OK to confirm your selection. You can configure or assign parameters to the DP/ASi link even at this

stage by clicking once on Configure... or Parameterize....

6. T o insert further DP slaves, repeat steps 3 to 5 above.

Once you have inserted the DP/ASi link in the PROFIBUS-DP, you have to configure it. Proceed in the following order:

1. Click on Configure...

2. Select an ASi slave number. Double-click in the I/O field of the slave number to go to a new input window.

3. Select the I/O code of your ASi slave from the list.

4. You can now edit the ID code and the parameter value of the ASi slave you selected, the default values both being 15. If the ID code of your ASi slave is not 15, you have to enter the corresponding value here.

In the case of a DP standard master of limited configuration – for example, S5-95U – step 4 cannot be performed.

5. Set the base address of the SIMATIC address assignment. You have to set the base address separately for inputs and outputs only once for every DP/ASi link.

6. Assign the corresponding address assignment to the ASi slave using

Auto addr. You do not obtain the final address assignment until you have configured all the ASi slaves.

7. For all the other ASi slaves you wish to connect to the DP/ASi link, repeat steps 2 to 6 above with the exception of step 5.

Distributed I/O System DP/ASi Link EWA 4NEB 710 6055-02b

5-3

Page 64

Configuring the DP/ASi Link

Parameterize

Actual configuration

Setpoint configuration

Actual equal to setpoint configuration

Actual less than or equal to setpoint configuration

By choosing Parameterize..., you can influence the start-up characteristics of the DP/ASi link. You can differentiate between ”actual is equal to setpoint configuration” and ”actual is less than or equal to setpoint configuration”.

By actual configuration we mean the actual configuration of the ASi as detected by the DP/ASi link.

By setpoint configuration we mean the configured configuration of the ASi as stored in the DP master.

”Actual is equal to setpoint configuration” means that the DP/ASi link starts up only when the actual configuration is identical with the setpoint configuration. If there is a discrepancy between the actual and setpoint configurations, the DP/ASi link requests a new parameterization message.

”Actual is less than or equal to setpoint configuration” means that the DP/ ASi link compares the actual configuration with the setpoint configuration. If the DP/ASi link establishes a discrepancy, it reacts in two different ways:

 If the DP/ASi link detects unconfigured ASi slaves, it behaves as for ”ac-

tual is equal to setpoint configuration”, that is, the DP/ASi link does not start up.

Hex...

Re-configuring

 If a comparison of the actual and setpoint configurations determines that

configured ASi slaves are missing, the non-existent ASi slaves are reported to have failed in the diagnosis. Data exchange is initiated, however.

If the setpoint and actual configurations are identical, the DP/ASi link starts without issuing an error message. If the actual and setpoint configurations are not identical, a diagnosis is generated (refer to Chapter 8).

By pressing the Hex... button, you can view the parameterization table of the DP/ASi link. The structure of this table is described in Appendix C.

You can later add more ASi slaves to the DP/ASi link or remove them later. T o do this, select the corresponding DP/ASi link from the master system concerned.

5-4

Distributed I/O System DP/ASi Link

EWA 4NEB 710 6055-02b

Page 65

Configuring the DP/ASi Link

5.2 Example Using COM ET 200 Windows (Version 2.0 or Later)

Model structure

Method

You wish to connect an ASi with an ASi slave over the DP/ASi link to the PROFIBUS-DP. The ASi slave has the following assignment:

S one ASi slave with 4 inputs

Assign the ASi slave to the ASi address as shown in T able 5-1. Set the ASi address according to your requirements. The I/O code (refer to

Appendix B) results from the input/output assignment.

Table 5-1 Assigning the slave to the ASi address, an example

ASi Address Input/Output Assignment I/O Code

1 4 inputs 0

Proceed in the following order:

S Integrate the DP/ASi link into the PROFIBUS-DP (refer to section 5.1). S In the window, select Slave parameters

Configure...

S Double-click on the line containing ASi address 1 in the ”I/O Code” field

to open a new input window.

S Select the ASi slave with 4 inputs. Enter I/O code 0 in the field you se-

lected.

Confirming inputs

S Position the mouse pointer in the field for the input address. S With base address, set this address for the address assignment of the

SIMATIC, for example, P54.

S Select Auto addr. Start address P54.0 is assigned to the ASi slave.

Confirm your inputs and write the data to the memory card. Insert the memory card in your DP master. You can now commission the DP/ASi link.

Distributed I/O System DP/ASi Link EWA 4NEB 710 6055-02b

5-5

Page 66

Configuring the DP/ASi Link

5.3 Operating the DP/ASi Link with an External Master

Introduction

If you do not use an application having an easy-to-use user interface for the DP/ASi link – for example, COM ET 200 Windows (version 2.0 or later) or a comparable application, you must pay attention to the following points.

In Section You Will Find on Page

5.3.1 Configuring with Address Space Optimization 5-7

5.3.2 Simple Configuration 5-8

5.3.3 Default Start-Up 5-9

5-6

Distributed I/O System DP/ASi Link

EWA 4NEB 710 6055-02b

Page 67

Configuring the DP/ASi Link

5.3.1 Configuring with Address Space Optimization

Requirement

You can operate the DP/ASi link with any DP master that conforms with the DP standard and supports a parameterization message containing 140 bytes (full assignment of parameters).

Basics

We will confine ourselves here to showing you how to address the DP/ASi link on the PROFIBUS-DP side.

Configuring

Step

Configure the DP/ASi link in the following order:

Action Meaning

1 Define the installation of the ASi. From the installation, you learn the total num-

ber of inputs and outputs that you will assign.

2 Optimize the address assignment of the

input and output data of the DP/ASi link

In this way you make optimum use of the limited address area.

(refer to appendix C.3).

3 Create the parameterization data from the

address assignment received.

4 Create the parameterization message (re-

fer to appendix C.1).

You require the parameterization data of the ASi slaves for the parameterization message.

The DP/ASi link requires the data contained in the parameterization message upon power up.

5 Create the configuration message (refer to

appendix D.2).

Commissioning

You commission the DP/ASi link as described in section 4.3. The DP/ASi link performs as described in chapter 7.

DP standard slave

The DP/ASi link behaves like a DP standard slave.

In the configuration message, define the number of bytes for the input and output data.

Distributed I/O System DP/ASi Link EWA 4NEB 710 6055-02b

5-7

Page 68

Configuring the DP/ASi Link

5.3.2 Simple Configuration

Requirement

The DP/ASi link, version 3 or later, can also be operated on DP standard masters having a reduced message length of 32 bytes (reduced parameter assignment). A DP standard master of this type is the S5-95U with its integrated DP master interface, for example.

Configuring

Step

Configure the DP/ASi link in the following order:

Action Meaning

1 Define the ASi installation. From the installation, you learn the total num-

ber of inputs and outputs that you will assign.

2 Create the parameterization message (re-

fer to appendix C.4).

3 Create the configuration message (refer to

appendix D.3).

Commissioning

You commission the DP/ASi link as described in section 4.3. The DP/ASi

The DP/ASi link requires the data contained in the parameterization message during power up.

In the configuration message, define the number of bytes for the input and output data.

link performs as described in chapter 7.

DP standard slave

The DP/ASi link behaves like a DP standard slave.

5-8

Distributed I/O System DP/ASi Link

EWA 4NEB 710 6055-02b

Page 69

5.3.3 Default Start-Up

Configuring the DP/ASi Link

Introduction

Requirements for DP standard master

Characteristics

You can also configure and assign parameters to the DP/ASi link from the DP standard master by means of a ”default start-up”. In a default start-up, the DP/ASi link operates with preset parameters, which are described in detail on the next few pages. The information is important if you wish to operate the DP/ASi link on the DP standard master of a manufacturer who does not provide an easy-to-use configuring tool.

The DP standard master must be able to process the following messages:

 20-byte configuration messages  7-byte parameterization messages  32-byte diagnostic messages

The following characteristics apply to a default start-up:

 The I/O area assigns 16 input bytes and 16 output bytes.  The location of the ASi slave in the I/O area is uniquely defined by its

address. The distribution of ASi slave inputs and outputs is determined by their I/O codes.

 Upon start-up, the DP/ASi link automatically sends the parameter F

all the ASi slaves connected.

 The ASi slaves present during start-up are detected as the actual configu-

ration and accepted as the setpoint configuration at the same time.

Note

The current ASi configuration is always applied as the setpoint configuration every time the DP/ASi link starts up. This means that ASi slaves which have failed are no longer detected or reported after a re-start.

If you wish to monitor the ASi configuration, you must compare the actual configurations (bytes 16 to 31 of the diagnostic message) in the user program.

Distributed I/O System DP/ASi Link EWA 4NEB 710 6055-02b

5-9

Page 70

Configuring the DP/ASi Link

Input and output area

The table below describes the location of ASi data in the input and output area. A specific address is permanently assigned to every ASi slave:

 even-numbered ASi slaves: bits 4 to 7  odd-numbered ASi slaves: bits 0 to 3

Table 5-2 I/O area assignment

Input and Output

Byte Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0

n Slave 1 n + 1 Slave 2 Slave 3 n + 2 Slave 4 Slave 5 n + 3 Slave 6 Slave 7 n + 4 Slave 8 Slave 9 n + 5 Slave 10 Slave 11 n + 6 Slave 12 Slave 13 n + 7 Slave 14 Slave 15 n + 8 Slave 16 Slave 17 n + 9 Slave 18 Slave 19

n + 10 Slave 20 Slave 21 n + 11 Slave 22 Slave 23 n + 12 Slave 24 Slave 25 n + 13 Slave 26 Slave 27 n + 14 Slave 28 Slave 29 n + 15 Slave 30 Slave 31

Subsequent modification of ASi configuration

5-10

Should you wish to modify the ASi configuration, you must keep to the following procedure:

1. Add or remove ASi slaves.

2. Perform a new default start-up. As soon as the DP/ASi link receives the parameterization message from the

DP master, ASi slaves that are added or removed after this point of time are ignored. ASi slaves that have been removed are reported as having failed in the diagnosis.

Distributed I/O System DP/ASi Link

EWA 4NEB 710 6055-02b

Page 71

Configuring the DP/ASi Link

Parameterization and configuration messages

Following power up, the DP/ASi link determines the configuration of the AS interface and expects a parameterization message and a configuration message from the DP master.

The parameterization message is identical to the first seven bytes of the DP standard part (bytes 0 to 6). You will find a detailed account of the DP standard part in appendix C.1.

The length of the configuration message for default start-up is exactly 20 bytes and is described in appendix D.1.

Distributed I/O System DP/ASi Link EWA 4NEB 710 6055-02b

5-11

Page 72

Configuring the DP/ASi Link

5-12

Distributed I/O System DP/ASi Link

EWA 4NEB 710 6055-02b

Page 73

DP/ASi Link to S7

Introduction

If you operate the DP/ASi link to an S7 (6ES7 156-0AA01-0XA0 or later, version 1), you can re-assign the parameters of the ASi slaves connected to the DP/ASi link during operation. This is done on the S7 by SFCs 59 “RD_REC” and 58 “WR_REC”, which permit data records to be read and written.

 Read data records with SFC 59 ”RD_REC”

– Data record 140: Read lists and flags of ASi slaves – Data record 141: Read parameter echo of ASi slaves – Data record 2: Read response

 Write data records with SFC 58 ”WR_REC”

– Data record 142: Write parameters to ASi slaves – Data record 143: Modify operating address of an ASi slave – Data record 144: Set DP/ASi link to ”Offline” mode

SFC 59 ”RD_REC”

Table 6-1 Parameters for SFC 59 “RD_REC”

You use SFC 59 to read a data record from the DP/ASi link. The parameters are described in the table below:

Parameter Declaration Data Type Memory Area Description

REC INPUT BOOL I, O, M, D, L, Const. REQ = 1: Request to read IOID INPUT BYTE I, O, M, D, L, Const. Area: DP/ASi link is a hybrid module IOID =

B#16#54

LADDR INPUT WORD I, O, M, D, L, Const. Logical address of the DP/ASi link.

Example: Logical address = 336 (decimal), LADDR = W#16#150 (hexadecimal)

RECNUM INPUT BYTE I, O, M, D, L, Const. Data record number

Example: Data record 140, RECNUM = B#16#8C

RET_VAL OUTPUT INT I, O, M, D, L If an error occurs while a function is being pro-

cessed, the return value contains an error code.

Distributed I/O System DP/ASi Link EWA 4NEB 710 6055-02b

6-1

Page 74

DP/ASi Link to S7

Table 6-1 Parameters for SFC 59 “RD_REC”, continued

Parameter DescriptionMemory AreaData TypeDeclaration

BUSY OUTPUT BOOL I, O, M, D, L BUSY = 1: Read operation still being processed

RECORD OUTPUT ANY I, O, M, D, L Destination area for data record read

Example: Data record 140 (22 bytes long) is to be stored in bit memory address area from MB 50 onward, RECORD = P#M50.0 BYTE22

SFC 58 ”WR_REC”

You use the SFC 58 to transfer a data record to the DP/ASi link. The parameters are described in the table below:

Table 6-2 Parameters for SFC 58 “WR_REC”

Parameter Declaration Data Type Memory Area Description

REC INPUT BOOL I, O, M, D, L, Const. REQ = 1: Request to write

IOID INPUT BYTE I, O, M, D, L, Const. Area: The DP/ASi link is a hybrid module

IOID = B#16#54

LADDR INPUT WORD I, O, M, D, L, Const. Logical address of the DP/ASi link.

Example: Logical address = 336 (decimal), LADDR = W#16#150 (hexadecimal)

RECNUM INPUT BYTE I, O, M, D, L, Const. Data record number

Example: Data record 143, RECNUM = B#16#8F

RECORD INPUT ANY I, O, M, D, L Data record

Example: Data record 142 (2 bytes long) is to be read in the bit memory address area from MB 50 onward, RE CORD = P#M50.0 BYTE2

RET_VAL OUTPUT INT I, O, M, D, L If an error occurs while a function is being pro-

cessed, the return value contains an error code.

BUSY OUTPUT BOOL I, O, M, D, L BUSY = 1: Write operation still being pro-

cessed

6.1 Reading Data Records with SFC 59 ”RD_REC”

0 ASi slave not

“1”

ASi link

DP/ASi Link to S7

Data record 140

You use data record 140 to read lists and flags of the ASi slaves. In the case of lists, the ASi slaves present, enabled and configured are displayed. This data record also displays the version and release date of the DP/ASi link.

Table 6-3 Structure of data record 140: Read lists and flags

Description Byte Contents

Read lists

7 6 5 4 3 2 1 0

Bits: “1” ASi slave

present

“0” ASi slave not present

Read flags

Bits:

”

applicable

“

“0” not applicable

Version and release date of DP/ ASi link

ASi slaves presen

ASi slaves enabled

ASi slaves configured

Version

Date

0 1

2 3 4 7 6 5 4 3 2 5 15 14 13 12 11 10 6 23 22 21 20 19 18 7 31 30 29 28 27 26 8 7 6 5 4 3 2

9 15 14 13 12 11 10 10 23 22 21 20 19 18 11 31 30 29 28 27 26

12.0 Config_OK flag

12.1 Null slave present

12.2 Automatic programming enabled

12.3 Automatic programming possible

12.4 Normal mode enabled

12.5 “Offline” mode enabled

12.6 ASi power supply missing 13 5AH=Z (version Z01 dated 12.15.96) 14 30H=0 (version Z01 dated 12.15.96) 15 31H=1 (version Z01 dated 12.15.96) 16 31H=1 (version Z01 dated 12.15.96) 17 35H=5 (version Z01 dated 12.15.96) 18 31H=1 (version Z01 dated 12.15.96) 19 32H=2 (version Z01 dated 12.15.96) 20 39H=9 (version Z01 dated 12.15.96) 21 36H=6 (version Z01 dated 12.15.96)

7 6 5 4 3 2 1 ––– 15 14 13 12 11 10 9 8 23 22 21 20 19 18 17 16 31 30 29 28 27 26 25 24

Bit (corresponds to ASi address)

17 25

–––

1 9

8 16 24

–––

8 16 24

Distributed I/O System DP/ASi Link EWA 4NEB 710 6055-02b

6-3

Page 76

DP/ASi Link to S7

Data record 141

Data record 141 reads outs the parameter echoes of the different ASi slaves. You can evaluate the reactions of the different ASi slaves in a parameter echo following a “WR_REC” write job in the user program. You thus obtain a current image of the state of the ASi slaves. A nibble is assigned to every ASi slave.

Table 6-4 Structure of data record 141: Read parameter echoes of ASi slaves

Byte

0 ––––– Slave 1 1 Slave 2 Slave 3 2 Slave 4 Slave 5 3 Slave 6 Slave 7 4 Slave 8 Slave 9 5 Slave 10 Slave 11 6 Slave 12 Slave 13 7 Slave 14 Slave 15 8 Slave 16 Slave 17

9 Slave 18 Slave 19 10 Slave 20 Slave 21 11 Slave 22 Slave 23 12 Slave 24 Slave 25 13 Slave 26 Slave 27 14 Slave 28 Slave 29 15 Slave 30 Slave 31

Parameter Echoes of ASi Slaves (4 Bits in All Cases)

Bits 4 to 7 Bits 0 to 3

6-4

Distributed I/O System DP/ASi Link

EWA 4NEB 710 6055-02b

Page 77

DP/ASi Link to S7

Data record 2

Data record 2 reads the response of the last “WR_REC” write job. You have to call a “RD_REC” read job by means of data record 2 after every

“WR_REC” write job for the response of the last “WR_REC” write job to be read.

Table 6-5 Structure of data record 2: Read response

Contents

Error codes in data record 2

Byte

0 Data record number of last “WR_REC” job 1 Response of last “WR_REC” job

You can read out in byte 1 of data record 2 any error code that has been issued.

If you read data record 2 without executing a write job beforehand, undefined responses of the error codes may occur.

Table 6-6 Error codes in byte 1 of data record 2

Byte 1

Hex. Dec.

00H000 No error ––– 01H001 ASi slave not enabled ––– 02H002 Source slave not present Input error; enter correct value 03H003 ASi slave with address 0 present ––– 04H004 Destination slave already present ––– 05H005 Source address cannot be deleted ––– 06H006 07H007 08H008 Could not write new parameters Input error; enter correct value 09H009 No meaning ––– 0AH010 No meaning ––– 0BH011 Unknown job number Input error; enter correct value 0CH012 Unknown data record Input error; enter correct value 0DH013 Unknown ASi Manager OP code Input error; enter correct value 0EH014 Message too long or too short Correct number of bytes 0FH015 Automatic programming enabled Repeat job 10H016 Argument too large; source address = destination

12H018 Configuration in DP/ASi Link erroneous Check configuration

Source address could not be programmed with new address

address

017 ASi master is in Offline mode, job is not possible Wait until the DP master is in Operating mode

Meaning Action

–––

Input error; enter correct argument

Distributed I/O System DP/ASi Link EWA 4NEB 710 6055-02b

6-5

Page 78

DP/ASi Link to S7

6.2 Writing Data Records with SFC 58 “WR_REC”

Data record 142

Data record 143

Data record 144

Data record 142 writes parameters to ASi slaves.

Table 6-7 Structure of data record 142: Write parameters to ASi slaves

Byte Contents

0 01 to 1FH: Slave address 1 00 to 0FH: Parameters for the ASi slave

Data record 143 modifies the operating address of an ASi slave

Table 6-8 Structure of data record 143: Modify operating address of ASi slave

Byte Contents

0 00 to 1FH: Source address (old) of the ASi slave 1 00 to 1FH: Destination address (new) of the ASi slave

Data record 144 sets the DP/ASi link to “Offline” mode. In “Of fline” mode, all the ASi slaves are reset and there is no periodic data exchange with the DP/ASi link.

6-6

Table 6-9 Srtructure of data record 144: Set DP/ASi link to “Offline” mode

Byte Contents

“1”: Set “Offline” mode “0”: Reset “Offline” mode

Distributed I/O System DP/ASi Link

EWA 4NEB 710 6055-02b

Page 79

DP/ASi Link to S7

6.3 Example of Re-assigning Parameters to an ASi Slave with S7

Introduction

Below you will find an example program for assigning parameters to the DP/ ASi link using an S7. It shows you how you can read out lists and flags of the ASi slave.

Cyclic program

You use data record 140 to read the lists and flags of the ASi slaves. To do this, call SFC 59 “RD_REC” using data record 140, for example in the cyclic program (OB1):

STL Description CALL “RD_REC” SFC59 ––Read Data Record

REC :=M0.0 IOID :=B#16#54 LADDR :=W#16#0 RECNUM :=B#16#8C RET_VAL :=MW100 BUSY :=M102.0

RECORD :=P#DB59.DBX 0.0 BYTE 22

Call SFC 59 Read data record enabled via M0.0 DP/ASi link is a hybrid module Logical module address Data record No. DR140 Error code while executing SFC59 Read status (1:Read operation still being processed) Destination area of DR140 (in DB59, from byte 0 onward)

Distributed I/O System DP/ASi Link EWA 4NEB 710 6055-02b

6-7

Page 80

DP/ASi Link to S7

Destination area of DR140

Address Name Type Initial Value Comment

0.0 STRUCT +0.0 Vorh_Slaves ARRAY[0..3] Slaves present *1.0 BYTE +4.0 Akt_Slaves ARRAY[0..3] Slaves enabled *1.0 BYTE +8.0 Proj_Slaves ARRAY[0..3] Slaves configured *1.0 BYTE +12.0 Konf_Flag BOOL FALSE Config_OK flag +12.1 Nullslave BOOL FALSE Null slave present +12.2 AutoProg_Frei BOOL FALSE Automatic programming enabled +12.3 AutoProg_Moegl BOOL FALSE Automatic programming possible +12.4 Nrmbetr_akt BOOL FALSE Normal mode enabled +12.5 Offl_akt BOOL FALSE Offline mode enabled +12.6 Spgvers_flt BOOL FALSE ASi power supply missing +13.0 Version_1 BYTE B#16#0 Version_Part 1 +14.0 Version_2 BYTE B#16#0 Version_Part 2 +15.0 Version_3 BYTE B#16#0 Version_Part 3 +16.0 Datum_1 BYTE B#16#0 Date_Part 1 +17.0 Datum_2 BYTE B#16#0 Date_Part 2 +18.0 Datum_3 BYTE B#16#0 Date_Part 3 +19.0 Datum_4 BYTE B#16#0 Date_Part 4 +20.0 Datum_5 BYTE B#16#0 Date_Part 5 +21.0 Datum_6 BYTE B#16#0 Date_Part 6 =22.0 END_STRUCT

The destination area of data record 140 is located in data block DB 59, for example. The following table describes the contents of DB59:

6-8

Distributed I/O System DP/ASi Link

EWA 4NEB 710 6055-02b

Page 81

Operating Modes

Introduction

CONFIG MODE

In this chapter

The DP/ASi link goes through various operating modes during operation, ranging from automatic start-up to normal mode and automatic programming.

We will briefly describe these operating modes for you.

The configuration mode, which is assigned to the CONFIG MODE LED, is provided for extensions of the SIMATIC S7.

In Section You Will Find on Page

7.1 Automatic Start-up of DP/ASi Link 7-2

7.2 Normal Operation 7-4

7.3 Automatic Programming 7-6

Distributed I/O System DP/ASi Link EWA 4NEB 710 6055-02b

7-1

Page 82

YES

Delete internal data

Operating Modes

7.1 Automatic Start-up of DP/ASi Link

Start-up behavior

There are not any switches on the DP/ASi link. The DP/ASi link commences work as soon as it is connected to the power supply.

The following flowchart shows the sequence of automatic startup.

Step Flowchart Meaning

Start

Initialize interface controller

The power supply of the DP/ASi link is turned on.

The two interface controllers for the ASi and the PROFIBUS-DP are initialized. The DP/ ASi link enters a defined basic state.

Switch 8 of DIP switch

block+OFF?

Read out DIP switch block

The DP/ASi link checks for the valid station address.

YES+DIP switch block: proceed to step 4, NO+EEPROM: proceed to step 5.

The DP/ASi link applies the station address set on the DIP switch block.

Proceed to step 6.

Read out EEPROM

The DP/ASi link applies the station address stored in the EEPROM. The EEPROM is checked simultaneously.

Turn on all LEDs

The DP/ASi link turns on all eleven LEDs for test purposes. You can thus detect on site whether a LED has failed.

All internal lists with the ASi slave data are deleted. This means that the DP/ASi link insures that old data are no longer present.

Wait for delay time to elapse

The DP/ASi link waits for a delay time to expire before resuming automatic start-up.

This behavior insures that the DP/ASi link

does not enter an undefined state caused by a short-term voltage drop during start-up.

7-2

Distributed I/O System DP/ASi Link

EWA 4NEB 710 6055-02b

Page 83

Step Flowchart Meaning

The DP/ASi link, as the ASi master, periodically polls the I/O code and the ID code of

all the ASi slaves possible. During the polling cycle, the DP/ASi link

must detect at least one ASi slave.

Poll the data of all ASi slaves

If no ASi slave is present, the DP/ASi link does not resume start-up. The five ASi SLAVE FAIL LEDs flash. This is followed by a return to step 9.

The DP/ASi link waits for the parameteriza-

tion message from the DP master. Once the parameterization message has been

received, the DP/ASi link compares the set-

Was at least one ASi

slave detected?

YES

Read in parameterization message

point and actual configurations. If you selected the ”actual is equal to set-

point configuration”, start-up is resumed

Does the

parameterization mes-

sage correspond to the

configuration?

only if the setpoint and actual configurations are identical. In the event of an error, you return to step 7.

If you selected ”actual is less than or equal

YES

to setpoint configuration”, you return to step 7 only if unconfigured ASi slaves are present.

Read in configuration message

The DP/ASi link waits for the configuration message.

Do the contents

of the configuration mes-

sage correspond to the de-

tected configuration?

Once the configuration message has been received, the DP/ASi link compares the specified structure of the data message with the self-detected structure.

If the DP/ASi detects an error, you return to step 7.

YES

The DP/ASi link resets the LEDs.

Operating Modes

Reset LEDs

Error detection

If an error occurs during start-up, it is detected and evaluated internally. Depending on the error, either the whole start-up process or a part thereof is repeated.

Distributed I/O System DP/ASi Link EWA 4NEB 710 6055-02b

Operation

If no errors have been detected, only the green ”RUN” LED is on.

In the case of ”actual is less than or equal to setpoint configuration” and if there are no configured ASi slaves, the corresponding error LEDs are on. The missing slave having the lowest address is displayed.

7-3

Page 84

Operating Modes

7.2 Normal Operation

Method of operation

Tasks

Monitoring the ASi

Monitoring the PROFIBUS-DP

In normal operation, the DP master exchanges data with the DP/ASi link in exactly the same manner as with any other DP slave.

You do not have take any specific action.

In normal operation, there is a continuous exchange of data with the ASi and the PROFIBUS-DP. The activities of the DP/ASi link can be divided into two tasks:

1. Monitor the ASi

2. Monitor the PROFIBUS-DP

The task of the ASi monitor is to monitor and control communication within the ASi. The input data from the ASi slaves are read and the output data are written to the ASi slaves. The data are stored in the internal work memory.

The DP/ASi link simultaneously senses the actual configuration and compares it with the setpoint configuration. If it is found to be different, a diagnosis is prepared.

If the DP/ASi link is addressed by the DP master, the DP/ASi link transmits the input data to the DP master and receives the output data for the ASi slaves.

Error detection

ASi power failure

7-4

If an error is detected, the DP/ASi link generates a diagnosis, which is fetched by the DP master (refer to Chapter 8).

If the ASi power supply fails during routine operation, the outputs of the ASi slaves are reset. The input data are reset in the DP/ASi link and are not updated until the power is restored.

Note

In the event of an ASi power failure, the data sent to the DP master by the DP/ASi link are no longer valid.

Check, therefore, the data for validity by evaluating the slave diagnosis (byte 12.4) and do not read them into your PLC until you have checked the data.

Distributed I/O System DP/ASi Link

EWA 4NEB 710 6055-02b

Page 85

Operating Modes

ASi slave failure

If the connection to an ASi slave or an ASi slave fails during routine operation, undefined states may occur at the outputs. Behavior depends on the slaves concerned and the causes of failure. The input data are reset in the DP/ASi link.

The input data are not updated until a cause of failure has been remedied.

Note

If an ASi slave fails, the data sent by the DP/ASi link to the DP master are no longer valid for to that ASi slave.

Check, therefore, the validity of the data by evaluating the slave diagnosis (bytes 22 to 25) and do not read the data into your PLC until you have checked the data.

Distributed I/O System DP/ASi Link EWA 4NEB 710 6055-02b

7-5

Page 86

Operating Modes

7.3 Automatic Programming

Definition

Display

Meaning

Constraint

Replacing ASi slaves

”Automatic programming” is an operating mode that occurs only when one ASi slave fails.

The DP/ASi link shows you the ”automatic programming” mode using the ”AUTOPROG AV” LED.

Byte 20.4 is set simultaneously in the diagnostic message.

If ”automatic programming” mode is displayed, then precisely one ASi slave has failed.

Furthermore, there is no ASi slave with ASi address 0 in the ASi. ASi address 0 is the default address for automatic programming.

Automatic programming is not possible if an ASi slave that has been connected to the ASi has not been configured.

The constraint of automatic programming is defined in this manner in the ASi standard.

As long as ”automatic programming” mode is displayed, you can replace the failed ASi slave with a suitable ASi slave having ASi address 0. The DP/ASi link assigns the correct ASi address to the new ASi slave.

7-6

Note

The replacement slave must have the same I/O code and ID code as the ASi slave it replaced.

If this is not the case and if this ASi slave is operated only for a short time on the ASi, automatic programming is no longer authorized, according to the draft ASi Standard.

Automatic programming is not possible again until after power OFF/ON of the DP/ASi link.

Distributed I/O System DP/ASi Link

EWA 4NEB 710 6055-02b

Page 87

Diagnostics and Error Handling

Introduction

Diagnostic options

Online Help

Diagnosing with IM308C

You use the chapter entitled ”Diagnostics and Error Handling” to evaluate the diagnosis of the DP/ASi link and to take the necessary action.

You have two diagnostic options which refer you to the location at which the diagnostic information is stored.

 Diagnosis by means of LEDs gives you the opportunity to evaluate mes-

sages and to remedy any errors which have occurred.

 The diagnostic message gives you the opportunity to react to fail-state

characteristics of the DP/ASi link by means of the user program of the DP master or the higher level PLC.

The COM ET 200 Windows configuration software has an integrated online Help which enables you to activate context-sensitive Help. A description of the error messages is therefore not necessary at this stage.

You can read the DP/ASi link diagnosis into your PLC using the IM308C module with function block IM308C (FB 192, FKT = SD).

You will find an in-depth description of FB IM308C and the diagnostic options in respect of the PROFIBUS-DP in the Distributed I/O System ET 200 manual.

Diagnosing with a S7/M7 DP master

In this chapter

Distributed I/O System DP/ASi Link EWA 4NEB 710 6055-02b

If you wish to operate the DP/ASi link as a DP slave with a SIMATIC S7/M7 DP master, the DP/ASi link behaves like a central S7-300 module.

You read out the diagnosis (data records 0 and 1) using the SFC 13 ”DPNRM_DG”. You will find information on requesting diagnostic data in the STEP 7 Standard and System Functions manual.

In Section You Will Find on Page

8.1 Diagnostics by Means of LEDs of DP/ASi Link 8-2

8.2 Diagnostics by Means of User Program 8-6

8-1

Page 88

Diagnostics and Error Handling

8.1 Diagnostics by Means of LEDs of DP/ASi Link

Diagnostics

For on-site diagnostics, the operating modes of the DP/ASi link are displayed by six LEDs. Five other LEDs indicate the address of the failed ASi slave (refer to Fig. 8-1).

SINEC L2 DP + PS

Figure 8-1 Location of LEDs of DP/ASi link

Display elements

Table 8-1 Meanings of display LEDs

The meanings of the different LEDs is shown in Table 8-1.

DP / ASi LINK

RUN BF

124816+ + + + = ASi SLAVE FAIL

ASi POWER FAIL CONFIG ERROR

AUTOPROG A V CONFIG MODE

6ES7 156-0AA01-0XA0

123456

ASi

+ 1

Name Color State Function

RUN Green On

Off

24 V power supply is in order. 24 V power supply is either not present or below permitted limit

value.

BF Red On

Response monitoring has terminated or parameters have not been as signed yet to DP/ASi link for the PROFIBUS-DP and the DP/ASi link

Off

has not been configured. PROFIBUS-DP is in data cycle.

ASi POWER F AIL

Red On

Off

ASi power supply is either not present or below the permitted limit value.

ASi power supply is in order.

CONFIG ERROR

AUTPROGAVGreen On

CONFIG

Yellow On

Off

No function

Configuration error on ASi Configuration is in order

Automatic programming is possible. Automatic programming is not possible.

MODE ASi SLAVE

FAIL

Red These five LEDs are used to indicate the failed ASi slave with the

lowest ASi address.

8-2

Distributed I/O System DP/ASi Link

EWA 4NEB 710 6055-02b

Page 89

Diagnostics and Error Handling

ASi slave address

Example

Normal operation

Start-up

LED display

So that the DP/ASi link display is not cluttered, failed ASi slaves (ASiSLAVE FAIL) are displayed in binary code by five LEDs.

You have to add the numbers shown on the lit LEDs to determine the address of the failed ASi slave.

If several ASi slaves have failed, the failed ASi slave having the lowest address is indicated. In this case the ”AUTOPROG AV” LED is off.

LEDs showing the numbers ”1”, ”)2” and ”)4” are on. Add up the numbers: 1)2)4+7. The ASi slave with ASi address 7 has failed.

In normal operation, the only LED to be on is the ”RUN” LED, which indicates to you that the DP/ASi link is running properly.

During automatic start-up, all eleven LEDs are turned on briefly. This behavior allows you to check that all LEDs are in order.

The display of the DP/ASi link can be divided into two arrays:

 Operation and PROFIBUS-DP faults  ASi array with indication of failed slaves

Mode display and PROFIBUS-DP

Table 8-2 LED display for modes and bus faults on PROFIBUS-DP

LED Reason Meaning Remedy

RUN LED off

BF LED on

The mode display with the ”RUN” LED is turned on as soon as the power supply is established. If the DP/ASi link detects a fault on the PROFIBUSDP, the ”BF” (Bus Fault) LED goes on.

In Table 8-2 you will find the reaction of the DP/ASi link and troubleshooting information.

24 V power supply This LED goes on as soon as the

24 V power supply is established.

PROFIBUS-DP failed The DP/ASi link is restarting.

Input and output data are set to 0 by the DP/ASi link.

Check the 24 V power supply.

Check the PROFIBUS-DP for interrupt.

Check the DP master for availability.

Distributed I/O System DP/ASi Link EWA 4NEB 710 6055-02b

8-3

Page 90

Diagnostics and Error Handling

ASi diagnostics

T able 8-3 shows the meanings of the LEDs for ASi diagnostics and describes the action required to be taken for troubleshooting.

For ASi diagnostics, the DP/ASi link has four LEDs. In the event of a failure, one or several LEDs are turned on.

Table 8-3 LED display for faults on ASi side

LED on

ASi POWER FAIL The ASi power supply

has failed.

CONFIG ERROR Actual and setpoint con-

figurations are not identifical.

Reason Meaning Remedy

Data exchange between the DP/ ASi link and the ASi slave is no longer possible.

During power up:

 ”Actual is equal to setpoint

configuration”: no data exchange

 ”Actual is less than setpoint

configuration”: data exchange possible (refer to section 5.1)

The data exchange continues in operation.

The fault is caused by:

 one ASi slave has been

added

 one ASi slave has failed  ASi slave 0 has been added

The lowest address of the failed ASi slaves is indicated by five ASi-SLAVE FAIL LEDs.

Check the ASi power supply. Check ASi connections.

Check the ASi slave having the address indicated.

Check whether a slave type different from that specified in the parameterization message (different I/O or ID code) is being used.

AUTOPROG AV Precisely one ASi slave

has failed. The DP/ASi link is in au-

tomatic programming mode.

CONFIG MODE No meaning

8-4

The DP/ASi link enables one ASi slave having ASi address 0 automatically to be allocated the ASi address of the failed ASi slave.

The ASi address of the failed ASi slave is indicated by the five ASi-SLAVE FAIL LEDs.

Replace the failed ASi slave with a new ASi slave having the same I/O code and ID code (refer to section 7.3).

Distributed I/O System DP/ASi Link

EWA 4NEB 710 6055-02b

Page 91

Diagnostics and Error Handling

Combinations

In addition to the different displays described in Table 8-2 and Table 8-3, combinations of several LEDs are also possible. T able 8-4 shows you the meanings of the displays.

Table 8-4 Combination of several LEDs

LEDs

All on DP/ASi link starting up. – All on except ASi

POWER FAIL ASi SLAVE FAIL

flashing BF flashing Station number 126 or 127 is set on the DIP

CONFIG ERROR and all ASi SLAVE FAIL light

A fault has occurred in the PROFIBUS-DP during start-up.

DP/ASi link has not detected an ASi slave. DP/ASi link not starting.

switch block or switch 8 is in OFF position.

Normal mode: ASi slave 31 has failed S7 start-up: data record 128 missing

Meaning Remedy

Check the PROFIBUS-DP, the DP master and the bus connection.

Check the ASi cable and the cable termination.

Set the correct station number on the DIP switch block.

Set switch 8 on the DIP switch block to ON and set a valid station number in the EEPROM.

Check your configuration. Possibly no ASi slaves have been configured.

ASi slave failure

DP/ASi link reaction

Check

If several ASi slaves have failed, the failed ASi slave having the lowest ASi address is indicated with the ”ASi-SLAVE F AIL” LEDs. You recognize the failure of several ASi slaves by the ”AUTOPROG AV” LED not being on.

Check, therefore, the ASi cable for damage in all cases as well.

If the DP/ASi link detects that an ASi slave has failed or that there is no longer a connection to it, it takes the following action:

 The input data to the DP master are reset to 0 for the failed ASi slave.  A diagnostic message is generated (refer to section 8.2)

All data, including the reset data of the failed ASi slave, are still transmitted to the DP master.

If you have remedied the reason for the failure, you can establish immediately whether the DP/ASi link is working properly again. If everything is in order, the DP/ASi link enters normal operation. Only the ”RUN” LED is on.

Distributed I/O System DP/ASi Link EWA 4NEB 710 6055-02b

8-5

Page 92

Diagnostics and Error Handling

8.2 Diagnostics by Means of User Program

In this chapter

In Section You Will Find on Page

8.2.1 Diagnostic Fundamentals in Operations with an IM308C 8-7

8.2.2 Diagnostic Fundamentals in Operations with an S7/M7 DP Master (STEP 7) or with Another PROFIBUS-DP Master

8.2.3 Structure of Diagnosis 8-10

8.2.4 Contents of DP Standard Part 8-12

8.2.5 Module and First Station Diagnoses with the IM308C 8-14

8.2.6 Module and First Station Diagnoses with the S7/M7 DP Master

8.2.7 Second Station Diagnosis with the IM308C 8-18

8.2.8 Second Station Diagnosis with the S7/ M7 DP Master 8-20

8.2.9 Diagnostics for a Default Start-Up with the IM308C (MLFB 6ES7 156 0AA00-8AA0 or Later)

8-9

8-16

8-21

8-6

Distributed I/O System DP/ASi Link

EWA 4NEB 710 6055-02b

Page 93

Diagnostics and Error Handling

8.2.1 Diagnostic Fundamentals in Operations with an IM308C

FB IM308C

Exchanging diagnostic data

Selecting a diagnosis

Master diagnosis

You can read the DP/ASi link diagnosis, as the ”slave diagnosis”, using function block IM308C (FB192) into your PLC – for example, SIMATIC S5 with IM 308 C.

FB IM308C is described in detail in the Distributed I/O System ET 200 manual.

The DP/ASi link informs the DP master, by means of a high-priority transmission of user data, that a diagnosis is available. The DP master then requests the diagnostic message from the DP/ASi link.

You have two options for requesting a diagnosis:

1. Master diagnostics as overview diagnosis and

2. Slave diagnostics as secondary diagnosis.

The master diagnosis includes an overview diagnosis in the first 16 bytes. From the overview diagnosis, you can determine the DP slaves which have reported a diagnosis or which cannot be addressed by that DP master.

The overview diagnosis is recommended especially when you are using several DP slaves. By using the master diagnosis, you do not have to request the slave diagnosis from every DP slave you are using.

Slave diagnosis

The slave diagnosis includes all the diagnostic information of a specific DP slave.

The structure of the slave diagnosis is explained in section 8.2.3.

Method

The method for reading the diagnosis into your PLC is described in detail in the Distributed I/O System ET 200 manual.

Distributed I/O System DP/ASi Link EWA 4NEB 710 6055-02b

8-7

Page 94

Diagnostics and Error Handling

Example

At this point you will find a brief example of how to read the slave diagnosis

into your PLC using FB IM308C. The following assumptions apply to this STEP 5 program:

 The IM 308-C is assigned, as a PROFIBUS-DP master, pages 0 to 15

(number 0 of IM 308-C).

 The station number of the DP/ASi link is 3.  The slave diagnosis is to be stored in DB 30. You may also use any other

data block to store it in.

 The slave diagnosis consists of 26 bytes.

AWL Explanation

:A DB 30

Name :IM308C DPAD : KH F800 IMST : KY 0, 3 FCT : KC SD GCGR : KM 0 TYP : KY 0, 20 STAD : KF +1 LENG : KF 26 ERR : DW 0

:SPA FB 192

Default address area of the IM 308-C IM No. = 0, DP/ASi link No. = 3 Function: Read slave diagnosis Not evaluated S5 data area: DB 20 Diagnostic data, from data word 1 onward Length of diagnosis = 26 bytes Error code stored in DW 0 of DB 30

Diagnostic status

Fault remedied

The DP/ASi link can send two different diagnostic messages:

 Dynamic diagnostics

If a new fault occurs on the DP/ASi link, the diagnosis is fetched automatically by the DP master.

This procedure is repeated every time the diagnosis is modified.

 Static diagnostics

The DP/ASi link uses static diagnostics when the ASi power fails. While static diagnosis is enabled, the DP master requests diagnostic messages from the DP/ASi link.

Neither input nor output data are exchanged between the DP master and the DP/ASi link during this period.

Static diagnostics is retained until you have remedied the reason for the failure for the diagnostic message.

If there is no longer a reason for a diagnosis, the DP/ASi link sends a final diagnostic message without any further error messages.

8-8

Distributed I/O System DP/ASi Link

EWA 4NEB 710 6055-02b

Page 95

Diagnostics and Error Handling

8.2.2 Diagnostic Fundamentals in Operations with an S7/M7 DP Master (STEP 7) or with Another PROFIBUS-DP Master

Diagnosis with S7/M7 DP Master

SFC 13 “DPNRM_DG”

Table 8-5 Parameters for SFC 13 “DPNRM_DG”

Parameter Declaration Data Type Memory Area Description

REC INPUT BOOL I, O, M, D, L, Const. REQ = 1: Read request

LADDR INPUT WORD I, O, M, D, L, Const. Configured diagnostic address from I area of

RET_VAL OUTPUT INT I, O, M, D, L If an error occurs while the function is being

RECORD OUTPUT ANY I, O, M, D, L Destination area for diagnostic data after being

BUSY OUTPUT BOOL I, O, M, D, L BUSY = 1: Read process continuing.

If you are operating the DP/ASi link as a DP slave with a SIMATIC S7/M7 DP master, the DP/ASi link behaves like a central S7-300 I/O module.

You read out the diagnosis (data records 0 and 1) using SFC 13 ”DPNRM_DG”. You will find information on requesting diagnostic data in the STEP

7 Standard and System Functions manual.

DP/ASi link.

processed, the return value contains an error code. If an error does not occur, the length of the data actually transferred is located in RET_VAL.

read. Only data type BYTE is allowed.

Diagnosing with other PROFIBUSDP masters

If you operate the DP/ASi link as a DP slave with a DP master from Siemens that is not part of the SIMATIC S5/S7/M7 PLCs or with a DP master from another manufacturer, please refer to the documentation for the DP master concerned for the way in which the slave diagnosis is requested.

Diagnostic interrupts

The DP/ASi link supports diagnostic interrupts. You can evaluate these interrupts using an S7/M7 DP master. Should an inter-

rupt occur, interrupt OBs are processed automatically by the CPU (refer to the System Software for S7-300 and S7-400, Program Design programming manual).

Distributed I/O System DP/ASi Link EWA 4NEB 710 6055-02b

8-9

Page 96

Diagnostics and Error Handling

8.2.3 Structure of Diagnosis

Introduction

Structure for IM 308C

The structure of the diagnostic message conforms with the PROFIBUS-DP standard.

Note

The structure of the diagnostic message described below does not apply to a default start-up (refer to section 8.2.9).

The diagnostic message for the IM308C contains 26 bytes of data. The structure of the complete diagnosis is shown in T able 8-6.

Table 8-6 Structure of diagnostic message

Byte(s) Contents

0 Station status 1 1 Station status 2 2 Station status 3 3 Station number, DP master 4 5 6 Header and length of module diagnosis 7 Module diagnosis 8 Header and length of first station diagnosis 9 Length of S7 area 10 Reserved 11 Reserved 12 – 15 Part 1 of diagnostic data 16 Length of second station diagnosis (ASi-specific part) 17 Length of S7 area 18 Reserved 19 Reserved 20 – 25 Part 2 of diagnostic data.

Manufacturer ID (801BH)

8-10

Distributed I/O System DP/ASi Link

EWA 4NEB 710 6055-02b

Page 97

Diagnostics and Error Handling

Structure for S7/M7 DP master

The diagnostic message for the S7/M7 DP master contains 24 bytes of data. The structure of the entire diagnosis is shown in T able 8-7.

Table 8-7 Diagnostic message structure for the S7/M7 DP master

Byte(s) S7/M7 DP Master

0 Stations status 1 1 Stations status 2 2 Stations status 3 3 Station number, DP Master 4 5 6 Header and length of module diagnosis 7 Module diagnosis 8 Module diagnosis 9 Header and length of station diagnosis 10 S7 diagnostic interrupt ID 11 S7 slot 12 Reserved 13 – 16 Part 1 of station diagnostic data (DS 0) 17 – 23 Part 2 of station diagnostic data (DS 1)

Manufacturer ID (801BH)

Distributed I/O System DP/ASi Link EWA 4NEB 710 6055-02b

8-11

Page 98

Diagnostics and Error Handling

8.2.4 Contents of DP Standard Part

DP standard part

Station status 1

The first six bytes of the diagnostic message (byte 0 to byte 5) are termed the DP standard part. They are independent of the DP slave used.

You will find a description of the structure of station status 1 in Table 8-8. The default setting is 02

Table 8-8 Structure of station status 1

Bit Value Contents

0 1 DP/ASi link cannot be addressed. 1 1 DP/ASi link not yet ready for data exchange. 2 1 The configuration data sent by the DP master do not correspond to

the configuration of the ASi. 3 1 Slave diagnosis available. 4 1 Requested function not supported by DP/ASi link. 5 1 Implausible response received from DP/ASi link. 6 1 Erroneous parameterization message present. 7 1 DP/ASi link assigned parameters by a DP master other than the DP

master that is just attempting to access the DP/ASi link.

Station status 2

You will find a description of the structure of station status 2 in Table 8-9. The default setting is 05

Table 8-9 Structure of station status 2

Bit Value Contents

0 1 New parameters have to be assigned to DP/ASi link. 1 1 Static diagnostics available. 2 1 Reserved 3 1 Response monitoring activated. 4 1 FREEZE mode enabled. 5 1 SYNC mode enabled. 6 0 Reserved 7 0 DP/ASi link de-activated.

8-12

Distributed I/O System DP/ASi Link

EWA 4NEB 710 6055-02b

Page 99

Diagnostics and Error Handling

Station status 3

Station number of DP master

Manufacturer ID

Station status 3 is reserved for later applications. Its value is always 00H.

This byte contains the station number of the DP master which assigned parameters to the DP slave. Only this DP master has read and write access to this DP slave.

The default value of the station number during startup is FF

. This means

that the DP/ASi link has so far not been assigned parameters by any DP master.

The manufacturer ID enables you to precisely identify the DP slave. The manufacturer ID is specific to a product.

The manufacturer ID for the DP/ASi link has a value of 32795 (801B

Distributed I/O System DP/ASi Link EWA 4NEB 710 6055-02b

8-13

Page 100

Diagnostics and Error Handling

8.2.5 Module and First Station Diagnoses with the IM308C

Area

Contents

Module and first station diagnoses are contained in bytes 6 to 15.

The contents of bytes 6 to 11 are shown in Table 8-10.

Table 8-10 Structure of bytes 6 to 11 of diagnostic message

Byte Contents Contents

6 42

7 00

8 08

9 XX 10 04 11 00

Header of module diagnosis including length specification in

accordance with DP standard. This diagnosis is not used by the DP/ASi link.

Module diagnosis

This diagnosis is not used by the DP/ASi link. First station diagnosis with 8 bytes including header

The first station diagnosis comprises bytes 8 to 15. This area is prepared for an extended diagnosis by your S7.

Reserved

8-14

Distributed I/O System DP/ASi Link

EWA 4NEB 710 6055-02b

Siemens DP-ASi User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

Preface

Contents

Figures

T ables

Overview

1.1 Using the DP/ASi Link

1.2 What is the DP/ASi Link?

1.3 View of the DP/ASi Link

ASi Basics

2.1 Structure of ASi

2.2 Elements of ASi

2.3 Example Configuration of a Module

2.4 Connecting Elements

2.5 Interruption or Short-Circuit of the ASi cable

Configuration Options

3.1 Summary of Configuration Options

3.3 Configuration with T Connector and with Power Supply Connector

3.4 Configuration with Several Power Supply Connectors

3.5 Configuration without Power Supply Connector

3.6 Configuration with Programmer Connector

Installing and Wiring the DP/ASi Link

4.1 Installation

4.2 Electrical Wiring of DP/ASi Link

4.2.1 Grounded Installation

4.2.2 Ungrounded Installation

4.2.3 Connecting the DP/ASi Link to ASi and PROFIBUS-DP

4.3 Commissioning

4.3.1 Selecting the Station Number for PROFIBUS-DP

4.3.2 Setting a Station Number on the DIP Switch Block

4.3.3 Station Number in EEPROM

4.4 Additional Components for PROFIBUS-DP

4.4.1 T Connector (6ES5 762-2CT11)

4.4.2 Power Supply Connector (6ES5 762-2CS11)

4.4.3 Programmer Connector (6ES5 762-2CA12)

4.4.4 Cables

4.4.5 Terminating Resistor (6ES5 755-2CA11)

4.4.6 Adapter Cable (6ES5 755-8CA11)

4.4.7 Wiring of PROFIBUS-DP

Configuring the DP/ASi Link

5.1 Configuring – for Example with COM ET 200 Windows (Version 2.0 or Later)

5.2 Example Using COM ET 200 Windows (Version 2.0 or Later)

5.3 Operating the DP/ASi Link with an External Master

5.3.1 Configuring with Address Space Optimization

5.3.2 Simple Configuration

5.3.3 Default Start-Up

DP/ASi Link to S7

6.1 Reading Data Records with SFC 59 ”RD_REC”

6.2 Writing Data Records with SFC 58 “WR_REC”

6.3 Example of Re-assigning Parameters to an ASi Slave with S7

Operating Modes

7.1 Automatic Start-up of DP/ASi Link

7.2 Normal Operation

7.3 Automatic Programming

Diagnostics and Error Handling

8.1 Diagnostics by Means of LEDs of DP/ASi Link

8.2 Diagnostics by Means of User Program

8.2.1 Diagnostic Fundamentals in Operations with an IM308C

8.2.2 Diagnostic Fundamentals in Operations with an S7/M7 DP Master (STEP 7) or with Another PROFIBUS-DP Master

8.2.3 Structure of Diagnosis

8.2.4 Contents of DP Standard Part

8.2.5 Module and First Station Diagnoses with the IM308C