Siemens SIMATIC Distributed I/O System DP/ASi Link Technical data

Preface, Contents
Overview
1
ASi Basics
2
Configuration Options
3
Installing and Wiring DP/ASi Link
4
Configuring the DP/ASi Link
5
DP/ASi Link to S7
6
Operating Modes
7
Diagnostics and Error Handling
8
SIMATIC
Distributed I/O System
DP/ASi Link
Manual
Appendices
Technical Data
A
I/O Code
B
Parameterization Message
C
Configuration Message
D
Glossary, Index
EWA 4NEB 710 6055-02b
Edition 3
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
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.
Correct Usage
!
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.
Trademarks
SIMATIC and SIMATIC NET are registered trademarks of SIEMENS AG.
Some of the other designations used in these documents are also registered trademarks; the owner’s rights may be violated if they are used be third parties for their own purposes.
Copyright Siemens AG 1995 All rights reserved
Disclaimer of Liability
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.
We have checked the contents of this manual for agreement with the
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.
Siemens AG
Automation Group
Industrial Automation Systems
P.O. Box 4848, D-90327 Nuremberg
Siemens Aktiengesellschaft
ii
Technical data subject to change.
Siemens AG 1995
Order No. 6ES7 156-0AA00-8BA0
Distributed I/O System DP/ASi Link
EWA 4NEB 710 6055 02b
Preface
Purpose of manual
The information contained in this manual will enable you to:
install an Actuator Sensor Interface (ASi)
commission the DP/ASi link
Manual contents
The scope of delivery of MLFB 6ES7 156-0AA00-8AA0 consists of the
manual:
Distributed I/O System
DP/ASi Link, Edition 3
Applicability
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:
Order No.
DP/ASi Link
Release (or Later)
DP/ASi Link
6ES7 156-0AA00-0XA0
03
6ES7 156-0AA01-0XA0
01
Manual
Edition
03
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
iii
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 following changes have been incorporated:
DP/ASi link to S7
diagnostics during operation with an S7/M7 DP master
Standards and
approvals
The DP/ASi link meets the requirements and criteria of the following standards 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
The Distributed I/O System DP/ASi Link can be acquired on a CD-ROM as
an electronic manual.
Aids to accessing
the 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.
iv
Distributed I/O System DP/ASi Link
EWA 4NEB 710 6055-02b
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 complete 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.
To 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
v
Preface
vi
Distributed I/O System DP/ASi Link
EWA 4NEB 710 6055-02b
Contents
Preface
1
2
3
4
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
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
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
Installing and Wiring the DP/ASi Link
4.1
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4-2
4.2
4.2.1
4.2.2
4.2.3
Electrical Wiring of DP/ASi Link . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Grounded Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Ungrounded Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Connecting the DP/ASi Link to ASi and PROFIBUS-DP . . . . . . . . . . . . . . .
4-3
4-4
4-6
4-8
4.3
4.3.1
4.3.2
4.3.3
Commissioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Selecting the Station Number for PROFIBUS-DP . . . . . . . . . . . . . . . . . . . . .
Setting a Station Number on the DIP Switch Block . . . . . . . . . . . . . . . . . . . .
Station Number in EEPROM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4-10
4-11
4-12
4-13
Distributed I/O System DP/ASi Link
EWA 4NEB 710 6055-02b
vii
Contents
4.4
4.4.1
4.4.2
4.4.3
4.4.4
4.4.5
4.4.6
4.4.7
5
7
8
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
5.3.1
5.3.2
5.3.3
Operating the DP/ASi Link with an External Master . . . . . . . . . . . . . . . . . . .
Configuring with Address Space Optimization . . . . . . . . . . . . . . . . . . . . . . . .
Simple Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Default Start–Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5-6
5-7
5-8
5-9
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
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
Diagnostics and Error handling
8.1
Diagnostics by Means of LEDs of DP/ASi Link . . . . . . . . . . . . . . . . . . . . . . .
8-2
8.2
8.2.1
8.2.2
Diagnostics by Means of User Program . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Diagnostic Fundamentals in Operations with an IM308C . . . . . . . . . . . . . .
Diagnostic Fundamentals in Operations with an S7/M7 DP Master
(STEP 7) or with Another PROFIBUS-DP Master . . . . . . . . . . . . . . . . . . . . .
Structure of Diagnosis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Contents of DP Standard Part . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Module and First Station Diagnoses for the IM308C . . . . . . . . . . . . . . . . . .
Module and First Station Diagnoses for the S7/M7 DP Master . . . . . . . . .
Second Station Diagnosis for the IM308C . . . . . . . . . . . . . . . . . . . . . . . . . . .
Second Station Diagnosis for the S7/ M7 DP Master . . . . . . . . . . . . . . . . . .
Diagnostics for a Default Start-Up with the IM308C
(6ES7 156 0AA00-0XA0 or higher, Issue 3) . . . . . . . . . . . . . . . . . . . . . . . . . .
8-6
8-7
8.2.3
8.2.4
8.2.5
8.2.6
8.2.7
8.2.8
8.2.9
viii
4-15
4-16
4-17
4-18
4-19
4-21
4-22
4-23
Configuring the DP/ASi Link
5.1
6
Additional Components for PROFIBUS-DP . . . . . . . . . . . . . . . . . . . . . . . . . .
T Connector (6ES5 762-2CT11) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power Supply Connector (6ES5 762-2CS11) . . . . . . . . . . . . . . . . . . . . . . . .
Programmer Connector (6ES5 762-2CA12) . . . . . . . . . . . . . . . . . . . . . . . . .
Cables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Terminating Resistor (6ES5 755-2CA11) . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Adapter Cable (6ES5 755-8CA11) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Wiring of PROFIBUS-DP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8-9
8-10
8-12
8-14
8-16
8-18
8-20
8-21
Distributed I/O System DP/ASi Link
EWA 4NEB 710 6055-02b
Contents
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
D
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
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
Glossary
Index
Distributed I/O System DP/ASi Link
EWA 4NEB 710 6055-02b
ix
Contents
Figures
1-1
1-2
1-3
2-1
2-2
3-1
3-2
3-3
3-4
3-5
3-6
3-7
3-8
4-1
4-2
4-3
4-4
4-5
4-6
8-1
A-1
C-1
x
Integrating the DP/ASi link . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
View of DP/ASi link . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Example installation of an ASi . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
View of module, example of an upper part and a lower part . . . . . . . . . . . .
Legend . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
PROFIBUS-DP and power supply looped through on DP/ASi link . . . . . . .
PROFIBUS-DP and power supply looped through by means of T
connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Rule for installation with a T connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Configuration with several power supply connectors . . . . . . . . . . . . . . . . . .
PROFIBUS-DP looped through T connectors –
external power supply fed separately to every slave station . . . . . . . . . . . .
Rule for installation with a T connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Configuration with programmer connector . . . . . . . . . . . . . . . . . . . . . . . . . . .
Grounded installation of DP/ASi link . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Ungrounded installation of DP/ASi link . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Location of DIP switch block . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
T connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Terminating resistor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Adapter cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Location of LEDs of DP/ASi link . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
DP/ASi link; dimension drawing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Sorting ASi slaves into address space template . . . . . . . . . . . . . . . . . . . . . .
1-2
1-3
1-5
2-2
2-5
3-2
3-3
3-4
3-5
3-6
3-7
3-8
3-9
4-5
4-7
4-12
4-16
4-21
4-22
8-2
A-6
C-9
Distributed I/O System DP/ASi Link
EWA 4NEB 710 6055-02b
Contents
Tables
1-1
3-1
3-2
3-3
4-1
4-2
4-3
4-4
4-5
4-6
4-7
4-8
5-1
5-2
6-1
6-2
6-3
6-4
6-5
6-6
6-7
6-8
6-9
8-1
8-2
8-3
8-4
8-5
8-6
8-7
8-8
8-9
8-10
8-11
8-12
8-13
8-14
8-15
8-16
Length of the PROFIBUS bus cable as a function of the baud rate on the
PROFIBUS DP bus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Configuration options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Length of bus cable when PROFIBUS-DP and power supply
are fed on the same bus cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Length of the spur line of the programmer connection as a function of the
baud rate on the PROFIBUS-DP bus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Spacing between DP/ASi link and cable duct . . . . . . . . . . . . . . . . . . . . . . . .
Pin assignment of ASi terminal connection . . . . . . . . . . . . . . . . . . . . . . . . . .
Pin assignment of 12-pin device connector . . . . . . . . . . . . . . . . . . . . . . . . .
Station number selection on DIP switch block . . . . . . . . . . . . . . . . . . . . . . .
PROFIBUS-DP cables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Order Numbers for cables in standard lengths
(core cross-section 0.75 mm2, maximum current loading 4 A) . . . . . . . . . .
Order Numbers for cables having a Z number
(core cross-section 0.75 mm2, maximum current loading 4 A) . . . . . . . . . .
Order Number for circular connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Assigning the slave to the ASi address, an example . . . . . . . . . . . . . . . . . .
I/O Area Assignment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Parameters for SFC 59 “RD_REC” . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Parameters for SFC 58 “WR_REC” . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Structure of data record 140: Read lists and flags . . . . . . . . . . . . . . . . . . . .
Structure of data record 141: Read parameter echoes of ASi slaves . . . .
Structure of data record 2: Read response . . . . . . . . . . . . . . . . . . . . . . . . . .
Error codes in byte 1 of data record 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Structure of data record 142: Write parameters to ASi slaves . . . . . . . . . .
Structure of data record 143: Modify operating address of ASi slave . . . .
Srtructure of data record 144: Set DP/ASi link to “Offline” mode . . . . . . . .
Meanings of display LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
LED display for modes and bus faults on PROFIBUS-DP . . . . . . . . . . . . .
LED display for faults on ASi side . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Combination of several LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Parameters for SFC 13 “DPNRM_DG” . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Structure of diagnostic message . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Diagnostic message structure for the S7/M7 DP master . . . . . . . . . . . . . .
Structure of station status 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Structure of station status 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Structure of bytes 6 to 11 of diagnostic message . . . . . . . . . . . . . . . . . . . . .
Structure of diagnosis, bytes 12 to 15 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Structure of bytes 6 to 12 of diagnostic message for operations with
IM308C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Structure of diagnosis, bytes 13 to 16 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Structure of bytes 16 to 19 in diagnostic message . . . . . . . . . . . . . . . . . . .
Structure of diagnostic data, bytes 20 and 21 . . . . . . . . . . . . . . . . . . . . . . .
Assignment of ASi address to bit positions, bytes 22 to 25 . . . . . . . . . . . . .
Distributed I/O System DP/ASi Link
EWA 4NEB 710 6055-02b
1-4
3-2
3-6
3-10
4-2
4-8
4-9
4-11
4-19
4-20
4-20
4-23
5-5
5-10
6-1
6-2
6-3
6-4
6-5
6-5
6-6
6-6
6-6
8-2
8-3
8-4
8-5
8-9
8-10
8-11
8-12
8-12
8-14
8-15
8-16
8-17
8-18
8-18
8-19
xi
Contents
8-17
8-18
8-19
8-20
8-21
B-1
C-1
C-2
C-3
C-4
C-5
C-6
C-7
C-8
C-9
C-10
C-11
D-1
D-2
D-3
D-4
D-5
D-6
xii
Structure of bytes 17 to 19 in diagnostic message . . . . . . . . . . . . . . . . . . .
Assignment of the ASi address to bit positions, bytes 20 to 23 . . . . . . . . .
Basic structure of diagnostic message . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Indication of failed ASi slaves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Actual ASi configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
I/O code of ASi slaves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Structure of the DP standard part in parameterization message . . . . . . . .
Structure of station status in parameterization message . . . . . . . . . . . . . .
Structure of byte 7 for initialization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Default values of bytes 8 to 14 for initialization . . . . . . . . . . . . . . . . . . . . . .
Value of control byte (byte 15) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Parameterization data for an ASi slave . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Assignment of parameterization data of ASi slaves to byte numbers of
parameterization message . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Assigning the DP standard part . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Default values of bytes 8 to 14 for initialization . . . . . . . . . . . . . . . . . . . . . . .
Definition of response when setpoint and actual configurations differ . . . .
I/O code of configured ASi slaves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Configuration message structure for a default start-up . . . . . . . . . . . . . . . .
Default assignment of bytes 0 to 14 of the configuration message,
shown in hexadecimal numbers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Value of identification byte in configuration message . . . . . . . . . . . . . . . . .
Value of the I/O length byte in configuration message . . . . . . . . . . . . . . . .
Configuration message for masters with reduced parameter assignment
IDs for the variable part of the configuration message . . . . . . . . . . . . . . . . .
8-20
8-20
8-21
8-21
8-22
B-1
C-2
C-3
C-4
C-4
C-4
C-6
C-7
C-10
C-10
C-10
C-11
D-2
D-3
D-4
D-4
D-7
D-7
Distributed I/O System DP/ASi Link
EWA 4NEB 710 6055-02b
1
Overview
Introduction
You use the DP/ASi link to interface the Actuator Sensor Interface to the
PROFIBUS-DP.
Devices and modules
The DP/ASi link operates as a DP slave and requires a DP master – for example, an IM 308-C.
In this chapter
In Section
Distributed I/O System DP/ASi Link
EWA 4NEB 710 6055-02b
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
1-1
Overview
1.1
Using the DP/ASi Link
Definition
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.
ASi and PROFIBUS-DP
Higher level
DP master
PROFIBUS-DP
DP
slave
DP/ASi
link
ASi
Lowest level
Figure 1-1
Actuator
Actuator
Sensor
Sensor
Integrating the DP/ASi link
Explanation
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 master
ASi allows one ASi master. The DP/ASi link is the ASi master.
IP 66/67
The DP/ASi link meets the IP 66/IP 67 degree of protection.
Installation
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.
1-2
Distributed I/O System DP/ASi Link
EWA 4NEB 710 6055-02b
Overview
1.2
What is the DP/ASi Link?
Definition
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.
Overview
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:
Components
T connector
Power supply connector
PS
SV
cntr
Programmer connector
PG
Bus cable
2-core
Power supply cable
3-core
Bus cable incl. power supply cable
5-core
Terminating resistor
Adapter cable
Figure 1-2
Master interface
Components
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
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.
Compact design
The DP/ASi link is suitable for applications requiring little space. Its dimensions are 2058057 mm plus the T connector.
Distributed I/O System DP/ASi Link
EWA 4NEB 710 6055-02b
1-3
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 number (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 12 000 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
1-4
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
Distributed I/O System DP/ASi Link
EWA 4NEB 710 6055-02b
Overview
1.3
View of the DP/ASi Link
View
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
ASi POWER FAIL
BF
SINEC
L2-DP
+ PS
ASi
3
CONFIG ERROR
1
AUTOPROG AV
+
CONFIG MODE
1
+
2
+
4
+
8
+
16 = ASi SLAVE FAIL
6ES7 156-0AA01-0XA0
2 connections for
PROFIBUS-DP
Figure 1-3
LEDs
12 345 6
Screw-type cover
for DIP switch
block
Connection
for ASi cable
View of DP/ASi link
Distributed I/O System DP/ASi Link
EWA 4NEB 710 6055-02b
1-5
Overview
1-6
Distributed I/O System DP/ASi Link
EWA 4NEB 710 6055-02b
2
ASi Basics
Introduction
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.
Definition
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.
Overview
In this chapter
After you have studied this chapter, you will know how the ASi is structured
and how it operates.
In Section
Distributed I/O System DP/ASi Link
EWA 4NEB 710 6055-02b
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
2-1
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 installation
Fig. 2-1 shows an example installation of an ASi.
a
b
c
d
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 power
supply unit
a
d
ASi slave
ASi distribution unit
ASi slave
ASi distribution unit
ASi slave
ASi slave
ASi slave
ASi slave
b
ASi slave
ASi slave
c
ASi slave
Ext. power
supply unit
Figure 2-1
2-2
Example installation of an ASi
Distributed I/O System DP/ASi Link
EWA 4NEB 710 6055-02b
ASi Basics
2.2
Elements of ASi
DP/ASi link
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 slave
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, depending 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.
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.
I/O code
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.
ID code
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
ASi Basics
ASi distribution
unit
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.
ASi cable
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
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.
External power
supply
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.
You connect an external power supply unit directly to the module concerned.
2-4
Distributed I/O System DP/ASi Link
EWA 4NEB 710 6055-02b
ASi Basics
2.3
Example Configuration of a Module
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
I1 e
c
d
I2
b
a
O3
O4
f
g
a
b
c
d
e
f
g
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
Distributed I/O System DP/ASi Link
EWA 4NEB 710 6055-02b
View of module, example of an upper part and a lower part
2-5
ASi Basics
2.4
Connecting Elements
Connecting
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.
Penetration technique
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.
Contacts for 2-wire
cable
2-6
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.
Distributed I/O System DP/ASi Link
EWA 4NEB 710 6055-02b
ASi Basics
2.5
Interruption or Short-Circuit of the ASi cable
ASi short-circuit
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.
ASi interruption
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.
ASi slave reaction
!
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
ASi Basics
2-8
Distributed I/O System DP/ASi Link
EWA 4NEB 710 6055-02b
3
Configuration Options
Introduction
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.
Tip
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 this chapter
In Section
Distributed I/O System DP/ASi Link
EWA 4NEB 710 6055-02b
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
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
3-1
Configuration Options
3.1
Summary of Configuration Options
Configuration
options
Table 3-1
PROFIBUS-DP presents you with different configuration options for combining the PROFIBUS-DP and the 24 V power supply of the devices. The following Table 3-1 shows the different options.
Configuration options
Power Supply Connector for Device’s
Internal Power Consumption
Configuration
Refer to
Configuration without T connector
Configuration with T connector
Configuration with programmer
connector
Configuration with several power supply connectors (the degree of expansion is
limited with a PS connector)
Configuration without power supply conConfiguration without power supply
nector
connector ((every
y L2 station has a sepap
rate power supply)
Configuration with programmer
connector
Configuration
g
with ppower supply
pp y connector
Legend for
following sections
Section 3.2
Section 3.3
Section 3.6
Section 3.4
Section 3.5
Section 3.6
Configuration options are described in the following using illustrations for a
possible installation. We use the following legend:
T connector
Power supply connector
PS
PS
Programmer connector
PG
Bus cable
Power supply (PS) cable
Bus cable incl. PS cable
cntr
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.
3-2
Distributed I/O System DP/ASi Link
EWA 4NEB 710 6055-02b
Configuration Options
3.2
Configuration without T Connector and with Power Supply Connector
Definition
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.
Advantage
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.
Constraint
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).
Cables
You use cables of different design for the installation:
If you wish to use prefabricated Siemens cables, please turn to section 4.4.4.
If you wish to prepare your own cables, please turn to section 4.4.7.
Installation
Fig. 3-2 shows a possible installation for the configuration with a power supply connector and without a T connector:
External
power supply
PScntr
SV
DP/ASi link
PROFIBUS-DP
DP/ASi link
Figure 3-2
Distributed I/O System DP/ASi Link
EWA 4NEB 710 6055-02b
PROFIBUS-DP and power supply looped through on DP/ASi link
3-3
Configuration Options
3.3
Configuration with T Connector and with Power Supply Connector
Definition
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.
Advantage
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.
Constraint
The degree of expansion with a PS connector is limited (refer to section 3.4).
Cables
You use cables of different design for the installation:
If you wish to use prefabricated Siemens cables, please turn to section 4.4.4.
If you wish to prepare your own cables, please turn to section 4.4.7.
Installation
Fig. 3-3 shows a possible installation for the configuration with a power supply connector and with a T connector:
External
power supply
PS
PS
cntr
DP/ASi link
PROFIBUS-DP
DP/ASi link
Figure 3-3
3-4
PROFIBUS-DP and power supply looped through by means of T
connector
Distributed I/O System DP/ASi Link
EWA 4NEB 710 6055-02b
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
Figure 3-4
Distributed I/O System DP/ASi Link
EWA 4NEB 710 6055-02b
With spur line
Rule for installation with a T connector
3-5
Configuration Options
3.4
Configuration with Several Power Supply Connectors
Constraint for
installation with
one power supply
connector
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
<1A
80 m
<2A
40 m
<4A
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.
Remedy
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.
External
power supply
PSSV
cntr
DP/ASi link
PROFIBUS-DP
PROFIBUS-DP1
DP/ASi link
External
power supply
PSPS
cntr
1
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
3-6
DP/ASi link
Configuration with several power supply connectors
Distributed I/O System DP/ASi Link
EWA 4NEB 710 6055-02b
Configuration Options
3.5
Configuration without Power Supply Connector
Definition
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.
Advantage
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.
Cables
You use cables of different design for the installation:
If you wish to use prefabricated Siemens cables, please turn to section 4.4.4.
If you wish to prepare your own cables, please turn to section 4.4.7.
Installation
Fig. 3-6 shows a possible installation for the configuration without a power
supply connector.
DP/ASi link
External
power supply
PROFIBUS-DP
External
power supply
Two-wirecable (!!)
Figure 3-6
Distributed I/O System DP/ASi Link
EWA 4NEB 710 6055-02b
DP/ASi link
PROFIBUS-DP looped through T connectors –
external power supply fed separately to every slave station
3-7
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
Figure 3-7
3-8
With spur line
Rule for installation with a T connector
Distributed I/O System DP/ASi Link
EWA 4NEB 710 6055-02b
Configuration Options
3.6
Configuration with Programmer Connector
Definition
If you wish to operate the programmer on the PROFIBUS-DP in an
IP 66/IP 67 environment, you require a programmer connector.
Connecting the
programmer
To 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).
Installation
Fig. 3-8 shows a possible installation for the configuration with a programmer connector.
External
power supply
IP 66/IP 67 world
PS
PS
cntr.
PG
DP/ASi link
PROFIBUS-DP
Adapter cable
DP/ASi link
Programmer
connecting
cable
DP/ASi link
IP 20 world
Figure 3-8
Distributed I/O System DP/ASi Link
EWA 4NEB 710 6055-02b
Configuration with programmer connector
3-9
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
3-10
Max. 1 1.5 m
Distributed I/O System DP/ASi Link
EWA 4NEB 710 6055-02b
Installing and Wiring the DP/ASi Link
4
Introduction
In this chapter you will learn how the DP/ASi link is installed mechanically
and electrically.
Objective
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 this chapter
In Section
Distributed I/O System DP/ASi Link
EWA 4NEB 710 6055-02b
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
4-1
Installing and Wiring the DP/ASi Link
4.1
Installation
Rules
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 distortions).
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.
IP 66/IP 67 degree
of protection
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.
Installing
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:
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.
4-2
Distributed I/O System DP/ASi Link
EWA 4NEB 710 6055-02b
Installing and Wiring the DP/ASi Link
4.2
Electrical Wiring of DP/ASi Link
Introduction
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.
Characteristics
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 this section
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
Installing and Wiring the DP/ASi Link
4.2.1
Grounded Installation
Introduction
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.
Rules
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 external 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 connection 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 Table 4-3).
All machine parts have to be grounded.
Use a minimum diameter of 10 mm2 for equipotential bonding and
ground connections.
4-4
Distributed I/O System DP/ASi Link
EWA 4NEB 710 6055-02b
Installing and Wiring the DP/ASi Link
Installation
Grounded installation of the DP/ASi link is shown in the diagram below.
L1
L2
L3
N
PI
(1)
(2)
(4)
(3)
L+ (5)
G
L+
G
G
PI
PI
24 V
PS
cntr.
L+
G
PI
DP/ASi
link
Connection
for grounded
installation
(6)
L+
G
PI
G
Figure 4-1
Distributed I/O System DP/ASi Link
EWA 4NEB 710 6055-02b
24 V
(6)
DP/ASi
link
L+
Grounded installation of DP/ASi link
4-5
Installing and Wiring the DP/ASi Link
4.2.2
Ungrounded Installation
Definition
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.
Rules
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 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)).
The 24 VDC supply should be fused separately (5).
With both grounded and ungrounded installation,connect the PI connection 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 Table 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
Installing and Wiring the DP/ASi Link
Installation
Ungrounded installation of the DP/ASi link is shown in the diagram below.
L1
L2
L3
N
PI
(1)
(2)
(3)
(7) >U
G
L+
(5)
L+
G
G
PI
PI
24 V
PS
cntr.
(6)
G
L+
L+
G
PI
L+
G
PI
DP/ASi
link
(6)
DP/ASi
link
24 V
Figure 4-2
Distributed I/O System DP/ASi Link
EWA 4NEB 710 6055-02b
Ungrounded installation of DP/ASi link
4-7
Installing and Wiring the DP/ASi Link
4.2.3
Connecting the DP/ASi Link to ASi and PROFIBUS-DP
Pinout
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
Table 4-3.
Connecting the
ASi
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
Table 4-2.
You can also connect the ASi by using a 2-wire round cable.
Table 4-2
Pin
1
1
2
Connecting the
PROFIBUS-DP
4-8
Pin assignment of ASi terminal connection
Assignment
ASi cable )
View
1
1 2
2
Unused
3
ASi cable * 2
4 3
4
Unused
View: mating side
Brown on Siemens sourced cable
Blue on Siemens sourced cable
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 Table 4-3.
Distributed I/O System DP/ASi Link
EWA 4NEB 710 6055-02b
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
Meaning
1
–
Reserved
2
A1
Data line P
3
–
Reserved
4
B2
Data line N
5
–
Reserved
6
–
Reserved
7
P24V
24 V input voltage
8
M24V
24 V reference potential
9
PI
Protective conductor
10
–
Reserved
11
–
Reserved
12
–
Reserved
1
2
Power supply
!
Pin assignment of 12-pin device connector
View
View: mating side
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.
Unused device
connector
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
Installing and Wiring the DP/ASi Link
4.3
Commissioning
In this section
In this section you will learn what you have to take into consideration to
commission the DP/ASi link.
Sequence
You commission the DP/ASi link in several steps.
Action
Note
Install and wire the ASi completely. Connect
the ASi power supply to the ASi cable.
Refer to the instructions for the different ASi
slaves and modules concerned to learn how
to install them.
Step
1
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.
Refer to section 4.2
6
Connect the 24 V power supply for the DP/
ASi link to the remaining device connector.
Refer to section 4.2
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).
Distributed I/O System DP/ASi Link
EWA 4NEB 710 6055-02b
Installing and Wiring the DP/ASi Link
4.3.1
Selecting the Station Number for PROFIBUS-DP
Definition
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.
Selecting station
numbers
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
Switch 8
Range of values
Station number selection on DIP switch block
Meaning
Refer to
OFF
Station number on DIP switch block is
valid. The station number in the EEPROM
is reset to station number 126
Section 4.3.2
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
Installing and Wiring the DP/ASi Link
4.3.2
Setting a Station Number on the DIP Switch Block
Station number
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.
DIP switch block
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.
Switch 8
With switches 1 through 7, you set the
station number.
Example: Switches 1, 5 and 6 at ON
20)24)25+1)16)
RUN
32 +49
ON
12 3 4 5 6 7 8
DP / ASI LINK
ASi POWER FAIL
BF
SINEC
L2-DP
+ PS
CONFIG ERROR
AUTOPROG AV
ASi
3
–
1
+
CONFIG MODE
1 +
2
+
4
+
8
+
16 = ASi-SLAVE FAIL
6ES7 156-0AA01-0XA0
Figure 4-3
123456
Location of DIP switch block
Converting station
numbers
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.
Replace cover
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
Installing and Wiring the DP/ASi Link
4.3.3
Station Number in EEPROM
Default station
number
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.
Modifying station
numbers
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
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
4-14
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.
Distributed I/O System DP/ASi Link
EWA 4NEB 710 6055-02b
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
Installing and Wiring the DP/ASi Link
4.4.1
T Connector (6ES5 762-2CT11)
Usage
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.
Characteristics
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.
Connections
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.
Figure 4-4
4-16
T connector
Distributed I/O System DP/ASi Link
EWA 4NEB 710 6055-02b
Installing and Wiring the DP/ASi Link
4.4.2
Power Supply Connector (6ES5 762-2CS11)
Usage
The power supply connector is used to link the PROFIBUS-DP and the 24
VDC external power supply for the DP/ASi link.
Characteristics
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 modules that can be connected (refer to section 3.4)
Is not a bus station having a station number.
Is secured without opening the cover.
Connections
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
Installing and Wiring the DP/ASi Link
4.4.3
Programmer Connector (6ES5 762-2CA12)
Usage
A programmer connector is used to connect the programmer within the
IP 66/IP 67 environment to the PROFIBUS-DP.
Characteristics
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 connector 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.
Connections
A programmer connector has three bus connections:
Connection for an ”incoming” PROFIBUS-DP (possibly with power supply, 12-pin socket).
Connection for an ”outgoing” PROFIBUS-DP (possibly with power supply, 12-pin socket).
Connection for adapter cable (refer to section 4.4.6) to the programmer
(12-pin socket)
4-18
Distributed I/O System DP/ASi Link
EWA 4NEB 710 6055-02b
Installing and Wiring the DP/ASi Link
4.4.4
Cables
Types of cables
The PROFIBUS-DP features different installation options, for which you
need the correct cables. There are the following types of cables.
Table 4-5
No. of
Cores
PROFIBUS-DP cables
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
Designs
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 mm2 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
Installing and Wiring the DP/ASi Link
Order Numbers
Table 4-6
The following table shows the Order Numbers for the standard lengths:
Order Numbers for cables in standard lengths
(core cross-section 0.75 mm2, maximum current loading 4 A)
Preparation
Cable (Standard
Sheath)
Cable (Non-welding
Sheath)
5-core cable (unprepared)
6ES5 717-11
6ES5 718-11
5-core cable, terminated at one end
(6-pin circular socket)
6ES5 717-21
6ES5 718-21
5-core cable, terminated at both ends
(6-pin circular socket/6-pin circular connector)
6ES5 717-31
6ES5 718-31
5-core cable, terminated at one end
(12-pin circular connector)1
6ES5 717-61
6ES5 718-61
5-core cable, terminated at both ends
(12-pin circular connector)
6ES5 717-71
°°°
6ES5 718-71
°°°
Length
0.5 m
1m
2m
5m
10 m
1
AB4
BB0
BC0
BF0
CB0
AB4
BB0
BC0
BF0
CB0
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
1
Order Numbers for cables having a Z number
(core cross-section 0.75 mm2, maximum current loading 4 A)
Preparation
Cable (Standard
Sheath)
Cable (Non-welding
Sheath)
5-core cable (unprepared)
6ES5 717-1AA01-Z
6ES5 718-1AA01-Z
5-core cable, terminated at one end
(6-pin circular socket)
6ES5 717-2AA01-Z
6ES5 718-2AA01-Z
5-core cable, terminated at both ends
(6-pin circular socket/6-pin circular connector)
6ES5 717-3AA01-Z
6ES5 718-3AA01-Z
5-core cable, terminated at one end
(12-pin circular connector)1
6ES5 717-6AA01-Z
6ES5 718-6AA01-Z
5-core cable, terminated at both ends
(12-pin circular connector)
6ES5 717-7AA01-Z
6ES5 718-7AA01-Z
Do not use for separate power supply feed line (as bus cable connected ³ bus disturbances possible).
4-20
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Installing and Wiring the DP/ASi Link
4.4.5
Terminating Resistor (6ES5 755-2CA11)
Usage
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
Characteristics
The terminating resistor has the
IP 66/IP 67 degree of protection (refer to installation rules, section 4.1)
Figure 4-5
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Terminating resistor
4-21
Installing and Wiring the DP/ASi Link
4.4.6
Adapter Cable (6ES5 755-8CA11)
Usage
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
Test and commissioning (not ET 200 Handheld)
Diagnostic functions (not ET 200 Handheld)
Characteristics
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.
Connections
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)
To connect the programmer, you also require the programmer connecting
cable.
Figure 4-6
4-22
Adapter cable
Distributed I/O System DP/ASi Link
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Installing and Wiring the DP/ASi Link
4.4.7
Wiring of PROFIBUS-DP
Introduction
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).
Circular
connectors
For the bus connection and connection of the power supply, you require
12-pin circular connectors.
Table 4-8 shows the Order Number for the 12-pin circular connector:
Table 4-8
Order Number for circular connector
Circular Connector
12-pin connector with pin insert
(unprepared)
Rules: circular
connectors
Order Number
6ES5 760-2CB11
The following applies to all connections to circular connectors:
Strip sufficient insulation from the cable so that the screen is firmly enclosed 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:
– always connect terminal A to the green wire
– connect terminal B to the red wire
Power supply
cable
!
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.
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4-23
Installing and Wiring the DP/ASi Link
4-24
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Configuring the DP/ASi Link
5
Introduction
To operate the DP/ASi link to the PROFIBUS-DP, you must configure and
assign parameters to it.
Method
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).
STEP 7
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 contains a detailed online Help for support when you are configuring and assigning parameters.
COM ET 200
Windows
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
If you wish to operate the DP/ASi link on an external master, section 5.3 is
relevant for you.
Parameterization
data
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.
Distributed I/O System DP/ASi Link
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5-1
Configuring the DP/ASi Link
In this chapter
5-2
In Section
You Will Find
on Page
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
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Configuring the DP/ASi Link
5.1
Configuring – for Example with COM ET 200 Windows (Version 2.0
or Later)
Method
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. To insert further DP slaves, repeat steps 3 to 5 above.
Configuring
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.
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5-3
Configuring the DP/ASi Link
Parameterize
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”.
Actual
configuration
By actual configuration we mean the actual configuration of the ASi as detected by the DP/ASi link.
Setpoint
configuration
By setpoint configuration we mean the configured configuration of the ASi
as stored in the DP master.
Actual equal to
setpoint
configuration
”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 less than or
equal to setpoint
configuration
”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 ”actual is equal to setpoint configuration”, that is, the DP/ASi link does not
start up.
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).
Hex...
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.
Re-configuring
You can later add more ASi slaves to the DP/ASi link or remove them later.
To do this, select the corresponding DP/ASi link from the master system concerned.
5-4
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Configuring the DP/ASi Link
5.2
Example Using COM ET 200 Windows (Version 2.0 or Later)
Model structure
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 Table 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
1
Method
Input/Output Assignment
4 inputs
I/O Code
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 selected.
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.
Confirming inputs
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.
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5-5
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
5-6
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
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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
Configure the DP/ASi link in the following order:
Action
Step
Meaning
1
Define the installation of the ASi.
From the installation, you learn the total number of inputs and outputs that you will assign.
2
Optimize the address assignment of the
input and output data of the DP/ASi link
(refer to appendix C.3).
In this way you make optimum use of the limited address area.
3
Create the parameterization data from the
address assignment received.
You require the parameterization data of the
ASi slaves for the parameterization message.
4
Create the parameterization message (refer to appendix C.1).
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).
In the configuration message, define the number of bytes for the input and output data.
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.
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5-7
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
Configure the DP/ASi link in the following order:
Action
Step
Meaning
1
Define the ASi installation.
From the installation, you learn the total number of inputs and outputs that you will assign.
2
Create the parameterization message (refer to appendix C.4).
The DP/ASi link requires the data contained in
the parameterization message during power up.
3
Create the configuration message (refer to
appendix D.3).
In the configuration message, define the number of bytes for the input and output data.
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.
5-8
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Configuring the DP/ASi Link
5.3.3
Default Start-Up
Introduction
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.
Requirements for
DP standard
master
The DP standard master must be able to process the following messages:
20-byte configuration messages
7-byte parameterization messages
32-byte diagnostic messages
Characteristics
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 FH to
all the ASi slaves connected.
The ASi slaves present during start-up are detected as the actual configuration 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.
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5-9
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
n
Subsequent
modification of
ASi configuration
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
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
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.
5-10
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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.
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5-11
Configuring the DP/ASi Link
5-12
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6
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
You use SFC 59 to read a data record from the DP/ASi link. The parameters
are described in the table below:
Parameters for SFC 59 “RD_REC”
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
Distributed I/O System DP/ASi Link
EWA 4NEB 710 6055-02b
INT
I, O, M, D, L
If an error occurs while a function is being processed, the return value contains an error code.
6-1
DP/ASi Link to S7
Table 6-1
Parameters for SFC 59 “RD_REC”, continued
Parameter
Declaration
Data Type
Memory Area
Description
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”
Table 6-2
You use the SFC 58 to transfer a data record to the DP/ASi link. The parameters are described in the table below:
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 processed, the return value contains an error code.
BUSY
OUTPUT
BOOL
I, O, M, D, L
BUSY = 1: Write operation still being processed
Further reading
In this chapter
6-2
You will find a detailed description of SFC 58 and SFC 59 in the System and
Standard Functions reference manual.
In Section
You Will Find
on Page
6.1
Reading Data Records with SFC 59 “RD_REC”
6-3
6.2
Writing Data Records with SFC 58 “WR_REC”
6-5
6.3
Example of Re-assigning Parameters to the DP/ASi Link
with S7
6-6
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DP/ASi Link to S7
6.1
Reading Data Records with SFC 59 ”RD_REC”
Data record 140
Table 6-3
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.
Structure of data record 140: Read lists and flags
Description
Byte
Contents
Read lists
Bit (corresponds to ASi address)
7
6
5
4
3
2
1
0
0
7
6
5
4
3
2
1
–––
1
15
14
13
12
11
10
9
8
Bits:
2
23
22
21
20
19
18
17
16
“1” ASi slave
presentt
3
31
30
29
28
27
26
25
24
4
7
6
5
4
3
2
1
–––
5
15
14
13
12
11
10
9
8
6
23
22
21
20
19
18
17
16
7
31
30
29
28
27
26
25
24
8
7
6
5
4
3
2
1
–––
9
15
14
13
12
11
10
9
8
10
23
22
21
20
19
18
17
16
11
31
30
29
28
27
26
25
24
ASi slaves
present
ASi slaves
enabled
“0”
0 ASi slave not
present
ASi slaves
configured
Read flags
Bit
Bits:
“1” applicable
“0” not applicable
pp
Version and release date of DP/
ASi link
Version
Date
Distributed I/O System DP/ASi Link
EWA 4NEB 710 6055-02b
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)
6-3
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
6-4
Parameter Echoes of ASi Slaves (4 Bits in All Cases)
Bits 4 to 7
Bits 0 to 3
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
Distributed I/O System DP/ASi Link
EWA 4NEB 710 6055-02b
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
Byte
Error codes in data
record 2
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
Meaning
Byte 1
Action
Hex.
Dec.
00H
000
No error
–––
01H
001
ASi slave not enabled
–––
02H
002
Source slave not present
Input error; enter correct value
03H
003
ASi slave with address 0 present
–––
04H
004
Destination slave already present
–––
05H
005
Source address cannot be deleted
–––
06H
006
–––
07H
007
Source address could not be programmed with
new address
08H
008
Could not write new parameters
Input error; enter correct value
09H
009
No meaning
–––
0AH
010
No meaning
–––
0BH
011
Unknown job number
Input error; enter correct value
0CH
012
Unknown data record
Input error; enter correct value
0DH
013
Unknown ASi Manager OP code
Input error; enter correct value
0EH
014
Message too long or too short
Correct number of bytes
0FH
015
Automatic programming enabled
Repeat job
10H
016
Argument too large; source address = destination
address
Input error; enter correct argument
11H
017
ASi master is in Offline mode, job is not possible
Wait until the DP master is in Operating mode
12H
018
Configuration in DP/ASi Link erroneous
Check configuration
Distributed I/O System DP/ASi Link
EWA 4NEB 710 6055-02b
6-5
DP/ASi Link to S7
6.2
Writing Data Records with SFC 58 “WR_REC”
Data record 142
Data record 142 writes parameters to ASi slaves.
Table 6-7
Structure of data record 142: Write parameters to ASi slaves
Byte
Data record 143
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
Data record 144
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.
Table 6-9
Srtructure of data record 144: Set DP/ASi link to “Offline” mode
Byte
0
Contents
“1”: Set “Offline” mode
“0”: Reset “Offline” mode
6-6
Distributed I/O System DP/ASi Link
EWA 4NEB 710 6055-02b
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”
REC
IOID
LADDR
RECNUM
RET_VAL
BUSY
SFC59 ––Read Data Record
:=M0.0
:=B#16#54
:=W#16#0
:=B#16#8C
:=MW100
:=M102.0
RECORD :=P#DB59.DBX 0.0 BYTE 22
Distributed I/O System DP/ASi Link
EWA 4NEB 710 6055-02b
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)
6-7
DP/ASi Link to S7
Destination area of
DR140
Address
The destination area of data record 140 is located in data block DB 59, for
example. The following table describes the contents of DB59:
Name
+0.0
Vorh_Slaves
*1.0
+4.0
Initial Value
Comment
ARRAY[0..3]
Slaves present
BYTE
Akt_Slaves
*1.0
+8.0
Type
STRUCT
0.0
ARRAY[0..3]
Slaves enabled
BYTE
Proj_Slaves
*1.0
ARRAY[0..3]
Slaves configured
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
6-8
END_STRUCT
Distributed I/O System DP/ASi Link
EWA 4NEB 710 6055-02b
7
Operating Modes
Introduction
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.
CONFIG MODE
In this chapter
The configuration mode, which is assigned to the CONFIG MODE LED, is
provided for extensions of the SIMATIC S7.
In Section
Distributed I/O System DP/ASi Link
EWA 4NEB 710 6055-02b
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
7-1
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
1
The power supply of the DP/ASi link is
turned on.
Start
2
The two interface controllers for the ASi and
the PROFIBUS-DP are initialized. The DP/
ASi link enters a defined basic state.
Initialize interface controller
3
The DP/ASi link checks for the valid station
address.
Switch 8 of DIP switch
block+OFF?
YES+DIP switch block: proceed to step 4,
NO
NO+EEPROM: proceed to step 5.
YES
4
Read out DIP switch block
The DP/ASi link applies the station address
set on the DIP switch block.
Proceed to step 6.
5
6
Read out EEPROM
Turn on all LEDs
The DP/ASi link applies the station address
stored in the EEPROM. The EEPROM is
checked simultaneously.
The DP/ASi link turns on all eleven LEDs
for test purposes. You can thus detect on site
whether a LED has failed.
Delete internal data
7
8
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
A
7-2
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.
Distributed I/O System DP/ASi Link
EWA 4NEB 710 6055-02b
Operating Modes
Step
Flowchart
Meaning
9
The DP/ASi link, as the ASi master, periodically polls the I/O code and the ID code of
all the ASi slaves possible.
A
10
During the polling cycle, the DP/ASi link
must detect at least one ASi slave.
Poll the data of all ASi slaves
Was at least one ASi
slave detected?
11
YES
12
Read in parameterization message
NO
Does the
parameterization message correspond to the
configuration?
YES
13
Read in configuration message
14
NO
Do the contents
of the configuration message correspond to the detected configuration?
YES
15
Reset LEDs
Operation
Error detection
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.
NO
The DP/ASi link waits for the parameterization message from the DP master.
Once the parameterization message has been
received, the DP/ASi link compares the setpoint and actual configurations.
If you selected the ”actual is equal to setpoint configuration”, start-up is resumed
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
to setpoint configuration”, you return to
step 7 only if unconfigured ASi slaves are
present.
The DP/ASi link waits for the configuration
message.
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.
The DP/ASi link resets the LEDs.
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.
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
7-3
Operating Modes
7.2
Normal Operation
Method of
operation
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.
Tasks
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
Monitoring the ASi
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.
Monitoring the
PROFIBUS-DP
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
If an error is detected, the DP/ASi link generates a diagnosis, which is
fetched by the DP master (refer to Chapter 8).
ASi power failure
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.
7-4
Distributed I/O System DP/ASi Link
EWA 4NEB 710 6055-02b
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
Operating Modes
7.3
Automatic Programming
Definition
”Automatic programming” is an operating mode that occurs only when one
ASi slave fails.
Display
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.
Meaning
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.
Constraint
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.
Replacing
ASi slaves
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.
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.
7-6
Distributed I/O System DP/ASi Link
EWA 4NEB 710 6055-02b
Diagnostics and Error Handling
8
Introduction
You use the chapter entitled ”Diagnostics and Error Handling” to evaluate the
diagnosis of the DP/ASi link and to take the necessary action.
Diagnostic options
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 messages 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.
Online Help
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.
Diagnosing with
IM308C
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
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 this chapter
In Section
Distributed I/O System DP/ASi Link
EWA 4NEB 710 6055-02b
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
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).
DP / ASi LINK
RUN
ASi POWER FAIL
BF
SINEC
L2 DP
+ PS
ASi
3
CONFIG ERROR
1
AUTOPROG AV
+
CONFIG MODE
1 +
2 +
4 +
8 +
16 = ASi SLAVE FAIL
6ES7 156-0AA01-0XA0
Figure 8-1
Display elements
Table 8-1
Name
RUN
BF
123456
Location of LEDs of DP/ASi link
The meanings of the different LEDs is shown in Table 8-1.
Meanings of display LEDs
Color
State
Green
On
24 V power supply is in order.
Off
24 V power supply is either not present or below permitted limit
value.
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
has not been configured.
Red
On
Off
ASi POWER Red
FAIL
On
Off
Function
PROFIBUS-DP is in data cycle.
ASi power supply is either not present or below the permitted limit
value.
ASi power supply is in order.
CONFIG
ERROR
Yellow On
AUTPROG
AV
Green
CONFIG
MODE
No function
ASi SLAVE
FAIL
Red
8-2
Configuration error on ASi
Off
On
Configuration is in order
Automatic programming is possible.
Off
Automatic programming is not possible.
These five LEDs are used to indicate the failed ASi slave with the
lowest ASi address.
Distributed I/O System DP/ASi Link
EWA 4NEB 710 6055-02b
Diagnostics and Error Handling
ASi slave address
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.
Example
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.
Normal operation
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.
Start-up
During automatic start-up, all eleven LEDs are turned on briefly. This behavior allows you to check that all LEDs are in order.
LED display
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
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.
Table 8-2
LED
RUN
LED display for modes and bus faults on PROFIBUS-DP
Reason
Remedy
24 V power supply
This LED goes on as soon as the Check the 24 V power supply.
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.
LED off
BF
Meaning
LED on
Distributed I/O System DP/ASi Link
EWA 4NEB 710 6055-02b
Check the PROFIBUS-DP for
interrupt.
Check the DP master for availability.
8-3
Diagnostics and Error Handling
ASi diagnostics
Table 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
Reason
Meaning
Remedy
ASi POWER FAIL
The ASi power supply
has failed.
Data exchange between the DP/ Check the ASi power supply.
ASi link and the ASi slave is no Check ASi connections.
longer possible.
CONFIG ERROR
Actual and setpoint configurations are not identifical.
During power up:
”Actual is equal to setpoint
Check the ASi slave having the
address indicated.
Check whether a slave type different from that specified in the
”Actual is less than setpoint parameterization message (different I/O or ID code) is being
configuration”:
data exchange possible (re- used.
fer to section 5.1)
configuration”:
no data exchange
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.
AUTOPROG AV
Precisely one ASi slave
has failed.
CONFIG MODE
No meaning
8-4
The DP/ASi link enables one
ASi slave having ASi address 0
The DP/ASi link is in au- automatically to be allocated the
ASi address of the failed ASi
tomatic programming
slave.
mode.
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
Diagnostics and Error Handling
Combinations
Table 8-4
In addition to the different displays described in Table 8-2 and Table 8-3,
combinations of several LEDs are also possible. Table 8-4 shows you the
meanings of the displays.
Combination of several LEDs
LEDs
Meaning
Remedy
All on
DP/ASi link starting up.
–
All on except ASi
POWER FAIL
A fault has occurred in the PROFIBUS-DP
during start-up.
Check the PROFIBUS-DP, the DP master
and the bus connection.
ASi SLAVE FAIL
flashing
DP/ASi link has not detected an ASi slave.
DP/ASi link not starting.
Check the ASi cable and the cable termination.
BF flashing
Station number 126 or 127 is set on the DIP
switch block or switch 8 is in OFF position.
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.
CONFIG ERROR
and all ASi SLAVE
FAIL light
ASi slave failure
Normal mode: ASi slave 31 has failed
S7 start-up: data record 128 missing
Check your configuration. Possibly no ASi
slaves have been configured.
If several ASi slaves have failed, the failed ASi slave having the lowest ASi
address is indicated with the ”ASi-SLAVE FAIL” 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.
DP/ASi link reaction
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.
Check
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
Diagnostics and Error Handling
8.2
Diagnostics by Means of User Program
In this chapter
8-6
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
8-9
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 with the IM308C
8-14
8.2.6
Module and First Station Diagnoses with the S7/M7 DP
Master
8-16
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)
8-21
Distributed I/O System DP/ASi Link
EWA 4NEB 710 6055-02b
Diagnostics and Error Handling
8.2.1
Diagnostic Fundamentals in Operations with an IM308C
FB IM308C
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.
Exchanging diagnostic data
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.
Selecting a diagnosis
You have two options for requesting a diagnosis:
1. Master diagnostics as overview diagnosis and
2. Slave diagnostics as secondary diagnosis.
Master 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
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
Name
DPAD
IMST
FCT
GCGR
TYP
STAD
LENG
ERR
Explanation
:A
:SPA
:IM308C
:
:
:
:
:
:
:
:
DB 30
FB 192
KH
KY
KC
KM
KY
KF
KF
DW
Diagnostic status
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
F800
0, 3
SD
0
0, 20
+1
26
0
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.
Fault remedied
8-8
If there is no longer a reason for a diagnosis, the DP/ASi link sends a final
diagnostic message without any further error messages.
Distributed I/O System DP/ASi Link
EWA 4NEB 710 6055-02b
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
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.
SFC 13
“DPNRM_DG”
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.
Table 8-5
Parameters for SFC 13 “DPNRM_DG”
Parameter
Declaration
Data Type
Memory Area
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
DP/ASi link.
RET_VAL
OUTPUT
INT
I, O, M, D, L
If an error occurs while the function is being
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.
RECORD
OUTPUT
ANY
I, O, M, D, L
Destination area for diagnostic data after being
read. Only data type BYTE is allowed.
BUSY
OUTPUT
BOOL
I, O, M, D, L
BUSY = 1: Read process continuing.
Description
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 interrupt 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
Diagnostics and Error Handling
8.2.3
Structure of Diagnosis
Introduction
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).
Structure for
IM 308C
The diagnostic message for the IM308C contains 26 bytes of data. The structure of the complete diagnosis is shown in Table 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
Manufacturer ID (801BH)
5
8-10
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.
Distributed I/O System DP/ASi Link
EWA 4NEB 710 6055-02b
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 Table 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
Manufacturer ID (801BH)
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)
Distributed I/O System DP/ASi Link
EWA 4NEB 710 6055-02b
8-11
Diagnostics and Error Handling
8.2.4
Contents of DP Standard Part
DP standard part
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.
Station status 1
You will find a description of the structure of station status 1 in Table 8-8.
The default setting is 02H.
Table 8-8
Bit
Station status 2
Structure of station status 1
Value
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.
You will find a description of the structure of station status 2 in Table 8-9.
The default setting is 05H.
Table 8-9
Bit
8-12
Contents
Structure of station status 2
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.
Distributed I/O System DP/ASi Link
EWA 4NEB 710 6055-02b
Diagnostics and Error Handling
Station status 3
Station status 3 is reserved for later applications. Its value is always 00H.
Station number of
DP master
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 FFH. This means
that the DP/ASi link has so far not been assigned parameters by any DP master.
Manufacturer ID
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 (801BH).
Distributed I/O System DP/ASi Link
EWA 4NEB 710 6055-02b
8-13
Diagnostics and Error Handling
8.2.5
Module and First Station Diagnoses with the IM308C
Area
Module and first station diagnoses are contained in bytes 6 to 15.
Contents
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
42H
Header of module diagnosis including length specification in
accordance with DP standard.
This diagnosis is not used by the DP/ASi link.
7
00H
Module diagnosis
This diagnosis is not used by the DP/ASi link.
8
08H
First station diagnosis with 8 bytes including header
The first station diagnosis comprises bytes 8 to 15.
8-14
9
XXH
This area is prepared for an extended diagnosis by your S7.
10
04H
Reserved
11
00H
Reserved
Distributed I/O System DP/ASi Link
EWA 4NEB 710 6055-02b
Diagnostics and Error Handling
Diagnostic data
Part 1
Table 8-11
Byte1
The first part of the station diagnostic data of the DP/ASi link as a DP slave
is structured as shown in Table 8-11. A message is indicated by a ”1”.
Structure of diagnosis, bytes 12 to 15
Meaning
Reason/Reaction
Remedy
12.0
Group error message for
module
An error is present.
Evaluate the other error messages.
12.1
Internal DP/ASi link fault;
group error message
Either there are no parameterization data or a serious software error has occurred on the DP/
ASi link.
Check whether the parameterization and configuration messages
are present in your DP master.
12.2
ASi error; external DP/
ASi link error
Either there is a configuration error Compare the data of your configuof the ASi or an ASi slave has
ration with the actual set-up.
failed.
12.4
ASi power supply
There is no ASi power supply.
Check the ASi power supply.
Check the connections of ASi.
12.7
ID code or I/O code of an
ASi slave erroneous
(occurs during start-up only)
13.0 to 4
15.2
1
The ID code or the I/O code of an
existing ASi slave does not correspond to the data in the parameterization message.
Check whether a different slave
type (different I/O or ID code)
from that specified in the parameterization message is being used.
CPU class
–
EEPROM of DP/ASi link de- An internal self-test has deterfective
mined that the EEPROM is defective.
Consult your point of contact at
Siemens.
Unnamed bits are without significance
Distributed I/O System DP/ASi Link
EWA 4NEB 710 6055-02b
8-15
Diagnostics and Error Handling
8.2.6
Module and First Station Diagnoses with the S7/M7 DP Master
Area
Module and first station diagnoses are contained in bytes 6 to 16.
Contents
The contents of bytes 6 to 12 is shown in Table 8-12.
Table 8-12
Structure of bytes 6 to 12 of diagnostic message for operations with
IM308C
Byte
Contents
6
43H
Contents
Header and length of module diagnosis including length
specification (3 bytes) in accordance with DP standard.
This diagnosis is not used by the DP/ASi link.
7
XXH
Module diagnosis
This diagnosis is not used by the DP/ASi link.
8
00H
Module diagnosis
This diagnosis is not used by the DP/ASi link.
8-16
9
0FH
Header and length of station diagnostics (15 bytes).
10
01H
S7 diagnostic interrupt ID
11
04H
S7 slot
12
00H
Reserved
Distributed I/O System DP/ASi Link
EWA 4NEB 710 6055-02b
Diagnostics and Error Handling
Diagnostic data
Part 1
Table 8-13
Byte1
13.0
The first part of the station diagnostic data of the DP/ASi link as a DP slave
is structured as shown in Table 8-13. A message is indicated by a ”1”.
Structure of diagnosis, bytes 13 to 16
Meaning
Module malfunction
Reason/Reaction
Group error
Remedy
Refer to other diagnostic data
0 – Interrupt going
1 – Interrupt coming
13.2
External fault
Slave failed
Check and, if necessary, replace
slave
13.3
Channel error present
Difference from setpoint configuration
Compare setpoint and actual configurations
13.4
No external standby supply
No ASi power supply.
Check ASi power supply.
Check ASi connections.
14.0 to 3
Module class: 0110
–
–
(Misc. module)
15.0
User module wrong/missing
Configuration error: incorrect I/O
code, incorrect ID code (start-up
only)
Check I/O and ID codes
15.2
RUN/STOP mode
Modes:
–
0 – Normal mode
1 – Offline
16
1
No meaning
Unnamed bits are without significance
Distributed I/O System DP/ASi Link
EWA 4NEB 710 6055-02b
8-17
Diagnostics and Error Handling
8.2.7
Second Station Diagnosis with the IM308C
Area
The second part of the station diagnostics is contained in bytes 16 to 25.
Contents
The contents of bytes 16 to 19 are shown in Table 8-14.
Table 8-14
Byte
16
Structure of bytes 16 to 19 in diagnostic message
Con
tents
0AH
Contents
Second station diagnostics with 10 bytes including header.
The second station diagnostics covers bytes 16 to 25.
Diagnostic data
Part 2
Table 8-15
Byte1
20.1
17
xxH
This area has been prepared for an extended diagnosis from your S7.
18
04H
Reserved
19
00H
Reserved
The second part of the station diagnostic data of the DP/ASi link, which refer
to the ASi, are spread over two areas. In the first area, as shown in
Table 8-15, you will find ASi-related data. A message is indicated by a ”1”.
Structure of diagnostic data, bytes 20 and 21
Meaning
ASi power supply
Reason/Reaction
ASi power supply has failed.
Remedy
Check the ASi power supply.
Check the connections of the ASi.
20.4
Automatic programming is
possible.
Precisely one ASi slave has failed
(refer to sec tion 7.3).
Replace the failed ASi slave with a
new ASi slave having identical I/O
The address of the failed ASi slave and ID codes.
is indicated by five ASi SLAVE
FAIL LEDs.
21.0
Configuration error:
On start-up:
Remove unconfigured ASi slaves.
Unconfigured ASi slaves pre- Data exchange cannot take place
sent
on PROFIBUS-DP side.
In operation:
Data exchange is possible.
1
Unnamed bits are without significance.
8-18
Distributed I/O System DP/ASi Link
EWA 4NEB 710 6055-02b
Diagnostics and Error Handling
Table 8-15
Structure of diagnostic data, bytes 20 and 21, continued
Byte1
21.1
Meaning
Reason/Reaction
Configuration error:
Remedy
”Actual is equal to setpoint config- Add the missing ASi slaves.
uration”:
configured ASi slaves not
present
data exchange cannot take place
on PROFIBUS-DP side.
”Actual is less than setpoint configuration” and operation:
data exchange is possible
21.2
ID code or I/O code of an
ASi slave erroneous
(occurs only during start-up)
Check whether a different slave
(different ID or I/O code) from that
specified in the parameterization
message is being used.
21.3
Internal DP/ASi error
Parameterization data not present.
Check whether the parameterization and configuration messages
are present in your DP master.
21.4
ASi slave present with address ”0”
You have included an ASi slave
having an address of ”0” in the
ASi.
Modify the ASi address on the ASi
slave.
21.5
1
The ID code or the I/O code of an
existing ASi slave does not correspond to the data in the parameterization message.
EEPROM of DP/ASi link de- An internal self-test has deterfective
mined that the EEPROM is defective.
If byte 20.4 is set simultaneously,
the correct ASi address is set automatically.
Consult your point of contact at
Siemens.
Unnamed bits are without significance.
ASi slave diagnosis
The failure of an ASi slave is indicated by diagnostic bytes 22 to 25.
Byte 22.0 is not assigned. In Table 8-16 you can see the assignment of the
different bits to the ASi address.
Defective ASi slaves are marked with a ”1”.
Table 8-16
Assignment of ASi address to bit positions, bytes 22 to 25
Byte
Bit (Corresponds to ASi Address)
7
6
5
4
3
2
1
0
22
7
6
5
4
3
2
1
–1
23
15
14
13
12
11
10
9
8
24
23
22
21
20
19
18
17
16
25
31
30
29
28
27
26
25
24
1
This position is not assigned. An ASi slave with ASi address 0 is indicated by byte 21.4.
Distributed I/O System DP/ASi Link
EWA 4NEB 710 6055-02b
8-19
Diagnostics and Error Handling
8.2.8
Second Station Diagnosis with the S7/ M7 DP Master
Area
The second part of the station diagnosis is contained in bytes 17 to 23.
Contents
The contents of bytes 17 to 19 are shown in Table 8-17.
Table 8-17
Byte
ASi slave diagnosis
Structure of bytes 17 to 19 in diagnostic message
Contents
Contents
17
60H
Channel type (channel module)
18
00H
Length of overall diagnostic information per channel
19
20H
Number of channel modules
Diagnostic bytes 20 to 23 indicate an ASi slave failure. In Table 8-18, you
will see the assignment of the different bits to the ASi address.
Erroneous ASi slaves are marked ”1”.
Table 8-18
Assignment of the ASi address to bit positions, bytes 20 to 23
Byte
7
6
5
4
3
2
1
0
20
7
6
5
4
3
2
1
1
21
15
14
13
12
11
10
9
8
22
23
22
21
20
19
18
17
16
23
31
30
29
28
27
26
25
24
1
8-20
Bit (Corresponds to ASi Address)
This position is not assigned.
Distributed I/O System DP/ASi Link
EWA 4NEB 710 6055-02b
Diagnostics and Error Handling
8.2.9
Diagnostics for a Default Start-Up with the IM308C
(6ES7 156 0AA00-0XA0 or Later, Issue 3)
Structure
For the default start-up, the diagnostic message contains 32 bytes of data and
complies with the PROFIBUS DP standard. The table below describes the
basic structure of the diagnostic message.
Table 8-19
Basic structure of diagnostic message
Byte(s)
Diagnostic data
(bytes 12 to 15)
Contents
Meaning
0
02H
Station status 1
1
05H
Station status 2
2
00H
Station status 3
3
FFH
Station number, DP Master
4
80H
Manufacturer ID (801BH)
5
1BH
6
1AH
Header and length of module diagnosis
7
01H
Module diagnosis
8
04H
Header and length of first station diagnosis
9
00H
Length of S7 area
10
22H
Part 2 of diagnostic data
11
00H
12 to 15
See Table
8-20
Part 1 of diagnostic data
16 to 31
See Table
8-21
Actual configuration of ASi installation
Diagnostic bytes 12 to 15 indicate an ASi slave failure. Table 8-16 shows the
assignment of the ASi addresses.
Failed ASi slaves are marked ”1”.
Table 8-20
Indication of failed ASi slaves
Byte
Bit (Corresponds to ASi Address)
7
6
5
4
3
2
1
0
12
7
6
5
4
3
2
1
*
13
15
14
13
12
11
10
9
8
14
23
22
21
20
19
18
17
16
15
31
30
29
28
27
26
25
24
*
Byte 12.0 is not assigned.
Distributed I/O System DP/ASi Link
EWA 4NEB 710 6055-02b
8-21
Diagnostics and Error Handling
Actual ASi configuration (bytes 16
to 31)
Bytes 16 to 31 of the diagnostic message indicate the ASi configuration at
the time of the parameterization message. An ASi slave is permanently assigned to every nibble. If an ASi slave is present in the configuration, its hexadecimal I/O code is entered at this point; missing ASi slaves are marked FH.
Table 8-21
Byte
Actual ASi configuration
Bits 7 to 4
Bits 3 to 0
16
Not applicable
I/O code for slave 1
17
I/O code for slave 2
I/O code for slave 3
18
I/O code for slave 4
I/O code for slave 5
19
I/O code for slave 6
I/O code for slave 7
20
I/O code for slave 8
I/O code for slave 9
21
I/O code for slave 10
I/O code for slave 11
22
I/O code for slave 12
I/O code for slave 13
23
I/O code for slave 14
I/O code for slave 15
24
I/O code for slave 16
I/O code for slave 17
25
I/O code for slave 18
I/O code for slave 19
26
I/O code for slave 20
I/O code for slave 21
27
I/O code for slave 22
I/O code for slave 23
28
I/O code for slave 24
I/O code for slave 25
29
I/O code for slave 26
I/O code for slave 27
30
I/O code for slave 28
I/O code for slave 29
31
I/O code for slave 30
I/O code for slave 31
Note
If you require a comparison between the setpoint and actual configurations,
you must do this in the user program.
8-22
Distributed I/O System DP/ASi Link
EWA 4NEB 710 6055-02b
A
Technical Data
Standards and approvals
The DP/ASi link meets the requirements of the Profibus-DP standard, the ASi
standard and UL, CSA and FM approvals.
What are general
technical data?
The general technical data contain the standards and test values maintained
and met by the S7-300 and the test criteria by which the S7-300 was tested.
Heed installation
guidelines
SIMATIC products meet the requirements if you observe, during installation
and operation, to the installation guidelines described in the manuals.
In Section
Distributed I/O System DP/ASi Link
EWA 4NEB 710 6055-02b
You Will Find
on Page
A.1
Standards and Approvals
A-2
A.2
General Technical Data
A-4
A-1
Technical Data
A.1
Standards and Approvals
Introduction
This chapter contains for the distributed I/O system DP/ASi link data concerning
the most important standards whose criteria are met by the DP/ASi link
and
approvals for the DP/ASi link.
IEC 1131
The distributed I/O system DP/ASi link meets the requirements and criteria
of IEC Standard 1131, Part 2.
PROFIBUS DP
The distributed I/O system DP/ASi link meets the requirements and criteria
of EN Standard 50170 Volume 2, PROFIBUS.
ASi standard
The distributed I/O system DP/ASi link meets the requirements and criteria
of the ASi standard.
CE mark
Our products meet the requirements and protective goals of the following EC
Directives and conform to the harmonized European standards (EN) published for programmable logic controllers in the official journals of the European Community:
89/336/EEC ”Electromagnetic Compatibility” (EMC Directive)
73/23/EEC ”Electromagnetic Equipment for Use within Specific Voltage
Limits” (Low-Voltage Directive)
The EC conformity declarations are made available for the cognizant authorities at:
Siemens Aktiengesellschaft
Bereich Automatisierungstechnik
AUT E 14
Postfach 1963
D-92209 Amberg
A-2
Distributed I/O System DP/ASi Link
EWA 4NEB 710 6055-02b
Technical Data
EMC Directive
SIMATIC products are designed to operate in an industrial environment.
With a one-shot approval, SIMATIC products may also be used for domestic
purposes (domestic, business and industry, small enterprises). The one-shot
approval has to be obtained from an authority or test center. In Germany,
one-shot approvals are issued by the Federal Office for Posts and Telecommunications (Bundesamt für Post und Telekommunikation) and its branch
offices.
Application
Requirement for
Radio Interference
Noise Immunity
Industry
EN 50081-2 : 1993
EN 50082-2 : 1995
Domestic
One-shot approval
EN 50082-1 : 1992
PNO
The DP/ASi link meets the requirements of the PNO (PROFIBUS Users’ Organization).
UL approval
UL Recognition Mark
Underwriters Laboratories (UL) in accordance with
Standard UL 508, File No. 116536
CSA approval
CSA Certification Mark
Canadian Standard Association (CSA) in accordance with
Standard C22.2 No. 142, File No. LR 48323
FM approval
Factory Mutual Approval Standard Class Number 3611, Class I, Division 2,
Groups A, B, C, D.
!
Warning
Persons and equipment may come to harm.
In hazardous areas persons and equipment may come to harm if you disconnect connectors during routine operation.
De-energize the distributed I/O system in hazardous areas before disconnecting connectors.
Distributed I/O System DP/ASi Link
EWA 4NEB 710 6055-02b
A-3
Technical Data
A.2
General Technical Data
Technical data
The following table presents the technical data of the distributed I/O system
DP/ASi link.
Technical Data
Power Supply
Baud rates on PROFIBUS- 9.6; 19.2; 93.75; 187.5;
DP
500; 3000; 6000 and
12000 kBd
Power down backup
Typically 20 ms
Insulation rating
In acc. with VDE 0160
Nominal insulation voltage 60 V AC
(L+ to PI)
Test voltage
Power loss
3.0 W
Weight
800 g
Dimensions (B
H
D)
205
80
57
Green RUN LED
Red BF LED
Red ASi POWER
Yellow CONFIG
ERROR LED
Green AUTOPROG
AV LED
Yellow CONFIG
MODE LED
A-4
35 V
Protected against polarity
Yes
100 mA
70 mA
Temperature
FAIL LED
ASi slaves
Value when tt0.5 s
Climatic Environmental Conditions to IEC 1131-2
Monitoring
PROFIBUS-DP
ASi
incl. ripple of max. 3.6 V
500 V
Diagnostic Functions
Voltage Monitoring
20 to 30 V
DP part (24 V DC)
ASi part
Optical isolation to
500 V
24 V DC
Permissible range
Input power
500 V AC
PROFIBUS-DP
ASi
Nennwert (L+)
5 red ASi-SLAVE
FAIL LEDs
Operation
0 to + 60 °C
with MLFB 6ES7
156-0AA01-0XA0 or
later
Storage/shipping
–25 to + 60 °C
– 40 to + 70 °C
Temperature variation
Operation
Storage/shipping
Max. 10 °C/h
Relative humidity
10 to 100 %
Max. 20 °C/h
Atmospheric pressure
Operation
Storage/shipping
860 to 1060 hPa
IP protection type to
IEC 529
IP 66/IP 67
Operating conditions with
chemically active pollut
ants to IEC 654-4
Class 2
660 to 1060 hPa
Distributed I/O System DP/ASi Link
EWA 4NEB 710 6055-02b
Technical Data
Mechanical Environmental Conditions
Operating conditions to IEC 654-3
10 Hzvf < 57 Hz
57 Hzvf < 150 Hz
Oscillation type
Const. amplitude 0.35 mm
Oscillation period
10 frequency sweeps per
axis in all of the three per
pendicular axes
Operating conditions
V.T.1 (corresponds to
100 % frequency)
Const. acceleration 5 g
Frequency sweeps with
variation rate of
1 octave/min.
Electromagnetic Compatibility (EMC)/ Noise Immunity
Discharge of static electricity to IEC 801-2
Discharge of static
electricity
8 kV air discharge
Discharge to all parts ac
cessible to the operator in
normal operation.
Test voltage
4 kV relay discharge
(relative humidity 30 to
95 %)
Electromagnetic fields to IEC 801-3
Field strength
10 V/m
Schock tested to IEC 68-2-27
Rapid transient (burst) voltages to IEC 801-4
Type of shock
Force of shock
Half sine
DC power supply
Communication inter
Direction of shock
6 shocks in all of the three
perpendicular axes
30 g peak value,
18 ms duration
Direction of shock
Insulation rating
25 g peak value;
6 ms duration
Between electrically
Drop and topple to IEC 68-2-31
Tested with
Safety Aspects
Half sine
1000 shocks in all of the
three perpendicular axes
Height of fall of 100 mm
independent circuits
and circuits connected
to a central grounding
point
Between all circuits
and central grounding
point
Radio interference
Distributed I/O System DP/ASi Link
EWA 4NEB 710 6055-02b
2 kV
face
Repetitive shock tested to IEC 68-2-29
Type of shock
Force of shock
2 kV
To DIN VDE 0160
(05.1988)
To DIN VDE 0160
(05.1988)
To EN 50081-2: 1994, use
in industrial environment
A-5
Technical Data
Dimension drawing
Fig. A-1 shows you the dimension drawing for the DP/ASi link.
18
9
26
52
+
6ES7 156--0AA01-0XA0
16 = ASi-SLAVE FAIL
21.5
SINEC
L2-DP
+ PS
1
RUN
+
2
+
4
BF
+
8
+
CONFIG MODE
AUTOPROG AV
CONFIG ERROR
ASi POWER FAIL
175
Approx. 205
163
DP / ASi LINK
1 2 3 4 5 6
–
1
ASi
3
80
27
M23x1
57
Figure A-1 DP/ASi link; dimension drawing
A-6
Distributed I/O System DP/ASi Link
EWA 4NEB 710 6055-02b
B
I/O Code
In this chapter
In this chapter you will find the I/O code of the ASi slaves as defined in the
ASi standard.
I/O code
The I/O code characterizes every ASi slave in respect of its inputs and outputs. Table B-1 shows the interrelationship between the assignment of the
four connections of an ASi slave and the I/O code.
Table B-1
I/O code of ASi slaves
D0
D1
D2
D3
I/O Code
Decimal
Hex.
ON
ON
ON
ON
0
0
ON
ON
ON
OFF
1
1
ON
ON
ON
ON/OFF
2
2
ON
ON
OFF
OFF
3
3
ON
ON
ON/OFF
ON/OFF
4
4
ON
OFF
OFF
OFF
5
5
ON
ON/OFF
ON/OFF
ON/OFF
6
6
ON/OFF
ON/OFF
ON/OFF
ON/OFF
7
7
OFF
OFF
OFF
OFF
8
8
OFF
OFF
OFF
ON
9
9
OFF
OFF
OFF
ON/OFF
10
A
OFF
OFF
ON
ON
11
B
OFF
OFF
ON/OFF
ON/OFF
12
C
OFF
ON
ON
ON
13
D
OFF
ON/OFF
ON/OFF
ON/OFF
14
E
TRI
TRI
TRI
TRI
15
F
Distributed I/O System DP/ASi Link
EWA 4NEB 710 6055-02b
B-1
I/O Code
B-2
Distributed I/O System DP/ASi Link
EWA 4NEB 710 6055-02b
C
Parameterization Message
Tip
You require this chapter only if you are not using an application such as
COM ET 200 Windows (version 2.0 or later).
Introduction
The DP/ASi link requires the parameterization message during start-up. This
appendix describes the structure of the parameterization message for the DP/
ASi link when used as a DP standard slave.
When you have studied this chapter, you can manually create the parameterization message on your own.
In this chapter
In Section
Distributed I/O System DP/ASi Link
EWA 4NEB 710 6055-02b
You Will Find
on Page
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
C-1
Parameterization Message
C.1
Structure of the Parameterization Message in Configuring with Address Optimization
Structure
The parameterization message contains 140 bytes of data, bytes 0 to 139.
These 140 bytes comprise:
7 bytes in accordance with the DP standard, bytes 0 to 6, refer to
Table C-1
8 bytes for initialization of the DP/ASi link, bytes 7 to 14, refer to
Table C-4
a control byte, byte 15, refer to Table C-5
4 bytes in each case for a possible ASi slave, bytes 16 to 139, refer to
Table C-6
DP standard part
You will find the structure of the seven bytes conforming to the DP standard
in Table C-1.
Table C-1
Byte(s)
Structure of the DP standard part in parameterization message
Value
0
1
2
Meaning
Station status, refer to Table C-2
0 to 255
Watchdog factor
0 to 255
These two bytes represent two factors for response monitoring. If the DP master fails, the DP slave is reset at the
end of the response time (TWD). All the outputs are set to
b the
h DP/ASi link.
li k
0 by
You calculate the response time from the formula:
TWD+watchdog time base1 factor 1(byte 1) factor 2(byte 2)
3
0 to 255
Response delay
The response delay specifies the length of time the DP
slave has to wait until it can send its response message to
the DP master. The response time depends on the baud
rate.
4, 5
C-2
32795 =
801BH
Manufacturer ID
The manufacturer ID is a product-specific ID. The DP/
ASi link accepts in the parameterization message only
that manufacturer ID which corresponds to its own. If the
ID in the parameterization message is not identical with
that of the DP/ASi link, an error message is issued.
Distributed I/O System DP/ASi Link
EWA 4NEB 710 6055-02b
Parameterization Message
Table C-1
Byte(s)
Structure of the DP standard part in parameterization message, continued
Value
6
Meaning
Group ID
You can place several DP slaves in one group with the
group ID.
1
Station status
Refer to Table C-3 for the watchdog time base
The station status defines the operating behavior of the DP/ASi link as a DP
slave. Its behavior towards other DP masters is determined; other aspects to
be determined are whether the SYNC and FREEZE modes and the watchdog
are being used.
Table C-2
Structure of station status in parameterization message
Bit(s)
Value
Meaning
0 to 2
000
Reserved
3
1
The watchdog for the PROFIBUS-DP is enabled in the
DP/ASi link.
4
1
The DP/ASi link can be operated in FREEZE mode.
5
1
The DP/ASi link can be operated in SYNC mode.
6, 7
00
The slave response time (TSDR) is modified. All other
parameters remain as they are.
01
The DP/ASi link is enabled for other PROFIBUS masters.
10
The DP/ASi link is disabled for other PROFIBUS masters. All parameters are applied; (exception:
TSDR+0).
11
The DP/ASi link is enabled for other PROFIBUS masters.
Distributed I/O System DP/ASi Link
EWA 4NEB 710 6055-02b
C-3
Parameterization Message
Initialization bytes
Bytes 7 to 14 are referred to as the initialization bytes.
You can modify byte 7 (refer to Table C-3), the first byte of the eight initialization bytes, as follows:
Table C-3
Structure of byte 7 for initialization
Bit(s)
Meaning
0
Value
Start bit monitoring
0
Monitoring is enabled
1
Monitoring is disabled
0
Monitoring is enabled
1
Monitoring is disabled
0
Time base = 10 ms
1
Time base = 1 ms1
3 to 5
0
In all cases
6
0
In all cases
7
0
In all cases
1
Stop bit monitoring
2
1
Watchdog time base
The time base = 1 ms may be used only for transmission rates u1.5 MBd.
The remaining bytes (byte 8 to byte 14) are pre-defined and cannot be modified. The values of these bytes are defined in Table C-4. If you modify these
values, the DP/ASi link cannot be operated.
Table C-4
Control byte
Byte
8
9
10
11
12
13
14
Value
00H
00H
82H
51H
04H
8AH
7DH
The control byte (byte 15) contains the other interface parameters. The control byte has the value shown in Table C-5.
Table C-5
Value
Actual equal to
setpoint
configuration
C-4
Default values of bytes 8 to 14 for initialization
Value of control byte (byte 15)
Meaning
00H
Actual is equal to setpoint configuration
01H
Actual is less than or equal to setpoint configuration
”Actual is equal to setpoint configuration” means that the DP/ASi link starts
up only when the actual configuration is the same as the setpoint configuration. If there are any differences between the actual and setpoint configurations, the DP/ASi link requests a new parameterization message.
Distributed I/O System DP/ASi Link
EWA 4NEB 710 6055-02b
Parameterization Message
Actual less than or
equal to setpoint
configuration
”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 detects any differences, it reacts in two different ways:
If the DP/ASi link detects unconfigured ASi slaves, it behaves in the same
way as for ”actual is equal to setpoint configuration”.
If ASi slaves are missing from the actual configuration compared to the
setpoint configuration – without unconfigured ASi slaves being present –
the DP/ASi link reports a configuration error. Data exchange is initiated,
however.
If no difference is detected between actual and setpoint configurations, the
DP/ASi link starts up normally.
Parameterization
data for ASi slaves
Bytes 16 to 139 contain the parameterization data for the ASi slaves. The
method of determining the parameterization data is described in section C.2.
Precisely four bytes are assigned to every ASi slave.
Distributed I/O System DP/ASi Link
EWA 4NEB 710 6055-02b
C-5
Parameterization Message
C.2
Parameterization Data for ASi Slaves
Structure
Table C-6
You have to define four bytes for every ASi slave when you assign parameters. These four bytes contain all the data required for an ASi slave and data
exchange with it. You will find the structure of these four bytes for every ASi
slave in Table C-6.
Parameterization data for an ASi slave
Byte A
Bits 7 to 4
Bits 3 to 0
Byte B
Bits 7 to 4
Configura- Parameters ID code of
tion status of ASi
ASi slave
slave
1
2
Bits 3 to 0
I/O code
of ASi
slave
Byte C1
Byte D 2
Bits 7 to 0
Bits 7 to 0
Codification of input
area
Codification of output
area
If you do not assign any inputs, you must assign FFH to byte C.
FIf you do not assign any outputs, you must assign FFH to byte D.
Byte A – bits 7 to 4
Configuration
status
With the configuration status, you specify whether the ASi slave is contained
in the ASi. The following two values are possible:
8H for configured ASi slaves (bits 7 to 4)
0H for unconfigured ASi slaves (bits 7 to 4)
Byte A – bits 3 to 0
Parameters of
ASi slave
Refer to the data sheet of the ASi slaves for the range of values of the parameters of the ASi slaves and their significance. The default parameter setting is
0 and applies to all ASi slaves.
Byte B – bits 7 to 4
ID code
The ID code specifies the manufacturer of the ASi slave modules. The standard ID code is 0 and can be used by all manufacturers. If the ASi slave expects a different ID code, you can take it from the data sheet for the ASi
slave.
Byte B – bits 3 to 0
I/O code
The I/O code characterizes the ASi slave with reference to its inputs and outputs. You will find the I/O code in the data sheet for the ASi slave. If you
know the input and output assignment, you can read the I/O code from
Table B-1 in Appendix B.
Bytes C and D –
input and output
areas
After performing optimization of the address assignment (refer to Appendix C.3), you can take both the byte number and the number for every ASi
slave from the address space template.
The position of the first input or output bit in the address space template (refer to Fig. C-1) characterizes every ASi slave. The specifications are important for the address assignment.
C-6
Distributed I/O System DP/ASi Link
EWA 4NEB 710 6055-02b
Parameterization Message
Address
assignment
In Table C-7 you will find the assignment of the ASi addresses to the byte
numbers within the parameterization message.
Table C-7
Example
Assignment of parameterization data of ASi slaves to byte numbers of
parameterization message
Parameterization Data for ASi Slave with
ASi Address
... Assigned to Bytes
1
16 to 19
2
20 to 23
3
24 to 27
4
28 to 31
5
32 to 35
31
136 to 139
The way in which you determine the value of an input or output byte is
shown in the table below. ASi slave No. 4, as defined in Fig. C-1, is used in
the example.
Step
Action
1
Explanation
Byte number:
1
Bit number: 0
2
0
0
0
0
Bit No. 4
1
0
0
2
0
0
0
3
0
Bit No.
0
0
0
7
1
0
3
2
0
5
0
0
0
1
0H
6
0
0
Distributed I/O System DP/ASi Link
EWA 4NEB 710 6055-02b
0
0
8H
08H
Convert the byte number into a 5-digit binary
number and the bit number into a 3-digit
binary number. You will obtain the byte number 00001B and the bit number 000B.
Merge the two binary numbers. The bit number is sorted into the position of bits 0 to 2 and
the byte number into the position of bits 3 to 7.
4
0
Take the byte number (1) and the bit number (0) from the address space template (refer
to Fig. C-1).
0
Divide the eight bits you obtain at the center
into two groups of four bits.
Convert both of the two groups into a hexadecimal number.
Unite the two hexadecimal numbers.
C-7
Parameterization Message
C.3
Optimizing Address Assignment
Purpose
For you to be able to address the ASi slaves, you have to allocate the address
assignment within the SIMATIC to every ASi slave.
To make proper use of the limited address space on the SIMATIC, you must
optimize the address assignment of the different slaves.
Method
Optimize the input address area first and then the output address area.
Optimization
It has proved sensible to create an address space template for each of the in
puts and each of the outputs. Up to 16 bytes of address space can be assigned
to every address space template. Fig. C-1 shows an example of an address
space template.
Rule
Please observe the following rules, which have proved to be sensible, when
you are tackling address assignment:
Sort the ASi slaves used according to their address requirement.
Start in byte 0 at bit 0 with an ASi slave having 4 inputs or outputs (data
bits).
Insert all the ASi slaves with 4 data bits first. Then insert all the ASi
slaves with 3 data bits, then 2 data bits and, finally, all ASi slaves having
a single data bit.
In assigning addresses, you must not go beyond byte limits with an ASi
slave. Note that the data must be byte-consistent.
Always try to fill a data byte completely.
C-8
Distributed I/O System DP/ASi Link
EWA 4NEB 710 6055-02b
Parameterization Message
Example
Fig. C-1 illustrates the process for optimizing address assignment using the
address space template.
The four AS slaves used have the following input/output assignment:
ASi Address
Inputs
Outputs
1
4
0
4
2
2
5
3
1
7
0
4
Outputs
Inputs
ASi slave 1
4
3
ASi slave 4
ASi slave 5
ASi slave 7
3
2
1
None
2
1
4
2
1
4
None
4
3
3
2
1
Sl. 4
Byte 1
2
Byte 0
Bit:
7
1
Slave 1
Slave 5
S5 Sl. 4
3
2
1
4
3
2
1
6
5
4
3
2
1
0
Byte 0
Bit:
7
Slave 7
4
4
3
4
3
2
1
6
5
4
3
2
1
0
Figure C-1 Sorting ASi slaves into address space template
Distributed I/O System DP/ASi Link
EWA 4NEB 710 6055-02b
C-9
Parameterization Message
C.4
Structure of the Parameterization Message in Simple Configuration
Parameterization
message structure
The parameterization message has a fixed length of exactly 32 bytes.
DP standard part
Bytes 0 to 6 contain the parameters of the DP standard part.
Table C-8
Initialization bytes
Assigning the DP standard part
Byte
0
1
Value
Refer to Table C-1
2
3
4
5
6
Bytes 7 to 14 are referred to as the initialization bytes.
The structure of the first initialization byte, byte 7, is described in Table C-3.
Bytes 8 to 14 contain fixed default values for initialization of the DP/ASi
link, which must not be modified.
Table C-9
Control byte
Default values of bytes 8 to 14 for initialization
Byte
8
9
10
11
12
13
14
Value
00H
00H
16H
51H
04H
8AH
11H
Byte 15 defines the response when the actual configuration read by the DP/
ASi link does not agree with the setpoint configuration.
Table C-10
C-10
Definition of response when setpoint and actual configurations differ
Byte
15
Value
Refer to Table C-5
Distributed I/O System DP/ASi Link
EWA 4NEB 710 6055-02b
Parameterization Message
Setpoint
configuration
Bytes 16 to 31 reflect the setpoint configuration of the DP/ASi link. An ASi
slave is permanently assigned to every nibble. If an ASi slave has been configured, its hexadecimal I/O code has to be entered at this stage; unconfigured
ASi slaves have to be identified by FH.
Table C-11 I/O code of configured ASi slaves
Byte
Bits 7 to 4
Bits 3 to 0
16
Not applicable
I/O code for slave 1
17
I/O code for slave 2
I/O code for slave 3
18
I/O code for slave 4
I/O code for slave 5
19
I/O code for slave 6
I/O code for slave 7
20
I/O code for slave 8
I/O code for slave 9
21
I/O code for slave 10
I/O code for slave 11
22
I/O code for slave 12
I/O code for slave 13
23
I/O code for slave 14
I/O code for slave 15
24
I/O code for slave 16
I/O code for slave 17
25
I/O code for slave 18
I/O code for slave 19
26
I/O code for slave 20
I/O code for slave 21
27
I/O code for slave 22
I/O code for slave 23
28
I/O code for slave 24
I/O code for slave 25
29
I/O code for slave 26
I/O code for slave 27
30
I/O code for slave 28
I/O code for slave 29
31
I/O code for slave 30
I/O code for slave 31
Distributed I/O System DP/ASi Link
EWA 4NEB 710 6055-02b
C-11
Parameterization Message
C-12
Distributed I/O System DP/ASi Link
EWA 4NEB 710 6055-02b
D
Configuration Message
Tip
You require this section only if you are not using an application such as COM
ET 200 Windows.
Introduction
The DP/ASi link requires the configuration message during start-up. This
chapter describes the structure of the configuration message for the DP/ASi
link used as a DP standard slave.
Meaning
The configuration message defines the length of input and output data. They
are compared with the data contained in the parameterization message.
In this appendix
In Section
Distributed I/O System DP/ASi Link
EWA 4NEB 710 6055-02b
You Will Find
on Page
D.1
Structure of the Configuration Message with a Default
Start-Up
D-2
D.2
Structure of the Configuration Message in Configuration
with Address Optimization
D-3
D.3
Structure of the Configuration Message in Simple Configuration
D-7
D-1
Configuration Message
D.1
Structure of the Configuration Message with a Default Start-Up
Structure
The configuration message consists of precisely 20 bytes. With a default
start-up, it must have the structure shown in Table 8.
Table D-1
D-2
Configuration message structure for a default start-up
Byte
0
1
2
3
4
5
6
7
8
9
Value
04H
00H
00H
ADH
C0H
04H
00H
00H
BBH
40H
Byte
10
11
12
13
14
15
16
17
18
19
Value
04H
00H
00H
8FH
C0H
C2H
0FH
0FH
3CH
40H
Distributed I/O System DP/ASi Link
EWA 4NEB 710 6055-02b
Configuration Message
D.2
Structure of the Configuration Message in Configuration with Address Optimization
Structure
The configuration message contains 20 bytes. The first 15 bytes are permanently assigned, as shown in Table D-2. All values are hexadecimal numbers.
Table D-2
Variable bytes
Default assignment of bytes 0 to 14 of the configuration message,
shown in hexadecimal numbers
Byte
0
1
2
3
4
5
6
7
8
9
Value
04
00
00
AD
C0
04
00
00
BB
40
Byte
10
11
12
13
14
15
16
17
18
19
Value
04
00
00
8F
C0
3C
40
variable
Byte 15 to byte 17 are comprised as follows:
Byte 15:
Identification byte with specific identification format (refer to Table D-3)
Byte 16 (possibly byte 17)
1 or 2 length bytes for input and output data
Byte 18 and byte 19 (possibly byte 17)
2 or 3 bytes of manufacturer-specific data; bytes 18 and 19 are permanently assigned with values from Table D-2.
Distributed I/O System DP/ASi Link
EWA 4NEB 710 6055-02b
D-3
Configuration Message
Identification byte
With the identification byte, you define the structure of the configuration
message. You will find a description of the value of the identification byte in
Table D-3.
Table D-3
Value of identification byte in configuration message
Value
43H
Meaning
Input data only
in byte 16, the length byte stands for the input data
there follow three bytes of manufacturer-specific data: 00H
3CH 40H, (bytes 17 to 19).
83H
Output data only
in byte 16, the length byte stands for the output data
there follow three bytes of manufacturer-specific data: 00H
3CH 40H, (bytes 17 to 19).
C2H
Input and output data
in byte 16, the length byte stands for output data
in byte 17, the length byte stands for input data
there follow two bytes of manufacturer-specific data: 3CH
40H, (bytes 18 and 19).
I/O length byte
If you use inputs and outputs on the ASi, you require a separate length byte
for both input data and output data. If you use only inputs or only outputs,
you require only an input length byte or only an output length byte.
You will find the value of the I/O length byte in Table D-4.
Table D-4
Value of the I/O length byte in configuration message
Value
00H
L
0FH
1
Manufacturerspecific data
D-4
Meaning
1 byte of data with byte consistency
L
1
16 bytes of data with byte consistency
If you specify an input length byte or an output length byte, you define automatically
in doing so that at least one data byte is present. You can therefore set bytes in the range
from 1 to 16 for inputs and outputs.
The manufacturer-specific data are intended for later use of the DP/ASi link
with extended functionality within SIMATIC S7.
Distributed I/O System DP/ASi Link
EWA 4NEB 710 6055-02b
Configuration Message
Example 1
The following example presents the structure of the five bytes of data (bytes
15 to 19) for a DP/ASi link with inputs and outputs.
Byte
15
Value
C2H
Meaning
Specific identification format:
there follows one length byte for output data
there follows one length byte for input data
there follow two bytes of manufacturer-specific data
16
00H
Length byte for output data:
data format: byte
byte consistency
output length: 1 byte
17
01H
Length byte for input data:
data format: byte
byte consistency
input length: 2 bytes
Example 2
18
3CH
19
40H
Manufacturer-specific data
The following example shows the structure of the five bytes of data (bytes 15
to 19) for a DP/ASi link having only inputs.
Byte
15
Value
43H
Meaning
Specific identification format:
there follows one length byte for input data
no output data are present
there follow three bytes of manufacturer-specific identification
16
02H
Length byte for input data:
data format: byte
byte consistency
input length: 3 bytes
17
00H
18
3CH
19
40H
Distributed I/O System DP/ASi Link
EWA 4NEB 710 6055-02b
Manufacturer-specific data
D-5
Configuration Message
Example 3
The following example shows the structure of the five bytes of data (bytes 15
to 19) for a DP/ASi link having only outputs.
Byte
15
Value
83H
Meaning
Specific identification format:
there follows a length byte for output data
no input data are present
there follow three bytes of manufacturer-specific identification
16
04H
Length byte for output data:
dats format: byte
byte consistency
output length: 5 bytes
D-6
17
00H
18
3CH
19
40H
Manufacturer-specific data
Distributed I/O System DP/ASi Link
EWA 4NEB 710 6055-02b
Configuration Message
D.3
Structure of the Configuration Message in Simple Configuration
Structure
The configuration message consists of 20 bytes and must have the structure
shown in Table D-5. The type and length of the I/O area used are encoded in
bytes 15 to 17.
Table D-5
Variable bytes
Configuration message for masters with reduced parameter assignment
Byte
0
1
2
3
4
5
6
7
8
9
Value
04H
00H
00H
ADH
C0H
04H
00H
00H
BBH
40H
Byte
10
11
12
13
14
15
16
17
18
19
Value
04H
00H
00H
8FH
C0H
3CH
40H
variable
In byte 15, specify an ID for the type of I/O being used (inputs only, outputs
only or inputs and outputs connected).
In bytes 16 and 17, specify the length ID for the input and output areas being
used. The length IDs are determined by the slaves having the highest ASi
addresses. Make sure that precisely one nibble is assigned to every ASi slave
(refer to summary in Table D-6).
Table D-6
IDs for the variable part of the configuration message
Connected to the DP/ASi
Link Are ...
The Configuration Message Must Contain:
Inputs and outputs
in byte 15, the ID C2H
in byte 16, the length ID for the outputs
in byte 17, the length ID for the inputs
Inputs only
in byte 15, the ID 43H
in byte 16, the length ID for the inputs
in byte 17, the ID 00H
Outputs only
in byte 15, the ID 83H
in byte 16, the length ID for the outputs
in byte 17, the ID 00H
The length ID is calculated from the following formula:
Length ID = Length of I/O area being used in byte – 1
Distributed I/O System DP/ASi Link
EWA 4NEB 710 6055-02b
D-7
Configuration Message
Example of
determining length
IDs
You have an DP/ASi link on which the ASi slave with the highest address to
which outputs are connected is slave 7; the ASi slave with the highest address
to which inputs are connected is slave 12.
Accordingly, the output area has a length of 4 bytes, for slave 7 is located in
the fourth byte. The length ID for the outputs is 03H.
The input area has a length of 6 bytes, for slave 12 is located in the sixth
byte. The length ID for the inputs is 05H.
D-8
Distributed I/O System DP/ASi Link
EWA 4NEB 710 6055-02b
Glossary
A
Active nodes
Active nodes may send data to other nodes, if they are token holding nodes,
and request data from other nodes (synonymous with master).
Actual
configuration
By actual configuration we mean the true configuration of the ASi as detected by the DP/ASi link.
ASi
ActuatorSensor Interface. The Actuator Sensor Interface is a networking
system for the lowest range of automation levels It is suitable for networking
binary actuators and sensors.
ASi address
The ASi address uniquely identifies every ASi slave within the ASi. The ASi
master addresses an ASi slave by means of its ASi address.
ASi address 0
ASi address 0 has a special meaning in the ASi:
It is the default address with which every ASi slave is supplied ex works.
It is required to assign a new address to an ASi slave.
ASi cable
The ASi cable is a specially shaped two-wire cable incorporating reverse polarity protection and connecting ³ ASi slaves and the ³ ASi master for
transmitting information and auxiliary power.
ASi configuration
data
ASi configuration data contain the ³ I/O code and the ³ ID code of an ASi
slave. They characterize the characteristics of the ASi slave.
ASi master
³ Master. The ASi master is the control and monitoring unit that monitors
and coordinates data transmission from and to the ASi slaves.
ASi slave
³ Slave. ASi slaves are the interfaces between the higher-level ASi master
and the connected actuators and sensors. ASi slaves transmit data to the ASi
master only upon the latter’s specific request.
Distributed I/O System DP/ASi Link
EWA 4NEB 710 6055-02b
Glossary-1
Glossary
Assign parameters
To assign parameters is to pass slave parameters from the master to the slave.
B
Baud rate
Rate at which data are transmitted; specifies the number of bits transmitted
per second (baud rate = bit rate).
Bit time
The bit time (TBit) is the time required to transmit one bit. It is the reciprocal
value of the baud rate: TBit = 1/baud rate
C
Configure
Configure means performing the different settings for individual modules in a
Distributed I/O System.
Consistent data
Data which have related contents and must not be separated are known as
consistent data.
The data of an ASi slave must always be treated consistently, the data must
not be corrupted by being read out at different times.
Control command
A DP master can send commands simultaneously to a DP slave, a group of
DP slaves or to all DP slaves to synchronize the DP slave stations.
By means of the ³ FREEZE and ³ SYNC control commands, it is possible
to synchronize DP slave stations by event driving.
D
Diagnostics
Diagnostics comprises detection, isolation, classification, display and the
ongoing evaluation of errors, malfunctions and messages.
Diagnostics features monitoring functions which run automatically during
system operation. In this way higher availability of the system is achieved as
a result of shorter commissioning times and down times.
Within the distributed I/O, there are various diagnostic possibilities – ranging
from the overview as to which DP Slave has reported a diagnosis to the monitoring of individual inputs and outputs.
Glossary-2
Distributed I/O System DP/ASi Link
EWA 4NEB 710 6055-02b
Glossary
Distributed I/O
devices
Distributed I/O devices are I/O units that are not used in the base unit but are
set up on a distributed basis; for example:
ET 200 family
S5-95U with PROFIBUS-DP interface
DP/ASi link
other DP slaves from Siemens or external devices.
Distributed I/O devices are connected to the DP master over the PROFIBUSDP bus.
DP
DP stands for ”distributed I/O”.
DP master
The DP master is an ³ active node which communicates with the DP slave
stations according to a defined algorithm and makes data available to the
user. Its behavior conforms to standard EN 50170 Volume 2, PROFIBUS.
DP slave
³ DP standard slave
DP standard
Abbreviation for standard EN 50170 Volume 2, PROFIBUS.
DP standard slave
A DP standard slave is a ³ passive node which behaves in accordance with
standard EN 50170 Volume 2, PROFIBUS.
F
FREEZE
FREEZE is a control command of the DP master to a group of DP slaves.
Upon receiving the FREEZE control command, the DP slave freezes the current state of the inputs and transmits the frozen data periodically to the DP
master.
After every FREEZE control command thereafter, the DP slave freezes the
current state of the inputs again.
The input data are not sent periodically to the DP master by the DP slave
again until the DP master sends an UNFREEZE control command.
I
I/O code
The I/O code specifies the assignment of inputs and outputs to the data bits.
The I/O code defines sixteen different input/output combinations.
Distributed I/O System DP/ASi Link
EWA 4NEB 710 6055-02b
Glossary-3
Glossary
ID code
The ID code is an additional identification, its use being optional for each
ASi slave. The ID code is specified for every ASi slave. The default value of
the ID code is 0.
IM 308-C
The IM 308-C is a DP master for the Distributed I/O System.
IP 66
Degree of protection in accordance with DIN 40050: complete protection
against contact, protection against the ingress of dust and protection against
the detrimental ingress of heavy seas or high-pressure hose-water.
IP 67
Degree of protection in accordance with DIN 40050: complete protection
against contact, protection against the ingress of dust and protection against
the detrimental ingress of water of a certain pressure upon submersion.
M
Master
Masters, if they are token holding nodes, may send data to other nodes and
request data from other nodes.
Examples of DP masters are IM 308-C or the programmer. One ASi master is
the DP/ASi link, for example.
Master diagnosis
The master diagnosis shows the diagnostic data of the DP master – for example, what slave has a diagnostic message.
Master/slave
method
The master/slave method is a bus access procedure in which only one node is
³ active at any time and all the others are ³ passive.
P
Passive nodes
Passive nodes may exchange data with an active node only when requested to
do so by the latter (synonymous with slave).
PROFIBUS
Process Field Bus, German process and field bus standard defined in the
PROFIBUS standard (EN 50170 Volume 2, PROFIBUS).
It specifies functional, electrical and mechanical characteristics for a bit-serial field bus system.
Glossary-4
Distributed I/O System DP/ASi Link
EWA 4NEB 710 6055-02b
Glossary
PROFIBUS-DP
Draft PROFIBUS-DP standard (EN 50170 Volume 2, PROFIBUS), on which
the Distributed I/O System is based.
The principal function of PROFIBUS-DP is high-speed data exchange between the central DP master and the I/O devices.
PROFIBUS-DP is a bus system networking PROFIBUS-compatible programmable logic controllers and field devices at field and cell levels. PROFIBUSDP is available with DP (+Distributed I/O), FMS (+Field Bus Message
Specification) or TF (+Technological Functions) protocols.
R
Response
monitoring time
You set the length of the response monitoring time with the configuration
software of the DP master.
If a DP slave is not addressed within the response monitoring time, it enters
the safe state, i.e. all outputs are set to ”0”.
S
Setpoint
configuration
By setpoint configuration we mean the configured set-up of the ASi as stored
in the DP master.
Slave
A slave may exchange data with a ³ master only when requested to do so by
the latter.
Station
A station is a device which can send, receive or amplify data over the bus –
for example, a master, slave, repeater or coupler.
Station
diagnostics
Station diagnostics is the highest level of slave-specific diagnostics. It refers
to the whole slave.
Station number
Every PROFIBUS-DP node must be given a station number. The programmer
and the ET 200 Handheld are addressed with the station number ”0”; DP
masters and DP slaves have a station number in the range from 1 to 125.
Distributed I/O System DP/ASi Link
EWA 4NEB 710 6055-02b
Glossary-5
Glossary
SYNC
SYNC is a ³ control command of the DP master to a group of DP slaves.
With the SYNC control command, the DP master causes the DP slave to
freeze the outputs at their instantaneous values. In the messages that follow,
the output data from the DP slave are stored but the states across the outputs
remain unchanged.
After every new SYNC control command, the DP slave sets the outputs with
the data which it has stored as output data.
The outputs are not periodically updated again until the DP master sends the
UNSYNC control command.
T
Type file
A file which the COM ET 200 Windows configuration software requires for
configuring a DP slave. The type file defines slave-specific characteristics
such as the number of inputs and outputs, number of diagnostic bytes,
FREEZE and SYNC compatibility, etc.
For every Siemens station type there is a type file which is compiled by Siemens and is a component part of COM ET 200 Windows.
U
UNFREEZE
³ FREEZE
UNSYNC
³ SYNC
Glossary-6
Distributed I/O System DP/ASi Link
EWA 4NEB 710 6055-02b
Index
A
Active nodes, Glossary-1
Actual configuration, Glossary-1
Actual is equal to setpoint configuration, 5-4
Actual is less than or equal to setpoint configuration, 5-4
Actuator sensor interface, 2-1
Adapter cable, 4-22
connections, 4-22
Additional components, 4-15
Address
for queries, v
for training courses, v
Address assignment, C-7
example, C-7, C-9
optimizing, C-8
rule, C-8
Applicability of manual, iii
Approvals, A-2
ASi, Glossary-1
address, Glossary-1
basics, 2-1
cable, 2-4, Glossary-1
configuration data, Glossary-1
connecting elements, 2-6
definition, 2-1
diagnostics with LED display, 8-4
distribution unit, 2-4
elements, 2-3
example installation, 2-2
interruption, 2-7
master, Glossary-1
monitor, 7-4
parameterization data, C-6
power failure, 7-4
power supply unit, 2-4
short cable, 2-7
slave, 2-3, Glossary-1
slave failure, 7-5
structure, 2-2
terminal connection with pinout, 4-8
zero address, Glossary-1
Distributed I/O System DP/ASi Link
EWA 4NEB 710 6055-02b
ASi POWER FAIL, 8-4
ASi slave
diagnosis, 8-20, 8-21
diagnostics, 8-19
failure, 7-5
failure indication, 8-5
parameters, C-6
ASi SLAVE FAIL, 8-5
Assign parameters, 5-4, Glossary-2
Automatic programming, 7-6
Automatic start-up, 4-10
AUTOPROG AV, 7-6, 8-4
B
Basics, ASi, 2-1
Baud rate, Glossary-2
BF, 8-3
Bit time, Glossary-2
Bus cable, maximum length with PS, 3-6
Bus cables, 4-19
C
Cables, 4-19
CE, mark, A-2
CE mark, A-2
Circular connectors, connection rules, 4-23
Commissioning, 4-10
Components, additional, 4-15
CONFIG ERROR, 8-4
Index-1
Index
Configuration, 3-1
data, Glossary-1
options, 3-1
summary, 3-2
with programmer connector, 3-9
with several power supply connectors, 3-6
with T connector and with power supply
connector, 3-4
without power supply connector, 3-7
without T connector and with power supply
connector, 3-3
CONFIG MODE, 7-1, 8-4
Configuration message
example, D-5
I/O length byte, D-4
identification byte, D-4
manufacturer-specific ID, D-4
structure, D-3
variable bytes, D-3
Configuration Message , D-1
Configuration message structure in full configuration, D-2, D-3
Configuration message structure in limited configuration, D-7
Configuration status, C-6
Configure, 5-1, 5-3, Glossary-2
versions, 5-1
with COM ET 200 Windows, 5-3
Connections
adapter cable, 4-22
power supply connector, 4-17
programmer connector, 4-18
Consistent data, Glossary-2
Control command, Glossary-2
CSA, A-3
CSA approval, A-3
D
Definition
ASi, 2-1
DP/ASi link, 1-2
Diagnosis
ASi slave, 8-20, 8-21
first station, 8-14, 8-16
module, 8-14, 8-16
second station, 8-20
structure, 8-10
Diagnostic data
part 1, 8-15, 8-17
part 2, 8-18
Index-2
Diagnostic message, 8-10
DP standard part, 8-12
structure, 8-10
Diagnostics, 8-1, Glossary-2
ASi slave, 8-19
by means of LED, 8-2
by means of user program, 8-6
dynamic, 8-8
master, 8-7
message, 8-10
options, 8-1
second station diagnosis, 8-18
slave, 8-7
static, 8-8
status, 8-8
Dimension drawing, A-6
DIP switch block, 4-12
Display
elements, 8-2
LED, 8-2
mode, 8-3
Distributed I/O, Glossary-3
DP master, Glossary-3
DP slave, Glossary-3
DP standard, Glossary-3
DP standard slave, Glossary-3
DP master, 5-6
Requirement, 5-7
DP, see Distributed I/O, Glossary-3
DP/ASi link
characteristics, 1-3
commissioning, 4-10
configuring, 5-1
connecting, 4-8
connecting ASi, 4-8
connecting PROFIBUS-DP, 4-8
definition, 1-2
install, 4-2
installation, 4-1
installation location, 4-2
operating with external master, 5-6
parameterization message, C-1
start-up, 7-2
using, 1-2
view, 1-5
wiring, 4-3
DP/ASi link to S7, 6-1
Dynamic diagnostics, 8-8
Distributed I/O System DP/ASi Link
EWA 4NEB 710 6055-02b
Index
E
EMC Directive, A-2
Error handling, 8-1
Example
address assignment, C-7, C-9
configuration message, D-5
configure with COM ET 200 Windows, 5-5
Example configuration, of a module, 2-5
Example installation, ASi, 2-2
External master, 5-6
F
FB IM308C, 8-1
First station diagnosis, 8-14
FM approval, A-3
FREEZE, Glossary-3
G
Grounded installation, 4-4
rules, 4-4
I
I/O code, Glossary-3
I/O code, 2-3, B-1
ID code, Glossary-4
ID code, 2-3
Identification byte, D-4
IEC 1131, A-2
IM 308-C, Glossary-4
Install, rules, 4-2
Installation, 4-2
grounded, 4-4
ungrounded, 4-6
Installation location, 4-2
IP 66, Glossary-4
IP 66/IP 67
assuring, 4-2
tips on protection degree, 4-2
IP 67, Glossary-4
L
LED
diagnostics, 8-2
display, 8-2
Distributed I/O System DP/ASi Link
EWA 4NEB 710 6055-02b
LED display, 8-2
ASi diagnostics, 8-4
ASi slave failure, 8-5
bus fault PROFIBUS-DP, 8-3
check, 8-5
combinations, 8-5
meaning, 8-2
mode, 8-3
Length byte, D-4
Length, PROFIBUS-DP, 1-4
M
Manual
applicability, iii
electronic, iv
Manuals, other, iv
Manufacturer ID, 8-13
Manufacturer-specific ID, D-4
Master, Glossary-4
diagnosis, 8-7
diagnostics, Glossary-4
Master/slave method, Glossary-4
Meanings of LED display, 8-2
Mode display, 8-3
Module diagnosis, 8-14, 8-16
N
Normal operation, 7-4
O
Operating mode, 7-1
automatic programming, 7-6
normal operation, 7-4
start-up, 7-2
Optimize, address assignment, C-8
Overview, 1-1
P
Parameterization data, 5-1
Parameterization data for ASi, C-6
address assignment, C-7
input and output area, C-6
structure, C-6
Index-3
Index
Parameterization message, C-1
control byte, C-4
DP standard section, C-2
station status, C-3
structure, C-2
Parameters for ASi slave, C-6
Passive node, Glossary-4
Penetration technique, 2-6
Pin assignment
ASi terminal connection, 4-8
power supply, 4-9
PROFIBUS-DP, 4-9
Power supply, 4-9
external, 2-4
Power supply connector, 4-17
connections, 4-17
Power supply unit, ASi, 2-4
Preface, iii, vii
PROFIBUS, Glossary-4
PROFIBUS-DP, Glossary-5
bus cables, 4-19
wiring, 4-23
Programmer connecting cable, 4-22
Programmer connector, 4-18
connections, 4-18
PS connector, 4-17
Q
Queries, v
R
Reading data records with SFC 59 ”WR_REC”,
overview, 6-3
Reconfigure, 5-4
Response monitoring time, Glossary-5
Rules
for address assignment, C-8
for connection of circular connectors, 4-23
for grounded installation, 4-4
for installation, 4-2
for programmer connector, 3-10
for ungrounded installation, 4-6
for T connector, 3-5
RUN, 8-3
Index-4
S
Second station diagnosis, 8-18, 8-20
Setpoint configuration, Glossary-5
Slave, Glossary-5
diagnostics, 8-7
ASi, 2-3
Sockets, T connector, 4-16
Spur line, 3-10
Standards, A-2
Standards and approvals, A-2
Start-up, 7-2
Static diagnostics, 8-8
Station, Glossary-5
Station diagnostics, Glossary-5
Station number, Glossary-5
default setting, 4-13
in EEPROM, 4-13
modifying in EEPROM, 4-13
range of values, 4-11
selecting, 4-11
selector switch, 4-11
setting on DIP switch block, 4-12
Station status 1, 8-12
Station status 2, 8-12
Station status 3, 8-13
Structure
configuration message, D-3
diagnosis, 8-10
diagnostic message, 8-10
I/O length byte, D-4
identification byte, D-4
parameterization data for ASi, C-6
parameterization message, C-2
Structure of the parameterization message in
limited assignment of parameters, C-10
SYNC, Glossary-5
T
T connector, 4-16
connect, rule, 3-5
sockets, 4-16
Technical data, A-1
dimension drawing, A-6
Terminating resistor, 4-21
Training, v
Type file, Glossary-6
Distributed I/O System DP/ASi Link
EWA 4NEB 710 6055-02b
Index
U
V
UL, A-3
UL approval, A-3
UNFREEZE, Glossary-6
Ungrounded installation, 4-6
Rules, 4-6
UNSYNC, Glossary-6
Using the DP/ASi link, 1-2
View of DP/ASi link, 1-5
Distributed I/O System DP/ASi Link
EWA 4NEB 710 6055-02b
W
Wiring, of PROFIBUS-DP, 4-23
Index-5
Index
Index-6
Distributed I/O System DP/ASi Link
EWA 4NEB 710 6055-02b
Siemens AG
AUT E 148
Postfach 1963
D–92209 Amberg
Federal Republic of Germany
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2
Distributed I/O System DP/ASi Link
EWA 4NEB 710 6055-02b
52 mm
2.05 inch
163 mm
6.42 inch
Drilling jig
DP/ASI link
Drill holes: thread M4
52 mm
2.05 inch
163 mm
6.42 inch
Drilling jig
DP/ASI link
Drill holes: thread M4
52 mm
2.05 inch
163 mm
6.42 inch
Drilling jig
DP/ASI link
Drill holes: thread M4
Distributed I/O System DP/ASI Link
EWA 4NEB 710 6055-02b
1
52 mm
2.05 inch
163 mm
6.42 inch
Drilling jig
DP/ASI link
Drill holes: thread M4
52 mm
2.05 inch
163 mm
6.42 inch
Drilling jig
DP/ASI link
Drill holes: thread M4
52 mm
2.05 inch
163 mm
6.42 inch
Drilling jig
DP/ASI link
Drill holes: thread M4
Distributed I/O System DP/ASI Link
EWA 4NEB 710 6055-02b
3