Siemens SIMATIC S5 User manual

SIMATIC S5
SINEC L2 Interface of the
S5-95U Programmable Controller
Manual
EWA 4NEB 812 6112-02a
Edition 02

STEP ® SINEC ® and SIMATIC ® are registered trademarks of Siemens AG.
Copyright© Siemens AG 1993
Subject to change without prior notice.
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.
EWA 4NEB 812 6112-02

Preface
System Description
Start-Up, Tests, and Diagnostics
Data Transmission Using a Standard Connection
Integrated Standard Function Blocks, L2-SEND and L2-RECEIVE
Installation Guidelines
Data Transmission Using PLC to PLC Connections
Data Transmission Using Cyclic I/O (ZP)
Appendices
Index
Data Transmission by Accessing Layer 2 Services
Programmer Functions Over the SINEC L2 Network
A/B/C/
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EWA 4NEB 812 6112-02

S5-95U/95U, SINEC L2 Table of Contents
Table of Contents
Page
Preface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ix
1 System Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 - 1
1.1 Communications in Industry . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 - 1
1.2 The SINEC L2 Local Area Network . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 - 3
1.3 Procedure for Accessing the SINEC L2 Network . . . . . . . . . . . . . . . . . 1 - 4
1.4 Assigning Parameters for the L2 Interface of the S5-95U . . . . . . . . . . . 1 - 8
1.5 Types of Data Transmission for the S5-95U . . . . . . . . . . . . . . . . . . . . 1 - 13
1.6 Physical Bus Characteristics and Installation Techniques
for the SINEC L2 Network . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 - 21
1.6.1 RS 485 Transmission Technology . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 - 21
1.6.2 Fiber Optics Transmission Technology . . . . . . . . . . . . . . . . . . . . . . . . 1 - 25
1.6.3 Mixed Configuration of RS 485 and Fiber Optics Transmission Technology 1 - 28
2 Installation Guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 - 1
2.1 Basic Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 - 1
2.2 Installing a SINEC L2 Bus Segment . . . . . . . . . . . . . . . . . . . . . . . . . . 2 - 2
2.3 Linking Bus Segments with the L2 Repeater . . . . . . . . . . . . . . . . . . . . 2 - 4
2.3.1 Electrical Design of the SINEC L2 Repeater RS 485 . . . . . . . . . . . . . . 2 - 4
2.3.2 Connecting the Supply Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 - 5
2.3.3 Connecting Bus Segments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 - 6
2.4 Routing Cables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 - 8
3 Start-Up, Tests, and Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 - 1
3.1 Design and Mode of Operation of the Programmable Controller . . . . . . . 3 - 2
3.2 START-UP Sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 - 4
EWA 4NEB 812 6112-02 v

Table of Contents S5-95U/95U, SINEC L2
Page
3.3 Starting Up a System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 - 5
3.3.1 Suggestions for Configuring and Installing the Equipment . . . . . . . . . . . 3 - 5
3.3.2 Prerequisites for Starting Up the S5-95U as a SINEC L2 Station . . . . . . 3 - 6
3.3.3 System Startup Diagnostics and Procedures . . . . . . . . . . . . . . . . . . . . 3 - 7
3.4 FMA Services . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 - 10
3.4.1 Principle of Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 - 10
3.4.2 The Types of FMA Services . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 - 12
3.4.3 Assigning Parameters in DB1 for the FMA Services . . . . . . . . . . . . . . . 3 - 13
3.4.4 Managing of all FMA Services with FB222 . . . . . . . . . . . . . . . . . . . . . . 3 - 14
3.4.5 Reading Out a List of All Active Stations on the Network
(LAS_LIST_CREATE) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 - 17
3.4.6 Reading the Status of Another Station (FDL_STATUS) . . . . . . . . . . . . 3 - 19
3.4.7 Reading Updated Bus Parameters (READ_VALUE) . . . . . . . . . . . . . . . 3 - 21
3.4.8 Reading Out Available Token Hold Time When Receiving the Token
(TIME_TTH_READ) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 - 24
3.4.9 Reading Out the Event Message (MAC_EVENT) . . . . . . . . . . . . . . . . 3 - 26
4 Data Transmission Using a Standard Connection . . . . . . . . . . . . . . . . . . . 4 - 1
4.1 Features of a Standard Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 - 1
4.2 Assigning Parameters in DB1 of the S5-95U for Data Exchange with
Standard Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 - 3
4.3 Transmitting Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 - 5
4.4 Receiving Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 - 7
4.5 Programming Example for Data Transmission via a Standard Connection 4 - 9
4.6 Broadcast Request (“Transmit to All”) . . . . . . . . . . . . . . . . . . . . . . . . 4 - 14
5 Integral Standard Function Blocks L2-SEND and L2-RECEIVE . . . . . . . . . . 5 - 1
5.1 Parameters for L2-SEND and L2-RECEIVE . . . . . . . . . . . . . . . . . . . . . 5 - 2
5.2 Direct and Indirect Parameter Settings for the L2 Function Blocks . . . . . 5 - 4
5.3 Parameter Assignment Error Byte (PAFE) . . . . . . . . . . . . . . . . . . . . . . 5 - 5
5.4 Status Byte . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 - 6
vi EWA 4NEB 812 6112-02

S5-95U/95U, SINEC L2 Table of Contents
Page
6 Data Transmission Using PLC-to-PLC Connections . . . . . . . . . . . . . . . . . . 6 - 1
6.1 Features of the PLC-to-PLC Connections . . . . . . . . . . . . . . . . . . . . . . 6 - 1
6.2 Assigning Parameters in DB1 of the S5-95U for Data Exchange
with PLC-to-PLC Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 - 4
6.3 Programming Example for Data Transmission via PLC-to-PLC Connections
Using Standard Function Blocks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 - 6
7 Data Transmission Using Cyclic I/O . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 - 1
7.1 Features of Cyclic I/O . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 - 1
7.2 Assigning Parameters in DB1 of the S5-95U for Data Exchange
with Cyclic I/O . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 - 4
7.3 Controlling Data Transmission in the Control Program . . . . . . . . . . . . . 7 - 7
7.4 Programming Example for Data Transmission via Cyclic I/O . . . . . . . . . 7 - 12
8 Data Transmission by Accessing Layer 2 Services . . . . . . . . . . . . . . . . . . 8 - 1
8.1 Characteristic Features of Layer 2 Access Data Transmission . . . . . . . . 8 - 2
8.2 Types and Characteristic Features of the Layer 2 Services . . . . . . . . . . 8 - 5
8.3 Assigning the S5-95U Parameters for Data Communications . . . . . . . . . 8 - 9
8.4 FBs for Managing All Layer 2 Services . . . . . . . . . . . . . . . . . . . . . . . . 8 - 11
8.5 Sending Data to a Station (SDA Service) . . . . . . . . . . . . . . . . . . . . . . 8 - 15
8.6 Sending Data to Several Stations (SDN) . . . . . . . . . . . . . . . . . . . . . . . 8 - 19
8.7 Holding Data for Fetching Once Only by a Station
(RUP_SINGLE Service) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 - 23
8.8 Holding Data Ready for Fetching Several Times Over by One
or More Stations (RUP_MULTIPLE) . . . . . . . . . . . . . . . . . . . . . . . . . . 8 - 26
8.9 Sending Data and Fetching Data from a Station (SRD Service) . . . . . . . 8 - 29
EWA 4NEB 812 6112-02 vii

Table of Contents S5-95U/95U, SINEC L2
Page
9 Programmer Functions Over the SINEC L2 Network . . . . . . . . . . . . . . . . . . 9 - 1
9.1 Programmer Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 - 2
9.2 Selecting the L2 Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 - 3
9.3 Entering Defaults . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 - 4
9.4 Editing a Path . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 - 5
9.5 Setting the L2 Basic Parameters on the Programmer . . . . . . . . . . . . . . 9 - 10
9.6 Activating an Editing Path . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 - 10
Appendices
A DB1 Parameters, DB1 Parameter Assignment Errors,
Calculation of Target Rotation Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A - 1
B SAP Numbers / Job Numbers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B - 1
C List of Abbreviations/Glossary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C - 1
D List of Accessories and Order Numbers . . . . . . . . . . . . . . . . . . . . . . . . . . . D - 1
E Technical Specifications; Cycle Delay Times of the PLC Caused by
SINEC L2 Operations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E - 1
F S5-95U Communications Matrix and Emulation of Types of Data
Transmission in Layer 2 with S5-95U . . . . . . . . . . . . . . . . . . . . . . . . . . . . . F - 1
Index
viii EWA 4NEB 812 6112-02

S5-95U, SINEC L2 Preface
How to Use This Manual
The S5-95U programmable controller with SINEC L2 interface can communicate with SIMATIC S5
controllers and other control devices via the SINEC L2 bus system.
To use the SINEC L2 interface to its full capacity, you need detailed information.
This manual contains descriptions for installing and operating the following programmable controllers
as SINEC L2 stations:
• S5-95U, Order No. 6ES5 095-8MB01
• S5-95U, Order No. 6ES5 095-8MB02
The manual does not provide information on the performance of other controllers on the L2 bus.
Only special features of the S5-95U pertaining to data interchange with the CP 5430
communications processor are mentioned.
Experience in configuring and starting up bus-type LANs is helpful, though not necessary, to work
with this manual successfully.
This section is intended to make it easier for you to use the manual.
Contents of This Manual
•Chapter 1
This chapter provides an overview of the applications, performance capabilities, operation
principle, basic terminology, and transmission physics of the SINEC L2 bus system. This
chapter characterizes the possible types of data transmission and specifies and explains the
selection criteria for special applications.
• Chapter 2
This chapter specifies the installation procedures that you should follow to ensure that your
S5-95U controller functions properly as a station on the SINEC L2 bus.
• Chapter 3
This chapter summarizes information that you need to start up your S5-95U controller as a
station on the SINEC L2 bus. You will also discover how to recognize faults in the controller and
find out what tests and diagnostics are available to you.
• Chapters 4, 5, 6, 7 and 8
These chapters use examples to describe the various types of data transmission in detail.
• Chapter 9
This chapter shows you how to implement programmer functions over the LAN.
• Appendices
The appendices contain two types of information. On the one hand, you will find brief
information for regular use (e.g., all the DB1 parameters); on the other hand, you will find
additional information of interest to network experts (e.g., concerning the SAPs).
Each chapter begins with a brief explanation of its contents. By reading the first section of a
chapter, you can determine whether the information in the chapter is important to you.
EWA 4NEB 812 6112-02a ix

Preface S5-95U, SINEC L2
Conventions
The "S5-90U/S5-95U System Manual" and the SINEC L2 Manual - Interface of the S5-95U
Programmable Controller" observe the same conventions.
All the conventions listed at the beginning of the System Manual apply also to this manual. Please
refer to that Manual. Your attention is also drawn to the "Safety-Related Guidelines for the User" on
page xi at the end of this chapter.
Courses
Siemens offer a wide range of training courses for SINEC users.
For more information, please contact
• Informations- und Trainings-Center für Automatisierungstechnik
AUT 959 Kursbüro
Postfach 21 12 62
76181 Karlsruhe
Federal Republic of Germany
Tel.: (Nat. access code) 721 595-2917
or
• Your nearest Siemens representative
Reference Material
This manual contains a comprehensive description of the SINEC L2 interface of the S5-95U
programmable controller. The following manuals etc. contain more detailed information on topics that
are handled only briefly here:
SINEC L2 Local Area Network
CP 5430
Order No. 6GK1 970-5AA00-0AA0
SINEC
L2/L2F0 Manual
Order No. 6GK1 970-5CA00-0AA0
Installation Guidelines:
Installing the SINEC L2 Local Area Network
Order No. AR 463-2-220
PROFIBUS Standard (DIN 19245)
Beuth-Verlag; Berlin 1988
Bender, Klaus: Profibus
Hauser-Verlag; Munich 1990
Kafka, Gerhard: Grundlagen der Datenkommunikation;
Datacom-Fachbuchreihe; Pulheim 1989.
(available in German only)
Stöttinger, Klaus H.: Das OSI-Referenzmodell;
Datacom-Fachbuchreihe; Pullheim 1989.
(available in German only)
There are correction forms at the end of this manual. Please use them to indicate any corrections,
additions or suggestions you might have in the way of improvement that will benefit the next edition
of the manual.
x EWA 4NEB 812 6112-02a

S5-95U, SINEC L2 Preface
Safety-Related Guidelines for the User
This document provides the information required for the intended use of the particular product. The
documentation is written for technically qualified personnel.
Qualified personnel as referred to in the safety guidelines in this document as well as on the product
itself are defined as follows.
• System planning and design engineers who are familiar with the safety concepts of automation
equipment.
• Operating personnel who have been trained to work with automation equipment and are
conversant with the contents of the document in as far as it is connected with the actual
operation of the plant.
• Commissioning and service personnel who are trained to repair such automation equipment and
who are authorized to energize, de-energize, clear, ground, and tag circuits, equipment, and
systems in accordance with established safety practice.
Danger Notices
The notices and guidelines that follow are intended to ensure personal safety, as well as protect the
products and connected equipment against damage.
The safety notices and warnings for protection against loss of life (the users or service personnel) or
for protection against damage to property are highlighted in this document by the terms and
pictograms defined here. The terms used in this document and marked on the equipment itself have
the following significance.
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
contains important information about the
product, its operation or a part of the doc-
ument to which special attention is drawn.
Danger
indicates that death, severe personal injury
or substantial property damage will result if
proper precautions are not taken.
Proper Usage
Warning
• The equipment/system or the system components may only be used for the
applications described in the catalog or the technical description, and only in
combination with the equipment, components, and devices of other manu-
facturers as far as this is recommended or permitted by Siemens.
• The product will function correctly and safely only if it is transported, stored, set
up, and installed as intended, and operated and maintained with care.
EWA 4NEB 812 6112-02a xi