Siemens Simantic ET200SP User guide

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SIMATIC
ET 200SP
Distributed I/O system
System Manual
12/2016
A5E03576849
-AG
Preface
Guide to documentation
1
System overview
2
Application planning
3
Installation
4
Wiring
5
Configuring
6
Basics of program execution
7
Protection
8
Configuration control (option
handling)
9
Commissioning
10
SIMATIC memory card
11
Maintenance
12
Test functions and
eliminating problems
13
Technical specifications
14
Dimension drawings
A
Accessories/spare parts
B
Calculating the leakage
resistance
C

Siemens AG
Division Digital Factory
Postfach 48 48
90026 NÜRNBERG
GERMANY
A5E03576849-AG
Ⓟ
03/2017 Subject to change
Copyright © Siemens AG 2012 - 2016.
All rights reserved
Legal information
Warning notice system
This manual contains notices you have to observe in order to ensure your personal safety, as well as to prevent
damage to property. The notices referring to your personal safety are highlighted in the manual by a safety alert
symbol, notices referring only to property damage have no safety alert symbol. These notices shown below are
graded according to the degree of danger.
DANGER
indicates that death or severe personal injury will result if proper precautions are not taken.
WARNING
indicates that death or severe personal injury may result if proper precautions are not taken.
CAUTION
indicates that minor personal injury can result if proper precautions are not taken.
NOTICE
indicates that property damage can result if proper precautions are not taken.
If more than one degree of danger is present, the warning notice representing the highest degree of danger will
be used. A notice warning of injury to persons with a safety alert symbol may also include a warning relating to
property damage.
Qualified Personnel
The product/system described in this documentation may be operated only by
personnel qualified
for the specific
task in accordance with the relevant documentation, in particular its warning notices and safety instructions.
Qualified personnel are those who, based on their training and experience, are capable of identifying risks and
avoiding potential hazards when working with these products/systems.
Proper use of Siemens products
Note the following:
WARNING
Siemens products may only be used for the applications described in the catalog and in the relevant technical
documentation. If products and components from other manufacturers are used, these must be recommended
or approved by Siemens. Proper transport, storage, installation, assembly, commissioning, operation and
maintenance are required to ensure that the products operate safely and without any problems. The permissible
ambient conditions must be complied with. The information in the relevant documentation must be observed.
Trademarks
All names identified by ® are registered trademarks of Siemens AG. The remaining trademarks in this publication
may be trademarks whose use by third parties for their own purposes could violate the rights of the owner.
Disclaimer of Liability
We have reviewed the contents of this publication to ensure consistency with the hardware and software
described. Since variance cannot be precluded entirely, we cannot guarantee full consistency. However, the
information in this publication is reviewed regularly and any necessary corrections are included in subsequent
editions.

Distributed I/O system
4System Manual, 12/2016, A5E03576849-AG
Preface
Preface
Purpose of the documentation
This documentation provides important information on configuring, installing, wiring and
commissioning the ET 200SP distributed I/O system.
Basic knowledge required
A basic knowledge of automation technology is required to understand the documentation.
Validity of the documentation
This documentation applies to the distributed I/O system, ET 200SP.
Definition
In this document, " motor starter" always refers to all variants of the ET 200SP motor
starters.
Conventions
Please pay particular attention to notes highlighted as follows:
Note
Notes conta
in important information on the product, handling the product or on part of the
documentation to which you should pay particular attention.

Preface
Distributed I/O system
System Manual, 12/2016, A5E03576849-AG 5
Special information
WARNING
Hazardous Voltage
Can Cause Death, Serious Injury, or Property Damage.
Proper use of hardware products
This equipment is only allowed to be used for the applications described in the catalog and
in the technical description, and only in conjunction with non-Siemens equipment and
components recommended by Siemens.
Correct transport, storage, installation and assembly, as well as careful operation and
maintenance, are required to ensure that the product operates safely and without faults.
EU note: Start-up/commissioning is absolutely prohibited until it has been ensured that the
machine in which the component described here is to be installed fulfills the
regulations/specifications of Directive 2006/42/EC.
Note
Important note for maintaining operational safety of your plant
Plants with safety
-related features are subject to special operational safety requirements on
the part of the operator. Even suppliers are required to observe special measures during
product monitoring. For this reason, we inform you in the form of personal notifications about
product developments and features that are (or could be) relevant to operation of systems
from a safety perspective.
By subscribing to the appropriate notifications, you will ensure that you are always up
-to-
date
and ab
le to make changes to your system, when necessary.
Log onto Industry Online Support. Go to the following links and, on the side, right click on
"email on update":
•
SIMATIC S7-300/S7-300F (https://support.industry.siemens.com/cs/ww/en/ps/13751)
•
SIMATIC S7-400/S7-400H/S7-400F/FH
(https://support.industry.siemens.com/cs/ww/en/ps/13828)
•
SIMATIC WinAC RTX (F) (https://support.industry.siemens.com/cs/ww/en/ps/13915)
•
SIMATIC S7-1500/SIMATIC S7-1500F
(https://support.industry.siemens.com/cs/ww/en/ps/13716)
•
SIMATIC S7-1200/SIMATIC S7-1200F
(https://support.industry.siemens.com/cs/ww/en/ps/13683)
•
Distributed I/O (https://support.industry.siemens.com/cs/ww/en/ps/14029)
•
STEP 7 (TIA Portal) (https://support.industry.siemens.com/cs/ww/en/ps/14667)
Note
When usin
g F-CPUs in safety mode and fail-safe modules, observe the description of the
SIMATIC Industrial Software SIMATIC Safety
- Configuring and Programming
(
http://support.automation.siemens.com/WW/view/en/54110126) fail-safe system.

Preface
Distributed I/O system
6System Manual, 12/2016, A5E03576849-AG
Recycling and disposal
The products are low in pollutants and can be recycled. For environmentally compliant
recycling and disposal of your electronic waste, please contact a company certified for the
disposal of electronic waste.
Security information
Siemens provides products and solutions with industrial security functions that support the
secure operation of plants, systems, machines and networks.
In order to protect plants, systems, machines and networks against cyber threats, it is
necessary to implement – and continuously maintain – a holistic, state-of-the-art industrial
security concept. Siemens’ products and solutions only form one element of such a concept.
Customer is responsible to prevent unauthorized access to its plants, systems, machines
and networks. Systems, machines and components should only be connected to the
enterprise network or the internet if and to the extent necessary and with appropriate security
measures (e.g. use of firewalls and network segmentation) in place.
Additionally, Siemens’ guidance on appropriate security measures should be taken into
account. For more information about industrial security, please visit
(http://www.siemens.com/industrialsecurity).
Siemens’ products and solutions undergo continuous development to make them more
secure. Siemens strongly recommends to apply product updates as soon as available and to
always use the latest product versions. Use of product versions that are no longer supported,
and failure to apply latest updates may increase customer’s exposure to cyber threats.
To stay informed about product updates, subscribe to the Siemens Industrial Security RSS
Feed under (http://www.siemens.com/industrialsecurity).

Preface
Distributed I/O system
System Manual, 12/2016, A5E03576849-AG 7
Siemens Industry Online Support
You can find current information on the following topics quickly and easily here:
●
Product support
All the information and extensive know-how on your product, technical specifications,
FAQs, certificates, downloads, and manuals.
●
Application examples
Tools and examples to solve your automation tasks – as well as function blocks,
performance information and videos.
●
Services
Information about Industry Services, Field Services, Technical Support, spare parts and
training offers.
●
Forums
For answers and solutions concerning automation technology.
●
mySupport
Your personal working area in Industry Online Support for messages, support queries,
and configurable documents.
This information is provided by the Siemens Industry Online Support in the Internet
(http://www.siemens.com/automation/service&support).
Industry Mall
The Industry Mall is the catalog and order system of Siemens AG for automation and drive
solutions on the basis of Totally Integrated Automation (TIA) and Totally Integrated Power
(TIP).
Catalogs for all the products in automation and drives are available on the Internet
(https://mall.industry.siemens.com).

Distributed I/O system
8System Manual, 12/2016, A5E03576849-AG
Table of contents
Preface ................................................................................................................................................... 4
1 Guide to documentation ........................................................................................................................ 13
2 System overview................................................................................................................................... 17
2.1 What is the SIMATIC ET 200SP distributed I/O system?...................................................... 17
2.2 What are fail-safe automation systems and fail-safe modules? ............................................ 20
2.3 How are SIMATIC Safety F-systems structured with ET 200SP? ......................................... 21
2.4 Components........................................................................................................................... 25
3 Application planning.............................................................................................................................. 32
3.1 Selecting the BaseUnit for I/O modules................................................................................. 36
3.1.1 Digital, fail-safe, communication, technology or analog modules without temperature
measurement ......................................................................................................................... 36
3.1.2 Analog modules with temperature measurement .................................................................. 37
3.2 Selecting motor starters with a suitable BaseUnit ................................................................. 38
3.2.1 Selecting a BaseUnit for motor starters ................................................................................. 38
3.2.2 Selecting the motor starter..................................................................................................... 39
3.2.3 Selecting accessories for motor starters................................................................................ 40
3.3 Hardware configuration.......................................................................................................... 41
3.4 Forming potential groups ....................................................................................................... 43
3.4.1 Basics..................................................................................................................................... 43
3.4.2 Forming potential groups with AC I/O modules ..................................................................... 47
3.4.3 Forming potential groups with fail-safe modules ................................................................... 49
3.4.4 Forming potential groups with motor starters ........................................................................ 50
3.5 Configuration examples for potential groups ......................................................................... 52
4 Installation ............................................................................................................................................ 54
4.1 Basics..................................................................................................................................... 54
4.2 Installation conditions for motor starters ................................................................................ 58
4.3 Mounting the CPU/interface module ...................................................................................... 60
4.4 Installing the CM DP communication module ........................................................................ 62
4.5 Mounting BaseUnits for I/O modules ..................................................................................... 64
4.6 Mounting and dismantling BaseUnits for motor starters........................................................ 66
4.7 Installing the server module ................................................................................................... 68
4.8 Mounting further accessories for motor starters .................................................................... 69
4.8.1 Mounting the cover for the 500 V AC infeed bus ................................................................... 69
4.8.2 Mounting the mechanical bracket for the BaseUnit ............................................................... 71
4.8.3 Mounting the BU cover .......................................................................................................... 74

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System Manual, 12/2016, A5E03576849-AG 9
5 Wiring ................................................................................................................................................... 75
5.1 Rules and regulations for operation........................................................................................75
5.2 Additional rules and regulations for the operation of the ET 200SP with fail-safe
modules ..................................................................................................................................77
5.2.1 Safety extra low voltage for fail-safe modules and fail-safe motor starters ............................77
5.2.2 Requirements for sensors and actuators for fail-safe modules and fail-safe motor
starters ....................................................................................................................................78
5.2.3 Crosstalk of digital input/output signals ..................................................................................81
5.3 Additional rules and instructions for operation with motor starters.........................................81
5.3.1 Protection against short circuit................................................................................................81
5.4 Operating the ET 200SP on grounded incoming supply ........................................................82
5.5 Electrical configuration of the ET 200SP ................................................................................85
5.6 Wiring rules .............................................................................................................................87
5.7 Wiring BaseUnits for I/O modules...........................................................................................90
5.8 Connecting cable shields for I/O modules ..............................................................................92
5.9 Wiring BaseUnits for motor starters........................................................................................94
5.10 Connecting the 3DI/LC module for the motor starter..............................................................97
5.11 Connecting the supply voltage to the CPU/interface module .................................................99
5.12 Connecting interfaces for communication.............................................................................101
5.12.1 Connecting PROFINET IO to the CPU/interface module via the bus adapter BA
2xRJ45..................................................................................................................................101
5.12.2 Connecting PROFINET IO to the CPU/interface module via the BA 2xFC BusAdapter ......104
5.12.3 Connecting PROFINET IO to the CPU/interface module via BA 2xSCRJ BusAdapter .......108
5.12.4 Connecting PROFINET IO to the interface module via the BA SCRJ/RJ45 BusAdapter ....111
5.12.5 Connecting PROFINET IO to the interface module via the BA SCRJ/FC BusAdapter ........113
5.12.6 Connecting PROFINET IO to the interface module via the BA 2xLC BusAdapter ...............115
5.12.7 Connecting PROFINET IO to the interface module via the BA LC/RJ45 BusAdapter .........118
5.12.8 Connecting PROFINET IO to interface module via BA LC/FC BusAdapter .........................120
5.12.9 Connecting PROFINET IO (port P3) to the CPU..................................................................121
5.12.10 Connecting the PROFIBUS DP interface to the interface module/communications
module CM DP......................................................................................................................123
5.13 Inserting I/O modules / motor starters and BU covers..........................................................124
5.14 Mounting/disassembly of motor starters ...............................................................................126
5.14.1 Mounting the fan ...................................................................................................................126
5.14.2 Mounting/disassembly of motor starters...............................................................................127
5.14.3 3DI/LC module ......................................................................................................................130
5.15 Labeling ET 200SP ...............................................................................................................133
5.15.1 Factory markings ..................................................................................................................133
5.15.2 Optional markings .................................................................................................................135
5.15.3 Applying color identification labels........................................................................................137
5.15.4 Applying labeling strips .........................................................................................................138
5.15.5 Applying reference identification labels ................................................................................139

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Distributed I/O system
10 System Manual, 12/2016, A5E03576849-AG
6 Configuring ..........................................................................................................................................140
6.1 Configuring ET 200SP ......................................................................................................... 140
6.2 Configuring the CPU ............................................................................................................ 143
6.2.1 Reading out the configuration .............................................................................................. 143
6.2.2 Addressing ........................................................................................................................... 145
6.2.3 Process images and process image partitions .................................................................... 147
6.2.3.1 Process image - overview.................................................................................................... 147
6.2.3.2 Automatically updating process image partitions................................................................. 148
6.2.3.3 Update process image partitions in the user program......................................................... 148
6.3 Configuring the interface module ......................................................................................... 149
7 Basics of program execution ................................................................................................................150
7.1 Events and OBs ................................................................................................................... 150
7.2 CPU overload behavior........................................................................................................ 153
7.3 Asynchronous instructions ................................................................................................... 155
8 Protection ............................................................................................................................................163
8.1 Overview of the protective functions of the CPU ................................................................. 163
8.2 Configuring access protection for the CPU.......................................................................... 164
8.3 Using the user program to set additional access protection................................................ 167
8.4 Know-how protection ........................................................................................................... 167
8.5 Copy protection.................................................................................................................... 170
9 Configuration control (option handling) .................................................................................................172
9.1 Configuring........................................................................................................................... 175
9.2 Creating the control data record .......................................................................................... 177
9.2.1 Introduction .......................................................................................................................... 177
9.2.2 Control data record for an ET 200SP CPU.......................................................................... 179
9.2.3 Control data record for an interface module ........................................................................ 180
9.2.4 Feedback data record for interface modules ....................................................................... 184
9.2.5 Data records and functions .................................................................................................. 186
9.3 Transferring control data record in the startup program of the CPU ................................... 187
9.4 Behavior during operation.................................................................................................... 191
9.5 Examples of configuration control........................................................................................ 192

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System Manual, 12/2016, A5E03576849-AG 11
10 Commissioning ................................................................................................................................... 197
10.1 Overview ...............................................................................................................................197
10.2 Commissioning the ET 200SP for PROFINET IO ................................................................199
10.2.1 ET 200SP CPU as an IO controller ......................................................................................199
10.2.2 ET 200SP CPU as an I-device .............................................................................................201
10.2.3 ET 200SP as an IO device ...................................................................................................203
10.3 Commissioning the ET 200SP on PROFIBUS DP ...............................................................204
10.3.1 ET 200SP as a DP master....................................................................................................204
10.3.2 ET 200SP as I-slave .............................................................................................................206
10.3.3 ET 200SP as a DP slave ......................................................................................................208
10.4 Startup of the ET 200SP with empty slots ............................................................................209
10.5 Removing/inserting a SIMATIC memory card on the CPU...................................................209
10.6 Operating modes of the CPU................................................................................................211
10.6.1 STARTUP mode ...................................................................................................................211
10.6.2 STOP mode ..........................................................................................................................214
10.6.3 RUN mode ............................................................................................................................215
10.6.4 Operating mode transitions...................................................................................................215
10.7 CPU memory reset ...............................................................................................................217
10.7.1 Automatic memory reset.......................................................................................................218
10.7.2 Manual memory reset ...........................................................................................................219
10.8 Reassigning parameters during operation............................................................................220
10.9 Identification and maintenance data .....................................................................................221
10.9.1 Reading out and entering I&M data ......................................................................................221
10.9.2 Data record structure for I&M data .......................................................................................223
10.10 Shared commissioning of projects........................................................................................225
10.11 Backing up and restoring the CPU configuration..................................................................225
10.11.1 Overview ...............................................................................................................................225
11 SIMATIC memory card........................................................................................................................ 229
11.1 SIMATIC memory card - overview........................................................................................229
11.2 Setting the card type.............................................................................................................234
11.3 Data transfer with SIMATIC memory cards ..........................................................................235

Table of contents
Distributed I/O system
12 System Manual, 12/2016, A5E03576849-AG
12 Maintenance ........................................................................................................................................236
12.1 Removing and inserting I/O modules/motor starters ........................................................... 236
12.2 Changing the type of an I/O module .................................................................................... 239
12.3 Replacing an I/O module ..................................................................................................... 241
12.4 Replacing a motor starter..................................................................................................... 242
12.5 Replacing the terminal box on the BaseUnit........................................................................ 243
12.6 Firmware update .................................................................................................................. 245
12.7 Resetting CPU/interface module (PROFINET) to factory settings ...................................... 250
12.7.1 Resetting the CPU to factory settings .................................................................................. 250
12.7.2 Resetting interface module (PROFINET IO) to factory settings .......................................... 253
12.7.3 Resetting the interface module (PROFINET IO) to factory settings with a RESET
button ................................................................................................................................... 255
12.8 Reaction to faults in fail-safe modules and fail-safe motor starters..................................... 256
12.9 Maintenance and repair ....................................................................................................... 258
12.10 Warranty............................................................................................................................... 258
13 Test functions and eliminating problems...............................................................................................259
13.1 Test functions....................................................................................................................... 259
13.2 Reading out/saving service data.......................................................................................... 265
14 Technical specifications .......................................................................................................................267
14.1 Standards, approvals and safety notes ............................................................................... 268
14.2 Electromagnetic compatibility .............................................................................................. 274
14.3 Electromagnetic compatibility of fail-safe modules .............................................................. 277
14.4 Shipping and storage conditions.......................................................................................... 279
14.5 Mechanical and climatic environmental conditions.............................................................. 279
14.6 Insulation, protection class, degree of protection and rated voltage ................................... 281
14.7 Use of the ET 200SP in zone 2 potentially explosive atmospheres .................................... 283
A Dimension drawings.............................................................................................................................284
A.1 Shield connector .................................................................................................................. 284
A.2 Labeling strip........................................................................................................................ 284
A.3 Reference identification labels ............................................................................................. 285
B Accessories/spare parts.......................................................................................................................286
B.1 Lightning protection and overvoltage protection for fail-safe modules ................................ 289
C Calculating the leakage resistance .......................................................................................................290
Glossary ..............................................................................................................................................292
Index ...................................................................................................................................................308

Distributed I/O system
System Manual, 12/2016, A5E03576849-AG 13
Guide to documentation
1
The documentation for the SIMATIC ET 200SP distributed I/O system is arranged into three
areas.
This arrangement enables you to access the specific content you require.
Basic information
The system manual describes in detail the configuration, installation, wiring and
commissioning of the SIMATIC ET 200SP. distributed I/O system. The STEP 7 online help
supports you in the configuration and programming.
Device information
Product manuals contain a compact description of the module-specific information, such as
properties, wiring diagrams, characteristics and technical specifications.

Guide to documentation
Distributed I/O system
14 System Manual, 12/2016, A5E03576849-AG
General information
The function manuals contain detailed descriptions on general topics regarding the SIMATIC
ET 200SP distributed I/O system, e.g. diagnostics, communication, Web server, motion
control and OPC UA.
You can download the documentation free of charge from the Internet
(http://w3.siemens.com/mcms/industrial-automation-systems-simatic/en/manual-
overview/tech-doc-et200/Pages/Default.aspx).
Changes and supplements to the manuals are documented in a Product Information.
You can download the product information free of charge from the Internet
(https://support.industry.siemens.com/cs/us/en/view/73021864).
Manual Collection ET 200SP
The Manual Collection contains the complete documentation on the SIMATIC ET 200SP
distributed I/O system gathered together in one file.
You can find the Manual Collection on the Internet
(http://support.automation.siemens.com/WW/view/en/84133942).
"mySupport"
With "mySupport", your personal workspace, you make the most of your Industry Online
Support.
In "mySupport" you can store filters, favorites and tags, request CAx data and put together
your personal library in the Documentation area. Furthermore, your data is automatically
filled into support requests and you always have an overview of your current requests.
You need to register once to use the full functionality of "mySupport".
You can find "mySupport" in the Internet (https://support.industry.siemens.com/My/ww/en).
"mySupport" - Documentation
In the Documentation area of "mySupport", you have the possibility to combine complete
manuals or parts of them to make your own manual.
You can export the manual in PDF format or in an editable format.
You can find "mySupport" - Documentation in the Internet
(http://support.industry.siemens.com/My/ww/en/documentation).

Guide to documentation
Distributed I/O system
System Manual, 12/2016, A5E03576849-AG 15
"mySupport" - CAx Data
In the CAx Data area of "mySupport", you can have access the latest product data for your
CAx or CAe system.
You configure your own download package with a few clicks.
In doing so you can select:
●Product images, 2D dimension drawings, 3D models, internal circuit diagrams, EPLAN
macro files
●Manuals, characteristics, operating manuals, certificates
●Product master data
You can find "mySupport" - CAx Data in the Internet
(http://support.industry.siemens.com/my/ww/en/CAxOnline).
Application examples
The application examples support you with various tools and examples for solving your
automation tasks. Solutions are shown in interplay with multiple components in the system -
separated from the focus in individual products.
You can find the application examples on the Internet
(https://support.industry.siemens.com/sc/ww/en/sc/2054).
TIA Selection Tool
With the TIA Selection Tool, you can select, configure and order devices for Totally
Integrated Automation (TIA).
This tool is the successor of the SIMATIC Selection Tool and combines the known
configurators for automation technology into one tool.
With the TIA Selection Tool, you can generate a complete order list from your product
selection or product configuration.
You can find the TIA Selection Tool on the Internet
(http://w3.siemens.com/mcms/topics/en/simatic/tia-selection-tool).

Guide to documentation
Distributed I/O system
16 System Manual, 12/2016, A5E03576849-AG
SIMATIC Automation Tool
You can use the SIMATIC Automation Tool to run commissioning and maintenance activities
simultaneously on various SIMATIC S7 stations as a bulk operation independently of the TIA
Portal.
The SIMATIC Automation Tool provides a multitude of functions:
●Scanning of a PROFINET/Ethernet network and identification of all connected CPUs
●Address assignment (IP, subnet, gateway) and station name (PROFINET device) to a
CPU
●Transfer of the data and the programming device/PC time converted to UTC time to the
module
●Program download to CPU
●Operating mode switchover RUN/STOP
●Localization of the CPU by means of LED flashing
●Reading out CPU error information
●Reading the CPU diagnostic buffer
●Reset to factory settings
●Updating the firmware of the CPU and connected modules
You can find the SIMATIC Automation Tool on the Internet
(https://support.industry.siemens.com/cs/ww/en/view/98161300).
PRONETA
With SIEMENS PRONETA (PROFINET network analysis), you analyze the plant network
during commissioning. PRONETA features two core functions:
●The topology overview independently scans PROFINET and all connected components.
●The IO check is a fast test of the wiring and the module configuration of a system.
You can find SIEMENS PRONETA on the Internet
(https://support.industry.siemens.com/cs/ww/en/view/67460624).

Distributed I/O system
System Manual, 12/2016, A5E03576849-AG 17
System overview
2
2.1
What is the SIMATIC ET 200SP distributed I/O system?
SIMATIC ET 200SP
SIMATIC ET 200SP is a scalable and highly flexible distributed I/O system for connecting
process signals to a higher-level controller via a fieldbus.
Customer benefits of the system
Figure 2-1 SIMATIC ET 200SP distributed I/O system - Customer benefits

System overview
2.1 What is the SIMATIC ET 200SP distributed I/O system?
Distributed I/O system
18 System Manual, 12/2016, A5E03576849-AG
Area of application
Thanks to its multifunctionality, the SIMATIC ET 200SP distributed I/O system is suitable for
a wide range of applications. Its scalable design allows you to tailor your configuration to
local requirements. Different CPUs/interface modules are available for connection to
PROFINET IO or PROFIBUS DP.
SIMATIC ET 200SP with CPU allows intelligent pre-processing to relieve the higher-level
controller. The CPU can also be used as standalone device.
By using fail-safe CPUs, you can implement applications for safety engineering.
Configuration and programming of your safety program takes place the same way as for
standard CPUs.
A wide range of I/O modules rounds off the product range.
SIMATIC ET 200SP is designed with degree of protection IP20 and is intended for
installation in a control cabinet.
Configuration
The SIMATIC ET 200SP distributed I/O system is installed on a mounting rail. It consists of:
●CPU/interface module
●Up to 64 I/O modules, which can be plugged into BaseUnits in any combination
●Up to 31 motor starters
●A server module that completes the configuration of the ET 200SP.

System overview
2.1 What is the SIMATIC ET 200SP distributed I/O system?
Distributed I/O system
System Manual, 12/2016, A5E03576849-AG 19
Configuration example
①
CPU/interface module
②
Light-colored BaseUnit BU..D with infeed of supply voltage
③
Dark-colored BaseUnits BU..B for extending the potential group
④
BaseUnit for motor starter
⑤
Server module (included in the scope of delivery of the CPU/interface module)
⑥
ET 200SP motor starter
⑦
I/O module
⑧
BusAdapter
⑨
Mounting rail
⑩
Reference identification label
Figure 2-2 Configuration example of the ET 200SP

System overview
2.2 What are fail-safe automation systems and fail-safe modules?
Distributed I/O system
20 System Manual, 12/2016, A5E03576849-AG
2.2
What are fail-safe automation systems and fail-safe modules?
Fail-safe automation systems
Fail-safe automation systems (F-systems) are used in systems with higher safety
requirements. F-systems control processes and ensure that they are in a safe state
immediately after shutdown. In other words, F-systems control processes in which an
immediate shutdown does not endanger persons or the environment.
Safety Integrated
Safety Integrated is the integrated safety concept for automation and drive technology from
Siemens.
Proven technologies and systems from automation technology are used for safety systems.
Safety Integrated includes the complete safety sequence, ranging from sensor, actuator and
fail-safe modules right through to the controller, including safety-related communication via
standard fieldbuses. Drives and controllers handle safety tasks in addition to their actual
functions.
Fail-safe modules
The key difference between fail-safe modules (F-modules) and standard modules is that they
have an internal two-channel design. This means the two integrated processors monitor
each other, automatically test the input and output circuits, and switch the fail-safe module to
a safe state in the event of a fault.
The F-CPU communicates with a fail-safe module via the safety-related PROFIsafe bus
profile.
Fail-safe motor starters
Fail-safe motor starters enable safety-related tripping of motor loads. Fail-safe motor starters
are not PROFIsafe nodes. Motor starters operate together with the fail-safe modules of the
ET 200SP system.
Area of application of ET 200SP with fail-safe I/O modules
By using the ET 200SP distributed I/O system with fail-safe I/O modules, you are replacing
conventional safety engineering configurations. This includes the replacement of switching
devices for emergency STOP, protective door monitors, two-hand operation, etc.