Siemens SIMATIC ET 200SP Manuale utente

ET 200SP distributed I/O system

___________________

SIMATIC

ET 200SP

ET 200SP distributed I/O system

Product Information

07/2013

A5E32288220

-AA

Preface

Product overview

Application planning

Installation

Connecting

Configuring

Maintenance

Technical specifications

Accessories/spare parts

Translation of original operating instructions

Siemens AG

Industry Sector

Postfach 48 48

90026 NÜRNBERG

GERMANY

A5E32288220-AA

Ⓟ

08/2013 Technical data subject to change

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 a

re 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.

ET 200SP distributed I/O system

Product Information, 07/2013, A5E32288220-AA 3

Preface

Scope of the product information

This product information amends the ET 200SP Distributed I/O System System Manual

(http://support.automation.siemens.com/WW/view/en/58649293) to include ET 200SP fail-

safe modules.

Preface

ET 200SP distributed I/O system

4Product Information, 07/2013, A5E32288220-AA

ET 200SP distributed I/O system

Product Information, 07/2013, A5E32288220-AA 5

Table of contents

Preface ................................................................................................................................................... 3

1 Product overview .................................................................................................................................... 7

1.1 What are fail-safe automation systems and fail-safe modules? ....................................................7

1.2 Fault reactions with fail-safe modules..........................................................................................10

2 Application planning.............................................................................................................................. 13

2.1 Forming potential groups with fail-safe modules .........................................................................13

3 Installation ............................................................................................................................................ 15

3.1 Basics...........................................................................................................................................15

4 Connecting ........................................................................................................................................... 17

4.1 Additional rules and provisions for operation of the ET 200SP with fail-safe modules ...............17

4.1.1 Safe functional extra-low voltage (SELV) for fail-safe modules...................................................17

4.1.2 Requirements of sensors and actuators for fail-safe modules ....................................................18

4.1.3 Capacitive crosstalk of digital input/output signals ......................................................................20

5 Configuring ........................................................................................................................................... 21

5.1 Assigning the F-destination address for fail-safe modules ..........................................................21

5.1.1 Assigning the F-destination address............................................................................................21

6 Maintenance ......................................................................................................................................... 23

6.1 Firmware update ..........................................................................................................................23

7 Technical specifications ........................................................................................................................ 25

7.1 Electromagnetic compatibility of fail-safe modules ......................................................................25

7.2 Standards and approvals .............................................................................................................27

8 Accessories/spare parts........................................................................................................................ 29

8.1 Lightning protection and overvoltage protection for fail-safe modules ........................................29

Glossary ............................................................................................................................................... 31

Table of contents

ET 200SP distributed I/O system

6Product Information, 07/2013, A5E32288220-AA

ET 200SP distributed I/O system

Product Information, 07/2013, A5E32288220-AA 7

Product overview

1.1

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-level safety

requirements. F-systems serve to 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.

Fail-safe modules

The key difference between fail-safe modules (F-modules) and standard ET 200SP modules

is that they have an internal two-channel design. The two integrated processors monitor

each other, automatically test the input and output circuits, and switch the F-I/O module to a

safe state in the event of a fault.

The F-CPU communicates with the fail-safe modules via the fail-safe PROFIsafe bus profile.

Fail-safe power modules

, together with the respective BaseUnit, serve the load voltage

supply of the potential group and the safety-oriented tripping of the load voltage for standard

output modules.

Fail-safe digital input modules

detect the signal states of safety-oriented sensors and send

the relevant safety message frames to the F-CPU.

Fail-safe digital output modules

are suitable for safety-related shutdown procedures with

short circuit and cross-circuit protection up to the actuator.

Possible uses of ET 200SP with fail-safe modules

The use of ET 200SP with fail-safe modules allows conventional configurations in safety

engineering to be replaced with PROFNET IO components. This includes the replacement of

switching devices for emergency STOP, protective door monitors, two-hand operation, etc.

ET 200SP fail-safe modules are supported with the STEP 7 Safety Advanced optional

package V12 including HSP 54 or higher.

ET 200SP fail-safe modules are supported with IM155-6PN ST as of firmware V1.1.

Product overview

1.1 What are fail-safe automation systems and fail-safe modules?

ET 200SP distributed I/O system

8Product Information, 07/2013, A5E32288220-AA

Achievable safety classes

Fail-safe modules are equipped with integrated safety functions for safety mode.

The following safety classes can be achieved through appropriate parameterassignment of

the safety functions in STEP 7 Professional V12 SP1 or higher with STEP 7 Safety

Advanced optional package V12 or higher, through a specific combination of fail-safe and

standard modules, and through a specific arrangement and wiring of sensors and actuators:

Safety class in safety mode

According to IEC 61508

According to ISO 13849-1:2006

SIL2

Category 3

(PL) Performance Level d

SIL3

Category 3

(PL) Performance Level e

SIL3

Category 4

(PL) Performance Level e

Use in SIMATIC Safety F-systems

ET 200SP fail-safe modules can be used with the STEP 7 Safety Advanced optional

package, V12 or higher under PROFINET IO, together with an F-CPU.

Product overview

1.1 What are fail-safe automation systems and fail-safe modules?

ET 200SP distributed I/O system

Product Information, 07/2013, A5E32288220-AA 9

SIMATIC Safety F-system with ET 200SP

The following figure shows a sample configuration for a SIMATIC Safety F-system with,

among other things, an ET 200SP on a PROFINET IO. The PROFINET IO lines can be set

up with copper cable, with fiber-optic cable or WLAN.

You will find further information on the Internet at Application planning (Page 13).

Tasks of the fail-safe IO controller (F-CPU) include the exchange of safety-related and non-

safety-related data with fail-safe and standard ET 200SP modules.

Figure 1-1 Fail-safe SIMATIC Safety automation system (sample configuration)

Use in safety mode only

Fail-safe modules can only be used in fail-safe mode. They cannot be used in non-fail-safe

mode In this context, fail-safe mode/non-fail-safe mode refers to the operating mode of the

F-I/O module, which either does or doesn't support safety-related communication via safety

message frames.

Fail-safe modules and non-fail-safe modules can be combined within an ET 200SP.

Product overview

1.2 Fault reactions with fail-safe modules

ET 200SP distributed I/O system

10 Product Information, 07/2013, A5E32288220-AA

1.2

Fault reactions with fail-safe modules

Safe state (safety concept)

The basic principle behind the safety concept is the existence of a safe state for all process

variables.

Note

For digital F

-modules, this safe state is the value "0". This applies to both sensors and

actuators.

Fault reactions and startup of the F-system

The safety function requires that fail-safe values (safe state) be applied to the fail-safe

module instead of process values (

passivation of the fail-safe module

) in the following

situations:

●When the F-system is started up

●If errors are detected during safety-related communication between the F-CPU and the F-

module via the PROFIsafe safety protocol (communication error)

●If F-I/O faults or channel faults are detected (e.g., wire break, discrepancy error)

Detected faults are written to the diagnostic buffer of the F-CPU and communicated to the

safety program in the F-CPU.

F-modules cannot save errors as retentive data. When the system is powered down and

then restarted, any faults still existing are detected again during startup. However, you have

the option of saving faults in your safety program.

WARNING

For channels that you set to "deactivated" in

STEP 7

, no diagnostic response or error

handling is triggered when a channel fault occurs, not even when such a channel is

affected indirectly by a channel group fault ("Channel activated/deactivated" parameter).

Remedying faults in the F-system

To remedy faults in your F-system, follow the procedure described in IEC 61508-1:2010

section 7.15.2.4 and IEC 61508-2:2010 section 7.6.2.1 e.

The following steps must be performed:

1. Diagnostic and repair of the fault

2. Revalidation of the safety function

3. Recording in the service report

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