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Siemens IK PI · 2015

AS-Interface

Masters

Masters for SIMATIC ET 200

F-CM AS-i Safety ST for SIMATIC ET 200SP

■

Overview (continued)

Supported BaseUnits

With the recommended combination of the CM AS-i Master ST

and F-CM AS-i Safety ST modules, the CM module is plugged

onto a light type C0 BaseUnit and, directly on the right of it, the

F-CM module is plugged onto a dark type C1 BaseUnit.

The AS-i cable is connected only on the light BaseUnit of the

CM module.

If the F-CM AS-i Safety ST module is not combined with the

CM AS-i Master ST module, but another AS-i master is used

instead, then the F-CM module is plugged onto a light type

C0 BaseUnit. In this case, the AS-i cable is connected on the

light BaseUnit of the F-CM module.

Note on safety:

The use of this product requires suitable protective measures

(e.g. network segmentation for IT security among others) in

order to ensure safe plant operation, see

www.siemens.com/industrialsecurity.

Configuration

The following software is required for configuration of the

F-CM AS-i Safety ST module:

• STEP 7 (classic), V5.5 SP3 HF4 or higher with HSP 2093 and

Distributed Safety V5.4 SP5 or F-Configuration Pack SP11

Configuration and programming are done entirely in the

STEP 7 user interface. No additional configuration software is

needed for commissioning.

Data management – together with all other configuration data of

the SIMATIC – is realized completely in the S7 project.

The input and output channels are assigned to the process im-

age automatically and manual linking via configuration function

blocks is not necessary.

If the F-CM AS-i Safety ST module is replaced, all necessary

settings are automatically imported into the new module.

The F-CM AS-i Safety ST module occupies 16 input bytes and

8 output bytes in the I/O data of the ET 200SP station.

■

Application

Thanks to use of the fail-safe module in the ET 200SP, it is

possible to fulfill the safety-related application requirements in a

manner that is integrated in the overall automation solution.

The safety functions required for fail-safe operation are

integrated in the modules. Communication with the fail-safe

SIMATIC S7 CPUs is realized via PROFIsafe.

The safety application is programmed in the SIMATIC S7 F-CPU

with Distributed Safety. The fail-safe input signals of the ASI-

safe slave modules are read via the

AS-i bus line and are combined with any chosen further signals

in the fail-safe program.

The fail-safe output signals can be output through fail-safe

SIMATIC output modules or also directly via AS-i – with the aid of

fail-safe AS-i output modules, e.g. 3RK1405-1SE15-0AA2

(see page 4/10). No special functions are required for this in the

program.

Configuration examples of AS-Interface networks with CM AS-i Master ST and F-CM AS-i Safety ST for SIMATIC ET 200SP

AS-Interface configuration with SIMATIC AS-i F-Link, consisting of an ET 200SP station with CM AS-i Master ST and F-CM AS-i Safety ST modules

Safety-oriented

processing

Operational

control

Safe control

SIMATIC S7-300F

Safe position switch with door interlock

Field module

Load feeder with safe AS-i outputs

Digital K45 field module

3RA2 load feeder

Safe EMERGENCY-STOP

IC01_00288

AS-Interface / ASIsafe

PROFINET / PROFIsafe

SIMATIC

AS-i F-Link

SIMATIC

AS-i F-Link

AS-Interface / ASIsafeAS-Interface / ASIsafe

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