Applications Of The F-I/O Module; Applications Of The Electronic Module - Siemens SIMATIC ET 200SP HA Equipment Manual

Applications of the F-I/O module

6.1

Applications of the electronic module

Selecting the application
The diagram below supports you in selecting the application that suits your fail-safe
requirements. In the following sections, you will learn how to wire the F-I/O module for each
application, which specific parameters you need to set in STEP 7 and which errors are detected.
SIL3/Cat.3/PLd
See case
Figure 6-1
IO redundancy
All application cases can also be set up with IO redundancy to increase availability.
Achievable safety class
The achievable safety class depends on the sensor quality and the proof-test interval according
to the IEC standard 61508:2010. If the sensor quality is not as high as required by the required
safety class, the sensor must be used redundantly, have a 2-channel connection and 2-channel
evaluation.
(FDIW-003)
F-DI 16x24VDC HA
Equipment Manual, 08/2021, A5E45647528-AD
Required
Safety class?
SIL3/Cat.3/PLe
Applications 1 to 3
1 2
See case
1 2
Selecting the application ‑ Digital input module F-DI 16x24VDC HA
WARNING
SIL3/Cat.4/PLe
3
See cases
3.1
3.2
6
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