Siemens Simantic ET200SP System Manual page 24

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System overview
2.3 How are SIMATIC Safety F-systems structured with ET 200SP?
Achievable safety classes
The fail-safe modules are equipped with integrated safety functions for safety mode.
You can achieve the safety classes of the table below:
● With the appropriate parameter assignment of the safety functions in STEP 7
● With a specific combination of fail-safe and non-fail-safe I/O modules
● With a special arrangement and wiring of the sensors and actuators
Table 2- 1
Additional information
You will find the use cases and wiring for the relevant safety class in the manuals of the fail-
safe I/Os and the fail-safe motor starters.
24
Safety classes that can be achieved with ET 200SP in safety mode
According to IEC 61508
SIL2
SIL3
SIL3
Safety class in safety mode
According to ISO 13849-1:2006
Category 3
Category 3
Category 4
(PL) Performance Level d
(PL) Performance Level e
(PL) Performance Level e
Distributed I/O system
System Manual, 12/2016, A5E03576849-AG

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