System overview
2.3 How are SIMATIC Safety F-systems structured with ET 200SP?
Distributed I/O system
24
System Manual, 12/2016, A5E03576849-AG
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
Safety classes that can be achieved with ET 200SP in safety mode
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
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.
Summary of Contents for Simantic ET200SP
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