SmartPLC SafeLine with PROFIBUS slave interface
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3.3.1
Safety architecture
Content
System architecture ............................................................................................................................. 18
Process safety time ............................................................................................................................. 21
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System architecture
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The hardware structure of the safety module of AC412S corresponds to the implementation to DIN EN
ISO 13849-1:2008, IEC 62061:2010 and IEC61508:2010 with a two-channel architecture with
hardware fault tolerance (HFT = 1).
The device achieves the following characteristic safety values:
SIL 3 / SIL CL 3 referred to IEC 61508:2010 and IEC 62061:2010
Performance Level e EN ISO 13849-1:2008)
Category 4 (EN ISO 13849-1:2008)
The reachable characteristic safety values of the automation system implemented with
AC412S depend on the following components:
Safety classification of the peripherals installed at the local I/O interface (
→
Supported device
types
(
Safety classification of the installed safe AS-i slaves