System Structure - Siemens SINUMERIK 840D sl Function Manual

Connecting Sensors/Actuators
7.2 Connecting I/O via PROFIsafe
7.2.2

System structure

Fig. 7-11
Just like Safety Integrated, the PROFIsafe system structure also has a 2–channel
diverse system design based on the PLC and NCK–PROFIsafe layer.
7-200
SINUMERIK 840D sl/SINAMICS S120 SINUMERIK Safety Integrated (FBSI sl) – 05.2008 Edition
SINUMERIK 840D sl
PLC
PLC–SPL
SPL–SGE/SGA
DB18: INSEP/OUTSEP
Safety
Integr. Layer
SI data
PROFIsafe
layer
DP data
DP layer
DP slave ET 200S
User communication
Safety Integrated comm.
PROFIsafe comm.
PROFIBUS–DP comm.
System structure: SI I/O using F modules connected to PROFIBUS–DP
NCK
NCK–SPL
SPL–SGE/SGA
$A_INSE/OUTSE
Safety
Integr. Layer
SI data
PROFIsafe
layer
PROFIBUS–DP
DP slave ET 200S
Standard DP module
F–module
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05.08
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