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.
7-180
SINUMERIK 840D sl/SINAMICS S120 SINUMERIK Safety Integrated (FBSI sl) – 03.2006 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
© Siemens AG, 2006. All rights reserved
03.06
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