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3.1
Views of the CPU
Below, you can find information about the operating and display elements of the module.
Arrangement of the CPU elements
①
②
③
④
⑤
⑥
⑦
⑧
⑨
CPU 4168-H
Equipment Manual, 11/2022, A5E51584364-AA
Front cover
LED displays (Page 18)
Reset button (RES) (Page 18)
Slot for SIMATIC Memory Card (SMC) (Page 19) - (Preparation for function extension)
PN/IE interfaces X1 and X2 (PROFINET IO/Industrial Ethernet) (Page 19)
System Expansion Card (SEC) (Page 20) - Slot on the left side of the CPU
Slots for synchronization submodules - (preparation for redundant controller)
PROFIBUS interface X5 (PROFIBUS DP) (Page 21)
2D matrix code (Page 9)
3
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