Siemens SIMATIC S7-1500R/H Equipment Manual page 29

Block diagram
The following figure shows the block diagram of the CPU 1517H‑3 PN.
① SIMATIC memory card (X50)
② Display
③ Mode selector RUN/STOP/MRES
④ Electronics
⑤ PROFINET 2-port switch
⑥ Synchronization interface
⑦ Backplane bus connection
(connection to backplane bus not configur­
able)
⑧ Internal supply voltage
⑨ Supply of the 24 V DC supply voltage (X80) MT
PN X1 P1R PROFINET interface X1 port 1
Figure 4-3 Block diagram of the CPU 1517H‑3 PN
CPU 1517H-3 PN (6ES7517-3HP00-0AB0)
Equipment Manual, 11/2022, A5E42011886-AD
PN X1 P2R PROFINET interface X1 port 2
PN X2 P1 PROFINET interface X2 port 1
HSYNC X3 P1 H-Sync interface X3 port 1
HSYNC X4 P1 H-Sync interface X4 port 1
L+ 24 V DC supply voltage
M Ground
R/S RUN/STOP LED (yellow/green)
ER ERROR LED (red)
MAINT LED (yellow)
X1 P1, X1 P2, LED Link TX/RX
X2 P1, X3 P1,
X4 P1
Connecting
4.1 Terminal assignment
29