Siemens SIMATIC ET 200S - Block Diagram of the 4 DI 24 VDC High Feature

Digital Electronic Modules
11-26
ET 200S Distributed I/O System
EWA-4NEB 780602402-12
Block diagram
Backplane bus
ET 200S
backplane
bus
circuit
L+
1M
P1
Input
electronics
Short-circuit
protection
Polarity reversal
protection
1
4*
8*
P2
Input
electronics
1
Input
electronics
2
Input
electronics
Input
electronics
5
Input
electronics
Input
electronics
6
Input
electronics
7
3
* 24 VDC only with TM-E15S24-01 and TM-E15S26-A1
Figure 11-7 Block diagram of the 4DI 24 VDC High Feature