Siemens ET 200S Manual page 301

Block Diagram
1M
P1
L+
P2
Figure 11-5
Distributed I/O System ET 200S
EWA 4NEB 780 6024-02 07
* 24 VDC only with TM-E15S24-01 and TM-E15S26-A1
Block Diagram of the 4DI 24 VDC High Feature
Digital Electronic Modules
Input elec- Input elec-
tronics tronics
Input elec- Input elec-
tronics tronics
Input elec- Input elec-
tronics tronics
Input elec- Input elec-
tronics tronics
Short-circuit
protection
Reverse pola-
rity protection
1 1
2
5
6
3
7
4*
8*
11-25