Digital Electronic Modules
Block Diagram
backplane bus
1M
P1
L+
P2
Figure 11-6
11-30
ET 200S
interface
module
Block Diagram of the 4DI 24–48 VUC High Feature
Input
electronics
Input
electronics
Input
electronics
Input
electronics
Short-circuit
protection
Reverse
polarity
protection
Distributed I/O System ET 200S
EWA 4NEB 780 6024-02 07
1
2
5
6
3
4
7
8