Block diagram
P1
P2
Figure 11-8
ET 200S Distributed I/O System
EWA-4NEB 780602402-12
ET 200S
backplane bus
interface
connection
1M
L+
Terminal assignment of the 4DI 24--48 VUC High Feature
Digital Electronic Modules
Input
electronics
Input
electronics
Input
electronics
Input
electronics
Short-circuit
protection
Reverse
polarity
protection
1
2
5
6
3
4
7
8
11-31