Siemens ET 200S - Page 444

Analog Electronic Modules
12-88
Distributed I/O System ET 200S
EWA 4NEB 780 6024-02 07
Block Diagram
Backplane bus
ET 200S
backplane bus
interface
module
ADC
M
ANA
24 V
L+
1M
1
2
5
6
7
3
Current limiting
P1
P2
MUX
Figure 12-11 Block Diagram of the 2AI I 2WIRE High Speed