Siemens SIMATIC ET 200S Manual page 380

Distributed i/o system
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Block diagram
P1
P2
Figure 12-21 Block diagram of the 2RO NO/NC 24–48 VDC/5 A 24–230 VAC/5 A
12-84
Reverse
1M
polarity
protection
L+
1
2 2
2
3
5
6
7
ET 200S Distributed I/O System
EWA-4NEB780602402-09

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