6 Selective monitoring of 24V feeders
Integration of a SITOP 24V power supply in PCS 7
Entry ID: 10948108, V3.2, 01/2019
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Selective monitoring of 24V feeders
Using the SITOP PSE200U selectivity module, you can monitor up to four 24 V
feeders and switch them off individually in the case of a fault. Different versions of
the selectivity module are available each of which has an output current range of
.5…3 or 3…1 .
In the example, we used a module with a common alarm. The signal contact is
executed as a changeover switch, which means that it can signal the "good" and
"bad" states. A remote reset from a central location is also possible.
Figure 6-1
OS Server
OS Client
AS
PSU8200/
PSE202U
SCALANCE
PSE2
0
0
U
Switch
Industrial Ethernet /
PROFINET IO
120/230V AC
DC +24V
DC 24V GND
Signal
ET 200
