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Application 1: Sil2/category 3/pld Safety Mode - Siemens PM-E F pm DC24V PROFIsafe Installation And Operating Manual

Et 200s distributed i/o system - fail-safe modules.
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7.5.6

Application 1: SIL2/Category 3/PLd safety mode

Sensor supply
The EM 4/8 F-DI DC24V PROFIsafe provides sensor supply Vs1 for Inputs 0 to 3 and sensor
supply Vs2 for Inputs 4 to 7. The sensor supply can be powered internally or externally.
Wiring Diagram for Application 1 – Connecting One Sensor to One Channel
One sensor is connected to one channel (1oo1 evaluation) for each process signal.
The wiring is carried out on the appropriate terminal module.
Figure 7-19
Figure 7-20
To achieve SIL2/Category 3/PLd using this wiring, you must use a suitably qualified sensor.
ET 200S Distributed I/O System - Fail-Safe Modules
Installation and Operating Manual, 08/2008, A5E00103686-07
Wiring diagram EM 4/8 F-DI DC24V PROFIsafe - one sensor connected via one
channel, internal sensor supply
Wiring diagram EM 4/8 F-DI DC24V PROFIsafe - one sensor connected via one
channel, internal sensor supply
WARNING
7.5 4/8 F-DI DC24V PROFIsafe Digital Electronic Module
Fail-Safe Modules
115

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