Siemens PM-E F pm DC24V PROFIsafe Installation And Operating Manual page 148

Et 200s distributed i/o system - fail-safe modules
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Fail-Safe Modules
7.6 EM 4 F-DI/3 F-DO DC24V PROFIsafe digital electronic module
Short-circuit DI0 with DI5
P short-circuit DI0
M short-circuit DI0
Discrepancy error
P-short circuit in sensor
supply
M-short-circuit in sensor
supply or defective
Short-circuit SS with DI0
Supply voltage fault
*: Fault is detected only in case of signal corruption. In other words, the signal read differs from the
sensor signal (discrepancy error). If there is no signal corruption with respect to the sensor signal,
fault detection is not possible and is not required from a safety standpoint.
If the short-circuit test is disabled or cannot be enabled, the wiring between the sensor and
input channel must be short circuit-proof.
148
WARNING
Fault detection if ...
No
Yes
Yes*
Yes*
Yes
Yes
Yes
Yes
Yes
No
Yes
Yes
ET 200S Distributed I/O System - Fail-Safe Modules
Installation and Operating Manual, 08/2008, A5E00103686-07
No
No
No
No
No
Yes
No
No
Yes
No
No
Yes

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