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Product description
4.4
Safety parameters
Key data
Lifetime [a]
Proof test Interval [a]
PFH
D
PFD
MTTF
D
DC
Performance level
Category
HFT
2
Classification element
1)
Special proof tests are not required during the entire service life of the EtherCAT Terminal.
2)
Classification according to IEC 61508-2:2010 (chapter 7.4.4.1.2 and 7.4.4.1.3)
The EtherCAT Terminal can be used for safety-related applications within the meaning of EN 61508:2010 up
to SIL3 and EN ISO 13849-1:2015 up to PL e (Cat 4).
Further information on calculating or estimating the MTTF
TwinSAFE Application Guide or in EN ISO 13849-1:2015, Table K.1.
In terms of safety-related parameters, the Safety-over-EtherCAT communication is already considered with
1% of SIL3 according to the protocol specification.
24
EL2912 and EL2912-2200
20
1
not required
2.88 E-09
2.55 E-05
high
high
PL e
4
1
Type B
value from the PFH
D
Version: 2.0.0
value can be found in the
D
EL2912 and EL2912-2200
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