Setting The Profisafe Parameters - Festo CPX Series Description

3. Commissioning
3.6

Setting the PROFIsafe parameters

PROFIsafe General description
parameters
F_Check_iPar Determines whether the
individual device parameters
(CPX module parameters) are
to be taken into account when
checking the consistency (CRC
calculation) of the F-user data
telegram.
F_Check_SeqNr Determines whether the
sequence number is to be
taken into account when
checking the consistency
(CRC calculation) of the F-user
data telegram.
F_SIL The expected safety integrity
level (SIL) of the input module.
F_CRC_Length Communicates the expected
length of CRC2 key to the
F-Host in the safety telegram.
F_Block_ID Shows if the data record for
the F_iPar_CRC value has been
extended by 4 bytes. The
parameter F_Block_ID has the
value 1 if the parameter
F_iPar_CRC is present,
otherwise it has the value 0.
Festo CPX-F8DE-P-EN en 2005b English
PROFIsafe-specific parameters can be viewed or set with the
configuration device of the F-Host (e.g. HW Config). They are
designated in accordance with the PROFIsafe profile in the
GSDML/GSD file. They can only be accessed by entering the
password in the F-Host.
The function mode is set via the output data on the process
image è Chapter 1.2.3.
For CPX-F8DE-P,
the following applies:
– CPX-F8DE-P does not
provide individual device
parameters.
– CPX-F8DE-P only
supports the V2 mode.
The sequence number is
always included in the
CRC2 test in the V2 mode.
– CPX-F8DE-P supports the
SIL 3 requirement.
– This parameter cannot be
changed with CPX-F8DE-P
because the CRC2 key
always occupies 3 bytes.
– CPX-F8DE-P does not
provide individual device
parameters.
Value
– No check
(cannot be
altered)
– Check
(cannot be
altered)
– SIL 3
– 3 CRC bytes
(cannot be
altered)
– 0
(cannot be
altered)
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