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F_Parameter
Definition
Allowed values
Default value
F_Check_SeqNr
This parameter defines whether
the consecutive number shall be
included in the CRC2. PROFI-
safe V2-mode [3]: consecutive
number has to be always
included in CRC2 generation
“No Check” = 0
“Check” = 1
“Check” = 1
F_Check_iPar
Manufacturer specific use within
homogeneous systems
“No Check” = 0
“Check” = 1
“No Check” = 0
F_SIL
The different safety functions
using safety-relevant communi-
cation may require different
safety integrity levels. The F-
Devices are able to compare
their own assigned SIL with the
configured SIL (F_SIL). If it is
higher than the SIL of the con-
nected F-Device, the "device
failure" Status Bit is set and a
safe state reaction is triggered
[3].
“SIL1“ = 0
“SIL2“ = 1
“SIL3“ = 2
“NoSIL“ = 3
“SIL3“ = 2
F_CRC_Length
Depending on the length of the
F I/O data (12 or 123 octets) and
the SIL level, a CRC of 2, 3, or 4
octets is required
“3 octet CRC” = 0
“2 octet CRC” = 1
Not supported by
SM560-S:
“4 octet CRC” = 2
“3 octet CRC” = 0
(AC500-S Safety I/O
modules can work only
with „3 octet CRC“)
F_Block_ID
Type identification of parameters “No F_iPar_CRC within
F-Parameter block” = 0
“F_iPar_CRC within F-
Parameter block” = 1
“F_iPar_CRC within F-
Parameter block” = 1
(AC500-S Safety I/O
modules can work only
with this default value)
F_Par_Version
Version number of the F-Param-
eter set
“Valid for V1-mode” = 0
“Valid for V2-mode” = 1
"Valid for V2-mode" = 1
(AC500-S Safety I/O
modules can work only
with this default value)
F_Source_Add
F-Host Source Address. The
F_Source_Add parameter is a
logical address designation that
can be assigned freely but
unambiguously.
F_Source_Add shall not be
equal to F_Dest_Add for the
given F-Device.
[1 – 239]
Addresses [240 - 255]
are reserved for system
functions.
0 is not allowed.
1
(F_Source_Add <>
F_Dest_Add for the
given F-Device)
Configuration and programming
System configuration and programming > Instantiation and configuration of safety modules/Definition of variable names
30.03.2017
AC500-S
186