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Appendix: F-Parameters and iParameters
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B Appendix: F-Parameters and iParameters
B 1 F-Parameters
The values indicated in italics in Table B-1 are preset by the system and cannot be mod-
ified manually.
Table B-1 Overview of the F-Parameters for the module
F-Parameter Default value Description
F_Source_
Address
automatic The parameter uniquely identifies the PROFIsafe source address (controller address).
The address is assigned automatically.
F_Destination_
Address
automatic PROFIsafe destination address (address of the safe device)
The address is assigned automatically. However, the value can be modified.
Make sure that the value set under F_Destination_Address and the value that you
have set via the 10-pos. DIP switch are the same.
Value range: 1 ... 1022
F_WD_Time 150 Monitoring time in the safety module
A valid current safety telegram must arrive from the safe controller within the monitor-
ing time. Otherwise, the safety module enters the safe state.
The selected monitoring time must be sufficiently high for telegram delays to be toler-
ated by the communication, but still ensure a sufficiently fast error response in the
event of an error (e.g., interruption in communication).
Value range: 1 ... 65534, in 1 ms increments
Unit: ms
F_SIL SIL 3 Safety integrity (SIL according to IEC 61508) of the safety module
F_CRC_Length 3-byte CRC This parameter transmits the length of the CRC2 code to be expected in the safety tele-
gram to the safe controller.
F_Block_ID 1 Parameter block type identification
1: the parameter block of the F-Parameters contains the F_iPar_CRC parameter.
F_Par_Version 1 Version number of the F-Parameter block
1: valid for V2 mode
F_iPar_CRC 0 CRC checksum via the iParameters
The value must be greater than 0.
When verifying the safety function, check whether the F_iPar_CRC parameter is
greater than 0 for all devices. If not, check the iParameters and the CRC checksum in
the iParameter and F-Parameter.
WARNING:
Safety functions up to SIL 3 can be achieved with the safety module. The
safety integrity level that can actually be achieved depends on the param-
eterization, the structure of the sensor, and the cable installation (see
“Connection examples for safe outputs” on page 55).