BECKHOFF EL6930 - Manual (Page 52)

Operation
50 EL6930
4.3.3.3 F_CRC_Length
Length of the checksum in the PROFIsafe telegram; the EL6930 has a 2-byte checksum for PROFIsafe
version 1 and a 3-byte checksum for version 2. This value must be consistent with the parameter
F_PAR_Version.
4.3.3.4 F_PAR_Version
Indicates the version of the PROFIsafe connection. The EL6930 supports PROFIsafe versions 1 and 2.
This value must be consistent with the parameter F_CRC_Length.
4.3.3.5 F_Source_Add
Address of the PROFIsafe host; this is specified by the configuration program.
4.3.3.6 F_Dest_Add
Address of the PROFIsafe device; this is assigned by the user and must be unique in the entire safety
network.
4.3.3.7 F_WD_Time
This parameter sets the watchdog for the safety connection. The value must always be higher than the
cycle time of the fieldbus, since it can take several fieldbus cycles before a PROFIsafe telegram is
dispatched.