Safety engineering
Safety functions
Safe PROFIsafe connection
1
1.3
1.3.5
1.3-12
EDS94AYAD EN 2.2
1.3.5.3 Description
An unambiguous PROFIsafe target address ensures that a data telegram
reaches the correct node.
The validaddress within the rangebetween 1 and1023 can be setvia the DIP
switch . The address 0 is invalid and causes an error in the module.
DIP switch Labelling
1 2 3 4 5 6 7 8 9 0
Value of the address bit 1 2 4 8 16 32 64 128 256 512
Tab. 1.3-6 Address setting
Note!
The combination ”safety module SM300 from version VA 1 .08
and communication module PROFIBUS from version VB 0.93”
offers the opportunity to avoid the error that occurs when an
address is set to 0. For this purpose, a defined PROFIsafe target
address must be saved in C13897 or 14897 in the PROFIBUS
communication module.
The PROFIsafe data is transmitted in the first s lot of a PROFIBUS data
telegram.
This must be observed for the hardware configuration of t he safety PLC!
PROFIBUS data telegram
Header PROFIsafe data Data Trailer
Slot 1 Slot 2
Addressing
PROFIsafe frame
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