Address Assignment and Installation 
  3.2 Assignment of the PROFIsafe address 
ET 200S Distributed I/O System - Fail-Safe Modules 
Installation and Operating Manual, 08/2008, A5E00103686-07 
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3.2  Assignment of the PROFIsafe address 
PROFIsafe address 
Every fail-safe module has an own PROFIsafe address. Before installing fail-safe modules, 
you must set the PROFIsafe address on each F-module. 
PROFIsafe Address Assignment 
The PROFIsafe addresses (F_source_address, F_destination_address) are assigned 
automatically when you configure the fail-safe modules in 
STEP 7
. 
You can view the F_destination_address in binary format in 
HW Config
 in the Object 
properties of the fail-safe modules in the "DIP switch setting" parameter. You read the 
PROFIsafe address from the parameter assignment dialog box and set it on the fail-safe 
module using the address switch. 
You can edit the configured F_destination_address in 
HW Config
. To prevent addressing 
errors, however, we recommend that you use the automatically assigned 
F_destination_address. 
Address Switch for Setting PROFIsafe Addresses 
The address switch (10-pin DIP switch) is located on the left-hand side of every fail-safe 
module. Use this address switch to set the PROFIsafe address (F_destination_address) of 
the F-module.  
 
 
Note 
Fail-safe modules in ET 200S can only be operated in safety mode. 
 
Setting the Address Switch 
Before installing the F-module, ensure that the address switch is set correctly. 
Valid range of the PROFIsafe addresses: 1 to 1022. The figure below shows an example of 
an address switch setting. 
21
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Figure 3-1  Example for Setting the Address Switch (DIP Switch)