Description of system components   
8.9 Fail-safe digital module (DM-F) 
  SIMOCODE pro 
148  System Manual, 05/2019, A5E40507475002A/RS-AD/004 
8.9  Fail-safe digital module (DM-F) 
Requirements and safety-related functions of the DM-F fail-safe digital modules  
The fail-safe digital module DM-F extends the SIMOCODE pro motor management system 
with fail-safe functions for switching off motors: 
●  DM-F Local fail-safe digital module 
●  DM-F PROFIsafe fail-safe digital module 
These modules conform to the general requirements for emergency stop devices or safety 
circuits described in EN 418 and EN 60204-1 (06.2006). 
With appropriate external circuitry, the following performance levels / safety integrity levels 
can be achieved:  
●  PL e with Category 4 according to ISO 13849-1 or 
●  SIL 3 according to IEC 61508 / 62061. 
Safety engineering and safety-related functions: 
●  These are exclusively restricted to the fail-safe digital modules. 
●  They therefore have no direct impact on existing SIMOCODE pro components and 
concepts. 
LEDs for DM-F device diagnostics: See Chapter Technical data (Page 329) and / or Manual 
SIMOCODE pro fail-safe digital modules 
(https://support.automation.siemens.com/WW/view/en/50564852
). 
"TEST/RESET" DM-F button, setting the DM-F DIP switches, DM-F system interfaces:  
See Manual SIMOCODE pro fail-safe digital modules 
(
https://support.automation.siemens.com/WW/view/en/50564852).