User Manual
AS-Interface   
9.1 Application areas 
  SIRIUS ACT 3SU1 pushbuttons and signaling devices 
166  System Manual, 02/2015, A5E03457306020A/RS-AB/002 
9.1.2
Application areas for AS-Interface modules for front plate mounting 
The AS-Interface modules for front plate mounting are used to connect an EMERGENCY 
STOP device from the SIRIUS ACT series to the AS-Interface bus system according to ISO 
13850. The modules for front plate mounting are suitable for pushbuttons with front plate 
mounting. 
The AS-Interface modules for front plate mounting have a safe AS-Interface slave 2I and are 
snapped onto the holder from behind. 
The expanded version 2I/1O includes an output for controlling a signaling element with LED. 
Depending on the version, the connection to the AS-Interface bus cable is by means of 
screw terminals, spring-loaded terminals or insulation displacement method. Addressing is 
performed using the AS-Interface connection or the integrated addressing socket.  
With the modules for front plate mounting, applications up to SILCL 3 as per IEC 62061, SIL 
3 as per IEC 61508 and PL e (Cat. 4) as per ISO 13849-1 can be implemented depending 
on the connection of evaluation device and actuators. 










