User Manual
AS-Interface   
9.6 Connecting 
  SIRIUS ACT 3SU1 pushbuttons and signaling devices 
180  System Manual, 02/2015, A5E03457306020A/RS-AB/002 
9.6
Connecting 
9.6.1
Connection with AS-Interface modules 
Connection options 
●  Conventional connection with AS-Interface 
●  Safe connection using ASIsafe 
●  With 3SK1, 3RK3 safety relays 
●  Connection to distributed I/O ET 200SP, SIMATIC S7-1500 
Safe communication via ASIsafe 
Safety-related components can be integrated in AS-Interface by means of ASIsafe – up to  
PL e as per ISO 13849-1 or SIL 3 as per IEC 62061. Use the yellow AS-Interface cable to 
make this connection.  
Safe and standard I/O modules are installed and operated together in a single network. 
Safety-related data is transferred over the existing standard bus. 
9.6.2
Connecting the AS-Interface modules for front plate mounting 
When connecting, note that the maximum cable length up to the first mounting support must 
be ≤ 100 mm.  
Maximum current I
max
 = 8 A. 










