System overview 
  1.5 System properties 
SIRIUS Innovations 
System Manual, 01/2011, A8E56203870002-03 
37 
1.5.10  Communication 
SIRIUS switching devices can be connected to higher-level control systems using 
conventional wiring, but also by means of intelligent wiring and a fieldbus: 
●  IO-Link 
●  AS-Interface 
SIRIUS switching devices are linked into the Siemens Totally Integrated Automation concept 
via function modules. Totally Integrated Automation offers the user uniformity in terms of 
configuration, programming, data storage, and communication. 
SIRIUS switching devices are connected to the automation level via AS-Interface or IO-Link, 
without any additional wiring. These interfaces ensure that information about the switch 
position and the readiness of the feeder for operation is transferred, and that contactor 
control is implemented. In addition to these three items of information relating to feeders, IO-
Link also transfers diagnostics data. 
SPS
SPS
5HDG\
'LDJQRVWLFV
$FWXDWLRQ
)HHGEDFNRI
VZLWFKLQJVWDWXV
 
Figure 1-9  Communication via AS-Interface or IO-Link