Technical basics 
  3.8 Security functions 
SCALANCE SC-600 Web Based Management (WBM) 
Configuration Manual, 10/2021, C79000-G8976-C475-03 
65 
The device attempts to establish a connection to a 
partner when necessary. The receipt of requests for 
VPN connection establishment is also possible. 
For the configured local and remote subnets, an entry 
is created in the routing table. If a node attempts to 
send data packets via the VPN tunnel from one of the 
networks, the VPN connection is established. The 
settable timeout has the effect that after this time 
without any further data packets the VPN tunnel is 
Connection establishment is controlled via the digital 
input (DI). 
The device adopts the settings of the SINEMA RC 
server. You configure the settings on the SINEMA RC 
Server in "Remote Connections > Devices". You can 
find additional information on this topic in the 
operating instructions "SINEMA RC Server". 
The device establishes a VPN connection to the 
SINEMA RC Server. The VPN tunnel is established 
permanently 
Digital input (DI) 
The establishment of the VPN tunnel can also be controlled via the digital input, e.g. 
using a button. When the button is closed, voltage is applied to the digital input and the 
LED of the digital input lights up. The lit LED indicates that signal 1 (TRUE / HIGH) is 
applied. Signal 1 triggers an event on the device with which the establishment of the 
VPN tunnel is controlled. You will find information on connecting and the maximum 
current load in the operating instructions of the devices.  
 
Requirement 
•  In "System > Events > Configuration" for the "Digital Input" event "VPN Tunnel" is 
activated. 
If this setting is not activated, the event is not passed on to the VPN connection.