Siemens SIMATIC NET SCALANCE S615 Configuration Manual page 55

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.
Options
The device supports the following options for controlling the VPN tunnel via the digital input:
● start on DI
If the event "Digital Input" occurs, the device becomes "active". The device tries to establish
a VPN connection to a remote station (OpenVPN, IPsec, SINEMA RC).
● Wait on DI
If the event "Digital Input" occurs, the device becomes "passive". The device waits for the
partner to initiate the connection.
SCALANCE S615 Web Based Management
Configuration Manual, 11/2019, C79000-G8976-C388-08
Technical basics
3.5 Security functions
55