I checked the system in homeassistant automations. The Lupusec Alarm System has a state which is called "triggered"
However, if the alarm is on armed_away and I trigger the alarm by opening the door it is not reflected in the LupusSec Entity’s state.
Just a quick update.
I have managed to let Lupus trigger the alarm to HA.
To do so, I have created an automation (webhook), which created a new webhook automatically.
I the Smarthome section of Lupus I have created an action URL call in case the alarm has been triggered.