# Event Control

> Symcon documentation · English · generated on 2026-09-26  
> Index: https://www.symcon.de/en/llms.txt

Source: https://www.symcon.de/en/service/documentation/module-reference/core-instances/event-control/

This module allows the user to react to certain events in IP-Symcon and to start a script. It is created automatically and is available to the user at any time. It can be found in the object tree at the following location:

Core Instances -> Events

![Configuration Page Event Control](https://www.symcon.de/media/pages/service/dokumentation/modulreferenz/kern-instanzen/event-control/cec4347122-1790424938/eventcontrol-config.png)

The following events are available:

| Event                                          | Description                                                                                                                                                                                                                                                                                                |
| ---------------------------------------------- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| At startup <br> (start-script)                 | After IP-Symcon has started, this event is called. At this point in time, all interfaces should already be available and all devices should be able to be switched. The following [system variables](../concepts/automations.md) are available within the start-script.                   |
| When shutting down <br> (shutdown-script)      | This event is called just before IP-Symcon shuts down. At this point, all devices should still be switchable. The following [system variables](../concepts/automations.md) are available within the shutdown script.                                                                     |
| Profile border crossing <br> (watchdog-script) | This event is called as soon as a variable (integer/float only) comes outside the limit range of the associated variable profile. A variable must have a profile to be monitored. The following [system variables](../concepts/automations.md) are available within the watchdog script. |
| On status update <br> (status event)           | When the status of an instance updates, a specified script can act on that update. The following [system variables](../concepts/automations.md) are available within the status event script.                                                                                         |

> **Note:** This module should not be deleted.
> If it is deleted, it will be recreated on the next start.