> For the complete documentation index, see [llms.txt](https://support.powerio.com/hub/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://support.powerio.com/hub/h1.m300/feldbus-protokolle/application.md).

# Application

## Application Mode: Funktionsweise & Nutzen

Die seriellen Ports können den installierten [User-Applications](/hub/applications/available-apps.md) zugeordnet werden. So können beispielsweise die User-Application [CODESYS](/hub/applications/available-apps/codesys.md) oder der [HVAC Cloud Adapter](/hub/applications/available-apps/hvac-cloud-adapter.md) die seriellen Ports verwenden.

#### Auswahl für Application Modus

* Der serielle Port kann einer Application zugeordnet werden, wenn die Application gestoppt ist.
* Wenn die Application läuft, kann der serielle Port nicht verändert werden.
* Die Einstellungen des seriellen Ports, wie Baudrate etc., erfolgen in der gewählten Application.

<figure><img src="/files/YFNspnh87Rr2Qm9AvT6O" alt=""><figcaption><p>Auswahl des seriellen Ports für eine installierte Application</p></figcaption></figure>

#### Beispiel Application Modus

1.) Falls die Application nicht gestoppt ist muss diese unter **Applications** -> **Installed powerIO packages** gestoppt werden.

<figure><img src="/files/C2oStx05Rlf6I7Wovnbz" alt=""><figcaption><p>Stoppen der Application</p></figcaption></figure>

2.) Unter Serial Settings, den jeweiligen Port der Application zuordnen.

<figure><img src="/files/qw4xaQLpjKqiLFVDief0" alt=""><figcaption><p>Serial Port der Application zuweisen</p></figcaption></figure>

3.) Application erneut starten **Applications** -> **Installed powerIO packages**

<figure><img src="/files/1xuXYvGEcc2ZAjX2eg1l" alt=""><figcaption><p>Application starten</p></figcaption></figure>

4.) Port in Application verwenden. Der zugeordnete Port steht in der Application unter dem gleichen Gerätepfad zur Verfügung (z. B. `/dev/ttyPort2`).

<figure><img src="/files/Y0jNyZmAIOfNLokRPKKV" alt=""><figcaption><p>Serial Port 2 in Application HVAC Cloud Adapter</p></figcaption></figure>


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