> 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/codesys-hvac/hvac-library/functionblocks/components/firedamper.md).

# FireDamper

## `FireDamper` (FB)

FUNCTION\_BLOCK FireDamper

### Darstellung

<figure><img src="/files/fEAl4HkBFhQ3chWrPWPf" alt=""><figcaption></figcaption></figure>

### Funktionsbeschreibung

#### Allgemeines

Dieser Funktionsbaustein dient zur Eingabe der Bezeichnung einer Brandschutzklappe und der Erzeugung der Meldung *xAlarm.*

#### Sammelstörung *xAlarm*

Die Sammelstörung *xAlarm* wird aktiviert (= TRUE), wenn:\
\
Die Brandschutzklappe ist nicht vollständig geöffnet (*xOpen* = FALSE).\
(Hintergrund: Jede nicht vollständig geöffnete Brandschutzklappe stellt im Normalbetrieb einen fehlerhaften Zustand dar).\
\
In alle übrigen Fällen ist die Sammelstörung *xAlarm* nicht aktiviert (= FALSE).

### CODESYS

InOut:

| Scope       | Name         | Type     | Initial |
| ----------- | ------------ | -------- | ------- |
| Input       | `xOpen`      | `BOOL`   |         |
| Output      | `sLine1`     | `STRING` |         |
| Output      | `sLine2`     | `STRING` |         |
| Output      | `sText`      | `STRING` |         |
| Output      | `xAlarm`     | `BOOL`   |         |
| Input Const | `sEditLine2` | `STRING` | ‘’      |
| Input Const | `sEditLine1` | `STRING` | ‘Raum’  |


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