> 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/time/xpulse.md).

# XPulse

## `XPulse` (FB)

FUNCTION\_BLOCK XPulse

### Kurzbeschreibung

> Erzeugung eines exklusiven Impulses mit einstellbarer Zeitdauer.

### Darstellung

<figure><img src="/files/HqDfi7bhfyp2pqglfgvo" alt=""><figcaption></figcaption></figure>

### Schnittstellen

#### Eingänge

| Name  | Datentyp | Wertebereich | Initialwert | Funktion        |
| ----- | -------- | ------------ | ----------- | --------------- |
| *xIN* | BOOL     |              |             | Eingang         |
| *tPT* | TIME     |              | T#1s        | Impulszeitdauer |

#### Ausgänge

| Name  | Datentyp | Wertebereich | Initialwert | Funktion                       |
| ----- | -------- | ------------ | ----------- | ------------------------------ |
| *xQ*  | BOOL     |              |             | Ausgang                        |
| *tET* | TIME     | 0 … *tPT*    |             | Zeitdifferenz zum Impulsanfang |

#### Sollwerte / Parameter

| Name      | Datentyp | Wertebereich | Initialwert | Funktion                      |
| --------- | -------- | ------------ | ----------- | ----------------------------- |
| **xTest** | BOOL     |              | FALSE       | Simulation des Eingangs *xIN* |

### Funktionsbeschreibung

#### Allgemeines

Dieser Funktionsbaustein dient zur Erzeugung eines Impulses definierter Zeitdauer (*tPT*) nach einer ansteigenden Flanke am Eingang *xIN*.\
Die Erzeugung des Impulses kann unabhängig davon auch durch den Simulationseingang **xTest** (ansteigende Flanke) ausgelöst werden.\
Die Zeitdifferenz zum Impulsanfang wird am Ausgang *tET* (Wertebereich: 0 … *tPT*) angezeigt.

<figure><img src="/files/P4jLlDWXYp0kWsKZlQUK" alt=""><figcaption></figcaption></figure>

### CODESYS

InOut:

| Scope       | Name    | Type   | Initial    |
| ----------- | ------- | ------ | ---------- |
| Input       | `xIN`   | `BOOL` |            |
| Input       | `tPT`   | `TIME` | TIME#1s0ms |
| Input Const | `xTest` | `BOOL` | FALSE      |
| Output      | `xQ`    | `BOOL` |            |
| Output      | `tET`   | `TIME` |            |


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