> 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-knx-library/functionblocks/knx_write_dpt_14x.md).

# KNX\_Write\_DPT\_14x

## `KNX_Write_DPT_14x` (FB)

FUNCTION\_BLOCK KNX\_Write\_DPT\_14x EXTENDS SlaveBasicWr

#### Überblick

Sendefunktion für DPT 14.x (4-Byte Gleitkommazahl).

#### Eingänge

| Eingänge                  | Initialwert | Beschreibung                           |
| ------------------------- | ----------- | -------------------------------------- |
| `xUpdateSetp`             | *FALSE*     | Trigger für Sollwert-Aktualisierung    |
| `rValue`                  | -           | Zu sendender REAL-Wert                 |
| `xWriteVisu`              | -           | Trigger für einmaliges Senden          |
| `rDelta`                  | *0.5*       | Schwellwert für Wertänderungserkennung |
| `eDPT_Format`             | -           | DPT 14.x Format-Auswahl                |
| `byAdrGroup`              | *0*         | Gruppenadresse (0-255)                 |
| `byAdrMiddleGroup`        | *0*         | Mittlere Gruppenadresse (0-7)          |
| `byAdrMainGroup`          | *0*         | Hauptgruppenadresse (0-31)             |
| `tTimeUpdateSetp`         | *T#0S*      | Zyklisches Update-Intervall            |
| `tPauseTimeUntilNextSend` | *T#3S*      | Sendepause                             |

#### Ausgänge

* `sUnit` (STRING\[10]): Einheit des Wertes
* `tNextWrite` (TIME): Zeit bis zum nächsten Schreibvorgang
* `rLastBusValue` (REAL): Letzter empfangener Wert

#### Verwendung

1. Wählen Sie das DPT 14.x Format mit `eDPT_Format`.
2. Setzen Sie den zu sendenden Wert in `rValue`.
3. Konfigurieren Sie die Sendeoptionen:
   * Für zyklisches Senden: `tTimeUpdateSetp` > T#0S
   * Für ereignisbasiertes Senden: Nutzen Sie `xUpdateSetp` oder `xWriteVisu`
4. Passen Sie `rDelta` an, um die Sensitivität für Wertänderungen einzustellen.
5. Überwachen Sie `rLastBusValue` für empfangene Werte und `sUnit` für die Einheit.

InOut:

| Scope       | Name                      | Type            | Initial    | Comment                                                                                                                                                    | Inherited from |
| ----------- | ------------------------- | --------------- | ---------- | ---------------------------------------------------------------------------------------------------------------------------------------------------------- | -------------- |
| Input       | `itfKnxConnector`         | `IKnxConnector` |            | <p>IMasterConnector interface input to register/unregister<br>the FB to the List on the Master</p>                                                         | SlaveBasicWr   |
| Input       | `xEnable`                 | `BOOL`          | TRUE       |                                                                                                                                                            | SlaveBasicWr   |
| Output      | `sPhysicallAddressDevice` | `STRING(15)`    |            |                                                                                                                                                            | SlaveBasicWr   |
| Output      | `sGroupAddress`           | `STRING(15)`    |            |                                                                                                                                                            | SlaveBasicWr   |
| Input       | `xUpdateSetp`             | `BOOL`          | FALSE      | <p>Aktualisierung der Sollwerte ( bei jeder ansteigenden Flanke<br>)</p>                                                                                   |                |
| Input       | `rValue`                  | `REAL`          |            |                                                                                                                                                            |                |
| Input Const | `xWriteVisu`              | `BOOL`          |            | Einmal Lessen                                                                                                                                              |                |
| Input Const | `rDelta`                  | `REAL`          | 0.5        | Angabe des Delta Werts (wert >=0)                                                                                                                          |                |
| Input Const | `eDPT_Format`             | DPT\_14x        |            | Enum DPT\_14x                                                                                                                                              |                |
| Input Const | `byAdrGroup`              | `BYTE`          | 0          | Groupaddress                                                                                                                                               |                |
| Input Const | `byAdrMiddleGroup`        | `BYTE`          | 0          | Middle-Group-Address                                                                                                                                       |                |
| Input Const | `byAdrMainGroup`          | `BYTE`          | 0          | Main-Group-Adress                                                                                                                                          |                |
| Input Const | `tTimeUpdateSetp`         | `TIME`          | TIME#0ms   | <p>Updateintervall für die Vorgänge, die durch den Eingang<br>‘xUpdateSetp’ beeinflusst werden 0 = kein automatisches<br>Update, > 0 zyklisches Update</p> |                |
| Input Const | `tPauseTimeUntilNextSend` | `TIME`          | TIME#3s0ms | Pause nach dem Senden 0 = kein pause                                                                                                                       |                |
| Output      | `sUnit`                   | `STRING(10)`    |            |                                                                                                                                                            |                |
| Output      | `tNextWrite`              | `TIME`          |            |                                                                                                                                                            |                |
| Output      | `rLastBusValue`           | `REAL`          |            |                                                                                                                                                            |                |


---

# Agent Instructions
This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com.

## Querying This Documentation
If you need additional information that is not directly available in this page, you can query the documentation by asking a question.

Perform an HTTP GET request on the following URL with the `ask` and `goal` query parameters:

```
GET https://support.powerio.com/hub/codesys-hvac/hvac-knx-library/functionblocks/knx_write_dpt_14x.md?ask=<question>&goal=<user_goal>
```

`ask` is the immediate question: it should be specific, self-contained, and written in natural language.
`goal` is what the user is ultimately trying to achieve, the reason they need the answer. Sharing it helps GitBook give you a better, more relevant answer. A goal is most helpful when it describes the outcome the user wants rather than restating the question. For example, with `ask=how do I create an API token`, a goal like `automate deployments from our CI pipeline` lets GitBook tailor the answer to that use case.

The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.
