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# KNX\_Write\_DPT\_2x

## `KNX_Write_DPT_2x` (FB)

FUNCTION\_BLOCK KNX\_Write\_DPT\_2x EXTENDS SlaveBasicWr

#### Überblick

Sendefunktion für DPT 2.x (2-Bit Wert).

#### Eingänge

| Eingänge                  | Initialwert | Beschreibung                        |
| ------------------------- | ----------- | ----------------------------------- |
| `xUpdateSetp`             | *FALSE*     | Trigger für Sollwert-Aktualisierung |
| `xValue`                  | -           | Zu sendender Hauptwert (BOOL)       |
| `xPrio`                   | -           | Zu sendender Prioritätswert (BOOL)  |
| `xWriteVisu`              | -           | Trigger für einmaliges Senden       |
| `eDPT_Format`             | -           | DPT 2.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

* `tNextWrite` (TIME): Zeit bis zum nächsten Schreibvorgang
* `xLastBusValue` (BOOL): Letzter empfangener Hauptwert
* `xControlBit` (BOOL): Letzter empfangener Kontrollbit (Priorität)

#### Verwendung

1. Wählen Sie das DPT 2.x Format mit `eDPT_Format`.
2. Setzen Sie den zu sendenden Hauptwert in `xValue` und den Prioritätswert in `xPrio`.
3. Konfigurieren Sie die Sendeoptionen:
   * Für zyklisches Senden: `tTimeUpdateSetp` > T#0S
   * Für ereignisbasiertes Senden: Nutzen Sie `xUpdateSetp` oder `xWriteVisu`
4. Überwachen Sie `xLastBusValue` für den letzten empfangenen Hauptwert.
5. Beachten Sie `xControlBit` für den letzten empfangenen Prioritätswert.

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       | `xValue`                  | `BOOL`          |            |                                                                                                                                                            |                |
| Input       | `xPrio`                   | `BOOL`          |            |                                                                                                                                                            |                |
| Input Const | `xWriteVisu`              | `BOOL`          |            | Einmal Lessen                                                                                                                                              |                |
| Input Const | `eDPT_Format`             | DPT\_2x         |            | Enum DPT\_2x                                                                                                                                               |                |
| 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      | `tNextWrite`              | `TIME`          |            |                                                                                                                                                            |                |
| Output      | `xLastBusValue`           | `BOOL`          |            |                                                                                                                                                            |                |
| Output      | `xControlBit`             | `BOOL`          |            |                                                                                                                                                            |                |


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