> 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-modbus-library/functionblocks/bd_sensors/bd_sensors_dct_531.md).

# BD\_SENSORS\_DCT\_531

## `BD_SENSORS_DCT_531` (FB)

`FUNCTION_BLOCK` BD\_SENSORS\_DCT\_531

### **Darstellung**

<figure><img src="/files/qsyJ2Xea9mD4NfFiHOxD" alt=""><figcaption></figcaption></figure>

InOut:

| Scope       | Name                    | Type               | Initial    | Comment                                                                                                                                                |
| ----------- | ----------------------- | ------------------ | ---------- | ------------------------------------------------------------------------------------------------------------------------------------------------------ |
| Input       | `xEn`                   | `BOOL`             | TRUE       | Freigabe / Sperrung der Kommunikation (TRUE = Freigabe)                                                                                                |
| Input       | `byUnitId`              | `BYTE`             | 0          | Adresse des Geräts                                                                                                                                     |
| Input       | `xUpdateActual`         | `BOOL`             | FALSE      | <p>Aktualisierung der Istwerte (bei jeder ansteigenden Flanke<br>)</p>                                                                                 |
| Input       | `xUpdateInfo`           | `BOOL`             | FALSE      | <p>Aktualisierung der Geräteinformationen (bei jeder<br>ansteigenden Flanke)</p>                                                                       |
| Inout       | `ModbusClient`          | `ModbusClientBase` |            | Client des Geräts                                                                                                                                      |
| Output      | `rPressureUnit`         | `REAL`             |            | Aktueller Druckistwert in der Maßeinheit                                                                                                               |
| Output      | `rPressureMinUnit`      | `REAL`             |            | <p>Minimalwert - Druckistwert in der Maßeinheit (<br>Messwertspeicher)</p>                                                                             |
| Output      | `rPressureMaxUnit`      | `REAL`             |            | <p>Maximalwert - Druckistwert in der Maßeinheit (<br>Messwertspeicher)</p>                                                                             |
| Output      | `rPressureRangeMinUnit` | `REAL`             |            | Minimalwert - Messbereich in der Maßeinheit                                                                                                            |
| Output      | `rPressureRangeMaxUnit` | `REAL`             |            | Maximalwert - Messbereich in der Maßeinheit                                                                                                            |
| Output      | `sUnit`                 | `STRING`           |            | Maßeinheit                                                                                                                                             |
| Output      | `xSensorOffsetInDevice` | `BOOL`             |            | <p>Anzeige, ob der Abgleich der Sensoren im Gerät erfolgen muss<br>(TRUE = Abgleich im Gerät erforderlich, FALSE = Abgleich im<br>FB erforderlich)</p> |
| Output      | `dwSerialNum`           | `DWORD`            |            | Seriennummer des Geräts                                                                                                                                |
| Output      | `xAlarm`                | `BOOL`             | FALSE      | Sammelstörung (TRUE = Störung)                                                                                                                         |
| Output      | `xAlarmCom`             | `BOOL`             | FALSE      | Sammelstörung - Kommunikation (TRUE = Störung)                                                                                                         |
| Output      | `eErrorCodeCom`         | ModbusErrorCode    |            | Fehlercode - Kommunikation (0 = kein Fehler)                                                                                                           |
| Output      | `xBusy`                 | `BOOL`             |            | Kommunikationsanzeige (TRUE = Kommunikation)                                                                                                           |
| Input Const | `rPressureOffset`       | `REAL`             | 0.0        | <p>Konstanter Messwert-Versatz für den übertragenen Druck -<br>Istwert</p>                                                                             |
| Input Const | `diAdrOffset`           | `DINT`             | 0          | <p>Offset zur Berechnung der Modbus-Adressen (aus den Modbus-<br>Registern) (Zulässiger Bereich: -1, 0, +1)</p>                                        |
| Input Const | `tTimeUpdateInfo`       | `TIME`             | TIME#0ms   | <p>Updateintervall für die Vorgänge, die durch den Eingang<br><code>xUpdateInfo</code> beeinflusst werden</p>                                          |
| Input Const | `tTimeUpdateActual`     | `TIME`             | TIME#3s0ms | <p>Updateintervall für die Vorgänge, die durch den Eingang<br><code>xUpdateActual</code> beeinflusst werden</p>                                        |


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