> For the complete documentation index, see [llms.txt](https://infosys.selmotech.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://infosys.selmotech.com/selmo-struktur-und-standard/selmo-technischer-standard-und-struktur/zonen.md).

# Zonen

#### 2.2 Zonendefinition

Zonen bilden die Verbindung zwischen Logik und realem Signal.

| Zonentyps | Beschreibung                                         |
| --------- | ---------------------------------------------------- |
| `Input`   | Ein Sensor, Schalter oder Eingang                    |
| `Output`  | Ein Aktor oder Ausgang (z. B. Ventil, Leuchte)       |
| `In-Out`  | Kombinierter Ausgang mit Rückmeldung                 |
| `Mem`     | Logische Merkerzone – speichert Prozessinformationen |

Jede Zone erhält:

* einen HMI-Text (für Bedieneranzeige)
* eine Adresse (für IO-Mapping)
* Verhalten je Zustand (`0`, `S`, `i`)


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