> 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-solution/selmo-solution-en/selmo-structure-and-standard/selmo-technical-standard-and-structure/description-selmo-plc-code/hardware-zone-control/less-than-hwzone_name-greater-than/less-than-hwzone_name-greater-than_control/mode-selection-automatic-manual-automatic-mode.md).

# Mode Selection AUTOMATIC / MANUAL Automatic Mode

Automatic is only enabled when all mode key switches relevant to the hardware zone are set to automatic.

Copy

```
// Automatic Mode
   {region "Description Mode Selection AUTOMATIC"}
   (*
   Automatic is only enabled when all mode keyswitches relevant to the hardware zone are selected to automatic.
   *)
   {endregion}
   aAutoModeSelectMatrix[0] := GVL_<HwZone_name>_IOs.xAutomaticModeKeySwitch AND NOT GVL_<HwZone_name>_IOs.xManualModeKeySwitch;

   GVL_<HwZone_name>.stHwzIf.xAutomaticModeOn := TRUE;
   FOR  iIndex := 0 TO 0 DO 
      IF NOT aAutoModeSelectMatrix[iIndex] THEN
         GVL_<HwZone_name>.stHwzIf.xAutomaticModeOn := FALSE;
      EXIT;
      END_IF
   END_FOR
```

<\*\*\*>Variable name, comment and data type are automatically taken from the Studio


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