> 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/plant/global/globalutilities/gvl_global.md).

# GVL\_Global

```
VAR_GLOBAL
   /// Global interface
   stGlobalIf: stGlobalInterface;
   /// request id for verifying the license key
   strRequestID: STRING;
   /// is license valid or not
   xLicenseValid: BOOL;
   /// is checksum valid or not
   xChecksumValid: BOOL;
   /// license key for using the sequence without demo mode
   strLicenseKey: STRING;
END_VAR
```

**2.2.1.4.1. stGlobalInterface**

***

Copy

```
TYPE stGlobalInterface :
STRUCT
   /// output: start up siren
   xStartUpSiren: BOOL;
   /// output: global fault reset
   xFaultReset: BOOL;
   /// output: global auto release
   xRelease: BOOL;
   /// output: lamp test
   xLampTest: BOOL;
   /// output: fatal fault
   xFatalFault: BOOL;
   /// output: gate / fortress fault
   xGateFortressFault: BOOL;
   /// output: warning fault
   xWarningFault: BOOL;
   /// output: flash output default 1Hz
   xFlashOutput: BOOL;
   /// input: global Preset for Startup Delay
   timGlobalPresetDelay: TIME := T#3S;
END_STRUCT
END_TYPE
```

**2.2.1.5. GVL\_Global\_HMI**

Copy

```
VAR_GLOBAL
   /// Hmi interface structure
   stHmiIf: stHmiGlobalInterface;
   /// 0: English [1033] | -1: None
   iHmiLanguageIndex: INT := -1;
END_VAR
```

**2.2.1.5.1. stHmiGlobalInterface**

***

Copy

```
TYPE stHmiGlobalInterface :
STRUCT
   /// global HMI button: lamp test button
   xHmiLampTest: BOOL;
   /// global HMI button: operation automatic or manual switch
   xHmiAutoManMode: BOOL;
   /// global HMI button: automatic release button
   xHmiAutomaticRelease: BOOL;
   /// global HMI button: trip reset button
   xHmiFaultReset: BOOL;
   /// global HMI button: step reset button
   xHmiStepReset: BOOL;
END_STRUCT
END_TYPE
```

**2.2.1.6. GVL\_Global\_Parameters**

Copy

```
VAR_GLOBAL PERSISTENT
   ///<Parameter name>
   <iParameter_name>: <INT>;
   ///<Parameter name>
   <iParameter_name>: <INT>;
END_VAR

VAR_GLOBAL
   /// Empty VAR_GLOBAL | Workaround for PersistentVars limitations
   _placeholder: BOOL;
END_VAR
```

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


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