Ventilation
The described widget is suitable for displaying a ventilation in the app. The various configuration options are described below. In the figure all available features of the widget are active.
![Ventilation 1:](Images/png/9007211960636811__Web.png)
The widget is transferred as a substructure in the overall structure of the SendData() method. To build the widget, various PLC attributes are used when declaring the structure.
{attribute 'iot.ReadOnly' := 'false'}
{attribute 'iot.DisplayName' := 'Name for Widget'}
{attribute 'iot.WidgetType' := 'Ventilation'}
{attribute 'iot.VentilationValueRequestVisible' := 'true'}
{attribute 'iot.VentilationSliderVisible' := 'true'}
{attribute 'iot.VentilationModeVisible' := 'true'}
{attribute 'iot.VentilationModeChangeable' := 'true'}
stVentilationWidgetSample : ST_VentilationWidgetSample;
Attribute | Data type | Description |
---|---|---|
iot.ReadOnly | BOOL | Determines whether the widget on the app side gets only read access (TRUE) or also additional write access to the PLC (FALSE). |
iot.DisplayName | STRING | The display name of the widget in the app. This will be overwritten by sDisplayName as soon as sDisplayName is not an empty string. |
iot.WidgetType | STRING | Type specification for the widget, in this case: Ventilation. |
iot.VentilationValueRequestVisible | BOOL | Determines whether the requested air value (CO2 concentration) is displayed (TRUE) or not (FALSE). |
iot.VentilationSliderVisible | BOOL | Determines whether the slider is displayed (TRUE) or not (FALSE). |
iot.VentilationModeVisible | BOOL | Determines whether the mode is displayed (TRUE) or not (FALSE). |
iot.VentilationModeChangeable | BOOL | Determines whether the mode is adjustable (TRUE) or not (FALSE). |
TYPE ST_VentilationWidgetSample :
STRUCT
sDisplayName : STRING := '';
bOn : BOOL;
{attribute 'iot.Unit' := 'ppm'}
{attribute 'iot.MinValue' := '400'}
{attribute 'iot.MaxValue' := '1400'}
nValue : INT;
nValueRequest : INT;
sMode : STRING := 'Automatic';
aModes : ARRAY[0..1] OF STRING := ['Manual', 'Automatic'];
END_STRUCT
END_TYPE
Attribute | Data type | Description | Display in widget |
---|---|---|---|
sDisplayName | STRING | Determines the display name of the widget and overwrites the PLC attribute 'iot.DisplayName'. | Display text of the widget. |
bOn | BOOL | Switches the ventilation on (TRUE) or off (FALSE). | Toggle switch top right. |
iot.Unit | STRING | Unit of air value (of CO2 concentration). | Unit behind both numerical values. |
iot.MinValue | INT | Lower limit of the air value (the CO2 concentration). | On the left side under the slider. |
iot.MaxValue | INT | Upper limit of the air value (of the CO2 concentration). | On the right side under the slider. |
nValue | INT | Current air value (CO2 concentration). | The number to the left of the arrow. |
nValueRequest | INT | Requested air value (CO2 concentration) via the slider. | The number requested via the slider is subsequently displayed on the right side of the arrow. |
sMode | STRING | Mode of ventilation. | The currently displayed mode. |
aModes | ARRAY [0..n] OF STRING | Array of the different modes that can be set by the user. | By pressing on the current mode, the adjustable modes can be displayed. |