Step switch

The described widget is suitable for displaying a step switch in the app. The various configuration options are described below. In the figure all available features of the widget are active.

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' := 'Stepper'}
stStepperWidgetSample : ST_StepperWidgetSample;

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: Stepper motor.

TYPE ST_PlugWidgetSample :
STRUCT
    sDisplayName    : STRING := '';
    nError          : USINT;
    bBack           : BOOL;
    bForward        : BOOL;
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.
nError	USINT	Determines whether the widget is in an error state. 0 - No error 1 - Warning 2 - Error 3 - Critical error	Between icon and display name of the widget.
bBack	BOOL	Switches the BOOL for "back". The BOOL must be reset to FALSE by application in the PLC.	Left button.
bForward	BOOL	Switches the BOOL for "before". The BOOL must be reset to FALSE by application in the PLC.	Right button.