GRAFCETStep

GRAFCETStep is a QState wrapper to execute functions cyclically while the state/step is active.

Simulates a GRAFCET or SFC-Sequential Function Chart step (according to EN61131-3)

The functions used can be static or bound to an object to use its own parameters and functions.

Dependencies

    sudo apt install qt6-scxml-dev libqt6statemachineqml6 libqt6statemachine6

Constructor

    explicit GRAFCETStep(QString name, int period_ms = 100, const std::function<void()>& N = nullptr, const std::function<void()>& P1 = nullptr, const std::function<void()>& P0 = nullptr);

where:

• name is the name of the step
• period_ms is the period of execution of the function associated with the step.
• N is the function that will be executed cyclically within the step, it shall return void and have no parameters.
• P1 is the function that will be executed when entering the step, it shall return void and have no parameters.
• P0 is the function that will be executed when exiting the step, it shall return void and have no parameters.

Example of construction with a static function

Will cyclically execute the function, but will have no communication with the "outside".

    GRAFCETStep *s1 = new GRAFCETStep("s1", 500, function);
    GRAFCETStep *s2 = new GRAFCETStep("s2", 500, nullptr, nullptr, exit_function);

Example of construction inside an object

Will cyclically execute the object's function, and will have all parameters and functions of the object

    GRAFCETStep *s1 = new GRAFCETStep("s1", 500, std::bind(&GRAFCETExample::func_s1, this), std::bind(&GRAFCETExample::entry_s1, this));
    GRAFCETStep *s2 = new GRAFCETStep("s2", 500, std::bind(&GRAFCETExample::func_s2, this), nullptr, std::bind(&GRAFCETExample::exit_s2, this));