Hit Crossing
Purpose
Detect when signal reaches or crosses given value
Library
Control / Discontinuous
Description
The Hit Crossing block detects when the input signal reaches or crosses a value in the specified direction. If a variable-step solver is used, a simulation step is forced at the time when the crossing occurs. The output signal is 1 for one simulation time step when a crossing occurs, 0 otherwise.
Parameters
- Hit crossing offset
The offset that the input signal has to reach or cross.
- Hit crossing direction
The value
risingcauses hit crossings only when the input signal is rising. Iffallingis chosen, only hit crossings for a falling input signal are detected. The settingeithercauses hit crossing for rising and falling signals to be detected.- Threshold
The threshold value used for the switch criteria.
- Show output port
The output terminal of the Hit Crossing block will be hidden if the parameter is set to
off. This setting only makes sense to force a simulation step while using a variable-step solver.
Probe Signals
- Input
The block input signal.
- Crossing signal
Outputs
1for one simulation time step when a crossing occurs,0otherwise. This probe signal is identical to the output signal.