Simulation Stepping Options

Simulation Stepping Options Overview
Enable stepping back
Maximum number of saved back steps
Interval between stored back steps
Move back/forward by
Pause simulation when time reaches

Simulation Stepping Options Overview

Use the Simulation Stepping Options dialog box to configure the time and the manner of manually stepping through a simulation.

配置

This pane appears when you selectSimulation > Stepping Options.

Set the time at which you wish to pause the simulation
To step backwards through a simulation, selectEnable stepping backand specify the total number and frequency of snapshots.
Specify the increment of steps by which the simulation steps either forward or backwards.
To pause simulation at a particular time, selectPause simulation when time reachescheck box and enter the pause time.

Tips

To start the Simulation Stepping Options dialog box from the Simulink^®toolbar, click.
You can change the value while the simulation is running or paused.

Enable stepping back

Enable stepping back.

Settings

Default:Off

On: Enable stepping back.
Off: Disable stepping back.

Tip

Simulation stepping (forward and back) is available only for Normal and Accelerator modes.

Dependencies

This parameter enables theMaximum number of saved back stepsandInterval between stored back stepsparameters.

Maximum number of saved back steps

Enter the maximum number of snapshots that the software can capture. A snapshot at a particular simulation time captures all the information required to continue a simulation from that point.

Settings

Default:10

Minimum:0

Dependencies

Enable stepping backenables this parameter and theInterval between stored back stepsparameter.

Interval between stored back steps

Enter the number of major time steps to take between capturing simulation snapshots.

Settings

Default:10

Minimum:1

Tip

The number of steps to skip between snapshots. This parameter enables you to save snapshots of simulation state for stepping backward at periodic intervals, such as every three steps forward. This interval is independent of the number of steps taken in either the forward or backward direction. Because taking simulation snapshots affects simulation speed, saving snapshots less often can improve simulation speed.

Dependencies

Enable stepping backenables this parameter and theMaximum number of saved back stepsparameter.

Move back/forward by

Enter the number of major time steps for a single call to step forward or back.

Settings

Default:1

Minimum:1

Tip

The maximum number of steps, or snapshots, to capture while simulating forward. The greater the number, the more memory the simulation occupies and the longer the simulation takes to run.

Pause simulation when time reaches

Pause simulation when time reaches the specified time(s).

Settings

Default:Off

On: Enable stepping back.
Off: Disable stepping back.

Selecting this check box enables the associated text box. In this text box, enter the time at which simulation is to be paused.

Default:5

Minimum:0

This value can be a scalar value, or a vector of times. Specifying a vector of pause times is equivalent to specifying multiple separate pause times for a single simulation.
You can specify pause times as variables in the model or MATLAB^®workspace.
The stepper does not alter the course of the simulation. As a consequence, specifying a value for a pause time does not necessarily pause the simulation at exactly that time. Instead, the simulation pauses at whatever simulation time is closest to the requested pause time, without going below it.

Documentation