Detect write after write

Diagnostic action to take if model writes to data store twice in current time step

Model Configuration Pane: Diagnostics / Data Validity

Description

The Detect write after write parameter specifies the diagnostic action to take if the model writes to a data store twice in the same time step.

The software overrides this parameter value for model references that simulate in a mode other than normal if the referenced model sets this parameter to a value other than Disable all.

Settings

Use local settings (default) | Disable all | Enable all as warnings | Enable all as errors
Use local settings

With this setting, the diagnostic action is configured individually for each local data store defined by a Data Store Memory block or a Simulink.Signal object in a model workspace.

The software does not issue a diagnostic for global data stores defined by Simulink.Signal objects in the base workspace.

Disable all

The software does not issue a diagnostic if the model writes to any data store twice in the same time step.

Enable all as warnings

The software issues a warning if the model writes to any data store twice in the same time step. The warning appears in the MATLAB® Command Window.

Enable all as errors

The software issues an error and terminates the simulation if the model writes to any data store twice in the same time step. The error appears in a dialog box.

Tips

To identify model references for which the software changes configuration parameter settings, use the Model Advisor.

  1. In the Simulink® Toolstrip, on the Modeling tab, click Model Advisor.

  2. Click OK.

  3. In the Model Advisor, click the arrow to expand the By Task list. Then, click the arrow to expand the Model Referencing list.

  4. Select and run the Check diagnostic settings ignored during accelerated model reference simulation check.

Recommended Settings

ApplicationSetting
DebuggingNo impact
TraceabilityNo impact
EfficiencyNo impact
Safety precautionEnable all as errors

Programmatic Use

Parameter: WriteAfterWriteMsg
Type: string | character vector
Value: "UseLocalSettings" | "DisableAll" | "EnableAllAsWarning" | "EnableAllAsError"
Default: "UseLocalSettings"

Version History

Introduced in R2006a

See Also

| | |

Topics