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Check that signal falls inside range of amplitudes that varies from time step to time step
Model Verification
The Check Dynamic Range block checks that a test signal falls inside a range of amplitudes at each time step. The width of the range can vary from time step to time step. The input labeled sig is the test signal. The inputs labeled min and max are the lower and upper bounds of the valid range at the current time step. If the verification condition is true, the block does nothing. If not, the block halts the simulation, by default, and displays an error message.
The Check Dynamic Range block and its companion blocks in the Model Verification library are intended to facilitate creation of self-validating models. For example, you can use model verification blocks to test that signals do not exceed specified limits during simulation. When you are satisfied that a model is correct, you can turn error checking off by disabling the verification blocks. You do not have to physically remove them from the model. If you need to modify a model, you can temporarily turn the verification blocks back on to ensure that your changes do not break the model.
The Check Dynamic Range block accepts input signals of any dimensions and of any data type supported by Simulink. All three input signals must have the same dimension and data type. If the inputs are nonscalar, the block checks each element of the input test signal to the corresponding elements of the reference signals.
For a discussion on the data types supported by Simulink, see Data Types Supported by Simulink.
Unchecking this option disables the Check Dynamic Range block, that is, causes the model to behave as if the block did not exist. The Model Verification block enabling setting under Debugging on the Data Validity diagnostics pane of the Configuration Parameters dialog box allows you to enable or disable all model verification blocks in a model, including Check Dynamic Range blocks, regardless of the setting of this option.
An M-expression to be evaluated when the assertion fails.
If checked, this option causes the Check Dynamic Range block to halt the simulation when the block's output is zero and display an error message in the Simulation Diagnostics viewer. Otherwise, the block displays a warning message in the MATLAB Command Window and continues the simulation.
If checked, this option causes the Check Dynamic Range block to output a Boolean signal that is true (1) at each time step if the assertion succeeds and false (0) if the assertion fails. The data type of the output signal is Boolean if you selected the Implement logic signals as boolean data option on the Simulation and code generation optimization pane of the Configuration Parameters dialog box. Otherwise the data type of the output signal is double.
Type of icon used to display this block in a block diagram: either graphic or text. The graphic option displays a graphical representation of the assertion condition on the icon. The text option displays a mathematical expression that represents the assertion condition. If the icon is too small to display the expression, the text icon displays an exclamation point. To see the expression, enlarge the block.
Direct Feedthrough | No |
Sample Time | Inherited from driving block |
Scalar Expansion | No |
Dimensionalized | Yes |
Zero Crossing | No |
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