Counter Limited

Count up and wrap back to zero after outputting specified upper limit




The Counter Limited block counts up until the specified upper limit is reached. Then the counter wraps back to zero, and restarts counting up. The counter always initializes to zero.

You can specify the upper limit with the Upper limit parameter.

You can specify the sample time with the Sample time parameter. A Sample time of -1 means that the sample time is inherited.

The output is an unsigned integer of 8, 16, or 32 bits, with the smallest number of bits needed to represent the upper limit.

This block does not report wrap on overflow warnings during simulation. To report these warnings, see the Simulink.restoreDiagnostic reference page. The block does report errors due to wrap on overflow.

Data Type Support

The Counter Limited block outputs an unsigned integer.

For more information, see Data Types Supported by Simulink in the Simulink® documentation.


Upper limit

Specify the upper limit.

Sample time

Specify the time interval between samples. To inherit the sample time, set this parameter to -1. See Specify Sample Time in the Simulink documentation.


The following Simulink examples show how to use the Counter Limited block:


Data Types

Boolean | Base Integer | Fixed-Point

Sample Time

Specified in the Sample time parameter

Multidimensional Signals


Variable-Size Signals


Code Generation


Introduced before R2006a

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