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 # Always

 Last update: 17.07.2025 

Returns true while the input property has never been false.

The following figure shows the output prop for the input p:

![Always](/sites/default/files/git_ansys/scade_one_library_2024_r2_18_07_24/check__always_00.png)

## Interface

NameKindTypeCommentpIboolInput propertypropOboolOutput property**Constraint**: The ratio period / timeSample must be greater than 2.

**Parent topic:**[Check](../../libraries/check/check.md)