This information is part of the Modelica Standard Library maintained by the Modelica Association.

This package provides source components akin to the blocks provided in Modelica.Blocks.Sources, but with the difference that they provide a clocked output signal.

As an effect it is not necessary to use an intermediate Sample block if the output signal is connected to a system that requires a clocked input signal. Therefore, it it can be slightly more convenient to use the blocks provided in this package than to use the blocks offered by Modelica.Blocks.Sources (since one does not need to add an additional Sample block for the transition from a continuous time signal to a clocked signal).