.Buildings.Controls.OBC.CDL.Discrete.UnitDelay

Information

Block that outputs the input signal with a unit delay:

          1
     y = --- * u
          z

that is, the output signal y is the input signal u of the previous sample instant. Before the second sample instant, the output y is identical to parameter y_start.

Revisions

• November 12, 2020, by Michael Wetter:
  Reformulated to remove dependency to Modelica.Units.SI.
  This is for issue 2243.
• October 19, 2020, by Michael Wetter:
  Refactored implementation.
  This is for #2170.
• March 2, 2020, by Michael Wetter:
  Changed icon to display dynamically the output value.
• September 14, 2017, by Michael Wetter:
  Removed parameter startTime to allow model to work also for negative start time without having to change the value of this parameters.
  This is for issue 938.
• January 3, 2017, by Michael Wetter:
  First implementation, based on the implementation of the Modelica Standard Library.