.Buildings.Controls.OBC.CDL.Logical.Toggle

Information

Block that generates a true output when toggle input u rises from false to true, provided that the clear input clr is false or also became at the same time false. The output remains true until

• the toggle input u rises from false to true again, or
• the clear input clr rises from false to true.

If the clear input clr is true, the output y switches to false (if it was true) and it remains false, regardless of the value of the toggle input u.

At initial time, if clr = false, then the output will be y = u. Otherwise it will be y=false (because the clear input clr is true).

Revisions

• October 13, 2020, by Jianjun Hu:
  Removed the parameter pre_y_start, and made the initial output to be equal to toggle input when the clear input is false.
  This is for Buildings, issue 2177.
• March 9, 2020, by Michael Wetter:
  Simplified implementation, and made model work with OpenModelica.
• April 4, 2019, by Jianjun Hu:
  Corrected implementation that causes wrong output at initial stage. This is for Buildings, issue 1402.
• March 31, 2017, by Jianjun Hu:
  First implementation.