.IDEAS.Controls.Discrete.HysteresisRelease

Information

This block transforms a Real input signal into a Real output signal:

• When the output was false and the input becomes greater than parameter uHigh, the output switches to true.
• When the output was true and the input becomes less than parameter uLow, the output switches to false.
• As long as the input stays between uLow and uHigh, the output remains the same.

This hysteresic block has several additional features:

• When the parameter revert is true, the switching logic changes. This is typically used for heating-like situations, when the output has to be true when the input is below uLow.
• uLow and uHigh can be realinputs instead of fixed parameters
• a release input can be used to activate (release) or deactivate the controller

The initial value of the output is defined via parameter y_start. The default value of this parameter is false.

Revisions

• November 2014, Roel De Coninck
  Switching to real inputs and output
• May 13, 2014, by Damien Picard:
  Add possibility to use parameters as boundary values instead of inputs.