LimiterLimit the range of a signal 
This information is part of the Modelica Standard Library maintained by the Modelica Association.
The Limiter block passes its input signal as output signal as long as the input is within the specified upper and lower limits. If this is not the case, the corresponding limits are passed as output.
The parameter homotopyType
in the Advanced tab specifies the
simplified behaviour if homotopybased initialization is used:
NoHomotopy
: the actual expression with limits is usedLinear
: a linear behaviour y = u is assumed (default option)UpperLimit
: it is assumed that the output is stuck at the upper limit u = uMaxLowerLimit
: it is assumed that the output is stuck at the lower limit u = uMinIf it is known a priori in which region the input signal will be located, this option can help a lot by removing one strong nonlinearity from the initialization problem.
uMax 
Value: Type: Real Description: Upper limits of input signals 

uMin 
Value: uMax Type: Real Description: Lower limits of input signals 
strict 
Value: false Type: Boolean Description: = true, if strict limits with noEvent(..) 
homotopyType 
Value: Modelica.Blocks.Types.LimiterHomotopy.Linear Type: LimiterHomotopy Description: Simplified model for homotopybased initialization 
limitsAtInit 
Value: true Type: Boolean Description: Has no longer an effect and is only kept for backwards compatibility (the implementation uses now the homotopy operator) 
u 
Type: RealInput Description: Connector of Real input signal 


y 
Type: RealOutput Description: Connector of Real output signal 
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