Sign

Output is 1 if input > 0, 0 if input is equal to zero, -1 otherwise.

Collaboration diagram for Sign:

Determines the sign of the input signal. The output is 1 when the input is greater than zero, 0 when the input is equal to zero, and -1 when the input is less than zero.

Author

Benjamin Scholz

Date

05.09.2007 BSC: Second version.

20.07.2011 KGA: Ported to FhSim 2.0.

25.07.2011 KGA: Added documentation.

Example configuration excerpt

<Lib
  LibName   = "fhsim_base"
  SimObject = "Math/Sign"
  Name      = "A"
  PortWidth = "2"
/>
...
<Connection
  A.In = "10,4"
/>

Input Ports

Name	Width	Description
In	<PortWidth>	The input signal

Output Ports

Name	Width	Description
Out	<PortWidth>	The sign of the input signal

Configuration parameters

Name	Width	Description
PortWidth	-	The number of elements in the input and output ports

Initial conditions

There are no initial conditions for this function.

Full example file

<Contents>
  <OBJECTS>
    <Lib
        LibName="base" 
        SimObject="Math/Sign"  
        Name="A" 
    />
    <Lib
        LibName="base"
        SimObject="Math/Sign"
        Name="B"
    />
    <Lib
        LibName="base"
        SimObject="Math/Sign"
        Name="C"
    />
  </OBJECTS>
  
  <INTERCONNECTIONS>
    <Connection
    A.In="100"
    B.In="0"
    C.In="-123"
    />
  </INTERCONNECTIONS>
 
  <INITIALIZATION>
    <InitialCondition
    />
  </INITIALIZATION>
 
  <INTEGRATION>
    <Engine
    IntegratorMethod="2"
    NumCores="1"
    TOutput="0, 1, 30"
    LogStates ="1"  
    stepsize ="0"
    HMax="0.002"
    HMin="0.00000001"
    AbsTol="1e-3" RelTol="1e-3"
    UseRSSNormInsteadOfInfNorm="0"
    FileOutput="objects:all"
    />
  </INTEGRATION>
</Contents>

This SimObject is referred to as Math/Sign