WOLFRAM SYSTEM MODELER
CLevel1bGeneral System Dynamics controlling level with no inflow |
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Diagram
Wolfram Language
In[1]:=
SystemModel["SystemDynamics.Levels.CLevel1b"]
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Information
This is the continuous controlling Level model of the System Dynamics methodology with a single outflow and no inflow. It computes the level by integrating over the negative outflow rate.
Once the level reaches its minimum allowed value, it sends a Boolean signal to its outflow rate element to tell it to stop demanding more stuff.
Parameters (2)
| x0 |
Value: 0 Type: Real Description: Initial condition |
|---|---|
| minLevel |
Value: 0 Type: Real Description: Smallest allowed value of stock |
Outputs (1)
| level |
Type: Real Description: Continuous state variable |
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Connectors (6)
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u1 |
Type: MassInPort Description: Outflow variable |
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y |
Type: MassOutPort Description: State variable |
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y1 |
Type: MassOutPort Description: State variable |
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y2 |
Type: MassOutPort Description: State variable |
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y3 |
Type: MassOutPort Description: State variable |
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s |
Type: BooleanOutput Description: Control signal |
Components (3)
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Integrator1 |
Type: Integrator Description: Output the integral of the input signal with optional reset |
|---|---|---|
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Gain1 |
Type: Gain Description: Output the product of a gain value with the input signal |
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GreaterThreshold1 |
Type: GreaterThreshold Description: Output y is true, if input u is greater than threshold |