CD Evaluate at Frequency VI
- Updated2023-03-14
- 4 minute(s) read
CD Evaluate at Frequency VI
Owning Palette: Frequency Response VIs
Requires: Control Design and Simulation Module
Determines the magnitude and phase of the system at the given frequency. Wire data to the State-Space Model input to determine the polymorphic instance to use or manually select the instance.
CD Evaluate at Frequency (State-Space)

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State-Space Model contains a mathematical representation of and information about the system for which this VI determines frequency response. |
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Frequency (rad/s) is the frequency at which this VI evaluates the system to obtain the magnitude and phase. The default is 0. |
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error in describes error conditions that occur before this node runs. This input provides standard error in functionality. |
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Response returns the complex number that this VI obtains by evaluating the system at Frequency (rad/s). |
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Magnitude returns the magnitude of Response in decibels. |
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Phase (deg) returns the phase in degrees of Response. |
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error out contains error information. This output provides standard error out functionality. |
CD Evaluate at Frequency (Transfer Function)

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Transfer Function Model contains a mathematical representation of and information about the system for which this VI determines frequency response. |
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Frequency (rad/s) is the frequency at which this VI evaluates the system to obtain the magnitude and phase. The default is 0. |
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error in describes error conditions that occur before this node runs. This input provides standard error in functionality. |
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Response returns the complex number that this VI obtains by evaluating the system at Frequency (rad/s). |
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Magnitude returns the magnitude of Response in decibels. |
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Phase (deg) returns the phase in degrees of Response. |
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error out contains error information. This output provides standard error out functionality. |
CD Evaluate at Frequency (Zero-Pole-Gain)

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Zero-Pole-Gain Model contains a mathematical representation of and information about the system for which this VI determines frequency response. |
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Frequency (rad/s) is the frequency at which this VI evaluates the system to obtain the magnitude and phase. The default is 0. |
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error in describes error conditions that occur before this node runs. This input provides standard error in functionality. |
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Response returns the complex number that this VI obtains by evaluating the system at Frequency (rad/s). |
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Magnitude returns the magnitude of Response in decibels. |
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Phase (deg) returns the phase in degrees of Response. |
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error out contains error information. This output provides standard error out functionality. |
CD Evaluate at Frequency Details
This VI supports delays. Refer to the LabVIEW Control Design User Manual for more information about delays.





