CD Convert to Transfer Function Model VI

Control Design VI and Function

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CD Convert to Transfer Function Model VI

Owning Palette: Model Conversion VIs

Installed With: Control Design and Simulation Module

Converts a system model to transfer function form. The data type you wire to the State-Space Model input determines the polymorphic instance to use.

Details  

Use the pull-down menu to select an instance of this VI.

 Place on the block diagram  Find on the Functions palette

CD Convert State-Space to Transfer Function Model

State-Space Model contains a mathematical representation of and information about a system this VI converts into an equivalent transfer function form.
Realization Type specifies the type of state-space realization to use.

0minimum (default)—Gives a state-space realization after removing zero-pole cancellations and all states that do not affect the output of the system
1full—Provides a state-space realization without reducing any states
Tolerance is the maximum distance for zero-pole pair cancellation when this VI requests minimum realization. The default is 0.
error in describes error conditions that occur before this VI or function runs. The default is no error. If an error occurred before this VI or function runs, the VI or function passes the error in value to error out. This VI or function runs normally only if no error occurred before this VI or function runs. If an error occurs while this VI or function runs, it runs normally and sets its own error status in error out. Use the Simple Error Handler or General Error Handler VIs to display the description of the error code. Use exception control to treat what is normally an error as no error or to treat a warning as an error. Use error in and error out to check errors and to specify execution order by wiring error out from one node to error in of the next node.
status is TRUE (X) if an error occurred before this VI or function ran or FALSE (checkmark) to indicate a warning or that no error occurred before this VI or function ran. The default is FALSE.
code is the error or warning code. The default is 0. If status is TRUE, code is a nonzero error code. If status is FALSE, code is 0 or a warning code.
source specifies the origin of the error or warning and is, in most cases, the name of the VI or function that produced the error or warning. The default is an empty string.
Transfer Function Model returns the transfer function representation of the input system model. The properties are the same as that of the input model. To access and modify the data in the model, use the Model Information VIs.
error out contains error information. If error in indicates that an error occurred before this VI or function ran, error out contains the same error information. Otherwise, it describes the error status that this VI or function produces. Right-click the error out front panel indicator and select Explain Error from the shortcut menu for more information about the error.
status is TRUE (X) if an error occurred or FALSE (checkmark) to indicate a warning or that no error occurred.
code is the error or warning code. If status is TRUE, code is a nonzero error code. If status is FALSE, code is 0 or a warning code.
source describes the origin of the error or warning and is, in most cases, the name of the VI or function that produced the error or warning.

CD Convert Zero-Pole-Gain to Transfer Function Model

Zero-Pole-Gain Model contains a mathematical representation of and information about a system this VI converts into an equivalent transfer function form.
Realization Type specifies the type of state-space realization to use.

0minimum (default)—Gives a state-space realization after removing zero-pole cancellations and all states that do not affect the output of the system
1full—Provides a state-space realization without reducing any states
Tolerance is the maximum distance for zero-pole pair cancellation when this VI requests minimum realization. The default is 0.
error in describes error conditions that occur before this VI or function runs. The default is no error. If an error occurred before this VI or function runs, the VI or function passes the error in value to error out. This VI or function runs normally only if no error occurred before this VI or function runs. If an error occurs while this VI or function runs, it runs normally and sets its own error status in error out. Use the Simple Error Handler or General Error Handler VIs to display the description of the error code. Use exception control to treat what is normally an error as no error or to treat a warning as an error. Use error in and error out to check errors and to specify execution order by wiring error out from one node to error in of the next node.
status is TRUE (X) if an error occurred before this VI or function ran or FALSE (checkmark) to indicate a warning or that no error occurred before this VI or function ran. The default is FALSE.
code is the error or warning code. The default is 0. If status is TRUE, code is a nonzero error code. If status is FALSE, code is 0 or a warning code.
source specifies the origin of the error or warning and is, in most cases, the name of the VI or function that produced the error or warning. The default is an empty string.
Transfer Function Model returns the transfer function representation of the input system model. The properties are the same as that of the input model. To access and modify the data in the model, use the Model Information VIs.
error out contains error information. If error in indicates that an error occurred before this VI or function ran, error out contains the same error information. Otherwise, it describes the error status that this VI or function produces. Right-click the error out front panel indicator and select Explain Error from the shortcut menu for more information about the error.
status is TRUE (X) if an error occurred or FALSE (checkmark) to indicate a warning or that no error occurred.
code is the error or warning code. If status is TRUE, code is a nonzero error code. If status is FALSE, code is 0 or a warning code.
source describes the origin of the error or warning and is, in most cases, the name of the VI or function that produced the error or warning.

CD Convert to Transfer Function Model Details

This VI supports delays. This VI transfers the delay information from the input model to the resulting model. Refer to the LabVIEW Control Design User Manual for more information about delays.

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