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Owning Palette: System Identification VIs
Requires: System Identification Toolkit
Converts a model you created in the LabVIEW System Identification Toolkit into a transfer function, zeropolegain, or statespace model that you can use with the LabVIEW Control Design and Simulation Module. You must manually select the polymorphic instance to use.
Use the pulldown menu to select an instance of this VI.
realization type specifies the type of statespace realization to use.


system model contains information about the model structure, nominal or estimated parameters, identification result, and so on. Use the Model Management VIs to retrieve the information system model contains.


measured only? specifies whether this VI regards the noise stimulus as an input of the resulting system model. If measured only? is TRUE, this VI ignores the disturbance e(t) in the conversion. If measured only? is FALSE, this VI treats e(t) as an input of the system model. The default is TRUE.  
error in describes error conditions that occur before this node runs. This input provides standard error in functionality.  
tolerance determines zeropole cancellations. If the difference between the location of a pole and a zero is within the tolerance, this VI removes the zeropole pair. You can visually inspect the location difference in the polezero plot. The default is 1E12.  
statespace model returns the statespace representation of the system model.
 
error out contains error information. This output provides standard error out functionality. 
realization type specifies the type of statespace realization to use.


system model contains information about the model structure, nominal or estimated parameters, identification result, and so on. Use the Model Management VIs to retrieve the information system model contains.


measured only? specifies whether this VI regards the noise stimulus as an input of the resulting system model. If measured only? is TRUE, this VI ignores the disturbance e(t) in the conversion. If measured only? is FALSE, this VI treats e(t) as an input of the system model. The default is TRUE.  
error in describes error conditions that occur before this node runs. This input provides standard error in functionality.  
tolerance determines zeropole cancellations. If the difference between the location of a pole and a zero is within the tolerance, this VI removes the zeropole pair. You can visually inspect the location difference in the polezero plot. The default is 1E12.  
transfer function model returns the transfer function representation of the system model.
 
error out contains error information. This output provides standard error out functionality. 
realization type specifies the type of statespace realization to use.


system model contains information about the model structure, nominal or estimated parameters, identification result, and so on. Use the Model Management VIs to retrieve the information system model contains.


measured only? specifies whether this VI regards the noise stimulus as an input of the resulting system model. If measured only? is TRUE, this VI ignores the disturbance e(t) in the conversion. If measured only? is FALSE, this VI treats e(t) as an input of the system model. The default is TRUE.  
error in describes error conditions that occur before this node runs. This input provides standard error in functionality.  
tolerance determines zeropole cancellations. If the difference between the location of a pole and a zero is within the tolerance, this VI removes the zeropole pair. You can visually inspect the location difference in the polezero plot. The default is 1E12.  
zeropolegain model returns the zeropolegain representation(s) of the system model.
 
error out contains error information. This output provides standard error out functionality. 
By default, the statespace model that the Control Design and Simulation Module uses does not include the disturbance e(t) of the system. However, the models estimated by the System Identification Toolkit include e(t). You can specify whether to ignore e(t) in the conversion by setting the value of measured only?.
Refer to the Model Conversion VI in the labview\examples\System Identification\Getting Started\General.llb for an example of using the SI Convert to Models of CDT VI.