SI Draw Model VI

LabVIEW 2013 System Identification Toolkit Help

Edition Date: June 2013

Part Number: 372458D-01

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Owning Palette: Utilities VIs

Requires: System Identification Toolkit

Displays model equations and the sampling rate in a 2D picture control. You can use this VI to display the equations of a transfer function, state-space, zero-pole-gain, AR, ARX, ARMAX, output-error, Box-Jenkins, or general-linear model in a 2D picture control according to the model representation you wire to the system model input.

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.
Note  You can use a customized system model probe to view model information that flows through system model wires when you debug a block diagram created with the System Identification VIs. Right-click a system model wire and select Custom Probe»SI System Model from the shortcut menu to use the system model probe.
origin specifies the position in the 2D picture control where you want this VI to display the upper-left corner of the equation image. LabVIEW considers the upper-left position of the 2D picture control to be the origin, (0,0), when determining the locations of the left and top coordinates.
left specifies the number of pixels to the right of the origin that LabVIEW places the upper-left corner of the equation image. The default is 10.
top specifies the number of pixels below the origin that LabVIEW places the upper-left corner of the equation image. The default is 8.
error in describes error conditions that occur before this node runs. This input provides standard error in functionality.
display format for TF model specifies the format in which this VI displays transfer function equations. This VI ignores the display format for TF model if the system model is a not transfer function model.

0Descending
1Ascending (default)
2Negative Power
display format for ZPK model specifies the format in which this VI displays zero-pole-gain equations. This VI ignores the display format for ZPK model if the system model is not a zero-pole-gain model.

0Standard (default)
1Engineering
2Time Constant
3Negative Power
model displays the model equations that the system model defines in a 2D picture control.
size returns the size of the area in the picture control this VI uses to draw the model equations.
width returns the width of the area in the picture control this VI uses to draw the model equations.
height returns the height of the area in the picture control this VI uses to draw the model equations.
error out contains error information. This output provides standard error out functionality.

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