DFD Build Filter from Cascaded Coef VI

Digital Filter Design VIs and Functions

previous page next page

Owning Palette: Utilities VIs

Installed With: Digital Filter Design Toolkit

Converts the IIR Filter Cluster output of the Advanced IIR Filtering VIs into a filter.

Example

Place on the block diagram

Find on the Functions palette

IIR Filter Cluster specifies the cascaded form of the IIR filter coefficients. This cluster is the output from one of the IIR coefficient design VIs: Butterworth Coefficients, Bessel Coefficients, Chebyshev Coefficients, Elliptic Coefficients, or Inv Chebyshev Coefficients.

	filter structure selects IIR second-order or fourth-order filter stages.
	Reverse Coefficients is the reverse coefficients of the IIR cascade filter.
	Forward Coefficients is the forward coefficients of the IIR cascade filter.

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 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.

filter out returns a new filter.

error out contains error information corresponding to the error code. Right-click the error out indicator on the front panel and select Explain Error or Explain Warning from the shortcut menu for more information about the error or warning.

	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.

Example

Refer to the Create IIR Filter from Cascaded Coefficients VI in the labview\examples\Digital Filter Design\Getting Started\Design Filters directory for an example of using the DFD Build Filter from Cascaded Coef VI.

Open example Browse related examples

previous page start next page