CD Poles VI

Owning Palette: Dynamic Characteristics VIs

Requires: Control Design and Simulation Module

Returns the model poles. Wire data to the State-Space Model input to determine the polymorphic instance to use or manually select the instance.

CD Poles (State-Space)

	State-Space Model contains a mathematical representation of and information about the system for which this VI returns the poles.
	error in describes error conditions that occur before this node runs. This input provides standard error in functionality.
	Poles returns the locations of the model poles. For multiple-input multiple-output (MIMO) system models, this VI calculates the least-common multiple for all the poles of transfer function or zero-pole-gain elements of the MIMO system matrix. These poles are not necessarily identical to the poles you can obtain by using the Smith-McMillan form.
	error out contains error information. This output provides standard error out functionality.

CD Poles (Transfer Function)

	Transfer Function Model contains a mathematical representation of and information about the system for which this VI returns the poles.
	root finding options specifies the option for root finding. 0 General—Specifies that the Transfer Function Model is regarded as a complex polynomial. The polynomial roots might not be exact real or complex conjugate. 1 Simple Classification—Based on the results of the General option, the roots are divided into two kinds: real (remove the imaginary part) or complex conjugate (average the real parts and imaginary parts respectively). 2 Refinement—Based on the results of the Simple Classification option, the roots are refined again by the Newton method for real roots and the Bairstow method for complex conjugate roots. With this option, the polynomial roots can be more accurate, but the computation might be numerically unstable. 3 Advanced Refinement—Finds the roots more accurately and stably, especially when the polynomial has repeated roots. The resulting roots are exact real or complex conjugate. Due to the computation complexity, this method is time-consuming.
	error in describes error conditions that occur before this node runs. This input provides standard error in functionality.
	Poles returns the locations of the model poles. For multiple-input multiple-output (MIMO) system models, this VI calculates the least-common multiple for all the poles of transfer function or zero-pole-gain elements of the MIMO system matrix. These poles are not necessarily identical to the poles you can obtain by using the Smith-McMillan form.
	error out contains error information. This output provides standard error out functionality.

CD Poles (Zero-Pole-Gain)

	Zero-Pole-Gain Model contains a mathematical representation of and information about the system for which this VI returns the poles.
	error in describes error conditions that occur before this node runs. This input provides standard error in functionality.
	Poles returns the locations of the model poles. For multiple-input multiple-output (MIMO) system models, this VI calculates the least-common multiple for all the poles of transfer function or zero-pole-gain elements of the MIMO system matrix. These poles are not necessarily identical to the poles you can obtain by using the Smith-McMillan form.
	error out contains error information. This output provides standard error out functionality.