CD Get Data from Model VI

Control Design VI and Function

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CD Get Data from Model VI

Owning Palette: Model Information VIs

Installed With: Control Design and Simulation Module

Obtains data that describes the dynamics of the given system model. The data type you wire to the State-Space Model input determines the polymorphic instance to use.

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

 Place on the block diagram  Find on the Functions palette

CD Get Data from Model (State-Space)

State-Space Model contains a mathematical representation of and information about a linear time-invariant (LTI) system for which this VI returns data.
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.
Matrix A returns the system matrix that describes the dynamics of the states of the system.
Matrix B returns the input matrix of the system that relates the inputs to the states.
Matrix C returns the output matrix that relates the outputs to the states.
Matrix D returns the transmission matrix that relates the inputs to the outputs.
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 Get Data from Model (Transfer Function)

Transfer Function Model contains a mathematical representation of and information about a linear time-invariant system for which this VI returns data.
Output (row) specifies the output, or row, number of the transfer function in which this VI retrieves the data. This number is necessary when the model represents a MIMO system. The default value is zero.
Input (column) specifies the index number of the input column of the transfer function in which this VI retrieves the data. This number is necessary when the model represents a MIMO system. The index is zero-based. The default is zero.
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.
Numerator returns the numerator of the transfer function as Output (row) and Input (column) specify.
Denominator returns the denominator of the transfer function as Output (row) and Input (column) specify.
Delay returns the transport time delay between the Output (row) and Input (column) pair.
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 Get Data from Model (Zero-Pole-Gain)

Zero-Pole-Gain Model contains a mathematical representation of and information about a linear time-invariant system for which this VI returns data.
Output (row) specifies the output, or row, number of the transfer function (in zero-pole-gain form) in which this VI returns data. This number is necessary when the model represents a MIMO system. The index is zero-based. The default value is zero.
Input (column) specifies the index number of the input column of the transfer function (in zero-pole-gain form) in which this VI returns data. This number is necessary when the model represents a MIMO system. The index is zero-based. The default is zero.
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.
Zeros returns the zeros of the SISO system as Output (row) and Input (column) specify.
Poles returns the poles of the SISO system as Output (row) and Input (column) specify.
Gain returns the scalar gain of the SISO system as Output (row) and Input (column) specify.
Delay returns the transport time delay between the Output (row) and Input (column) pair.
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.
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