CD Parametric Time Response VI

Control Design VI and Function

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CD Parametric Time Response VI

Owning Palette: Time Response VIs

Installed With: Control Design and Simulation Module

Calculates parametric information, such as rise time, peak time, settling time, steady-state gain, overshoot, and peak value of an input model based on a time response you specify. The data type you wire to the State-Space Model or Time Range parameter determines the polymorphic instance to use.

Details  

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

 Place on the block diagram  Find on the Functions palette

CD Parametric Time Response (State-Space Internal)

Type of Response Data specifies whether you want this VI to return the time response data of the model states or model outputs.

0Outputs (default)—Specifies that you want this VI to return the time response data of the model outputs.
1State trajectories— Specifies that you want this VI to return the time response data of the model states.
Type of Analysis specifies the type of time response analysis this VI performs on the model.

0Step Response (default)—Specifies this VI uses a step response to obtain the parametric information.
1Impulse Response—Specifies this VI uses an impulse response to obtain the parametric information.
2Initial Response—Specifies this VI uses an initial response to obtain the parametric information.
State-Space Model contains a mathematical representation of and information about the system of which this VI calculates parametric information.
Time Range contains information about the initial time, final time, and time step.
t0 is the initial time in seconds in the Step Response graph. The default is –1.
dt is the constant interval between successive values in the time vector. The default is –1.
tf is the final time in seconds up to which this VI calculates the step response. The default is –1.
Initial Conditions are the initial values the parametric response uses.
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.
Rise Time Thresholds (%) specifies the lower and upper thresholds that define the rise time this VI returns. By default, the rise time is the time required for the system response to rise from 10% to 90% of the settling point.
Lower specifies the lower limit of the rise time threshold. The default value is 10%.
Upper specifies the upper limit of the rise time threshold. The default value is 90%.
Settling Time Threshold (%) defines the percentage in which the signal must fall to be within range of its steady state value. The default is 1%. Therefore, the settling time is the time required for the signal to fall within a 1% range of its steady state value.
Time Response Graph displays an XY graph containing the time response of the model.
Time Response Parametric Data returns the parametric time response data this VI measures from the Time Response Data.
Rise Time (s) is the time required for the dynamic system response to rise from 10% of its final value to 90% of its final value.
Peak Time (s) is the time required for the dynamic system response to reach the peak value of its first overshoot.
Settling Time (s) is the time required for the response to reach 1% of its final value.
Overshoot is the dynamic system response value that most exceeds unity, expressed as a percent.
Steady-State Gain is the final value of the signal after transient responses decay.
Peak value returns the value at which the maximum absolute value of the time response occurs.
Time Response Data returns the data before this VI parameterizes it. To access the Time Response Data, use the CD Get Time Response Data VI.
Time returns the uniformly-spaced time vector against which this VI plots the impulse, initial, or step response and the state trajectories.
Outputs Data returns data about the time response of the outputs to the inputs. Refer to the Details section for more information about the Outputs Data.
States Data returns data about the time response of the states to the inputs. For transfer function and zero-pole-gain models, this array is empty. Refer to the Details section for more information about the States Data.
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 Parametric Time Response (Transfer Function Internal)

Type of Response Data specifies whether you want this VI to return the time response data of the model states or model outputs.

0Outputs (default)—Specifies that you want this VI to return the time response data of the model outputs.
1State trajectories— Specifies that you want this VI to return the time response data of the model states.
Type of Analysis specifies the type of time response analysis this VI performs on the model.

0Step Response (default)—Specifies this VI uses a step response to obtain the parametric information.
1Impulse Response—Specifies this VI uses an impulse response to obtain the parametric information.
2Initial Response—Specifies this VI uses an initial response to obtain the parametric information.
Transfer Function Model contains a mathematical representation of and information about the system of which this VI calculates parametric information.
Time Range contains information about the initial time, final time, and time step.
t0 is the initial time in seconds in the Step Response graph. The default is –1.
dt is the constant interval between successive values in the time vector. The default is –1.
tf is the final time in seconds up to which this VI calculates the step response. The default is –1.
Initial Conditions are the initial values the parametric response uses.
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.
Rise Time Thresholds (%) specifies the lower and upper thresholds that define the rise time this VI returns. By default, the rise time is the time required for the system response to rise from 10% to 90% of the settling point.
Lower specifies the lower limit of the rise time threshold. The default value is 10%.
Upper specifies the upper limit of the rise time threshold. The default value is 90%.
Settling Time Threshold (%) defines the percentage in which the signal must fall to be within range of its steady state value. The default is 1%. Therefore, the settling time is the time required for the signal to fall within a 1% range of its steady state value.
Time Response Graph displays an XY graph containing the time response of the model.
Time Response Parametric Data returns the parametric time response data this VI measures from the Time Response Data.
Rise Time (s) is the time required for the dynamic system response to rise from 10% of its final value to 90% of its final value.
Peak Time (s) is the time required for the dynamic system response to reach the peak value of its first overshoot.
Settling Time (s) is the time required for the response to reach 1% of its final value.
Overshoot is the dynamic system response value that most exceeds unity, expressed as a percent.
Steady-State Gain is the final value of the signal after transient responses decay.
Peak value returns the value at which the maximum absolute value of the time response occurs.
Time Response Data returns the data before this VI parameterizes it. To access the Time Response Data, use the CD Get Time

Response Data VI.
Time returns the uniformly-spaced time vector against which this VI plots the impulse, initial, or step response and the state trajectories.
Outputs Data returns data about the time response of the outputs to the inputs. Refer to the Details section for more information about the Outputs Data.
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 Parametric Time Response (Zero-Pole-Gain Internal)

Type of Response Data specifies whether you want this VI to return the time response data of the model states or model outputs.

0Outputs (default)—Specifies that you want this VI to return the time response data of the model outputs.
1State trajectories— Specifies that you want this VI to return the time response data of the model states.
Type of Analysis specifies the type of time response analysis this VI performs on the model.

0Step Response (default)—Specifies this VI uses a step response to obtain the parametric information.
1Impulse Response—Specifies this VI uses an impulse response to obtain the parametric information.
2Initial Response—Specifies this VI uses an initial response to obtain the parametric information.
Zero-Pole-Gain Model contains a mathematical representation of and information about the system of which this VI calculates parametric information.
Time Range contains information about the initial time, final time, and time step.
t0 is the initial time in seconds in the Step Response graph. The default is –1.
dt is the constant interval between successive values in the time vector. The default is –1.
tf is the final time in seconds up to which this VI calculates the step response. The default is –1.
Initial Conditions are the initial values the parametric response uses.
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.
Rise Time Thresholds (%) specifies the lower and upper thresholds that define the rise time this VI returns. By default, the rise time is the time required for the system response to rise from 10% to 90% of the settling point.
Lower specifies the lower limit of the rise time threshold. The default value is 10%.
Upper specifies the upper limit of the rise time threshold. The default value is 90%.
Settling Time Threshold (%) defines the percentage in which the signal must fall to be within range of its steady state value. The default is 1%. Therefore, the settling time is the time required for the signal to fall within a 1% range of its steady state value.
Time Response Graph displays an XY graph containing the time response of the model.
Time Response Parametric Data returns the parametric time response data this VI measures from the Time Response Data.
Rise Time (s) is the time required for the dynamic system response to rise from 10% of its final value to 90% of its final value.
Peak Time (s) is the time required for the dynamic system response to reach the peak value of its first overshoot.
Settling Time (s) is the time required for the response to reach 1% of its final value.
Overshoot is the dynamic system response value that most exceeds unity, expressed as a percent.
Steady-State Gain is the final value of the signal after transient responses decay.
Peak value returns the value at which the maximum absolute value of the time response occurs.
Time Response Data returns the data before this VI parameterizes it. To access the Time Response Data, use the CD Get Time

Response Data VI.
Time returns the uniformly-spaced time vector against which this VI plots the impulse, initial, or step response and the state trajectories.
Outputs Data returns data about the time response of the outputs to the inputs. Refer to the Details section for more information about the Outputs Data.
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 Parametric Time Response (State-Space External)

Type of Response Data specifies whether you want this VI to return the time response data of the model states or model outputs.

0Outputs (default)—Specifies that you want this VI to return the time response data of the model outputs.
1State trajectories— Specifies that you want this VI to return the time response data of the model states.
State-Space Model contains a mathematical representation of and information about the system of which this VI calculates parametric information.
Time Response Data specifies the time response data for which this VI calculates the parametric information.
Time specifies the uniformly-spaced time vector.
Outputs Data specifies data about the time response of the outputs to the inputs.
States Data specifies information about the time response of the states to the inputs.
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.
Rise Time Thresholds (%) specifies the lower and upper thresholds that define the rise time this VI returns. By default, the rise time is the time required for the system response to rise from 10% to 90% of the settling point.
Lower specifies the lower limit of the rise time threshold. The default value is 10%.
Upper specifies the upper limit of the rise time threshold. The default value is 90%.
Settling Time Threshold (%) defines the percentage in which the signal must fall to be within range of its steady state value. The default is 1%. Therefore, the settling time is the time required for the signal to fall within a 1% range of its steady state value.
Time Response Parametric Data returns the parametric time response data this VI measures from the Time Response Data.
Rise Time (s) is the time required for the dynamic system response to rise from 10% of its final value to 90% of its final value.
Peak Time (s) is the time required for the dynamic system response to reach the peak value of its first overshoot.
Settling Time (s) is the time required for the response to reach 1% of its final value.
Overshoot is the dynamic system response value that most exceeds unity, expressed as a percent.
Steady-State Gain is the final value of the signal after transient responses decay.
Peak value returns the value at which the maximum absolute value of the time response occurs.
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 Parametric Time Response (Transfer Function External)

Transfer Function Model contains a mathematical representation of and information about the system of which this VI calculates parametric information.
Time Response Data specifies the time response data for which this VI calculates the parametric information.
Time specifies the uniformly-spaced time vector.
Outputs Data specifies data about the time response of the outputs to the inputs.
States Data specifies information about the time response of the states to the inputs.
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.
Rise Time Thresholds (%) specifies the lower and upper thresholds that define the rise time this VI returns. By default, the rise time is the time required for the system response to rise from 10% to 90% of the settling point.
Lower specifies the lower limit of the rise time threshold. The default value is 10%.
Upper specifies the upper limit of the rise time threshold. The default value is 90%.
Settling Time Threshold (%) defines the percentage in which the signal must fall to be within range of its steady state value. The default is 1%. Therefore, the settling time is the time required for the signal to fall within a 1% range of its steady state value.
Time Response Parametric Data returns the parametric time response data this VI measures from the Time Response Data.
Rise Time (s) is the time required for the dynamic system response to rise from 10% of its final value to 90% of its final value.
Peak Time (s) is the time required for the dynamic system response to reach the peak value of its first overshoot.
Settling Time (s) is the time required for the response to reach 1% of its final value.
Overshoot is the dynamic system response value that most exceeds unity, expressed as a percent.
Steady-State Gain is the final value of the signal after transient responses decay.
Peak value returns the value at which the maximum absolute value of the time response occurs.
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 Parametric Time Response (Zero-Pole-Gain External)

Zero-Pole-Gain Model contains a mathematical representation of and information about the system of which this VI calculates parametric information.
Time Response Data specifies the time response data for which this VI calculates the parametric information.
Time specifies the uniformly-spaced time vector.
Outputs Data specifies data about the time response of the outputs to the inputs.
States Data specifies information about the time response of the states to the inputs.
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.
Rise Time Thresholds (%) specifies the lower and upper thresholds that define the rise time this VI returns. By default, the rise time is the time required for the system response to rise from 10% to 90% of the settling point.
Lower specifies the lower limit of the rise time threshold. The default value is 10%.
Upper specifies the upper limit of the rise time threshold. The default value is 90%.
Settling Time Threshold (%) defines the percentage in which the signal must fall to be within range of its steady state value. The default is 1%. Therefore, the settling time is the time required for the signal to fall within a 1% range of its steady state value.
Time Response Parametric Data returns the parametric time response data this VI measures from the Time Response Data.
Rise Time (s) is the time required for the dynamic system response to rise from 10% of its final value to 90% of its final value.
Peak Time (s) is the time required for the dynamic system response to reach the peak value of its first overshoot.
Settling Time (s) is the time required for the response to reach 1% of its final value.
Overshoot is the dynamic system response value that most exceeds unity, expressed as a percent.
Steady-State Gain is the final value of the signal after transient responses decay.
Peak value returns the value at which the maximum absolute value of the time response occurs.
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 Parametric Time Response Details

This VI supports delays when calculating the dynamic characteristics of a system. Refer to the LabVIEW Control Design User Manual for more information about delays.

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