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Performs limit testing on waveforms, spectra, XY data, identified peaks, or scalar measurements. You can wire output values to a graph to view the limits, signal, and failures. You can use this polymorphic VI to perform limit testing of a waveform, a waveform with scalar limits, a spectrum, a spectrum with scalar limits, XY data, XY data with scalar limits, peaks, peaks with scalar limits, or a scalar value. The data type you wire to the signal in input determines the polymorphic instance to use.

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

Select an instance SVL Limit Testing (waveform)SVL Limit Testing (waveform) (scalar limits)SVL Limit Testing (cluster of x0, dx, array)SVL Limit Testing (cluster of x0, dx, array) (scalar limits)SVL Limit Testing (XY)SVL Limit Testing (XY) (scalar limits)SVL Limit Testing (peaks)SVL Limit Testing (peaks) (scalar limits)SVL Limit Testing (scalar)

SVL Limit Testing (waveform)

	signal in contains the waveform to test to make sure it lies in the envelope bounded by the upper and lower limits.
	upper limit defines the upper boundary of the envelope. x0 specifies the minimum value of the x-axis. dx is the x-axis interval between points in the input data. Y contains the y-axis values for the limit.
	lower limit defines the lower boundary of the envelope. x0 specifies the minimum value of the x-axis. dx is the x-axis interval between points in the input data. Y contains the y-axis values for the limit.
	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. Refer to Controlling Error Notification 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.
	test passed? indicates the result of limit mask testing. If TRUE, the signal is less than or equal to upper limit and greater than or equal to lower limit and the limit testing passed. If FALSE, the limit testing did not pass.
	test results contains the results of the limit testing at each data point. The VI returns TRUE if the data point is less than or equal to upper limit and greater than or equal to lower limit.
	output values contains signal in, upper limit, lower limit, and the failures. You can wire this output to a graph to view the values. The first element in the array is signal in. The x0 and dx values in this waveform are changed so that it can be easily plotted with the upper and lower limits. The second element in the array is the failure waveform. The failure waveform contains NaN at points where the limit test passes and contains the input signal where the limit test fails. The third and fourth elements of the array are upper limit and lower limit, respectively.
	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.

SVL Limit Testing (waveform) (scalar limits)

	signal in contains the waveform to test to make sure it lies in the envelope bounded by the upper and lower limits.
	upper limit specifies the upper boundary of the envelope as a single scalar value.
	lower limit specifies the lower boundary of the envelope as a single scalar value.
	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. Refer to Controlling Error Notification 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.
	test passed? indicates the result of limit mask testing. If TRUE, the signal is less than or equal to upper limit and greater than or equal to lower limit and the limit testing passed. If FALSE, the limit testing did not pass.
	test results contains the results of the limit testing at each data point. The VI returns TRUE if the data point is less than or equal to upper limit and greater than or equal to lower limit.
	output values contains signal in, upper limit, lower limit, and the failures. You can wire this output to a graph to view the values. The first element in the array is signal in. The second element in the array is the failure waveform. The failure waveform contains NaN at points where the limit test passes and contains the input signal where the limit test fails. The third and fourth elements of the array are upper limit and lower limit, respectively.
	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.

SVL Limit Testing (cluster of x0, dx, array)

	signal in contains the signal to test to make sure it lies in the envelope bounded by the upper and lower limits x0 specifies the minimum value of the x-axis. dx is the x-axis interval between points in the input data. array contains the y-axis values for the signal.
	upper limit defines the upper boundary of the envelope. x0 specifies the minimum value of the x-axis. dx is the x-axis interval between points in the input data. Y contains the y-axis values for the limit.
	lower limit defines the lower boundary of the envelope. x0 specifies the minimum value of the x-axis. dx is the x-axis interval between points in the input data. Y contains the y-axis values for the limit.
	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. Refer to Controlling Error Notification 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.
	test passed? indicates the result of limit mask testing. If TRUE, the signal is less than or equal to upper limit and greater than or equal to lower limit and the limit testing passed. If FALSE, the limit testing did not pass.
	test results contains the results of the limit testing at each data point. The VI returns TRUE if the data point is less than or equal to upper limit and greater than or equal to lower limit.
	output values contains signal in, upper limit, lower limit, and the failures. You can wire this output to a graph to view the values. The first element in the array is signal in. The second element in the array is the failure signal. The failure signal contains NaN at points where the limit test passes and contains the input signal where the limit test fails. The third and fourth elements of the array are upper limit and lower limit, respectively.
	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.

SVL Limit Testing (cluster of x0, dx, array) (scalar limits)

	signal in contains the signal to test to make sure it lies in the envelope bounded by the upper and lower limits x0 specifies the minimum value of the x-axis. dx is the x-axis interval between points in the input data. array contains the y-axis values for the signal.
	upper limit specifies the upper boundary of the envelope as a single scalar value.
	lower limit specifies the lower boundary of the envelope as a single scalar value.
	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. Refer to Controlling Error Notification 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.
	test passed? indicates the result of limit mask testing. If TRUE, the signal is less than or equal to upper limit and greater than or equal to lower limit and the limit testing passed. If FALSE, the limit testing did not pass.
	test results contains the results of the limit testing at each data point. The VI returns TRUE if the data point is less than or equal to upper limit and greater than or equal to lower limit.
	output values contains signal in, upper limit, lower limit, and the failures. You can wire this output to a graph to view the values. The first element in the array is signal in. The second element in the array is the failure signal. The failure signal contains NaN at points where the limit test passes and contains the input signal where the limit test fails. The third and fourth elements of the array are upper limit and lower limit, respectively.
	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.

SVL Limit Testing (XY)

	signal in contains the signal to test to make sure it lies in the envelope bounded by the upper and lower limits. X specifies the x-axis value of signal in. Y specifies the y-axis value of signal in.
	upper limit defines the upper boundary of the envelope. X contains the x-axis values for the limit. The values must match the signal in x-axis values. Y contains the y-axis values for the limit.
	lower limit defines the lower boundary of the envelope. X contains the x-axis values for the limit. The values must match the signal in x-axis values. Y contains the y-axis values for the limit.
	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. Refer to Controlling Error Notification 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.
	test passed? indicates the result of limit mask testing. If TRUE, the signal is less than or equal to upper limit and greater than or equal to lower limit and the limit testing passed. If FALSE, the limit testing did not pass.
	test results contains the results of the limit testing at each data point. The VI returns TRUE if the data point is less than or equal to upper limit and greater than or equal to lower limit.
	output values contains signal in, upper limit, lower limit, and the failures. You can wire this output to a graph to view the values. The first element in the array is signal in. The second element in the array is the failure signal. The failure signal contains NaN at points where the limit test passes and contains the input signal where the limit test fails. The third and fourth elements of the array are upper limit and lower limit, respectively.
	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.

SVL Limit Testing (XY) (scalar limits)

	signal in contains the signal to test to make sure it lies in the envelope bounded by the upper and lower limits. X specifies the x-axis value of signal in. Y specifies the y-axis value of signal in.
	upper limit specifies the upper boundary of the envelope as a single scalar value.
	lower limit specifies the lower boundary of the envelope as a single scalar value.
	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. Refer to Controlling Error Notification 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.
	test passed? indicates the result of limit mask testing. If TRUE, the signal is less than or equal to upper limit and greater than or equal to lower limit and the limit testing passed. If FALSE, the limit testing did not pass.
	test results contains the results of the limit testing at each data point. The VI returns TRUE if the data point is less than or equal to upper limit and greater than or equal to lower limit.
	output values contains signal in, upper limit, lower limit, and the failures. You can wire this output to a graph to view the values. The first element in the array is signal in. The second element in the array is the failure signal. The failure signal contains NaN at points where the limit test passes and contains the input signal where the limit test fails. The third and fourth elements of the array are upper limit and lower limit, respectively.
	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.

SVL Limit Testing (peaks)

	peaks in contains the peaks to test to make sure they lie in the envelope bounded by the upper and lower limits. freq. or order specifies the frequency or order of the peak. amplitude specifies the amplitude of the peak.
	upper limit contains the constant value that defines the upper boundary of the envelope. freq. or order specifies the frequency or order of the upper limit. amplitude specifies the amplitude of the upper limit.
	lower limit contains the constant value that defines the lower boundary of the envelope. freq. or order specifies the frequency or order of the lower limit. amplitude specifies the amplitude of the lower limit.
	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. Refer to Controlling Error Notification 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.
	test passed? indicates the result of limit mask testing. If TRUE, the signal is less than or equal to upper limit and greater than or equal to lower limit and the limit testing passed. If FALSE, the limit testing did not pass.
	test results contains the results of the limit testing at each data point. The VI returns TRUE if the data point is less than or equal to upper limit and greater than or equal to lower limit.
	output values contains peaks in, upper limit, lower limit, and the failures. You can wire this output to a graph to view the values. The first element in the array is peaks in. The second element in the array is the failure waveform. The failure waveform contains NaN at points where the limit test passes and contains the input signal where the limit test fails. The third and fourth elements of the array are upper limit and lower limit, respectively.
	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.

SVL Limit Testing (peaks) (scalar limits)

	peaks in contains the peaks to test to make sure they lie in the envelope bounded by the upper and lower limits. freq. or order specifies the frequency or order of the peak. amplitude specifies the amplitude of the peak.
	upper limit specifies the upper boundary of the envelope as a single scalar value.
	lower limit specifies the lower boundary of the envelope as a single scalar value.
	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. Refer to Controlling Error Notification 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.
	test passed? indicates the result of limit mask testing. If TRUE, the signal is less than or equal to upper limit and greater than or equal to lower limit and the limit testing passed. If FALSE, the limit testing did not pass.
	test results contains the results of the limit testing at each data point. The VI returns TRUE if the data point is less than or equal to upper limit and greater than or equal to lower limit.
	output values contains peaks in, upper limit, lower limit, and the failures. You can wire this output to a graph to view the values. The first element in the array is peaks in. The second element in the array is the failure waveform. The failure waveform contains NaN at points where the limit test passes and contains the input signal where the limit test fails. The third and fourth elements of the array are upper limit and lower limit, respectively.
	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.

SVL Limit Testing (scalar)

	value in contains the value to test to make sure it lies in the envelope bounded by upper limit and lower limit.
	upper limit specifies the upper boundary of the envelope.
	lower limit specifies the lower boundary of the envelope.
	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. Refer to Controlling Error Notification 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.
	test passed? indicates the result of limit mask testing. If TRUE, value in is less than or equal to upper limit and greater than or equal to lower limit and the limit testing passed. If FALSE, the limit testing did not pass.
	output values contains the input value, the test limits, and the failure. You can wire this output to a graph to view the values. value in returns value in unchanged. failure returns the result of the limit test for value in. failure displays NaN at a point where the limit test passes and contains the input value where the limit test fails. upper limit returns upper limit unchanged. lower limit returns lower limit unchanged.
	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.