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NI-SCOPE (English | Japanese) |
Obtains a waveform from the digitizer and returns the specified measurement.
Refer to Using Fetch VIs for more information. Many of the measurements use the low, mid, and high reference levels. You configure the low, mid, and high references by using a property with Chan Based Low Ref Level, Chan Based Mid Ref Level, and chan based high ref level properties to set each channel differently.
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Use the pull-down menu to select an instance of this VI.
Obtains a waveform from the digitizer and returns the specified measurement array for a single channel and record as a cluster along with timing data.
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instrument handle identifies a particular instrument session. |
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channels specifies the channel from which to acquire data. For more information, refer to Channel String Syntax. |
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array measurement is the array measurement to add as a processing step. Default Value: None Refer to the list of NI-SCOPE Array Measurements for more information. |
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timeout is the time (in seconds) to wait for the data to be acquired. Use 0 for this parameter to tell NI-SCOPE to fetch whatever is currently available. Using -1 for this parameter implies infinite timeout. |
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error in describes error conditions that occur before this node runs. This input provides standard error in functionality. |
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meas waveform size is the maximum number of samples returned in the measurement waveform array for each waveform measurement. Default Value: –1 (returns all available samples)
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instrument handle out has the same value as the instrument handle. |
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meas wfm info contains all the timing and scaling information about the waveform.
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meas waveform returns a single record for single channel as a cluster for wiring to a graph, including the timing information.
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error out contains error information. This output provides standard error out functionality. |
Obtains a waveform from the digitizer and returns the specified measurement voltage data for a single channel and record.
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instrument handle identifies a particular instrument session. |
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channels specifies the channel from which to acquire data. For more information, refer to Channel String Syntax. |
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array measurement is the array measurement to add as a processing step. Default Value: None Refer to the list of NI-SCOPE Array Measurements for more information. |
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timeout is the time (in seconds) to wait for the data to be acquired. Use 0 for this parameter to tell NI-SCOPE to fetch whatever is currently available. Using -1 for this parameter implies infinite timeout. |
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error in describes error conditions that occur before this node runs. This input provides standard error in functionality. |
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meas waveform size is the maximum number of samples returned in the measurement waveform array for each waveform measurement. Default Value: –1 (returns all available samples)
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instrument handle out has the same value as the instrument handle. |
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meas wfm info contains all the timing and scaling information about the waveform.
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measWfm returns a one-dimensional array of data for one waveform. |
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error out contains error information. This output provides standard error out functionality. |
Obtains a waveform from the digitizer and returns the specified array measurement for multiple channels and records as a cluster.
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instrument handle identifies a particular instrument session. |
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channels specifies the channel from which to acquire data. For more information, refer to Channel String Syntax. |
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array measurement is the array measurement to add as a processing step. Default Value: None Refer to the list of NI-SCOPE Array Measurements for more information. |
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timeout is the time (in seconds) to wait for the data to be acquired. Use 0 for this parameter to tell NI-SCOPE to fetch whatever is currently available. Using -1 for this parameter implies infinite timeout. |
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error in describes error conditions that occur before this node runs. This input provides standard error in functionality. |
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meas waveform size is the maximum number of samples returned in the measurement waveform array for each waveform measurement. Default Value: –1 (returns all available samples)
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instrument handle out has the same value as the instrument handle. |
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wfm info contains all the timing and scaling information about the waveform.
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meas waveform returns an array of clusters for wiring to a graph, including the timing information. If you specify a channel list, NI-SCOPE returns the waveforms in the list order. NI-SCOPE returns these records sequentially, so all record 0 waveforms are first. For example, with a two-channel list, you would have the following index values: index 0 = record 0, channel 0 index 1 = record 0, channel 1 index 2 = record 1, channel 0 index 3 = record 1, channel 1
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error out contains error information. This output provides standard error out functionality. |
Obtains a waveform from the digitizer and returns the specified measurement voltage data. Unlike the Measurement 1D DBL instance of the niScope Fetch Measurement VI, the Measurement 2D DBL instance can fetch data from multiple channels and records.
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instrument handle identifies a particular instrument session. |
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channels specifies the channel from which to acquire data. For more information, refer to Channel String Syntax. |
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array measurement is the array measurement to add as a processing step. Default Value: None Refer to the list of NI-SCOPE Array Measurements for more information. |
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timeout is the time (in seconds) to wait for the data to be acquired. Use 0 for this parameter to tell NI-SCOPE to fetch whatever is currently available. Using -1 for this parameter implies infinite timeout. |
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error in describes error conditions that occur before this node runs. This input provides standard error in functionality. |
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meas waveform size is the maximum number of samples returned in the measurement waveform array for each waveform measurement. Default Value: –1 (returns all available samples)
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instrument handle out has the same value as the instrument handle. |
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wfm info contains all the timing and scaling information about the waveform.
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wfm is an array of waveforms; that is, a two-dimensional array. This output can be wired directly to the LabVIEW waveform graph, but each waveform is plotted without timing information. The 2D array includes waveforms from multiple channels, records, and acquisition types. For example, if the acquisition type is normal, there is one waveform per channel per record. If you call the fetch VI during a normal acquisition with the channel string "0,1" and the record number set to –1, the order of the output is: record 0, channel 0 record 0, channel 1 record 1, channel 0 record 1, channel 1 The order of the channels is the order specified by the channels parameter. |
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error out contains error information. This output provides standard error out functionality. |
Obtains a waveform measurement and returns the measurement value for a single channel and record. Specify a particular measurement type, such as rise time, frequency, or voltage peak-to-peak. The waveform on which the digitizer calculates the waveform measurement is from an acquisition that you previously initiated. The statistics for the specified measurement are also returned, where the statistics are updated once every acquisition when the specified measurement is fetched by any of the Fetch/Read measurement VIs.
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instrument handle identifies a particular instrument session. |
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channels specifies the channel from which to acquire data. For more information, refer to Channel String Syntax. |
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scalar measurement is the measurement to perform on the waveform read from the digitizer. Refer to the list of NI-SCOPE Scalar Measurements for more information. |
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timeout is the time (in seconds) to wait for the data to be acquired. Use 0 for this parameter to tell NI-SCOPE to fetch whatever is currently available. Using -1 for this parameter implies infinite timeout. |
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error in describes error conditions that occur before this node runs. This input provides standard error in functionality. |
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instrument handle out has the same value as the instrument handle. |
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stats contains the resulting measurement data.
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error out contains error information. This output provides standard error out functionality. |
Obtains a waveform measurement and returns the measurement value for multiple channel and multiple record acquisitions.
Specify a particular measurement type, such as rise time, frequency, or voltage peak-to-peak. The waveform on which the digitizer calculates the waveform measurement is from an acquisition that you previously initiated. The statistics for the specified measurement are also returned, where the statistics are updated once every acquisition when the specified measurement is fetched by any of the Fetch/Read waveform measurement VIs.
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instrument handle identifies a particular instrument session. |
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channels specifies the channel from which to acquire data. For more information, refer to Channel String Syntax. |
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scalar measurement is the measurement to perform on the waveform read from the digitizer. Refer to the list of NI-SCOPE Scalar Measurements for more information. |
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timeout is the time (in seconds) to wait for the data to be acquired. Use 0 for this parameter to tell NI-SCOPE to fetch whatever is currently available. Using -1 for this parameter implies infinite timeout. |
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error in describes error conditions that occur before this node runs. This input provides standard error in functionality. |
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instrument handle out has the same value as the instrument handle. |
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stats is an array of clusters with scalar measurement results and statistics. The array of clusters includes waveforms from multiple channels, records, and acquisition types. For example, if the acquisition type is normal there is one waveform per channel per record. If you call the multi fetch measurement VI during a normal acquisition with the channel list "0,1", the order of the results output is: statistics for record 0, channel 0, statistics for record 0, channel 1, statistics for record 1, channel 0, statistics for record 1, channel 1 The order of the channels is the order specified by the channels parameter.
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error out contains error information. This output provides standard error out functionality. |
Obtains a waveform from the digitizer and returns the specified measurement voltage data for a single channel and record.
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instrument handle identifies a particular instrument session. |
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channels specifies the channel from which to acquire data. For more information, refer to Channel String Syntax. |
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scalar measurement is the measurement to perform on the waveform read from the digitizer. Refer to the list of NI-SCOPE Scalar Measurements for more information. |
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timeout is the time (in seconds) to wait for the data to be acquired. Use 0 for this parameter to tell NI-SCOPE to fetch whatever is currently available. Using -1 for this parameter implies infinite timeout. |
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error in describes error conditions that occur before this node runs. This input provides standard error in functionality. |
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instrument handle out has the same value as the instrument handle. |
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result contains the measurement acquired. |
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error out contains error information. This output provides standard error out functionality. |
Fetches a waveform from the digitizer and performs the specified waveform measurement. Use this function for multiple channel and multiple record acquisitions.
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instrument handle identifies a particular instrument session. |
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channels specifies the channel from which to acquire data. For more information, refer to Channel String Syntax. |
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scalar measurement is the measurement to perform on the waveform read from the digitizer. Refer to the list of NI-SCOPE Scalar Measurements for more information. |
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timeout is the time (in seconds) to wait for the data to be acquired. Use 0 for this parameter to tell NI-SCOPE to fetch whatever is currently available. Using -1 for this parameter implies infinite timeout. |
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error in describes error conditions that occur before this node runs. This input provides standard error in functionality. |
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instrument handle out has the same value as the instrument handle. |
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results contains the measurements acquired as a one-dimensional array; if you specify a channel list, NI-SCOPE returns the waveforms in the list order. NI-SCOPE returns these records sequentially, so all record 0 waveforms are first. For example, with a two-channel list, you would have the following index values: index 0 = record 0, channel 0 index 1 = record 0, channel 1 index 2 = record 1, channel 0 index 3 = record 1, channel 1 |
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error out contains error information. This output provides standard error out functionality. |
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