DT AcquireHistoricalWaveformsThruSerial.vi
LabVIEW DataTaker Driver >> DataTaker High Level Serial >> DT AcquireHistoricalWaveformsThruSerial.vi
Uses serial communications. Initiates serial connection, requests all historical data then closes the serial connection.
Notes
- None.
Error Message Generated
- DT HIGHLEVEL ERROR: Unable to acquire historical waveform(s) thru serial.
Controls and Indicators
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DT type shows the type of dataTaker that is connected (DT800 or the DT500 family). |
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VISA resource name is the VISA resource used for serial communications (ignore when using DARTS protocol). |
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port config: serial port configuration options (data bits, stop bits, parity, and flow control are ignored when using DARTS protocol). |
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parity is the parity used for the connection. The DT 500 uses none, while the DT800 uses none, odd, or even parity. |
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stop bits specifies the number of stop bits used to indicate the end of a frame. |
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data bits is the number of bits in the incoming data. |
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baud rate is the rate of transmission |
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flow control sets the type of control used by the transfer mechanism. |
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protocol specifies whether to use standard serial communications, or the DARTS protocol (DT500 only). |
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The error in cluster can accept error information wired from VIs previously called. Use this information to decide if any functionality should be bypassed in the event of errors from other VIs.
The pop-up option Explain Error (or Explain Warning) gives more information about the error displayed. |
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The status boolean is either TRUE (X) for an error, or FALSE (checkmark) for no error or a warning. |
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The code input identifies the error or warning. |
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The source string describes the origin of the error or warning. |
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historical waveforms is an array of historical waveform clusters. |
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historical waveform clusters contain two arrays, which is the historical data stored on the dataTaker.
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The first array contains the time values of each data point of the waveform
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Each element is the time of each data value, given in seconds since 1904. |
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The second array contains the waveform data for the particular channel.
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Each element is a data value of the channel.
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waveform names is an array that contains names for each plot in the historical waveform cluster. For example, A1, is the first plot from schedule A. |
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Each element of the waveform names array, is a string which is a unique name derived from the dataTaker's schedule and channel. |
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timeout? is true if the acquisition timed out. |
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The error out cluster passes error or warning information out of a VI to be used by other VIs.
The pop-up option Explain Error (or Explain Warning) gives more information about the error displayed. |
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The status boolean is either TRUE (X) for an error, or FALSE (checkmark) for no error or a warning.
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The code input identifies the error or warning.
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The source string describes the origin of the error or warning.
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(C) 2003 dataTaker Pty Ltd & ICON Technologies Pty Ltd
www.dataTaker.com
www.icon-tech.com.au
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