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Set Dynamic Data Attributes Express VI

LabVIEW 2013 Help

Edition Date: June 2013

Part Number: 371361K-01

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Owning Palette: Signal Manipulation Express VIs

Requires: Base Development System

Sets the attributes of the dynamic data you wire to Signals In.

Dialog Box Options
Block Diagram Inputs
Block Diagram Outputs

Dialog Box Options

ParameterDescription
All SignalsContains the following options:
  • Start timestamp—Specifies whether to set the start timestamp of the signals.
    • Start timestamp value—Specifies the value to use as the start timestamp. This option is available only if you place a checkmark in the Start timestamp checkbox.
Signal IndexSpecifies the index of the signal whose attributes you want to set. The default is 0. Signal Index contains the following options:
  • Signal name—Specifies whether to set the name of the signal.
    • Signal name value—Specifies the name of the signal. This option is available only if you place a checkmark in the Signal name checkbox.
  • Time mode—Specifies whether to apply absolute time or relative time to the signal.
    • Time mode value—Specifies the time mode to apply to the signal. You can choose from the following options:
      • Absolute (default)—Displays the timestamp in terms of time elapsed since 12:00 a.m., Friday, January 1, 1904, Universal Time [01-01-1904 00:00:00].
      • Relative—Displays the timestamp in terms of seconds starting from zero. For example, 100 in relative time equals 1 minute and 40 seconds.
      This option is available only if you place a checkmark in the Time mode checkbox.
  • Timestamp—Specifies whether to set the timestamp of the signal.
    • Timestamp value—Specifies the timestamp to apply to the signal. This option is available only if you place a checkmark in the Timestamp checkbox.
  • X dimension—Specifies whether to set the X dimension of the signal.
    • X dimension value—Specifies the X dimension of the signal. You can choose from the following options:
      • No Unit [-] (default)
      • Time [sec]
      • Frequency [Hz]
      This option is available only if you place a checkmark in the X dimension checkbox.
  • Unit—Specifies whether to set the unit of measurement of the signal.
    • Unit value—Specifies the unit of measurement of the signal. For example, if the signal whose attributes you want to set measures voltage, you can specify V for volts or kV for kilo volts. This option is available only if you place a checkmark in the Unit checkbox.

Block Diagram Inputs

ParameterDescription
Signals InSpecifies the dynamic data that contains the input signal or signals.
Signal IndexSpecifies the index of the signal whose attributes you want to configure. The value you wire to this input overrides the value you set in the configuration dialog box.
error inDescribes error conditions that occur before this node runs.

Block Diagram Outputs

ParameterDescription
Signals OutReturns the dynamic data that contains the signal you set with this Express VI and any unchanged signals from Signals In.
error outContains error information. This output provides standard error out functionality.

This Express VI operates similarly to the following VIs and functions:

Set Waveform Attribute


 

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