Time at level (One Dimensional)

The Time at level (1D) DataMode™ stores one-dimension Time at level histograms in the output data file. Specify multiple input channels to generate multiple one-dimensional Time at Level data channels.

NOTE
When a large number of channels are selected for a DataMode, the GUI responsiveness can become sluggish. Typically with 500 channels or less, this is not overly intrusive to usability. However, if more than 500 channels are required for any given DataMode, it is recommended that users consider splitting the channels across multiple DataModes when possible; otherwise, users will need to be patient in regard to the GUI response when assigning or editing any of the DataMode parameters.

NOTE
The cumulative size of all histogram matrices across all Rainflow, Peak Valley Matrix and Time at Level DataModes is limited to 50 MB.

ClosedGeneric parameters

  • Name: Each DataMode must have a unique name and contain only valid characters (invalid characters are single and double quotes, '\', '@', '#', '&', '<' and '>'). Invalid channel names are 'true' and 'false' (case sensitive).
  • Description: Optional detailed description of the DataMode.
  • Trigger mode: Select one of four available triggering options. Use triggering to eliminate undesired segments of the input data stream before it is processed by the DataMode.
    • Always on: Do not use triggering. Data storage is always on from the start of the test.
    • Trigger: Data storage starts when the trigger channel becomes TRUE and continues until the test run stops.
    • Gate: Data storage occurs when and only when the trigger channel is TRUE.
    • One shot: Store a single data sample when the trigger channel transitions from FALSE to TRUE or if the trigger channel is TRUE on the first sample of any run.
  • Trigger channel: Select the logical input channel for triggering - when using a trigger option other than Always on. The trigger channel must have the same sample rate as the selected input channels.

DataModes options

  • Type: The only option is Evenly divided. All bins are the same size, computed as (High bound - Low bound) / Number of bins.
  • Number of bins: The maximum number of bins is 10000. The total number of bins is this specified number plus two for underflow and overflow bins.
  • Histogram bounds: Enter the desired Low bound and High bound for each selected input channel. If the range min and max parameters are defined for an input channel, those values are used as the default Low bound and High bound values for the histogram.
  • Channel select: From the channels list, select the desired input channels for the DataMode and click the appropriate arrow. Alternatively, drag and drop the desired channels to the appropriate list.