Time history
The Time history Data Mode™ stores multiple channels of triggered or un-triggered time history data streams in the output data file. All channels must have the same sample rate.
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.
Generic parameters
Navigate in a dialog using a mouse pointer, keyboard Tab, up-arrow or down-arrow key (not a 10-key pad up- and down-arrow key). Mouse point or Tab between insertion points or options. Use the mouse or up-arrow or down-arrow keys to scroll among options. Click the mouse, Tab or Enter to select an option.
- 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.
- 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.