Instruction manual

6 Input and Output 99
Events
As DataTrax2 acquires data, it is aware of the value of each data point as it happens. It should
then be possible to "train" the software to watch for values above or below a specified level and
have DataTrax2 advise the user when such conditions are met. This feature in DataTrax2 is
called an Event. Events are set up in the events page of the Preferences menu.
Figure 6-22: Controls for the Event programming
There are two types of events: Channel events and Timed Events.
Channel Events 1 Data on one channel is monitored.
2 You have to set a threshold_high and a threshold_low value. The threshold values can be set either by
entering a value or by dragging the cursors in the graph.
3 You can select one of the following triggering options:
•Positive Edge Triggered: The data value has to go from below the threshold_low value to above
the threshold_high value
•Negative Edge Triggered: The data value has to go from above the threshold_high value to below
the threshold_low value
•In window: If the data value is between threshold_low and threshold_high value;
•Out of Window: if the data value is outside the window defined by threshold_low and
threshold_high value