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Programming
3
Fig. 3-38: X-Bar
graphs.txtS
The Statistics / Graphs screens are used to view the statistics from the selected rundowns in
summary and in graphical form. Refer to Chapter 4 Statistics, page 97 for a description of the
meaning of the statistics values. The rundowns are selected by the "Application" on the Graphs
screen, and are further filtered using the criteria in the Statistics / Parameters screen. The user
may also select the Subgroup Size (2-25) or switch between calculations for Torque and Angle.
The <F3> soft key is used to toggle the view between the Histogram, Range, and Xbar charts.
The <F1> soft key is used to toggle between Manual and Automatic update. In Automatic mode,
the statistics are recalculated, and the graph redrawn, whenever a new rundown is entered into
the Chronological History. In Manual mode, the recalculation is done only when the user presses
the <F2> "Refresh" key. With large data sets, it may be desirable to set Manual update mode for
performance reasons.
The left side of the screen contains a textual summary of the statistical calculations. The table at
the bottom of the screen displays the relevant programmed parameters for the currently selected
application.
The TMEI does not provide access to the Graphs screen.
Note:
If any of these programmed parameters (Min / Max / Turnoff Torque / Angle) is changed,
any previous rundowns for this application are no longer valid for statistical calculation
purposes. When a Min / Max / Turnoff value is changed, an entry is made in the Chrono-
logical History indicating the end of valid rundowns for statistical calculations: