The histograms automatically adjust their ranges to the current values.

The percent scale (y-axis) is adjusted to the maximum percent value.

If a new value is not in the range for the time scale (x-axis), the range is increased by a factor of 2 until the new value is in the range. In this case, the previous values are recalculated for the new range.

If a value occurs so seldom that it does not create a peak in the histogram, then a one pixel peak is created so that the value can be seen.

This histogram shows the relative frequency of cycle time values in the user task currently selected. See also Minimal Sample Time

The counter to the left under the histogram counts the number of cycles in RUN mode represented in this histogram.

This histogram shows the relative frequency of sleep time values in the user task currently selected. See also Minimal Sample Time

For cycle tasks, normally a single value is shown with 100 %. This is the minimum sleep time for user tasks. If you change the value for the minimum sample time, a second peak is created for the new value.

User tasks cycles are included in this histogram (regardless of the PLC mode).

The counter to the left under the histogram counts the number of cycles in RUN mode represented in the cycle time histogram.

This counter has no meaning for the sleep time histogram because cycles are included there (regardless of the PLC mode).

If you press this command button, the histograms for the user task currently selected is reset and a new statistic is started.