Trace Command Statistics

Overview

The command Statistics is available in the Trace menu (that is only visible if you are working in the trace editor) if the trace editor contains samples. Execute the Statistics command to open the Trace Statistics dialog box that shows statistical values for each trace variable.

Dialog Box Trace Statistics

The dialog box Trace Statistics contains the analyzed time range and duration in the header.

Parameter

Description

Signal

Name of the trace variable, for example, PLC_PRG.S1.

Index

Zero-based index of the signal order.

N

Number of measured values that are used as a basis for the calculations.

Min

Smallest value.

Avg

Average value.

Median

The value that is situated in the middle when the values are ordered by size.

RMS

Root mean square.

StdDev

Standard deviation.

Max

Largest value.

Integral

Integral.

Min Δt [s]

Smallest change of time intervals for successive values.

Avg Δt [s]

Average change of time intervals for successive values.

Median Δt [s]

Median change of time intervals for successive values.

StdDev Δt [s]

Standard deviation of change of time intervals for successive values.

Max Δt [s]

Largest change of time intervals for successive values.

You can perform the following actions in the table.

Action

How to be performed

Sorting the table by a column

Click the heading of a column of the table.

Result: The table is sorted by that column and changes the order from ascending to descending and back.

By default, the table is sorted in ascending order by the Index column. Thus, the signals are sorted in the same order as in the tree structure.

Selecting a line

Click a line to select it.

To select or clear several lines, press Shift + the up arrow or down arrow key.

Copying selected lines

If you have selected one line or several lines, press Ctrl+C to copy the selection to the Clipboard.

The values of the individual columns are tab-separated, and the lines are delimited with the control character CR or LF.