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< 10. Other Functions >
10-7
IM 11M12D01-01E
10.2.2 Time Axis of Trend Graph
The time axis of the trend graph is determined by the sampling interval. For each channel, and for
each division on the time axis, 60 data items can be plotted. If data is sampled at 10-second intervals
then each division represents 60 x 10 = 600 seconds or 10 minutes (see Figure 10.6). The sampling
interval can be set in the range 1 to 30 seconds. If it is set to 1 second, then trend graph time span is
60 x 1 x 5 = 300 seconds (5 minutes) and if set to 30 seconds, then trend graph time span is 60 x 30 x
5 = 9000 seconds (150 minutes).
25.0%O
2
10min./div.
0.0%O
2
60 data
Sampling interval
Preset upper limit
Preset lower limit
Correspondence : Channel no. to color
F10-6E.ai
Time per division.,
calculated from
sampling interval
1 2 3 4 5 6 7 8 a b c
Figure 10.6 Plotting Graph for Sampling Interval
NOTE
If a rapid change in the measured value occurs during sampling, no sampled data are plotted on the
graph. Use the graph indication tentatively. Check the output current for accurate data.
10.2.3 Trend Graph Display Settings
<Setting procedure>
Selecting channels to be displayed
1) On the basic panel display, touch the Graph display key to display the [Trend graph] display.
2) If you touch anywhere in the Graph display area, the [Graph channel select] display will appear.
The colors of the channel numbers correspond to the colors of the trend graphs. Grayed-out
channels are not selected for display.
3) To suppress display of the Ave-a graph, move the pointer to [Ave-a] and touch the Enter key. The
color of [Ave-a] turns gray, and its trend graph is no longer displayed.
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