11-3
IM 701240-01E
Waveform Analysis/Search
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App
Index
Explanation
The acquisition memory retains waveform data of the last specified number of triggers.
If a trigger is activated beyond the number of triggers that can be held, the oldest
waveform data is cleared.
Selected Record No.
The selectable range is 0 to –(the number of retained waveforms – 1). The default value
is 0. The most recent (current) waveform is 0, the waveform previous to that is –1, and
so on.
The number of triggers that can be held varies depending on the selected record length.
For details, see appendix 2.
If the trigger count is 1, only the displayed waveform is held in the acquisition memory;
waveform data in the past are not held.
Display Mode
• Display Waveform Data of a Single Record: One
Select the waveform to be displayed using Select Record in the range specified by
Start Record and End Record.
• Display All of the Selected Waveform Data: All
The waveform data specified by Start Record and End Record are displayed
accumulated. The waveform data selected by Select Record is displayed brightly.
• Average Display of the Selected Waveform Data: Ave
The waveform data specified by Start Record and End Record are displayed
averaged.
Show Map (A List of History Maps)
You can list the number of the waveform data stored in the acquisition memory and the
time at acquisition end. One screen displays 75 data points of information. You can scroll
through the data by using the jog shuttle.
Clearing the Waveform Data
• Clears all the waveforms in the acquisition memory.
• Cleared waveforms cannot be recovered.
Notes When Setting the History Memory Function
• You cannot use the history memory function when realtime recording is in progress.
• You cannot use the history memory function, if the acquisition mode is Average.
• If you abort the waveform acquisition, the triggered waveform is displayed as a valid
waveform.
• History records are not lost when waveform acquisition is stopped and then restarted,
provided that acquisition conditions remain unchanged.
• If you change the acquisition settings, history memory is cleared when you restart
acquisition using the new settings.
For details on the waveform acquisition conditions, see section 7.1.
• Average display is not possible on the following waveforms.
• Waveforms of a record length greater than equal to 1 MW.
11.1 Displaying History Waveforms