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11-15
IM 701210-06E
Waveform Analysis/Search
11
Explanation
When the data acquisition is stopped, a section of the waveform can be searched and
displayed expanded.
Search Type
The following two search types are available.
• Edge
Searches by counting the number of times waveform goes above (rising) or below
(falling) a specified level from the starting point.
• Auto Scroll
The zoom position automatically moves (auto scroll) in the specified direction. You
can scroll through the zoomed waveform and stop the scrolling at the desired position.
• Voice Search
Searches the start point (rising edge of the Voice bit of the event waveform) of the
voice memo that has been recorded using the voice memo function (see section 7.9).
Playing the voice memo that has been found is also possible.
Search Condition for Edge Search: Setup
Source:
Select the channel to be searched.
Level:
Set the level used to determine the rising or falling edge. The range is
10 divisions within the screen. The resolution varies depending on the
module. For details, see section 6.5.
Polarity:
Select the polarity from the following:
:
Search by the number of times the waveform passes from below
the specified level to above the specified level.
:
Search by the number of times the waveform passes from above
the specified level to below the specified level.
Hysteresis: Set the hysteresis.
Count:
Set the number of times or is to be met. The selectable range is 1
to 1000000.
Start Point: Set the start position of the search. The selectable range is from –5 to 5
divisions.
Display Position of the Searched Waveform: Result Window
When the zoom mode is set to Z1 & Z2 or Main & Z1 & Z2, you can select whether to
display the searched waveform in the Z1 or Z2 window.
Search Count: Searched Pattern
• For Edge Search
The search can be carried out up to 1000 times. The rising or falling edge is counted
from the previous search position. In addition, the past search results can also be
displayed.
• For Voice Search
Search can be performed on waveforms that have voice memo recorded. The start
point of the voice memo is counted from the previous search position. In addition, the
past search results can also be displayed.
Changing the Zoom Rate and Zoom Position
The search results are displayed in the zoomed waveform display area. As with the
zoomed waveform (see section 8.5), the zoom rate and position can be changed.
11.4 Search Data Using Search and Zoom Function