17-6
IM 701730-01E
Computation, Analysis, and Search
Item
Description
Computation
+, -,
×
, binary computation, invert, differentiation, integration, and power spectrum.
The maximum record length that can be computed is as follows:
DL1735E/DL1740E, DL1720E:
All record lengths.
DL1740EL
When interleave is ON:
4 MWord
When interleave mode is OFF: 2 MWord
However, select the range (1 kW or 10 kW) for power spectrum computation (FFT).
Phase shift
You can shift the phase on CH1 to CH4
1
and observe the resultant signals. Computation is
performed using the phase shifted results.
History search function
Search for and display waveforms from the history memory that meet specified conditions.
Select the search method from the following two types.
Zone:
Set an area on the screen, then extract and display only those waveforms that pass
through the area (Pass mode), or do not pass through the area (Bypass mode).
Parameter: Extract and display only the results of the automated measurement of waveform
parameters that meet the specified condition.
Search and zoom function
Search a section of the displayed waveform data and display the section expanded.
Select the search method from the following five types.
Edge:
Counts the rising and falling edges and automatically searches an arbitrary
edge.
Serial pattern:
Automatically searches serial patterns of up to 64 bits synchronized or not
synchronized to the clock.
Parallel pattern:
Automatic parallel pattern search on CH1 to CH4, Math1 and Math2 (or CH1,
CH2, and Math1 on the DL1720E).
Pulse width:
Automatically searches the locations where the pulse width meets the
specified condition.
Auto scroll:
The zoom position can be automatically scrolled.
Cursor measurements
The following cursors are selectable.
Horizontal, Vertical, Marker, and Degree
Automated measurement of waveform parameters
Capable of performing automated measurement of waveform parameters.
Automated measurement of waveform parameters within one cycle (P-P through Int2XY),
statistical processing of waveform parameters, and statistical processing on the waveform
parameters of historical data.
P-P, Max, Min, Ave, Rms, Sdev, High, Low, +OShot, -OShot, Int1TY, Int2TY, Int1XY, Int2XY,
Freq, Period, Rise, Fall, +Width, -Width, Duty, Burst1, Burst2, Pulse, AvgFreq, AvgPeriod, and
Delay (between channels)
Statistical processing results
Statistical items
Min, Max, Avg, Cnt, and Sdv
Measurement of waveform parameters in dual areas is also possible.
Computation can be performed between waveform parameters measured in dual areas and
constants. Operator: +, -, *, or /
GO/NO-GO determination
The following two types of GO/NO-GO determination are available
• Determination using zones on the screen
• Determination using the result of the automated measurement of waveform parameters
Specify an action for NO-GO result.
Possible actions are screen image data output, waveform data storage, buzzer notification, and
e-mail transmission
2
.
1. Or CH1 and CH2 on the DL1720E
2. When the Ethernet interface option is installed
Saving and Printing of the Screen Image Data
Item
Description
Built-in printer (optional)
Prints screen image data.
External printer
Outputs the screen image to an external printer via the USB PERIPHERAL terminal or the
Ethernet network
1
.
Supports page description languages and printer types such as ESC/P, ESC/P2, LIPS3, PCL5,
Post Script (only via the Ethernet network
1
), and BJ
Floppy disk
2
or PC card, network drive1, USB storage
Output data format: PostScript, TIFF, BMP, JPEG, and PNG
1. When the Ethernet interface option is installed
2. Select floppy disk drive or PC card interface for the built-in media drive.
17.5 Functions
