12-27
IM 701450-01E
12
Saving and Loading Data
Properties
Displays the following information about the selected file: the name, extension, the file
size, the date the file was saved, the attribute, the comment, etc.
Unload
When waveform data is loaded and displayed, newly acquired waveforms are not
displayed even when waveform acquisition is started. To display the newly acquired
waveforms, you must unload the waveform data that has been loaded into the respective
channel.
Note
• An error occurs if a key other than the Abort key is pressed while saving or loading a file.
• Saving and Loading is not possible while waveform acquisition is in progress.
• If you change the extension of the file (using a PC, for example), the file can no longer be loaded.
• Files that do not have an archive attribute are not displayed in the File List window. Do
not remove the archive attribute of the files saved by the DL7400 using your PC.
• Up to 42 characters can be displayed in the path.
• File names are not case-sensitive. Comments are case-sensitive. In addition, the
following file names cannot be used due to limitations of MS-DOS.
AAUX, CON, PRN, NUL, CLOCK, COM1 to COM9, and LPT1 to LPT9
• The waveform data loaded from a file overwrites the waveform data in the acquisition
memory. Once the memory is overwritten, the old data cannot be recovered. It is
recommended that the current waveform data be saved before loading data from a file.
• Loaded waveforms are cleared only when Unload, Initialize, or Auto Setup is executed or
when the waveform acquisition condition is changed.
• If the total number of files and directories exceed 2500 in a single directory, the file list is
no longer displayed.
• This function cannot be used when using the FTP server function, FTP client function, the
LPR client function, or the Web server function.
Data Format When Storing Multiple Records
When multiple records are stored (history waveforms, for example), the following data
format is used.
ASCII Format: CR+LF is inserted between records.
<Header>
Measured data 1-1 of CH1, Measured data 1-1 of CH2, Measured data 1-1 of CH3, ... , [ CR+LF]
Measured data 1-2 of CH1, Measured data 1-2 of CH2, Measured data 1-2 of CH3, ... , [ CR+LF]
Measured data 1-m of CH1, Measured data 1-m of CH2, Measured data 1-m of CH3, ... , [ CR+LF]
[ CR+LF]
Measured data 2-1 of CH1, Measured data 2-1 of CH2, Measured data 2-1 of CH3, ... , [ CR+LF]
Measured data 2-2 of CH1, Measured data 2-2 of CH2, Measured data 2-2 of CH3, ... , [ CR+LF]
Measured data 2-n of CH1, Measured data 2-n of CH2, Measured data 2-n of CH3, [ CR+LF]
[ CR+LF]
Record 1
Record 2
Float Format: Stored in blocks of channels.
Measured data of record 1 of CH1
Measured data of record 2 of CH1
Measured data of record N of CH1
Measured data of record 1 of CH2
Measured data of record 2 of CH2
Measured data of record N of CH2
12.8 Saving/Loading the Waveform Data
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