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Identification and Configuration | 7
JCM-631 User Manual
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7.3 File System
The file system lets you access files located on the internal flash disk or an USB
flash drive. Some files may be protected against read/write access or deletion.
This is normal behavior. Some of these files are virtual files, such as firmware im-
ages, or protected files, such as EDS files.
NOTICE
Malfunctions caused by missing or damaged system files
Careless working with system files can result in malfunctions of the device.
►
Do not delete or move any system files.
File categories
The files of the file system are categorized as follows:
■
System directories or system files used by the operating system
■
Files accessible to the user
System directories
The user is not allowed to delete system directories. System directories even sur-
vive formatting.
Directory
Description
/System
■
System configuration
■
System information
/USB
Root directory of the USB flash drive
/App
Directory for applications
/Data
Folder for storing data.
/Windows
/
RAM disk drive
Tab. 25:
System directories
NOTICE
Delays during start-up
Application files in the system directory
/Data
cause delays during startup.
►
Copy all application files to the
/App
directory and
not to
the
/Data
directory.
Formatting and
checking of data
The JCM-631 can only format the flash disk. Formatiing or checking the USB
flash drive is not possible.
INFO
Further information
For more information on this subject refer to the application-oriented manual
File
System
available for download from our
.
7.3.1 Properties
The following properties apply to the internal flash disk and USB flash drive:
■
8 files max. to be opened simultaneously
■
Separate directory names by a slash "/", not by a backslash "\".
■
When the controller creates a file, the file contains date and time assigned by
the controller.
■
Date, time, and file size are not available for all system files.