Opening a log file
  1. A folder with the machine serial number as its name is created when the power is turned ON (unless it already exists).
  2. A folder with the date as its name is created.
    Example: 20160112 (If the date is January 12, 2016)
    *Not created if it already exists.

  3. After the date folder is created, a log file is opened, and the machine begins writing in the SD card.

    • When a date folder is created, the information regarding which date has been used as folder name is recorded in a file named LOG_LIST. The information is used when deleting log files. Handle this file carefully when you delete log files manually from the SD card.
    • The LOG_LIST file is created in the machine serial number folder.

Closing a log file
  • When the maximum size is exceeded:
    The maximum size of a device monitor log and an engine log file is 8 MB. When this is exceeded, the log file is closed and a new log file is opened.
  • When machine is shut down:
    All log files are closed when the machine is shut down.
Deletion of log files

When there are many log files and the remaining capacity of the SD card is low, the log files are deleted, starting from the oldest one.

The remaining capacity is checked when the machine is turned ON and log files are deleted if the remaining capacity is lower than 10%.

Deletion continues until there is becomes 30% or more remaining capacity.

Log files should be deleted in units of date folders.

Additional notes on the deletion process
  1. When deleting files, the files dating back 30 days or more are deleted together with the folders.
  2. The capacity of the SD card is checked. If the remaining capacity is 30% or mode, deletion process is finished.
  3. If the remaining capacity is less than 30%, the files dating back 21 days or more are deleted together with the folders.
  4. The capacity of the SD card is checked. If the remaining capacity is 30% or mode, deletion process is finished.
  5. If the remaining capacity is less than 30%, the files dating back 14 days or more are deleted together with the folders.
    Files dating back 7 days, 3 days, and one day are deleted until the remaining capacity becomes 30% or more.
    The LG_LIST file is used to determine how many days the files date back.