Mitsubishi Electric MELSEC Q Series User Manual page 186

(b) Checking file attribute
Use the ll() command to check the file attribute.
The following explains how to identify the file attribute.
For details of the ll() command, refer to the manual for Vx Works.
(2) Operations on files with system file attribute
The access authority needs to be removed with the C Controller module dedicated function.
To change the access authority, the password set in "File access restriction setting" on the <<Security settings>>
tab of Setting/monitoring tools for the C Controller module is required.
For details of C Controller module dedicated function, refer to the following.
Page 353, CHAPTER 20
When accessing the files with the system file attribute in the script file "STARTUP.CMD", remove the access authority inside
the script file. After removing the system file attribute of the file, specify the system file attribute to the script file
"STARTUP.CMD" in order to prevent the leakage of the password.
(a) Changing access authority
The access authority can be changed with the Shell command, script file, or C Controller module dedicated
function in the user program.
(b) Checking access authority
The access authority can be checked with the Shell command or C Controller module dedicated function in the
user program.
(3) Precautions
(a) Do not use files with the system file attribute in the script file "STARTUP.CMD"
stored on the SD memory card or CompactFlash card to prevent the password leak.
(b) When the parameter is written with Setting/monitoring tools for the C Controller
module version 4.01B or earlier, the password set to "Security password setting" on
the <<Security settings>> tab is initialized. (Q24DHCCPU-V only)
(c) Account and password
• For characters that can be used in user name and password, refer to the following.
Setting/Monitoring Tools for the C Controller Module Version 4 Operating Manual
• If you forgot your password, initialize the C Controller module.
Initialization restore the factory account settings of the system. For initialization, refer to the following.
 Page 62, Section 6.1
184
drwxrwxrSH
H: Indicates the hidden file attribute is specified.
x: Indicates the hidden file attribute is not specified.
S: Indicates the system file attribute is specified.
w, -: Indicates the system file attribute is not specified.
-: Indicates the read-only attribute is specified.
w: Indicates the read-only attribute is not specified.
-: Indicates a file.
d: Indicates a directory.