Mitsubishi Electric MELSEC-Q Series User Manual page 132

7 FUNCTION
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(1) Password Registration
To perform the password registration, select GX Developer Online
setup/keyword set up for writing to PLC
(a)
Each item is described below:
(a) Target memory ....................Set the memory storing the file whose
password is to be registered or changed.
(b) Data type..............................Specifies the type of a file stored in the target
memory.
(c) Data name ...........................Displays a filename of a file stored in the target
memory.
(d) Registration..........................Displays an asterisks "
password-protected file.
(e) Password .............................Defines or changes a password.
(f) Registration Condition
1) Write Protect ................Write operation is restricted by the password.
(Reading is possible.)
2) Read/Write protect.......Read/Write operation is restricted by the
password.
3) Clear.............................Password is cleared.
(Sets password currently registered in the Password.)
POINT
(1) Password-protected files are limited to program files, and device comment files.
Other files cannot be password-protected.
(2) The password registered to a file can not read out from the file.
If the password can not be remembered, file operation other than following can
not be performed.
• Program memory: PLC memory format
• Standard ROM: storage of program memory data onto ROM
Take notes of the password registered and keep it on hand.
Register password.
(b) (c) (d)
Setting a password allows you to set the
registration condition.
MELSEC-Q
(e) (f)
" that indicates a
Password
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