Appendix 2.1 Setting File Passwords - Mitsubishi Electric MELSEC L Series User Manual

Appendix 2.1
This section describes the characters which can be used for the password, and the types of files that can be password-
protected.
If you forget the password, initialize the head module by executing the format PLC memory function using GX Works2, and
write the project to the head module again.
(1) Applicable characters
A read password and write password can be set individually. Alternatively, one same password can be specified
for both read and write passwords.
• Applicable characters: ASCII characters (numbers, alphabets
• Number of characters: 4 to 32 characters
*1
*2
(2) File protection timing
File protection is enabled immediately after the password is registered, and it is disabled immediately after the
password is deleted.
(3) Files that can be password-protected
Passwords can be set to parameter files.
(4) Online operations that require password authentication
Password authentication is required for the following operations whenever the file is password-protected.
(
• Read from PLC (data reading)
• Verify with PLC (data reading)
• Delete PLC data (data writing)
Downloaded from ManualsNet.com
Setting file passwords
Alphabets are case-sensitive.
Special characters are ` ~ ! @ # $ % ^ & * ( ) _ + - = { } | \ : " ; ' < > ? , . / [ ], and spaces.
Page 119, Appendix 2.2)
search engine
*1
, special characters
• Write to PLC (data writing)
• Create/Change/Delete of a password (data reading
and writing)
APPENDICES
*2
)
115
A