Security Function; File Password 32 - Mitsubishi Electric L02SCPU User's Manual And Reference

3.11

Security Function

This function protects data in the CPU module against tampering and theft by unauthorized persons. Use the following
functions according to your applications and needs.
Function

File password 32

Remote password
Block password
3.11.1
File Password 32
This function sets write password and read password for each file stored in the CPU module so that files are protected
against tampering and theft by unauthorized persons.
Read password
"XYZ98756" is authenticated.
Write password
"1234abCD" is authenticated.
(1) File protection timing
File protection is enabled immediately after the passwords are registered, and it is disabled immediately after the
passwords are deleted.
(2) Password target files
A password can be set to the following files.
• Program
• Device comment
• Initial device value
• Parameter
• Source information
Purpose
To limit access to each file in the CPU module
To limit access to the CPU module from external devices.
To limit access to each POU
Programming tool
Programming tool
CHAPTER 3 CPU MODULE FUNCTIONS
Reference
Page 105, Section 3.11.1
Page 110, Section 3.11.2
GX Works2 Version 1 Operating Manual
(Common)
CPU module
File A
Write password: AbcDEF12
Read password: XYZ98756
A write password and read
password can be set individually.
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