Security - Mitsubishi Electric MELSEC-L Series LD40PD01 User Manual

Security

When the hardware logic is written into a flash ROM, add a password to prevent inappropriate access to read the data.
After the security is set to "Enable" and [Write to Module (execution + flash ROM)] in [Online] is executed, the password input
window is displayed. After a password is input and writing data into the module is completed, the security becomes valid.
To read the hardware logic to which the security has been enabled from a flash ROM to the module, input the set password.
• When the security is enabled
• When the security is disabled
Setting method
[Project]  [Security]  [Enable] or [Invalid]
When a new project is created, the security has been set to "Enable".
Operation details and restrictions
The security setting is saved in a project.
The security of the project created with the configuration tool of version 1.000A is set to "Invalid".
■Actions to be taken when "Write to Module (execution + flash ROM)" is executed
Security setting
Enable
*1
Invalid
*1 When "Write to Module (execution memory)" is executed, the action same as the one to be taken when the security setting is "Invalid" is
executed.
8 FUNCTIONS OF THE CONFIGURATION TOOL
74
8.6 Project Management
Write to Module
(Execution memory + Flash ROM)
Password registration
Hardware logic + Password
Password matched
Hardware logic
Password input
Password not matched
Read from Module (Flash ROM)
Write to Module (Execution memory + Flash ROM)
Read from Module (Flash ROM)
Description
• The password registration window is displayed.
• The hardware logic is written with a password.
• The password registration window is not displayed.
• The hardware logic is written without a password.
Hardware logic + Password
Hardware logic
Hardware logic
LD40PD01
LD40PD01