296
6 COMMUNICATION FUNCTIONS
6.2 Security Function
Software security key authentication
This function is used to protect the user data by setting a common security key to the project and Motion CPU to limit the
personal computer which operates the project and Motion CPU which runs the project. The security key is created in MT
Developer2 and registered to the personal computer, or Motion CPU. Security keys are set for the following.
Operations that can be restricted with security key authentication function
■Program viewing
Operation is controlled based on whether the security keys for program files and the personal computer match.
■Program execution inside Motion CPU
Operation is controlled based on whether program files written to the Motion CPU and Motion CPU security key match.
Security key target Application
Program file Security keys can be registered for each program file, however,
the same security key is used for all program files in a project.
• Restricts the viewing of program files inside the project.
• Restricts the execution of programs with Motion CPUs.
Personal computer Multiple security keys can be registered for a single personal
computer.
Protected program files can be viewed with a security key.
Motion CPU Only one security key can be written per CPU module. Restricted programs can be executed by security keys.
Viewing
Key A
Program file
No key, or
key B
Key A
Viewing
Program execution
Program execution
No key, or key B
Key A
Key A
Program file
Key A
Program file
To Next Page
Loading...
