Remote Password - Mitsubishi Electric L02SCPU User's Manual And Reference

3.11.2

Remote Password

This function prevents unauthorized access to the CPU module from external devices.
(1) Settable modules and the number of settable modules
The following shows the modules for which the remote password can be set and the number of settable modules.
(The number of settable modules does not indicate the number of connectable modules in the system where a
CPU module is used.)
• CPU module (Built-in Ethernet port): 1
• Serial communication module: 8
• Ethernet module: 8
Remark
For details on the remote password for a serial communication module or Ethernet module, refer to the manual of each
module.
(2) Flow from remote password setting to reflection of the password
1.
Register a remote password. ( Page 375, Appendix 1.4)
Project window  [Parameter]  [Remote Password]
2.
Write it to the CPU module. (Write to PLC)
The remote password is transferred to the target module when:
• the CPU module is powered off and then on or
• the CPU module is reset.
3) The remote password is transferred
when the CPU module is powered off and
then on or is reset.
1) Register a remote password.
2) Write the password to the CPU module
A remote password proceeds the lock processing so that the access is limited. Only when the entered remote
password matches with the registered password, access is allowed (unlock processing (cancel)).
110
Programming tool
Ethernet
CPU module
Checks the remote password.