What is the Procedure of resetting M580 CPU application password without .STU file.

Follow below steps to reset the CPU application password without .STU file:

1  Condition: At connection time, the Password dialog box is displayed.
2  Press SHIFT+F2.
Result: A grayed number is displayed in the right side of the Password dialog box.
3  Give this number to Schneider Electric support along with a Authorization Letter to provide temporary Password.
4  Receive the recovery password from Schneider Electric Support.
Note: The recovery password remains valid as long as the application password stored in the PLC is unchanged. To maintain control of credentials and reduce the exposure of recovered credentials, Schneider Electric recommends changing the application password after successful recovery and downloading the updated application to the PLC.
5  Enter this password.
6  Upload the application from CPU.
7  Save the application.
8  Modify the password (old password = the one provided by Schneider Electric support).
9  Click Build → Build Changes.
10 Save the application.

Released for: Schneider Electric India