Siemens SINUMERIK 808D Function Manual page 323

Faulty settings of date
If a date earlier than the actual date is set for activated CNC lock function, alarm 8065 is issued after NC restart and then NC
start is disabled. In this case, you must correct the date and perform an NC restart again to clear the alarm.
If during the correcting, a future date is set inadvertently, alarm 8066 is issued. Provided no NC restart has been performed,
the date can still be corrected. After NC restart, a date set in the future is considered as being an actual date and can no
longer be reset.
NOTICE
Shorter service life
After NC restart, a future date set earlier than the lock date reduces the service life until the lock date. If a date equal to or
later than the lock date is set, alarm 8064 is issued and the NC start disabled.
Make sure you set the date correctly prior to NC restart.
Further information
Reference:
● Online help for the communication tool Access MyMachine (AMM)
● Online help for PLC Programming Tool
Function Manual
01/2017
3. Enter the data required in the dialog box, for example:
4. Click this button to save the data in the form of .ucls file.
Clicking this button allows you to reimport the unencrypted data stored in the project file.
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