Backing up data and series commissioning
8.5 Write and know-how protection
The active know-how protection permits an exception list for parameters to be defined that
the customer may access.
If you remove the parameter for the password from the exception list, the know-how
protection can only be undone by reverting to the factory settings.
Actions that are possible during active know-how protection
● Restoring factory settings
● Acknowledging messages
● Displaying messages
● Show message history
● Reading out diagnostic buffer
● Switching to the control panel (complete control panel functionality: Fetch master control,
all buttons and setting parameters)
● Upload (only parameters that are accessible even though know-how protection is active)
The individual parameters that are excluded from the know-how protection can be found in
the List Manual in Chapter "Parameters for write protection and protection of know-how".
Commissioning the converter with know-how protection
Procedure - overview
1. Commission the converter.
2. Create the exception list (Page 236).
3. Activate the know-how protection (Page 234).
4. Save the settings in the converter by copying RAM to ROM with
or via p0971 = 1.
5. Save the project with on the PG/PC. Also back up any other project-related data
(machine type, password, etc.) that may be required for the support of the end customer.
Converter with control units CU240D-2
Operating Instructions, 04/2015, FW V4.7.3, A5E34262100B AB
233
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