Protection
6.4 Know-how protection
CPU 1516pro-2 PN (6ES7516-2PN00-0AB0)
Operating Instructions, 09/2016, A5E35873416-AA
65
Opening know-how protected blocks
To open a know-how protected block, follow these steps:
1. Double-click the block to open the "Access protection" dialog.
2. Enter the password for the know-how protected block.
3. Click "OK" to confirm your entry.
Result: The know-how-protected block opens.
Once you have opened the block, you can edit the program code and the block interface of
the block for as long as the block or STEP 7 is open. The password must be entered again
the next time the block is opened. If you close the "Access protection" dialog with "Cancel",
the block will open but the block code will not be displayed and you will not be able to edit
the block.
If you copy the block or add it to a library, for example, this does not cancel the know-how
protection of the block. The copies will also be know-how-protected.
Removing block know-how protection
To remove block know-how protection, follow these steps:
1. Select the block from which you want to remove know-how protection. The protected
block must not be open in the program editor.
2. In the "Edit" menu, select the "Know-how protection" command to open the "Know-how
protection" dialog.
3. Clear the "Hide code (Know-how protection)" check box.
Figure 6-5 Removing block know-how protection (1)
4. Enter the password.
Figure 6-6 Removing block know-how protection (2)
5. Click "OK" to confirm your entry.
Result: Know-how protection will be removed from the block selected.
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