Siemens SIMATIC ET 200SP System Manual page 163

Protection
9.4 Know-how protection
6. Click "OK" to confirm your entry.
7. Close the "Know-how protection" dialog by clicking "OK".
Result: The selected blocks are now know-how protected. Know-how protected blocks are
marked with a lock in the project tree. The password entered applies to all blocks selected.
Note
Password provider
Alternatively, you can set up know-how protection for blocks with a password provider.
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 is open.
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. You must enter the password again the
next time you open the block. If you close the "Access protection" dialog with "Cancel", you
will be able to open the block but you cannot display the block code or 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 9-5
162
Removing block know-how protection (1)
Distributed I/O system
System Manual, 09/2019, A5E03576849-AJ