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Error (Safety Library Export): Only visible POUs can be released.

You tried to release a library with safety-related IEC data in which the visibility of POUs to be released as library is set to 'Hidden' or 'Restricted'. Safety-related POUs can only be released as library if they are 'Visible'.

Refer to the topic "Knowledge Protection of Libraries" for details.

Remedy

  1. Make sure that the verification mark of all SNOLD networks in the POUs to be released are set.
  2. Make sure that each safety-related FB POU to be released is instantiated in the S_Main program. Only instantiated FBs can be released.
  3. Make sure that the 'Visibility' of each safety-related POU to be released is set to 'Visible' in the 'Release As Library' dialog.
  4. Retry to release the library.

If the error is still reported, or if the 'Visibility' of the safety-related POUs cannot be set to 'Visible' in the release dialog, contact the technical support of Phoenix Contact.