The Security tab in the Program properties dialog box enables you to protect a program, sub-program or UDFBs against editing.

  • To protect the program, press the Set protection button and enter a password. The program is then encrypted. A protected program cannot be open anymore for editing. Its variables remain visible in the variable editor but cannot be modified.
  • To remove the protection, press the Remove protection button and enter the password specified when protection was set. The program is then decrypted and becomes available again for editing and modifications.

info Information

An encrypted program is not taken into account by the following tools:

  • Find / Replace in files.
  • Project comparison.
  • Building monitoring applications.
  • Generation of HTML documents.
  • Step by step debugging.

Protecting a program

IEC 61131-3 Automation platform > IEC 61131-3 Programming Environment > Managing programs > Protecting a program

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