Dialog: Project Settings: Security

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Function: The dialog is used to configure the project protection by a password, a dongle, or a certificate.

Call: Project → Project Settings command, Security category

If you lose the encryption password, then you can no longer open the project. You can also no longer restore it.

No protection	: The project file is not protected from unauthorized access and data manipulation. Note: We strongly recommend that you use a security feature. : The Password, Dongle, and Certificates options cannot be selected.
Integrity check	When you create a new project, this option is enabled by default. : The project file is stored in a proprietary format and its integrity is checked each time the project is loaded. The file may be incompatible with older versions of the development system. Note that the project file is not encrypted. To better protect your data, activate one of the encryption functions.
Encryption	: The Password, Dongle, and Certificates encryption functions can be selected.
Password	Entering, changing and confirming the encryption password When you save the project with these settings, you have to specify the password later in order to open the project again, even if it is to be loaded as a library reference.
Dongle	Requirement: You have connected the CODESYS security key (dongle) to the computer. Add: The Add Registered Dongle dialog opens.
Registered dongles	List box of the registered dongles
Certificates	Certificates are used to encrypt the contents of the open project file. Requirement: The certificates for all users who share the project have to be installed in the local memory. : The Certificate Selection dialog opens.

Table 149. Add Registered Dongle

Dongle	List box of all connected dongles
Refresh	CODESYS refreshes the list box.
Blink	The LEDs of the selected dongle flash for two seconds (if it supports this function).

The dongle has to be connected to the computer when CODESYS loads the project, even if it is loaded as a library reference.