First switch the communication to encryption so that you do not reveal any credentials to other participants in the network when transferring the user management.
Enforcing encrypted communication
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On the controller
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Runtime version >= 3.5 SP14: Encryption can be enabled for “Communication Policy” and enforced for all clients.
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In CODESYS
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Encrypted communication can be selected as an option in the device editor on the “Communication Settings” tab (command or “Change Communication Policy” dialog) or in the “Security Screen” view.
For more information, see: ⮫ “Encrypting Communication, Changing Security Settings ”
If the CODESYS Security Agent is installed, then see the help for CODESYS Security Agent.
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Enforcing a user management
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On the controller
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Runtime version >= 3.5 SP17: User management is enforced by default for “Communication Policy”.
Note: For enabling the user management, at least a CODESYS development system V3.5 SP16 is necessary. This means that, in the case of enforced user management which has not been enabled yet, you cannot connect to an older development system.
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In CODESYS
For more information, see: ⮫ “Encrypting Communication, Changing Security Settings ” and ⮫ “Handling of Device User Management ”