Security for the Development System In CODESYS , you can apply access protection to projects, libraries, as well as individual applications. In addition to a simple write protection for a project, a u

with the controller Important In V3.5 [...] >= 3.5 SP [...] . Runtime version < 3.5

Security for CODESYS WebVisu Protect the connection between the web server of the controller and the visualization client with the following measures against unwanted access: Configure an HTTPS connec

What to do when... :

Certificate Expired If the certificate from the controller for encrypted communication has expired (valid from "not before" until "not after"), you get a prompt with a corresponding message in CODESYS

New Certificate (while the current one is still valid) A new certificate can be issued before the existing certificate expires. This makes it possible for the encrypted communication to continue seaml

. Example: 0

Problems at Login If you have entered an incorrect password when logging in to the user management of the controller, then the login dialog reappears immediately afterwards. After three incorrect atte

Permitting Encrypted Communication Again Tip Remember that not every controller supports the deactivation of encrypted communication. Important We strongly advise against disabling encrypted communica

Reference: Programming :