You can configure the trust CA for LOGO! 9 and later version devices in both Device settings and Online settings in LOGO!Soft Comfort. When you configure trust CA in Online settings, LSC requires that you confirm the connection interface for each communication attempt. See "Tools ‑> Transfer" for complete information.

This menu command allows you to manage the trusted CA certificates.

Click Import button to upload the trust CA certificate. LOGO!Soft Comfort displays the brief information of the imported certificate. LOGO!Soft Comfort supports the import of up to four trust CA certificates here.

Note Certificate strategy To ensure stable and secure communication, it's recommended to use the same certificate solution for the communication server and client. If the server and client use different certificate solutions, you need to import and trust the corresponding certificate from the server/client. Otherwise, the communication server and client cannot set up the connection.