Encrypting Communication, Changing Security Settings

Important

Recommendations for data protection

In order to minimize the risk of data security violations, we recommend the following organizational and technical actions for the system where your applications are running. Whenever possible, avoid exposing the PLC and control networks to open networks and the Internet. Use additional data link layers for protection, such as a VPN for remote access. Install firewall mechanisms. Restrict access to authorized people. Use high-strength passwords. At commissioning, change any existing default passwords and change them on a regular basis.

Use the security features supported by CODESYS and the respective controller, such as encryption of communication with the controller and intentionally restricted user access.