Encrypted Communication between Automation Builder and the PLC

Via the tab Communication Settings

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Via the Security Screen in Automation Builder (checkbox).

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Install a trusted Certificate

Note

Ensure the PLC clock is set to the current time and date when using certificates on the PLC. Otherwise the certificate cannot be used to secure a protocol (see also AC500_Battery: AC500 Battery SNTP Client Configuration).

When trying to log in or when you set the PLC as active path, there will be a one-time pop-up asking you to add the PLC’s certificate to the trusted certificates:

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After trusting the PLC’s certificate, the communication between the Automation Builder and the PLC is now encrypted.

This is shown by additional yellow lines around the communication path on the Communication Settings page.