Skip to main content

Dialog: Device Security Settings (OPC UA Client)

Function: The dialog shows all device security settings which are provided by the connected controller.

Call: Communication Settings tab, Device → Security Settings menu command

Requirements: You have installed CODESYS Security Agent and the active path to the controller is configured.

The following table shows all settings relating to the OPC UA Client:

EnableCRLChecks

Configuration of CRL checks as part of certificate validation

TRUE: CRL checks are enabled. The check fails if CRLs are missing for a CA.

EnableSelfSignedCertBackwardInteroperability

Configuration in case the OPC UA Client accepts self-signed ApplicationInstance certificates with "CA: TRUE" and "pathLength: 0". Until Version 1.04, most applications generate certificates of this type. Disabling CRL checks can lead to significant security problems.

TRUE: Backward compatibility is enabled.

SendCertificateChains

Configuration of whether or not the OPC UA Client is authorized to send certificate chains in the handshake response.

TRUE: Certificate chains are sent.

In this section: