AddCa
This method saves the file path of the CA certificate in the TLS configuration settings.
METHOD FINAL AddCa : I_SocketTlsSettingsClass
VAR_INPUT
sCaPath : STRING(TCPADS_TLS_CERTIFICATE_PATH_SIZE);
END_VARsCaPath: File path of the CA certificate.
Return parameter: Own interface pointer of type I_SocketTlsSettingsClass.