Operation2317200492_002_A5 - 04/2011 - © Oerlikon Leybold Vacuum3.2 InterfacesThe frequency converter has a RS 232 interface as stan-dard (SERVICE X5) and is optionally equipped with serialinterfaces:■ RS 485 C■ Profibus DP■ USBThe TURBO.DRIVE 400 is configured through the parame-ters according to the parameter list. Pxxx denotes parame-ter value xxx.The PC software "TURBO.DRIVE Server" allows convenientaccess by the user to the parameters of the frequency con-verter. It can be downloaded from www.oerlikon.com in themenu Oerlikon Leybold Vacuum → Documentation →Download Software.Interfaces priority levelThe optional interface has the highest priority level, followedby the Service interface X5. The Remote input X1 has thelowest priority level. See also parameter 179 in Section3.2.4.