Rexroth Tightening System 350 System Documentation - Rhino ...

7 Data Services Tightening Technology | Bosch Rexroth AG 103/3167.2 Ethernet communicationThe opened FTP connection remains active until it is either closed by the FTP server or a disruption occurs.Such a connection is only reopened if needed.NoteThe FTP server must be able to support multiple sessions. Keeping the FTP connections open ensuresthe fastest possible data transfer.Data transfer beforesequence end via oneFTP connection (singlesession)Some FTP servers (partner controllers) cannot support multiple sessions or are also used by other networkparticipants. It is thus sometimes preferable that as few FTP sessions as possible are used.The Single session setting in the BS350 operating system enables you top open just one FTP connectionwhen transferring data before sequence end. The FTP connection is only opened when results dataneeds to be transferred and then immediately closed after the transfer is complete.If it is not possible to transfer the results file within the set time frame, the FtpF = “1” (FTP error) andNF = “0” (no fault) signals are output.Setting the type of transfer for the results output takes place in the operating system underFTP transfer settings in the Results index card (see page 90).7.2.5 Results data transfer with EthernetThe results data can be transferred after the sequence end (asynchronous) or before the sequence end(synchronous). The examples show a single-channel tightening.You can find a detailed sequence of the PLC signals in chapter “Control Signals” on page 55.Results transfer after sequence end(1)(A)(2) (3)(B)HCH x.y CyCmpCH x.y OkCH x.y ResRsLHLHLFigure 7–10:tChronological sequence for preparing and asynchronously transferring the tightening results after sequence end(A)Tightening(B)Transfer via FTPCH x.y CyCmp Sequence endCH x.y OK Tightening OKCH x.y ResRs Result reset(1) Cycle(2) Sequence(3) Result preparationSystem 350 | 3 608 878 040/05.2008