Rexroth Tightening System 350 System Documentation - Rhino ...

126/316 Bosch Rexroth AG | Tightening Technology 7 Data Services7.3 3964R communicationExample 240 data words should be transferred to data element 32.3964R protocolThe following are transferred:– Send telegram with DB 32 start address, DW 0 and a length of 64 data words.– Send telegram with DB 32 start address, DW 64 and a length of 64 data words.– Send telegram with DB 32 start address, DW 128 and a length of 64 data words.– Send telegram with DB 32 start address, DW 192 and a length of 48 data words.After transmission has been completed, the data elements are in the correct order in the assigned storagearea.RK512 protocolThe following are transferred:– Send telegram with DB 32 start address, DW 0 and a length of 240 data words (length listed intelegram header). The telegram contains 128 bytes=64 data words of data.– Sequence telegram with 128 bytes=64 data words of data– Sequence telegram with 128 bytes=64 data words of data– Sequence telegram with 96 bytes=48 data words of data– After transmission has been completed, the data element data is arranged into the correct order.Control informationThe control information contains:– The start character, which is acknowledged by the communication partner– The end ID, and a block check sum at the end of every telegramIf the check sum corresponds to the data that has been received, the communication partner acknowledgestelegram receipt with DLE (positive acknowledgement). If there is a negative acknowledgement(NAK), the telegram will be sent again.Control information is used for the send, sequence, and reaction telegrams.Reaction telegramsThe reaction telegram is only used with the RK512 protocol. It has a similar setup to the send telegram,however, it does not send any data, but just an error number in the telegram header. The error numbersin the (sequence) reaction telegram (see Tables 7–16 on page 123 or 7–17 on page 124) and the possiblecauses are listed in Table 7–20 on page 126.Table 7–20: Error numbers in reaction telegrams and possible causesError number(hex)Cause00 No error, transmission successful0aUser access to area not allowed, e.g. hardware storage space is too small.Command not supported, e.g. fetch *0cLength of the data received in the reaction telegram (or sequence reaction telegram) is too long/short.10 Byte 2 (telegram ID) and/or byte 4 (command type) in the command telegram not recognized.14 Data element does not exist or is not permittedData element too short (start address + length > area)System 350 | 3 608 878 040/05.2008