MicroMaster 6SE92 - ECT Sales & Service

MICROMASTERMICROMASTER VectorMIDIMASTER VectorCommunications/Interfaces• Multi-mode operation possible, whereby control data canbe input via the terminal block (digital inputs) and setpointover the serial bus. Alternatively, the setpoint can be froma local source (analogue input) with the drive control overthe serial bus.• All drive parameters are accessible over the serial link.The PROFIBUS module is a push fit into the front of the drive.The clip at the bottom must be pulled down to release themodule.Notes:1. PROFIBUS Module can only be inserted or removed from thedrive when the drive is powered off.9876543212. If the PROFIBUS Module is connected to the SUB-Dsocket on the front panel, then the internal RS 485connections of the 6SE32 drive (terminals 23 and 24)must not be used.3. PROFIBUS module must not be connected to the drivewith a cable.4. PROFIBUS module cannot be used simultaneously withthe Clear Text Display module.The data structure for communication over PROFIBUS-DP canbe either PPO type 1 or PPO type 3 as specified in VDI/VDE3689. This means in practice that process data (control words,setpoints in the transmitted telegram and status words, actualvalues in the received telegram) are always sent. Parameter dataexchange may, however, be blocked if bus bandwidth or PLCmemory space is at a premium. The data structure, and thus thePPO type, is normally specified by the bus master. If no PPO typeis specified (e.g. if a combined PROFIBUS DP/PROFIBUS FMSbus master is used), the default PPO type is type 1 (parameterdata exchange enabled).Process data from the serial link always has a higher prioritythan parameter data. This means that a setpoint change ordrive control change command will be processed faster thana parameter change command.Parameter write access over the serial link can be enabled orblocked as required. Parameter read access is permanentlyenabled, allowing continuous read-out of drive data,diagnostics, fault messages etc. A visualisation system canthus be realised with minimal effort.Local control of the drive with the On, Off, Jog and Reversebuttons is possible at all times in an identical fashion to whenthe module is not present.The PROFIBUS cable is connected to the 9 way SUB-Dsocket on the front of the PROFIBUS Module.Figure 5:Pin Layout of the PROFIBUS SUB-Dsocket connectorTerminal Function, information1 NC (not connected)2 NC3 Send- and receive line RS 485, two wire,positive differential input/output B/P4 Request to send (RTS)5 Reference potential, OV6 5V isolated power supply for terminationresistors7 NC8 Send and receive line, RS 485, two wirenegative differential input/output A/N9 NCTable 4:Pin assignment for the SUB-D socketconnectorThe shield of the cable must be connected to the housing ofthe SUB-D connector. The following cable lengths and datatransfer rates are possible.Data transfer rate(Kbit/s)9.619.293.75187.5500150012000Max. cable length of asegment (m)1200120012001000400200100Table 5:Maximum Cable Lengths for DataTransfer RatesSiemens DA 64 – 1998/99 (04/99) 5/5