YASKAWA IM 208-1DPx1 Manual

YASKAWA IM 208-1DPx1 Manual Manual pdf 63 page image

Manual VIPA System 200V Chapter 3 DeploymentHB97E - IM - RE_208-1DPx1 - Rev. 14/05 3-29PROFIBUS installation guidelines• A PROFIBUS DP network may only be built up in linear structure.• PROFIBUS DP consists of minimum one segment with at least onemaster and one slave.• A master has always been deployed together with a CPU.• PROFIBUS supports max. 126 participants.• Per segment a max. of 32 participants is permitted.• The max. segment length depends on the baud rate:9.6 ... 187.5kbaud → 1000m500kbaud → 400m1.5Mbaud → 200m3 ... 12Mbaud → 100m• Max. 10 segments may be built up. The segments are connected viarepeaters. Every repeater counts for one participant.• The bus respectively a segment is to be terminated at both ends.• All participants are communicating with the same baud rate. The slavesadjust themselves automatically on the baud rate.• Only one fiber optic master may be used on one line.• Multiple masters may be deployed with a single CPU as long as they arelocated on the same backplane bus (please take care not to exceed themax. current consumption).• The maximum length of a FO link between two slaves may not exceed300m with HCS-FO and 50m with POF-FO, independent from the baudrate.• The number of bus participants depends on the baud rate:≤ 1.5MBaud → 17 participants incl. master3MBaud → 15 participants incl. master6MBaud → 7 participants incl. master12MBaud → 4 participants incl. master• The bus does not require termination.Note!You should place covers on the unused sockets on any fiber optic device(e.g. the jack for the following participant at the bus end) to prevent beingblinded by the light or to stop interference from external light sources. Youcan use the supplied rubber stoppers for this purpose. Insert the rubberstoppers into the unused openings on the FO interface.PROFIBUS ingeneralFiber optic system