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General information

Notes and explanations

General introduction Master profiles Different profiles characterising performance have been defined for AS-i masters. For the further development of the slave functions the “new” functions have also been integrated in the master profiles. The following table shows the compatibility between master and slaves. The master profiles can be found in the data sheet.

Profile Functionality M0 cyclical data exchange, only binary data,no extended addressing mode M1 like M0, in addition analogue data and acyclical AS-i parameters M2 cyclical data exchange and acyclical AS-i parameters M3 like M1, complemented by the extended addressing mode (62 slaves),analogue protocols S-7.3x and S7.4 x. M4 like M3, complemented by data protocols for byte transmission AS-i characteristics Topology (wiring) tree structure, line, line with spurs, ring, star Medium unscreened two-wire cable(e.g. H05VV-F2 x 1.5; AS-i flat cable) Signals data and energy via one cable, max. 8 A Cable length 100 m, expansion via repeaters possible Number of the slaves per line up to 62 slaves Useful data per slave 4-bit data (cyclical, 4-bit parameters (acyclical),4 bits with data protocol (multiplex) Number of the binary I/O(cyclical) 124 I/O (single slaves),248 I + 186 O (A/B slaves) Analogue value processing channels possible via the slave profile S 7.3 Number of the analogue I/O(acyclical) 124 words Data transmission,parameter setting several bytes, unidirectional / bidirectional Number of the masters / lines optional via multimaster, controller or gateway Due to the safeunscreened data transmission AS-i can transfer signals even via slip rings. Cycle time 5...10 ms Access method cyclical polling, single-master system Addressing permanent, clear address in the slave Fault detection identification and repetition of corrupted messages

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Bus system AS-Interface 2008/2009 - 544 10