| TheASC3 greatly simplifies oomnnunications between your oorrputer and A25E?3Dyou can use an absolute enooder for a wde variety of motion msasuremsnt or control appications It proVdesai thenecessarysigiastointerroc^eandreadinthedatafromLpto3encod TheAS}/3arndA25Stransmt andreceivedatase'iallybyR£>422linedriversandrecevers. TheA25Srequiresanactivelowinterrogatepulsetoinitiatea rotary-to-digta converson. lheAS^3generatesthissigia, andsendsit onaseparatelinesmultaneousytoeachof thethreeencoders Wien each encoder has convertedrotarypositionintodi^tal data,theASI?3startsreadingandshiftingtheserial dataintoitson-boardshift reg^stersTlheshift/readdockisgeneratedfor althreeahannesinunisoaYroucan^ Farameterssuchthequaityandlengthof thetransmsson lineandapplicationtiming requirementswiill affect the maximum baud rateallowable Thebaud ratecanbefrom28kr-Zto3.6M-Z, which correspondtomaximumdataupdateratesfrom1,000to 100,000encoder readsper second. Youcanasoconfigurethedatasze(from14to17bts) and parity (e/maodd)byjurrpersW^eyouare^ TheASC?3checksthe parity of theincomingdataand reportsanyerrorstothestatusregister, which aso has a" busy sigia" bit that you can poll. AternativeyyoucanassigianlRQlineandigiorethestatusregster, if desired. Asimpel/Oreadfromthecomputer will input thedatafromtheASI/3toyour E^AS}3interfaceboardcomeswWthacormp•ehenSveLSe•'sManua anda3.5" diskettecontainingtest and utility software and example programs for both DOSand^ndows®. |