InstallationABB Control - AC 31 Page 4-231SBC 260400 R1001-b 06.9950seriesmasterIW /OWO IW I O I62 63 63 64 63 64 64 AddressesCS 31 businterfaceRU I O IW/OWI/O O IW/OWX X+1 X+1 X.00 X+2 X+3 X.04 Addressesto toX.03 X.07RU I O IW I/O O OWAddresses X+4 X+5 X+5 X+4.00 X+6 X+7 X+4.00to toX+4.07 X+4.075.3.2. Addressing slave central unitsInformation exchanges between a master central unit and a slave central unit isn't limited tothe exchange of physical input/output variables. It is possible to exchange a data table, whosesize may be defined in bits or words, as follows:- bit exchange in 8 bit packets (1 byte) = from 2 bytes to 15 bytes.Address = ( 0 ≤ Y ≤ 61 )- word exchange from 1 to 8 words. Address = ( 0 ≤ Y ≤ 61 )(see chapter 6 - Program Optimization). The addressing of the slave central unit is done in the AC31GRAF software.The addressing of the central unit extensions is independent of the CS 31 bus addressing. It isdefined and managed by the slave central unit.X X+1 X+2 X+3 X+4 X+4 X+5 Addresses62 63 63 64 63 64 64 AddressesRU I I I/O I O OCS 31businterface50seriesmasterIW /OWO IW I O I50seriesslaveI I O IW/OWII/O OY 63 64 63 63 65 66 Addresses managed by theslave central unit
