TM 5-3895-374-24-1- Example of 20 mA current loop connection with a TSX7 programmable controller, fitted with aTSX-SCM2022 communication moduleExample of RS232C connection with compatible microcomputerStructure of theThe adjustment, command, control, and monitoring of the ATV-45 2 by serial link is carried out viaATV-45 2 datathe exchange of data or (objects) which are specific to that productEssentially, these comprise- BITS, called Bi (I = bit number) enabling the carrying out of logic commands(2 possible states 0 or 1)Example B7 = braking command bit- WORDS (16 bits) called Wi (i = word number) used to exchange complete numerical values(- 2768 to +32767), or, where necessary, a group of 16 independent logic states (these wordsare therefore known as registers)Examples W19 = frequency reference,W21 = fault register (16 fault bits)Notation W21,2 assigns the row 2 bit for register W21Access to the dataSome data is accessible in read and write this comprises the bits and words corresponding tosettings, references and commands As a general rule, this is the data used by the ATV-45 2On the other hand, data developed by the ATV-45 2 (signalling data, fault data, ) is only accessiblein read Writing of this data Is Illogical and will be refused(page 3-265)
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