The Logical Design of a Third Generation Numerical Control System |
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Page 44
... complement " is taken of this result an additional subtraction is required . Consider the following : Since fif ... ten's complement " of the desired result ( decimal 3 ) . This solution of five minus eight can be recognized much more ...
... complement " is taken of this result an additional subtraction is required . Consider the following : Since fif ... ten's complement " of the desired result ( decimal 3 ) . This solution of five minus eight can be recognized much more ...
Page 46
... complement " the result is First decade subtraction : 8 = 1000 minus 1 = 0001 0111 = 7 Second decade subtraction ... ten's complement " form ; if two , two digit numbers are being considered , the solution is in " hundred's complement ...
... complement " the result is First decade subtraction : 8 = 1000 minus 1 = 0001 0111 = 7 Second decade subtraction ... ten's complement " form ; if two , two digit numbers are being considered , the solution is in " hundred's complement ...
Page 60
... complement " of this number ( 99.4000 ) . An exclusive- nor gate is used to decode a decimal O and a decimal 9 when the sixth count from the serial sequencing counter is detect- ed ( tens ... ten - thousandth decades must be zero for both the ...
... complement " of this number ( 99.4000 ) . An exclusive- nor gate is used to decode a decimal O and a decimal 9 when the sixth count from the serial sequencing counter is detect- ed ( tens ... ten - thousandth decades must be zero for both the ...
Common terms and phrases
absolute data input acceleration logic analog BCD numbers Bidirectional binary-coded decimal Boolean expressions borrow output chips circuitry clock input command number command point command register command signal control section controlled mechanism count count-down mode count-up mode data input section decade of subtraction decade subtraction decode digital-to-analog conversion discrete diodes end-of-block signal error counter error signal output exclusive-nor gate fan-in FF's fifteen's complement half subtractor hundred's complement in-position incremental feedback incremental pulse incremental system input signals integrated circuit J-K flip-flops logic gates machine tool table machine zero minuend minus mono-shot nand gates numerical control system operation order Includes machines position number position register position signals printed circuit cards proper decades punched tape rapid-traverse speed reset row counter sequencing logic serial sequencing counter servo-drive shown in Figure significant decade silicon-controlled rectifi slow-down logic slow-down point Subtract six subtractor outputs subtrahend switch tape reader ten's complement truth table voltage