厦门泰尼电气有限公司
主营产品: AB模块PLC |
厦门泰尼电气有限公司
主营产品: AB模块PLC |
参考价 | 面议 |
更新时间:2018-03-20 06:53:10浏览次数:258
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1746-P7 1746-P7
1746-P7 1746-P7
存储器由存储体、地址译码器和控制电路组成。
1)存储体是存储数据信息的载体。由一系列存储单元组成,每个存储单元都有确定的地址。存储单元通常按字节编址,一个存储单元为一个字节,每个字节能存放一个8位二进制数。就像一个大仓库,分成许多房间,大仓库相当于存储体,房间相当于字节,房间都有编号,编号就是地址。
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2)地址译码器将CPU发出的地址信号转换为对存储体中某一存储单元的选通信号。相当于CPU给出地址,地址译码器找出相应地址房间的钥匙。通常地址是8位或1 6位,输入到地址译码器,产生相应的选通线,8位地址能产生28=256根选通线,即能选通256字节。16位地址能产生216=65536=64K根选通线,即能选通64K字节。当然要产生65536根选通线是很难想象的,实际上它是分成256根行线和256根列线,256 X 256=65536,合起来能选通65536个存储单元。
GRACO 223-185 MONARK PRIMING PITON TRANSFER PUMP, RATIO
WILDEN M2 M-SERIES 2?" ORIGINAL METAL DIAPHRAGM PUMP
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TOTAL CONTROL SYSTEM 682-15-SP-L PISTON POS DISPLACEMEN
EXIDE SD3E-18 1050 DEPTH CHARGER, 36 VDC, CHARGE TIME 8
VERSA-MATIC CLAMPED METALLIC DOUBLE DIAPHRAGM VALVE, 2"
DAYKIN DD2-1-05-4850 AC / DC POWER SUPPLY, NNB
ROTORK / JORDAN CONTROLS SM-5000 PROCESS CONTROL ACTUAT
DAYTON 4MH86 18.25" BELT DRIVEN DOWNBLAST CENTRIFUGAL R
RITAL SK 3383 500 TopTherm BLUE E ROOF-MOUNT COOLING UN
SECURALL A110 FLAMMABLE LIQUID STORAGE CABINET, SELF-CL
AURORA PUMPS H4 S 114A BF TURBINE PUMP, NEW
SANYO DENKI KAWASAKI 2.1KW BL SUPER SERVO MOTOR 68BM092
YASKAWA AC SERVO MOTOR USADED-13YRW11
CONTROL TECHNIQUES 1.76HP AC SERVO MOTOR MHM-340-CBNS-0
MITSUBISHI 5.5/7.5KW FREQROL A-500 AC DRIVE FR-A540-5.5
FANUC ROBOTICS MODEL 10 AC SERVO MOTOR A06B-0501-B756
SIEMENS ABB ROBOTICS AC SERVO MOTOR 1FT3074-5AZ21-9?-Z
DANFOSS 10HP VLT 5000 AQUA VARIABLE FREQUENCY AC DRIVE
XYCOM INDUSTRIAL COMPUTER OPERATOR INTERFACE 9485
ALLEN BRADLEY ADJUSTABLE FREQUENCY AC DRIVE 1336S-BRF75
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BOSCH 520VAC 30A AC SERVO DRIVE SM 20/30 GTC
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INDRAMAT AC SERVO CONTROLLER TDM 1.2-100-300-W1-?000 DA
SEW-EURODRIVE 230/460V 1HP 48.00 RATIO GEAR MOTOR DFT80
PHOENIX CONTACT PC CONTROLLER BOARD 2719234 IBS PC ISA
AEG GETTYS PERMANENT MAGNET SERVO MOTOR M33Y-SNRA-YY0Y-?
SEW-EURODRIVE 230/460V 1HP 33.73 RATIO GEAR MOTOR DFT90
DYNICS TOUCH SCREEN OPERATOR INTERFACE CH12THI06C5W2F1?4
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BALDOR 208-230/460V15H?P 3500RPM AC MOTOR SPEC. 07H802W3
ALLEN BRADLEY 1.09KW AC SERVO MOTOR 1326AB-B420E-21
MARATHON ELECTRIC 230/460V 10HP 1745RPM BLUE CHIP AC MO
ALLEN BRADLEY PanelView 900 OPERATOR INTERFACE 2711-K9A
U.S. MOTORS HWN2502V53XU182?TCNM SERIES 2000 GEAR REDUCE
McLEAN M52-0816-003E 8000 BTU 1 PHASE SIDE MOUNT AIR CO
KEBA TEACH PENDANT HT401/0V-4x20/1?K4/24135 BTC 05.1B-PN