ABB DSQC633A

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  PLC工作原理
 最初研制生产的 PLC主要用于代替传统的由继电器接触器构成的控制装置，但这两者的运行方式是不相同的：
    (1)继电器控制装置采用硬逻辑并行运行的方式，即如果这个继电器的线圈通电或断电，该继电器所有的触点（包括其常开或常闭触点）在继电器控制线路的哪个位置上都会立即同时动作。
     (2)PLC的CPU则采用顺序逻辑扫描用户程序的运行方式，即如果一个输出线圈或逻辑线圈被接通或断开，该线圈的所有触点(包括其常开或常闭触点)不会立即动作，必须等扫描到该触点时才会动作。
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厦门莫格电气自动化有限公司     
联系人：刘水仙（销售工程师）                                         
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主营产品：AB，ABB，GE，本特利，福克斯波罗，英维斯，西屋，艾默生，横河
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STANLEY ELECTRONIC NUTRUNNER ES40-081

CR OIL SEAL 32393 NIB

OSECO 4750MIN-5250MAX PSIG AT 600 DEG.F Y-5412-01 / 171.02150

ASHCROFT DURALIFE 0-200PSI PRESSURE GAUGE G250-2456-B

PTD NO.29 TWIST DRILL TAPER SHANK QT.12 NIB 052029

PTD HSS TWIST DRILL TAPER SHANK QT.12 NIB 018049

SS FLAT WASHER 800 IN BOX .406 X .812 X .051 / .080

LORELL WRENCH WORCESTER

COOPER ELECTIRC POWER TOOL 3200-5135 W/ PORTESCAP STEPPING MOTOR B1535H1726 NNB

CHIICAGO RAWHIDE OIL SEAL 41126 NIB

WIDELL 2.360-18 HSS HEXAGON THREAD DIE 320829

CHICAGO RAWHIDE UNIVERSAL JOINT NIB UJ351 102538

WIKA 0-4000PSI PRESSURE GAUGE KL 1.0 104930

PUNCHTECH PRESS PUNCH NNB 3551535A

LOVEJOY 19MM BORE COUPLING L-110

HUBBELL RELIEF CONNECTOR SHC1015 SEALED

DM0158 05 SPINDLE 30 TEETH

TREGASKISS TOUGH GUN 500A AIR-COOLED ROBOTIC WELDING MIG GUN 5404-35-422 *NIB*

DEUBLIN REPAIR KIT 6250-001C NIB

CUTLER HAMMER TWIST SWITCH 284901 NIB

CLECO GARDNER DENVER SERIES 55 ?" DRIVE PISTOL GRIP PULSE BOLT AND NUT SETTER

CR OIL SEAL 85080 NIB

NOSHOK -30-0-INHG -100-0kPA OIL FILLED GAUGE

FASTEST INTERNAL CONNECTOR NNB

DURA TAP 781-40

O'BRIEN MACHINE PUNCH 13/16" NIB

MARSHALL TOWN 0-1100kPA 0-160PSI PRESSURE GAUGE

MATSUSHITA 24VDC ALARM BUZZER EB1124

TELEDYNE ANALYTICAL INSTRUMENTS AIR PURITY METER REV.O 275R / Q000092

SKF OIL SEAL 100075 NIB

BARBER-COLEMAN TEMPERATURE CONTROLLER 580

CARR-LANE 95WCV WASHERS

ATLAS COPCO SERVO MOTOR 4230 1904 80

TOYOTA FLASH TUBE ASSEMBLY 00591-08380-81 NIB

GUHRING 8.00 HSS 8582

PIAB SUCTION CUP 150 ROD EXTENSION NIB 0109216 101034

HOFFMAN 24" LENGTH WIREWAY SECTION F44L24N PAINTED BLUE

TRUPAR BACKREST TA9014000 NNB

GOODYEAR INDUSTRIAL BELT B64 NIB

TEL-TRU THERMOMETER 0-150 C

BIMBA MRS-.087-BL-02 MAGNETIC REED SWITCH

BROWNING SPROCKET N22I100

TEXTRON POWER TRANSMISSION SWIFT KITS COG NIB

CLEVELAND TWIST DRILL .1724" SSW COLBALT REAMER TIN COATED NIB

ROPER PUMP CO. PUMP SEAL G14226

BELLOFRAM TRANSDUCER 961-075-000

VOGEL FILTER 169400130 NIB

RUSSELL & STOLL 2678-B

CYLINDER REBUILD KIT 84779010

ALRGAS REGULATOR 250

REPLACEMENT TRIPOD STAND BASE

BMP BUSHING 4000153984 NIB

ELECTRON BEAM QCC CONDUIT 120"

MORSE TIMING PULLEY NIB 24XL

RUTLAND .3750 HS TAPERED DRILL BIT 36-ZA-2646