扫描周期:是PLC每执行一遍从输入到输出所需的时间.

　　工作过程是

　　1.输入现场信号:在系统的控制下,顺序扫描各输入点,读入的输入点的状态.

　　2.顺序扫描用户程序中的各条指令,根据输入状态和指令内容进行逻辑运算.

　　3.并输出控制信号,根据逻辑运算的结果,输出状态寄存器向各输出点发出相应的控制信号.实现所要求的逻辑控制功能.

　　福州卓凯电子科技有限公司

　　★★★★★★★★★★★★★

　　★销售服务

　　【服务说明】现货配送至全国各地含税含运费

　　【产品质量】全新原装正品，有发票

　　【产品优势】专业销售 薄利多销 信誉好，价格低，货期短，服务周到

　　★★★★★★★★★★★★★

　　HONEYWELL YAMATAKE FL7T-P5A6 SENSOR

　　HORTON 800000

　　HOTWATT HEATER 4500W 240V 0107

　　HP 5082-7732 LED DISPLAY (17 PCS)

　　HTCA AIR CYLINDER 00-001

　　HTD DRIVE PULLEY 56 14M 40E

　　HUB CITY 266 5/1 R 56C 1.00 0220-62333 GEARDRIVE

　　HUBBELL 309-8H HID LIGHTSCAPER BULLET WITH BALLAST 3098H

　　HUBBELL 3762C TWIST LOCK

　　HUBBELL 3763C TWIST-LOCK

　　HUMBOLDT H-13520 GLASS TUBING CUTTER

　　HUMPHREY 250HD

　　HUMPHREY 501A 1/2" AIR OPERATED 2-3 WAY VALVE

　　Humphrey S125 Shuttle valves & Air distributor

　　Humphrey solenoid valve 052-4E1-35-70-80 12VDC coil

　　HUNGER VD 2 45/30 DEGREE VALVE SEATING TOOL

　　HYATT BEARING 2426 DELCO HYSTER 206509

　　HYCAC CLOGGING INDICATOR VR2-H.0

　　HYCON FILTER ELEMENT 0060D020BNHC

　　HYDAC ?? FILTER ELEMENT 0110D010BNHC

　　HYDAC CLOGGING INDICATOR VM5-BM.1

　　HYDE PARK ULTRASONIC PROXIMITY SENSOR SM506A100 OSISENSE

　　HYDRO LINE ROD KIT W/ BUSHING FOR CYLINDER LOD-CYL-31 RB , N5-660-20

　　HYDRONORMA GP61-4-A GP614A SOLENOID

　　HY-PRO hydraulic filter HP170L10-12MB

　　HY-PRO hydraulic filter HP33DHL7-12MB

　　HY-PRO hydraulic filter HP33DNL14-12MB

　　HY-PRO hydraulic filter HP50L8-3MB

　　HY-PRO hydraulic filter HPKL18-12MB

　　HYSTER BEARING 206507

　　HYSTER BEARING 206517

　　HYSTER BRUSH SET 245967

　　HYSTER MILWAUKEE RESISTOR 10 OHM 2 OHM

　　HYSTER MILWAUKEE RESISTOR 10 OHM 2 OHM

　　Hytrol 032.582 Power Supply, 27 VDC, 3.7 Amp

　　Hytrol 033.09002 (Automation Controls Group – SMC?) Flat DC Motor controller

　　Hytrol 033.09002 (Automation Controls Group – SMC?) Flat DC Motor controller

　　Hytrol EZ Logic system – 8 cables from spare parts

　　Hytrol EZ Logic Zero force conveyor controller P/N 032.501

　　Hytrol EZ Logic Zero force conveyor controller P/N 032.501

　　HYTROL HABASIT CONVEYOR BELT PM100RCOS-W 6" WIDE , 30" 11" LONG

　　Hytrol IOP Cable 4 Taps, 2 ft. apart

　　ICORE 13635-01F PC BOARD

　　Icore Check weigher I/O Power board D20568-01

　　IDEC LTXD-120R

　　IDEC PS5R-B24 POWER SUPPLY PS5RB24

　　IFM CABLE E7001S

　　IFM E70213 CABLE

　　IFM EFECTOR SENSOR OB5022

　　IKO BEARING NAST17ZZUUR

　　IKO BEARING NAST25ZZUR

　　IKO BEARING NAST30ZZUU

　　IKO LINEAR WAY LWLC20 B

　　IMS RPGC-4CH JAW

　　INA CAM FOLLOWER KR30PP (4 PCS)

　　INA CF8-1PPSK CAMFOLLOWER (6 PCS)

　　INA NK30/20 BEARING (2 PCS)

　　INA PILLOW BLOCK BEARING RASEY 3/4 858609

　　INCOE HEATER KH-520 340W 230V

　　INCOE HEATER XRC II XRH 5310A 230V 480W

　　INCOE XRH 5260 230V 480W

　　INDEXABLE BARREL A301 MITSUBISHI 0920K196 DIE FEEDER (4 PCS)

　　INDUSTRIAL TIMER CSF 5 MIN

　　INFITEC TIME DELAY RELAY MMR1502C

　　Ingersoll Rand EL1007B Electric Torque Screwdriver AND Power Supply EC24N

　　Ingersoll Rand EL2603N Electric Torque Screwdriver

　　INGERSOLL-RAND ? REGULATOR CQ493-600-2

　　INGERSOLL-RAND 3/8 REGULATOR CQ493-600-3

　　INGOLD INFIT 764-50

　　Intelligent Automation Model IAI-TEY actuator programmer

　　INTER SPEED GEAR A06227-0014

　　Intercon 1 VCP-10-S cable for Video camera

　　International Power IHC24-2.4 24 VDC power supply

　　INTERROLL SPEED CONTROL GRAVITY BRAKE

　　INTRONICS MULTI FUNCTION MODULE MF433

　　IR RECTIFIER 100PB6P

　　ISCO OPTICAL AV 90MM F/2.8 MC (USED)

　　ISHIDA NLC-6L LOAD CELL 140 MM LC NLC 6L

　　ISSC PROXIMITY SENSOR T12-D310