1785-L80E输出模块;1785-L80E输出模块;1785-L80E输出模块PLC是按什么样的工作方式进行工作的？它的中心工作过程分哪几个阶段？在每个阶段主要完成哪些控制任务？下面来回答这个问题：PLC是按集中输入、集中输出，周期性循环扫描的方式进行工作的。它的中心工作过程分输入采样阶段、程序执行阶段、输出刷新阶段。在输入采样阶段，首先扫描所以输入端子，并将各输入状态存入相对应的输入映像寄存器中，此时输入映像寄存器被刷新，它与外界隔离，其内容保持不变，直到下一个扫描周期的输入采样阶段。在程序执行阶段，PLC按从左到右、从上到下的步骤顺序执行程序。在输出刷新阶段中，元件映像寄存器中所有输出继电器的状态一起转存到输出锁存器中，通过一定方式集中输出，***后经过输出端子驱动外部负责，在下一个输出刷新阶段开始之前，输出锁存器的状态不会改变。ASEABROWNBOVERI3HAA3563-AMA/0USPP3HAA3563AMA0TEXASINSTRUMENTSPLC535-1212USPP5351212TEXASINSTRUMENTSPLC500-5022NSFP5005022PanasonicACServoDriverMCDDT3520003FreeshipGEFANUCIC600BF945USPPIC600BF945TEXASINSTRUMENTSPLC505-4216ANSFP5054216AOMRONIDSC-C1DR-A-EUSPPIDSCC1DRAETEXASINSTRUMENTSPLC961642USPP961642NOS!TEXASINSTRUMENTS4POINTPARALLELINPUTMODULE7MT-3007MT300MITSUBISHIMDS-A-CR-55USPPMDSACR55TexasInstrumentsWAM1655575Board*60DAYSWARRANTY!*ASEABROWNBOVERI1923RA00140000​0STDUSPP1923RA00140000​0STexasInstruments530-1102TEXASINSTRUMENTSPLC7MT-700NSFP7MT700TEXASINSTRUMENTSPLC305-01ABNSFP30501ABFUJIELECTRICB128C-2ANSFPB128C2APanasonicACServoDriverMSD083A1XGFreeShipCINCINNATIMILACRON3-531-2996AUSPP35312996APanasonicMinasACservodriveMSD011A1XXDYNAMATIC15-902-100USPP15902100TEXASINSTRUMENTSPLC545-2501USPP5452501ASEABROWNBOVERISK-0015NSPPSK0015TISiemens500-21515002151PowerSupply2151APLC,PictureprovideuponrequestALLENBRADLEY1336S-BRF15-AE​-EN5NSFP1336SBRF15AEEN​5ALLENBRADLEY284D-FHD6P0D-2​5-CR-3NSFP284DFHD6P0D25C​R3TEXASINSTRUMENTSPLC505-2555USPP5052555ASEABROWNBOVERI57775840NSFP57775840SIEMENS6ES5-946-3UA21USPP6ES59463UA21TEXASINSTRUMENTSPLC500-5011NSFP5005011PanasonicMFA150LB5NPJACServoMotorTISiemens500-50545005054RedundantTiwayPeerlinkPLCLAMBDALM-EE014USPPLMEE014TEXASINSTRUMENTSPLC505-4632NSFP5054632ExpeditedshippingailableTexasInstruments500-2109CommunicationModuleAssemblyMOOREPRODUCTS16201-1-7NSPP1620117ASEABROWNBOVERI57088630USPP57088630PANASONICMDDFT5325***152S1C1.5KWACSERVOMOTORSETTEXASINSTRUMENTSPLC315-DDNSPP315DDPanasonicMFA075LD5NSJACServoMotor750WSIEMENS6SL3353-6TE411​CA3NSFP6SL33536TE411C​A3ASEABROWNBOVERIGNT0137211P5USPPGNT0137211P5ASEABROWNBOVERI086362-001NSFP086362001PanasonicMinasACservodriveMSD011A1XXTexasInstrumentsRTU84502ModemBoardTEXASINSTRUMENTSPLC505-5516USPP5055516TEXASINSTRUMENTSPLC505-7359USPP5057359TEXASINSTRUMENTSPLC500-5013NSPP5005013TEXASINSTRUMENTSPLC500-7103USPP5007103Panasonic2.0kWACServoMotorM***A202D1D(freeshipping)RELIANCEELECTRIC9101-0377USPP91010377TEXASINSTRUMENTSPLC555-1101USPP5551101TexasInstrumentsSINECH1505-CP1434TFASEABROWNBOVERI3GAA092302-ASA​G1NSPP3GAA092302ASAG​1TEXASINSTRUMENTSPLCVPU-200USPPVPU200ASEABROWNBOVERIPSS105/181-500​FNSFPPSS105181500FASEABROWNBOVERIACS550-01-038A​-4NSFPACS55001038A4TEXASINSTRUMENTSPLC500-5032USPP5005032USEDPerceptron390-0049Enna17Monitor0520776002TEXASINSTRUMENTSPLC505-CP1434TFNSFP505CP1434TFALLENBRADLEY1326AB-B410G-2​1-K4USPP1326ABB410G21K​4TEXASINSTRUMENTSPLC560-2132USPP5602132TexasInstruments100-3101ProgrammerTI101#7650TEXASINSTRUMENTSPLC505-6851USPP5056851SQUAREDMAP36500USPPMAP36500PanasonicMFA150LB5NPJACServoMotorMODICON171-CCC-980-30FNFP171CCC98030CUTLERHAMMERMES3800LSINSFPMES3800LSIALLENBRADLEY8000-LBNSFP8000LBTEXASINSTRUMENTSPLCRTU-8635-SSDNSFPRTU8635SSDTEXASINSTRUMENTSPLC7MT-600USPP7MT600FUJIELECTRICB128C-2ANSFPB128C2AOnePanasonicACServoMotor***202A1GFreeShipSQUARED3050-SD-300-X1USPP3050SD300X1PanasonicACServoDriveMBDHT2510EFreeShipPOWERTECINDUSTRIALMOTORSINCC002.5R2CH000USPPC0025R2CH000PanasonicACServoDriverMSD013A1XX07FreeShipTexasInstruments555-1101)