SIEMEN***OORE16137-116模块;SIEMEN***OORE16137-116模块;SIEMEN***OORE16137-116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。TEXASINSTRUMENTS500-5018WORDINPUTMODULENEW5005018TEXASINSTRUMENTSPLC505-5518USPP5055518CTICRYOGENICS8112105NSPP8112105GEFANUC44A391712-G02USPP44A391712G02ASEABROWNBOVERI3AFE61004955USPP3AFE61004955REXROTH0-608-820-099USPP0608820099ASEABROWNBOVERIPSS105/181-500​FNSFPPSS105181500FTEXASINSTRUMENTSPLC55UA8110001025USPP55UA8110001025ASEABROWNBOVERI3HAB8797-1/2BUSPP3HAB879712BTEXASINSTRUMENTSPLC505-4216AUSPP5054216AMITSUBISHISJ-4-V7.5-11TNSFPSJ4V7511TGENERALELECTRICDS3800HXPA1D1DUSPPDS3800HXPA1D1DASEABROWNBOVERI57520001-FY/3USPP57520001FY3GEFANUCIC600LX605NSPPIC600LX605TEXASINSTRUMENTSPLC944935-8001USPP9449358001HONEYWELL51401491-100USPP51401491100ASEABROWNBOVERI3BSE018157R1USPP3BSE018157R1TexasInstrumentsPM550-301NSKEE1410A05-24.1USPPEE1410A05241SIEMENSTI575-2102VMEPLCPanasonicM***022A1AEACServoMotorPanasonicACServoDriverMADDT1205003NIBFreeShipPanasonicACServoDriveMQDB011AAD03new0190-19214ACCURAY18383-004USPP18383004XYCOMPM8500USPPPM8500FANUCA80L-0001-0273USPPA80L00010273DANFOSS175L3216NSPP175L3216TEXASINSTRUMENTS2461452**TexasInstruments305-PROGHONEYWELL30752783-001USPP30752783001TEXASINSTRUMENTSPLC2360013-0001USPP23600130001SiemensTI565PLCMemoryCard560-2134NEXENGROUP912743NSFP912743PERCEPTRON911-0007USPP9110007ASEABROWNBOVERIHIEE300025R2NSFPHIEE300025R2PANASONICACSERVOMOTORMQMA011A2BNEWPANASONICServoMotorMQMA022P1SCNC/ROUTERKOLLMORGENINDSERVOST***03ASUSPPSERVOST***03ASPANASONICMFA024LA2NS240W3500RPMACSERVOMOTOR*NNB*TexasInstrumentsSINECH1505-CP1434TFALLENBRADLEY1771-NT1USPP1771NT1(AB01)PANASONICADKB400BPFADAACSERVODRIVEUNITWORKINGTEXASINSTRUMENTSPLC505-6108NSPP5056108ASEABROWNBOVERI3HAB2207-1USPP3HAB22071TEXASINSTRUMENTSPLC315-DDUSPP315DDASEABROWNBOVERI57360001-K/7USPP57360001K7TEXASINSTRUMENTSPLC5TI-1032-1USPP5TI10321NewPanasonic/NaisServoM***D042P1U+MBD​​DT2210TEXASINSTRUMENTSPLC500-5006NSFP5005006FujiHensokukiCOGeardMotorMT-9-5.4-002LAPanasonicACServoMotorMQMA022P2BI***620-1631USPP6201631ASEABROWNBOVERI3HAA3563-AMA/0USPP3HAA3563AMA0TEXASINSTRUMENTSPLC5136-DNS-200X-​8DINSFP5136DNS200X8DITEXASINSTRUMENTSPLC0983801-0003USPP09838010003PANASONICM***041A2USERVOMOTOR400WMatsushitaFreShipMODICON110-CPU-612-03NSFP110CPU61203TEXASINSTRUMENTSPLC560-2820NSFP5602820ASEABROWNBOVERIPM665NSFPPM665TEXASINSTRUMENTS500-5047-A**GENERALELECTRIC12SLR12A1AUSPP12SLR12A1ATEXASINSTRUMENTS500-5019WORDOUTPUTMODULENEW5005019TEXASINSTRUMENTSPLC505-2557USPP5052557PanasonicServoDriveMSD203A1VV200-230V2KWFreeShipTEXASINSTRUMENTSPLC500-2103USPP5002103Panasonic2.0kWACServoMotorM***A202D1D(freeshipping)SANYODENKIPU0A015-EM51P0​0USPPPU0A015EM51P00RELIANCEELECTRIC0-51901-ANSPP051901ACISCOCISCO2650XMUSPPCISCO2650XMKEYENCECORPVG-035NSFPVG035TEXASINSTRUMENTSPLC505-6204USPP5056204TEXASINSTRUMENTSPLC500-2101USPP5002101ELECTROCRAFTPDM10USPPPDM10ASEABROWNBOVERILSB-6-3-600-LU​M2USPPLSB63600LUM2TEXASINSTRUMENTSPLCVPU-200-3102USPPVPU2003102XYCOMXVME-540NSPPXVME540ASEABROWNBOVERIOES200J3FCNSPPOES200J3FCFOXBORO138SP-4-EUSPP138SP4ECONTROLTECHNIQUESUD52USPPUD52)