SA07-020***;SA07-020***;SA07-020***PLC的编址就是对PLC内部的元件进行编码，以便程序执行时可以地识别每个元件。PLC内部在数据存储区为每一种元件分配一个存储区域，并用字母作为区域标志符，同时表示元件的类型。如：数字量输入写入输入映象寄存器（区标志符为I），数字量输出写入输出映象寄存器（区标志符为Q），模拟量输入写入模拟量输入映象寄存器（区标志符为AI），模拟量输出写入模拟量输出映象寄存器（区标志符为AQ）。除了输入输出外，PLC还有其他元件，V表示变量存储器；M表示内部标志位存储器；***表示特殊标志位存储器；L表示局部存储器；T表示定时器；C表示计数器；HC表示高速计数器；S表示顺序控制存储器；AC表示累加器。掌握各元件的功能和使用方法是编程的基础。下面将介绍元件的编址方式。存储器的单位可以是位（bit）、字节（Byte）、字（Word）、双字（DoubleWord），那么编址方式也可以分为位、字节、字、双字编址。1.位编址位编址的方式为：（区域标志符）字节号�位号，如I0.0；Q0.0；I1.2。2.字节编址字节编址的方式为：（区域标志符）B（字节号），如IB0表示由I0.0～I0.7这8位组成的字节。3.字编址字编址的方式为：（区域标志符）W（起始字节号），且有效字节为起始字节。例如VW0表示由VB0和VB1这2字节组成的字。4.双字编址双字编址的方式为：（区域标志符）D（起始字节号），且有效字节为起始字节。例如VD0表示由VB0到VB3这4字节组成的双字。ASEABROWNBOVERI5730030-DRUSPP5730030DRASEABROWNBOVERIPSD110-1MM4USPPPSD1101MM4ASEABROWNBOVERI1SDA054335R1NSPP1SDA054335R1TEXASINSTRUMENTSPLC305-17ADCNSPP30517ADCTEXASINSTRUMENTSPLC530C-1108USPP530C1108STARAutomationRobotTISiemens500-5114-ARemoteBaseControllerwRS485PortPLC500-5114A5005114ATEXASINSTRUMENTS530C-1108530C1108SIEMANSMODULEPanasonicKokusaiACServoDriveADKB400BPFADAworkingASEABROWNBOVERINDCU-21CNSFPNDCU21CASEABROWNBOVERID***B-137USPPd***b137MITSUBISHIAJ72-R25USPPAJ72R25TEXASINSTRUMENTSPLCPWB-2461414-00​01USPPPWB24614140001ASEABROWNBOVERI3BHB002916R010​1USPP3BHB002916R010​1ASEABROWNBOVERI58095141USPP58095141TexasInstruments505-4632PanasonicACServoMotorM***A082A1AFreeShipPANASONICACServoMotorM***A082C1BFreeShipTEXASINSTRUMENTSPLC555-1101NSPP5551101ALLENBRADLEY6158-AAAAAZAAZ​ZUSPP6158AAAAAZAAZZASEABROWNBOVERI57520001-CYUSPP57520001CYBYSTRONIC702109USPP702109ALLENBRADLEY1326AB-B520F-2​1-K5USPP1326ABB520F21K​5TEXASINSTRUMENTSPLCPM550-116USPPPM550116ASEABROWNBOVERI57510001-AA/3USPP57510001AA3ASEABROWNBOVERIS6D630W4NSFPS6D630W4ALLENBRADLEY1771-M1NSPP1771M1ASEABROWNBOVERIYB560103-BENSPPYB560103BETexasInstrument560-2128TEXASINSTRUMENTS500-5011OUTPUTMODULELOT5005011TexasInstruments500-503132ptLVDCoutput5005031SEWEURODRIVEMDV60A0015-5A3​-4-00USPPMDV60A00155A34​00XYCOM3406-000001000​0000NSFP34060000010000​00Panasonic3.0kWACServoMotor***302D1C(freeshipping)PanasonicACServoMotorMHMA202P1G2kW560-2122TITexasInstrumentsPowerSupply5602122CONTROLTECHNOLOGYINC901J-2572NSFP901J2572SQUARED8538-SCA44-V81​-CFF4PITUSPP8538SCA44V81CF​F4500-2109TexasInstrumentsTIDistributedBaseController5002109N742TexasInstruments500-5039NEW!ASEABROWNBOVERI57360001-KGUSPP57360001KGTexasInstrumentsSequencerType#571SEQUENCER!TexasInstruments500SystemPLCSeriesRack11ModulesTEXASINSTRUMENTSPLC505-4216ANSPP5054216AGEFANUCIC600LX648USPPIC600LX648DECBA11-SEUSPPBA11SEASEABROWNBOVERIYT212001-ABUSPPYT212001ABPanasonicServoDriveADKA500BPFADHworkingTexasInstrumentVPU200-3102OMRONF150-SLC20USPPF150SLC20SQUARED3050-SD-300-X1USPP3050SD300X1TEXASINSTRUMENTSPLC505-4808USPP5054808FOXBOROD3005PK-BBNSPPD3005PKBBALLENBRADLEY284D-FVD2P3Z-1​0-CR-3NSPP284DFVD2P3Z10C​R3TexasInstrumentsRTU-8701MEMORYEXBDRTU8701TEXASINSTRUMENTSPLCPM550-5040NSPPPM5505040TEXASINSTRUMENTSPLC5TI-5011NSFP5TI5011PanasonicNachiACServoMotorMFMA552D5V35.5kWNEWTEXASINSTRUMENTSPLC7MT-300NSFP7MT300ALLENBRADLEY1771-IFENSPP1771IFEASEABROWNBOVERIDSCS-116USPPDSCS116500-5056TexasInstrumentsSiemensTI32ptoutputmodule5005056N170PanasonicACServoMotorMFA100LB2BSA#5927TEXASINSTRUMENTSPLC500-2103NSPP5002103ALLENBRADLEY1336-C010-EADUSPP1336C010EADTEXASINSTRUMENTSPLC2490005-0001USPP24900050001TEXASINSTRUMENTSPLC505-4732USPP5054732ASEABROWNBOVERIMK14A-X020USPPMK14AX020ALLENBRADLEY1336F-BRF30-AA​-ENUSPP1336FBRF30AAENASEABROWNBOVERI58096067USPP58096067PerceptronDigitalTricamCameraSensor916-4104ALLENBRADLEY1326AB-B420ES2​LUSPP1326ABB420ES2LTexasInstruments500-5016Series500AnalogOutputModule5005016SIEMENSTEXASINSTRUMENTSPLCPM550-C-112USPPPM550C112TEXASINSTRUMENTSPLCU-01ZUSPPU01ZTexasInstruments500-5035TEXASINSTRUMENTS500-2151POWERSUPPLY5002151MODICONAS-9000-810USPPAS9000810)