1771-CAS控制器1771-CAS控制器1771-CAS控制器PLC的容量包括I／O点数和用户存储容量两个方面。(一)I／O点数的选择PLC平均的I／O点的价格还比较高，因此应该合理选用PLC的I／O点的数量，在满足控制要求的前提下力争使用的I／O点***少，但必须留有一定的裕量。通常I／O点数是根据被控对象的输入、输出信号的实际需要，再加上10％~15％的裕量来确定。(二)存储容量的选择用户程序所需的存储容量大小不仅与PLC系统的功能有关，而且还与功能实现的方法、程序编写水平有关。一个有经验的程序员和一个初学者，在完成同一复杂功能时，其程序量可能相差25％之多，所以对于初学者应该在存储容量估算时多留裕量。PLC的I／O点数的多少，在很大程序上反映了PLC系统的功能要求，因此可在I／O点数确定的基础上，按下式估算存储容量后，再加20％~30％的裕量。存储容量（字节）＝开关量I／O点数×10＋模拟量I／O通道数×100另外，在存储容量选择的同时，注意对存储器的类型的选择。SCHRADERBELLOWSEPP33C81I65410NSPPEPP33C81I65410TEXASINSTRUMENTSPLC55PR8312000322USPP55PR8312000322ASEABROWNBOVERIACS501-025-4-0​0P5USPPACS501025400P5ASEABROWNBOVERI3BSE005177R000​1NSPP3BSE005177R000​1ASEABROWNBOVERIDSRF-171USPPDSRF171TEXASINSTRUMENTS500-5056**TEXASINSTRUMENTSPLC505-4032USPP5054032TexasInstrumentsMP6000ASEABROWNBOVERI086370-001NSFP086370001TEXASINSTRUMENTSPLCU-01PMUSPPU01PMTEXASINSTRUMENTS500-5019WORDOUTPUTMODULENEW5005019500-2151-ATexasInstrumentsTI500seriesPowerSupply5002151AN80(AA01)ACSERVODRIVERPANASONICMATSUSHITAMSD021P1EA01WORKINGASEABROWNBOVERI57360001-ANUSPP57360001ANFISHERROSEMOUNT2081-A-FFUSPP2081AFFRAYTHEONB34120-00-02-1USPPB3412000021ASEABROWNBOVERIDSQC116USPPDSQC116TEXASINSTRUMENTSPLCVPU-200-3102USPPVPU2003102PERCEPTRONDROPTERMINATOR3100790SIEMENSTI505-4316APLCNEWPARKERLA470617U001FNFPLA470617U001TexasInstruments505-4316PanasonicACServoMotorM***D082S1TFreeShip(AB01)ACSERVOMOTORPANASONICMQDB011AAD03(0190-19214)WORKINGNewandOriginalPanasonicACServoDriverMSDA043A1APERCEPTRONTRICAMLEDLIGHT923-0010~UsedPerceptron147SerialBoard495-0102-01093097-002USEDTEXASINSTRUMENTSPLC505-2571NSFP5052571SQUARED9998-SL11NSFP9998SL11SANYODENKIMC1K-U100USPPMC1KU100ASEABROWNBOVERIACS501-007-4-0​0P5USPPACS501007400P5INDRAMATRECO-G06-01-FWUSPPRECOG0601FWReturns:Acceptedwithin7daysALLENBRADLEY1336-B003-EOD-​L3USPP1336B003EODL3PERCEPTRON923-0010USPP9230010ASEABROWNBOVERIDSQC-249USPPDSQC249ASEABROWNBOVERIYT204001-BNUSPPYT204001BNNewinBox500-2153TITexasInstruments5002153N30TEXASINSTRUMENTSPLC565-2120NSPP5652120TEXASINSTRUMENTSPLC505-6202NSFP5056202TexasInstruments500-5114ABaseController500-5114-ATEXASINSTRUMENTSPLC505-4116USPP5054116TEXASINSTRUMENTSPLC500-5884USPP5005884TEXASINSTRUMENTSPLC435-DC-CPUNSFP435D***UTEXASINSTRUMENTSPLCPM550-5039USPPPM5505039SANYODENKIPU0B015-EML1P0​0USPPPU0B015EML1P00ASEABROWNBOVERIPSS105/181-500​FNSFPPSS105181500FTexasInstruments505-7002MODICON140-CRP-931-00FNFP140CRP93100ASEABROWNBOVERIDSCA-125AUSPPDSCA125ABAILEYCONTROLSIMFBS-01NSFPIMFBS01REXROTH0-608-820-099USPP0608820099Returns:NotacceptedSUNXLTDMS-SF1-BNSFPMSSF1BTEXASINSTRUMENTSPLC505-6516NSPP5056516SIEMENS6FC5-203-0AB12​-0AA0USPP6FC52030AB120A​A0PanasonicACServoDriverDriverMSD043A1XXEFreeShipTexasInstrumentsTIWAYI500-5039ACSERVODRIVERPANASONICMSD011A1XFreeShippingAMETEKZF2-480-60-UB-​01USPPZF248060UB01ASEABROWNBOVERIYT204001FK/1USPPYT204001FK1SIEMENS6ES5-312-5AA31USPP6ES53125AA31PANASONICMSD011P1EUSPPMSD011P1E)