6ES5458-7LA11控制器6ES5458-7LA11控制器6ES5458-7LA11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。ASEABROWNBOVERIYB161102-ACUSPPYB161102ACOMRONCS1W-SLK21USPPCS1WSLK21ASEABROWNBOVERI57310001-CX/5USPP57310001CX5METRAINSTRUMENTS611-0011-000USPP6110011000PanasonicMinasACServoDriverMSD041A1XXDriveTEXASINSTRUMENTSPLC164-1114NSFP1641114ALCATEL210SDMLAMNSFP210SDMLAMPanasonic2.0kWACServoMotorM***A202D1D(freeshipping)TEXASINSTRUMENTSPLC500-5035USPP5005035ASEABROWNBOVERIOETL-NF1600SWUSPPOETLNF1600SWTexasInstrumentsPM550-224TELEMECANIQUETPMXP57102USPPTPMXP57102TEXASINSTRUMENTSPLC560-2134NSPP5602134ASEABROWNBOVERI3DDE-300-400USPP3DDE300400ALLENBRADLEY1770-SBUSPP1770SBRELIANCEELECTRIC0-51419NSFP051419ExpeditedshippingailableTexasInstruments505-4732TEXASINSTRUMENTSPLC2223050-0004USPP22230500004FANUCA06B-6077-H106USPPA06B6077H106ASEABROWNBOVERI3HAB2214-1/1USPP3HAB221411TEXASINSTRUMENTSPLC305-25TUSPP30525TTEXASINSTRUMENTSPLC505-7012USPP5057012MKSINSTRUMENTS127AA-000.1BUSPP127AA0001BAPICONTROLSPS-3306I-E-C10​4NSPPPS3306IEC104PANASONICACSERVODRIVERMSDA043A1A200/230VH1.8AUSEDASEABROWNBOVERI5730030-DNUSPP5730030DNSONICS&MATERIALSVC-130SUSPPVC130SSIEMENSLMG-90USPPLMG90OMRONF150-SLC20USPPF150SLC20TexasInstrumentsSINECH1505-CP1434TFTexasInstruments30504Bw/32507/305-20N/305​-20TTEXASINSTRUMENTSPLC430-CPUNSPP430CPUASEABROWNBOVERIP1040QNSFPP1040QNewPanasonicNachi-Fujikosh​iM***082Q3DServoMotorNIBTEXASINSTRUMENTSPLC435-DC-CPUUSPP435D***UENDRESS&HAUSERFMR240-S3K1ALJ​AA4AUSPPFMR240S3K1ALJA​A4TEXASINSTRUMENTSVPU500-3104VIDEOPROGRAMMINGUNITTEXASINSTRUMENTSPLC500-2153NSFP5002153505-7038TexasInstruments/Si​emensTI5057038R33IDECMX1A-MK597BNSPPMX1AMK597BASEABROWNBOVERID***C-110NSPPD***C110ASEABROWNBOVERI3GAA092302-ASA​G1NSPP3GAA092302ASAG​1TEXASINSTRUMENTSPLC505-6860USPP5056860ASEABROWNBOVERIQK-140-2R6500USPPQK1402R6500***ARTEKT-BOXUSPPTBOXTEXASINSTRUMENTSPLC505-6851BNSFP5056851BTELEMECANIQUETSX-ETZ-510USPPTSXETZ510ASEABROWNBOVERIDSSR-115USPPDSSR115TEXASINSTRUMENTS30505BPROGRAMMABLECONTROLLERASSEMBLYREIS101122USPP101122TEXASINSTRUMENTSPLC140-1111USPP1401111CONTROLTECHNIQUES95UME400CACAANSPP95UME400CACAAPanasonicACServoMotorMHMD042P1UFreeShipPanasonic750WServoDriverMCDDT3520L01(freeshipping)TEXASINSTRUMENTSPLC565-2820USPP5652820RHPBEARING7922NSFP7922ASEABROWNBOVERIYB161100-BBUSPPYB161100BBTexasInstruments305-PROGTEXASINSTRUMENTS110V16POINTINPUTMODULE#500-5001texasinstrumentscardmoduleplc500-503550050352462150-00124621500001PANASONICACSERVODRIVEDV80X050LD4DV80X050LD4DV80X-050LD4HITACHISEIKINEWSIEMENSTEXASINSTRUMENTSOUTPUTMODULE500-5012)