6ES5900-7FC11
3-533-4266A
6FC5357-0BB21-0AE0
（2）中檔PLC除具有低檔PLC的功能外，還具有較強的模擬量輸入／輸出、算術運算、數據傳送和比較、數制轉換、遠程I/O、子程序、通信聯網等功能。有些還可增設中斷控制、PID控制等功能，適用于復雜控制系統。
·硬件措施：
（2）模塊式PLC模塊式PLC是將PLC各組成部分，分別作成若干個單獨的模塊，如CPU模塊、I/O模塊、電源模塊（有的含在CPU模塊中）以及各種功能模塊。模塊式PLC由框架或基板和各種模塊組成。模塊裝在框架或基板的插座上。這種模塊式PLC的特點是配置靈活，可根據需要選配不同規模的系統，而且裝配方便，便于擴展和維修。大、中型PLC一般采用模塊式結構。
·軟件措施：
系統管理程序主要控制PLC的運行，使PLC按正確的次序工作；用戶指令解釋程序將PLC的用戶指令轉換為機器語言指令，傳輸到CPU內執行；功能程序與系統程序調用則負責調用不同的功能子程序及其管理程序。
系統程序屬于需長期保存的重要數據，所以其存儲器采用ROM或EPROM。ROM是只讀存儲器，該存儲器只能讀出內容，不能寫入內容，ROM具有非易失性，即電源斷開后仍能保存已存儲的內容。
EPEROM為可電擦除只讀存儲器，須用紫外線照射芯片上的透鏡窗口才能擦除已寫入內容，可電擦除可編程只讀存儲器還有E2PROM、FLASH等。

用戶程序存儲器用于存放用戶載入的PLC應用程序，載入初期的用戶程序因需修改與調試，所以稱為用戶調試程序，存放在可以隨機讀寫操作的隨機存取存儲器RAM內以方便用戶修改與調試。
按照摩爾定律的穩定發展，使得我們擁有了海量處理能力的機器。企業能夠處理TB甚至PB級數據，從而強化決策層管理，不斷發現新市場，優化過程。對于制造商而言，***的挑戰是收集數據并根據數據采取措施。為解決這一問題，目前涌現出三大技術趨勢
通過修改與調試后的程序稱為用戶執行程序，由于不需要再作修改與調試，所以用戶執行程序就被固化到EPROM內長期使用。
聯系人：李工銷售工程師
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Handheld2070-1ACordlessBarcodeScanningSystemBaseHandHeld
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Agastat7022ADTimeDelayRelay
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14503953-001
FujikinInternational,3-WayValve,FPR-UDDF-71-9.25,DD1024699UFV024.416626
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3AMAT0021-35946REVP8EdgeRing
AMAT0140-02419Rev.001,HarnessAssembly,PressureXDUCER,CVD,300mm.417691
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MilliporeMFCFC-2979MEP5,C5F8,30SCCM,ML01233002
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MilliporeWG2F06WR1GasFilter,419261
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Force10Force10749-01013-02600-00528-03PCBBoardSTATICSEALED
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STECMFCMASSFLOWCONTROLLERSEC-4400MSEC-4400MCN2100SCCM50SCCM402502
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NorcalProducts810-00347KF40IsolationValve,StaggeredPort,422285
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SolaHevi-dutyGLD-01-110GLseries110w5v22a
NANOMETRICS8200-028757PCADCDISTATLASXPFAB8300-028757401828
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LufranAN3-3-5CAnnunciatorPCBwith5possitiondisplay
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ComdelMatchProCPMX-2500,FP2300R1,39227-00-1,400940
Leica30111250CLS100xLampPowerSupply,powerson
OEMHPA5506-69102100Base-TXLAN4-portHostAdaptorBoardStaticSEALED
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MykrolisFC-2902MEP5-TMFC,MassFlowController,N2,5SLPM,416055
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IVOGmbHGEMMW.A208P23DualTurnEncoder
01-2833Mountingbracket
Novellus02-140949-00REVCMainsystemstartstopmodule
Automotion4009-2ALC06OR-010-1011ServoMotorController,1Phase,115V,416541
NXL0150A1001
MKSBaratronCT27A13TDC910,1000TORR,24VDC
Honeywell621-1160RInputModuleNOBOX
AppiledMotionProducts3540IStepMotorDriver,420658
QtyAvailableOEMGenuineIBM90H3567MaintenanceKit
AMATTopSourceRFGeneratorCable,3-A3-P1,TRU-8704-98T,Match1-A2-P1,401055
Luxtron5001-1221-00-00,singlechannellineararrayOPTICAL,XINIX
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NUPRON74018,6L-LDA-1B1PX-KHighpuritycleanroomvalve
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2StecLF-410A-EVDLiquidMassFlowControllerTEOS7g/min
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MBNFC-2251FlangeBearing
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Numatics225-259BSolenoid
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airbearingSpindleFederalmogulWestwind.1073-69
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