***处理单元(CPU)是PLC的控制***，是PLC的核心起******的作用，每套PLC至少有一个CPU。它按照PLC系统程序赋予的功能接收并存储从编程器键入的用户程序和数据；检查电源、存储器、I/O以及警戒定时器的状态，并能诊断用户程序中的语法错误。当PLC投入运行时，首先它以扫描的方式接收现场各输入装置的状态和数据，并分别存入I/O映象区，然后从用户程序存储器中逐条读取用户程序，经过命令解释后按指令的规定执行逻辑或算数运算的结果送入I/O映象区或数据寄存器内。等所有的用户程序执行完毕之后，***后将I/O映象区的各输出状态或输出寄存器内的数据传送到相应的输出装置，如此循环运行，直到停止运行。
CPU速度和内存容量是PLC的重要参数，它们决定着PLC的工作速度，I/O数量及软件容量等，因此限制着控制规模
MOST EXTENSIVE TEST CAPABILITIES IN AUTOMATION INDUSTRY
NEW YASKAWA JAMSC-IF60 PLC Module Memocon-SC JAMSCIF60 NIB
NEW YASKAWA JAMSC-IF61V,JAMSC-IF61,IF61 COMM,MEMOCON-SC,COMM Alternate,BOXYT
NEW YASKAWA JAMSC-IF62*** PLC Remote I/O Module Memocon-SC JAMSCIF62*** NIB
NOS FORD DISTRIBUTOR VACUUM ADVANCE TE CORTINA MK2 ESCORT 2 LITRE
RMB 2,289.40Top Rated SellerBuy It NowFrom United States+RMB 1,532.51 shipping
RMB 2,312.66From Japanor Best Offer+RMB 376.32 shippingYASKAWA JAMSC-IF60V PLC COMMUNICATION PROCESSOR MODUL Memocon-SC JAMSCIF60VSee more like this
RMB 2,738.25Top Rated Selleror Best OfferFrom United States+RMB 355.79 shippingFree ReturnsYaskawa JAMSC-IF60V Memocon-sc Communication Processor ModuleSee more like this
RMB 216.36Top Rated SellerBuy It NowFrom Australia8 WatchingNOS FORD DISTRIBUTOR VACUUM ADVANCE TE CORTINA MK2 ESCORT 2 LITRESee more like this
RMB 3,231.04Top Rated SellerBuy It NowFrom ItalyOnly 1 left!1 Watching
RMB 3,393.73From Korea, SouthBuy It NowFree International Shipping
RMB 3,421.10From United Statesor Best OfferYASKAWA #JAMSC-IF70V PROCESSOR See more like this
RMB 3,681.10From Japanor Best Offer+RMB 376.32 shippingYASKAWA JAMSC-IF63V PLC COMMUNICATION MODUL Memocon-SC JAMSCIF63VSee more like this
RMB 3,763.21Top Rated Selleror Best OfferFrom United States+RMB 335.27 shippingYASKAWA ELECTRIC JAMSC-IF612 JAMSCIF612See more like this
RMB 3,845.31From Japanor Best Offer+RMB 239.48 shippingNEW YASKAWA JAMSC-IF70V PLC Remote I/O Reciever Module Memocon-SC JAMSCIF70V NIBSee more like this
RMB 4,098.47From United Statesor Best OfferNEW YASKAWA JAMSC-IF61V,JAMSC-IF61,IF61 COMM,MEMOCON-SC,COMM Alternate,BOXYTSee more like this
