1756-OB32 /A  1756-OB32 /A  1756-OB32 /A  1756-OB32 /A  1756-OB32 /A  1756-OB32 /A 1756-OB32 /A

基本组成：
1、指令寄存器用来存放正在执行的指令。指令分成两部分：操作码和地址码。操作码用来指示指令的操作性质，如加法、减法等；地址码给出本条指令的操作数地址或形成操作数地址的有关信息（这时通过地址形成电路来形成操作数地址）。有一种指令称为转移指令，它用来改变指令的正常执行顺序，这种指令的地址码部分给出的是要转去执行的指令的地址。
2、操作码译码器：用来对指令的操作码进行译码，产生相应的控制电平，完成分析指令的功能。
3、时序电路：用来产生时间标志信号。在微型计算机中，时间标志信号一般为三级：指令周期、总线周期和时钟周期。微操作命令产生电路产生完成指令规定操作的各种微操作命令。这些命令产生的主要依据是时间标志和指令的操作性质。该电路实际是各微操作控制信号表达式（如上面的A→L表达式）的电路实现，它是组合逻辑控制器中最为复杂的部分。
4、指令计数器：用来形成下一条要执行的指令的地址。通常，指令是顺序执行的，而指令在存储器中是顺序存放的。所以，一般情况下下一条要执行的指令的地址可通过将现行地址加1形成，微操作命令“1”就用于这个目的。如果执行的是转移指令，则下一条要执行的指令的地址是要转移到的地址。该地址就在本转移指令的地址码字段，将其直接送往指令计数器。
微程序控制器的提出是因为组合逻辑设计存在不便于设计、不灵活、不易修改和扩充等缺点。

福建宇创自动化设备有限公司座落于美丽的海滨城市--厦门。
是一家多年专业从事大型系统备件（集散式控制系统、可编程控制器、冗余容错控制系统、机器人控制系统、大型伺服控制系统）等进口自动化系统备件、模块销售及系统集成的高新技术企业。
对各自动化品牌产品有着强大的优势，公司配备专业的技术人员，旨为客户提供更优质的服务。 
福建宇创自动化设备有限公司本着专业、诚信、合作、共赢、的经营理念，竭诚为客户提供更好的服务，更好的价格；欢迎来电垂询。 Rockwel...

主营: AB，施耐德，GE ，TRICONEX，西门子，西屋，福克斯波罗 ，ABB

公司聯络人：徐工(销售工程师)
bbb：0592-7796662
Fax：0592-6535181
Phone：18050109369
商务QQ：3250341298

本公司有大量库存现货，全新原装，欢迎订购，当天可发货！！！！！！


欢迎来电咨询，我们将会给您最优质的服务！
产品详细信息，欢迎来电查询！
如果您发现其他供货商为相同产品提供更为低廉的价格，我们也愿意参照其价格向您提供进一步的折扣。只要您诚心购买，如果还有其他任何问题，请随时与我们联系。
我们的使命是帮助你!
降低维护成本!
延长寿命的新的控制系统!
下面是我公司的优势产品(日常用的最多的,还有不常用的未列出，但都有做的)欢迎您
的咨询！
本公司主要优势产品：
【美国，英维思 Invensys FOXBORO I\A系统, Triconex ESD系统】
【美国AB ..1756系列,1785系列,1746系列,1747系列,1771系列】
【瑞士ABB.. 机器人 DSQC系列,ABB Advant OCS,ABB Procontic PLC CPU】
【法国施耐德140莫迪康昆腾系列处理器,内存卡,电源模块等。】
【德国西门子Siemens MOORE,S5,S7,6DD等】
【美国通用电气GE..IC693/IC697系列】
【美国Westinghouse（西屋）：OVATION系统、WDPF系统、WEStation系统备件】
【德国Bosch Rexroth（博世力士乐）：Indramat，I/O模块,PLC控制器,驱动模
块等。】
【美国Motorola（摩托罗拉）：MVME 162、MVME 167、MVME1772、MVME177等系列】


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