IS230PCAAH1A 欢迎询价 价格美丽

351A3445P024
351A3488P003
351A3488P003
351A3488P005
351A3488P006
351A3488P022
351A3488P024
351A3488P024
351A3488P024
351A3488P024
351A3488P026
351A3488P031
351A3488P031

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描述

CPU是PLC的核心,起神经中枢的作用,每套PLC至少有一个CPU,它按PLC的系统程序赋予的功能接收并存贮用户程序和数据,用扫描的方式采集由现场输入装置送来的状态或数据,并存入规定的寄存器中,同时,诊断电源和PLC内部电路的工作状态和编程过程中的语法错误等。进入运行后,从用户程序存贮器中逐条读取指令,经分析后再按指令规定的任务产生相应的控制信号,去指挥有关的控制电路。

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