PCB JANCD-YCP01B-E 模块

6DD1682-0CH2
VMIVME7452-535
6FC5372-0AA00-0AA2
ASMC2177-IX1006
467NHP811DP
SC904-001-01
PP845-3BSE042235R1
469-P1-HI-A20-E-H
IS220PPROH1A
3HAC3180-1
IC697CMM711
VT11118-10
RMIO-11C

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描述

PLC主要由CPU模块、输入模块、输出模块和编程器组成(见图1),有的PLC还可以配备特殊功能模块,用来完成某些特殊的任务。

CPU模块主要由微处理器(CPU芯片)和存储器组成。在PLC控制系统中厂CPU模块相当于人的大脑,它不断地采集输入信号,执行用户程序,刷新系统的输出;存储器用来储存程序和数据。

输入(1nput)模块和输出(Output)模块简称为I/O模块,它们是系统的眼、耳、手、脚,是联系外部现场设备和CPU模块的桥梁。

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