CACR-SR30BE12G-E 一手货源 国外直接进货

LV432893P+29450
HA-600-1L-SP
330850-90-05
1756-OF8
FBM01
FBM01
AI815/4~20MA
140NOE77101
140CRP31200
P0916CA
140ACO13000
6AU1240-1AA00-0AA0

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描述

随着半导体技术,尤其是微处理器和微型计算机技术的发展,到70年代中期以后,特别是进入80年代以来,PLC已广泛地使用16位甚至32位微处理器作为中央处理器,输入输出模块和外围电路也都采用了中、大规模甚至超大规模的集成电路,使PLC在概念、设计、性能价格比以及应用方面都有了新的突破。这时的PLC已不仅仅是逻辑判断功能,还同时具有数据处理、PID调节和数据通信功能,称之为可编程序控制器(ProgrammableController)更为合适,简称为PC,但为了与个人计算机(Persona1Computer)的简称PC相区别,一般仍将它简称为PLC(ProgrammableLogicController)。

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