目前，在国内外PLC已广泛应用冶金、石油、化工、建材、机械制造、电力、汽车、轻工、环保及文化娱乐等各行各业，随着PLC性能价格比的不断提高，其应用领域不断扩大。从应用类型看，PLC的应用大致可归纳为以下几个方面利用PLC最基本的逻辑运算、定时、计数等功能实现逻辑控制，可以取代传统的继电器控制，用于单机控制、多机群控制、生产自动线控制等，例如：机床、注塑机、印刷机械、装配生产线、电镀流水线及电梯的控制等。这是PLC最基本的应用，也是PLC最广泛的应用领域。
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unbenutzt in OVP Siemens Hilfsschalterblock 3RH1911-1GA13
ALLEN BRADLEY 1336E-BRF100-AN-EN-HAP-L9E DRIVE SERIES D
JAI CV-A1 Progressive Scan Camera Tamron 1:1.4
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SMC NSR4000 Manual Pneumatic Clean Air Regulator
Lam 4420 Lower End Reaction Chamber PlateD working