福建中立恒自动化设备有限公司

一、摘要 PLC是一种专门在工业环境下应用而设计的数字运算操作的电子装置。

它采用可以编制程序的存储器，用来在其内部存储执行逻辑运算、顺序运算、计时、计数和算术运算等操作的指令，并能通过数字式或模拟式的输入和输出，控制各种类型的机械或生产过程。PLC及其有关的外围设备都应按照易于与工业控制系统形成一个整体，易于扩展其功能的原则而设计。在工业生产的各个领域，机械加工企业为了提高生产效率，采用机械化流水作业的方式，对不同类型的零件分别组成的自动生产线。随着产品机型的更新换代，生产线承担的加工对象也随之改变，这就需要改变控制程序，使生产线的机械设备按新的工艺过程运行，而继电接触器控制器系统是采用固定接线，很难适应这个要求。大型自动生产线的控制系统使用的继电器数量很多，随着PLC的应用日益普及,其使用方法简单,便于掌握,且可靠性,抗干扰性很强,自身具有完善的功能.模块化的结构,使其在工业生产线上的应用越来越广泛。

　　发展趋势：1.向高速度、大容量方向发展

　　为了提高PLC的处理能力，要求PLC具有的响应速度和更大的存储容量。目前，有的PLC的扫描速度可达0.1ms/k步左右。PLC的扫描速度已成为很重要的一个性能指标。

　　在存储容量方面，有的PLC可达几十兆字节。为了扩大存储容量，有的公司已使用了磁泡存储器或硬盘。

　　2.向超大型、超小型两个方向发展

　　当前中小型PLC比较多，为了适应市场的多种需要，今后PLC要向多品种方向发展，特别是向超大型和超小型两个方向发展。现已有I/O点数达14336点的超大型PLC，其使用32位微处理器，多CPU并行工作和大容量存储器，功能强。

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CM400HA-24 - Module / Electronic Component / Semiconductor

GB75YF120N - Electronic Component - Semiconductor Module

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BSM200GB125D - Electronic Component - Semiconductor Module

SKM600GA125D Semikron Module - Semiconductor - Electronic Component

SKIIP39AC126V2 Semikron Module - Semiconductor - Electronic Component

7MBI150SA-060 FUJI Module - Semiconductor - Electronic Component

SEMIX302GB066HDS - Semiconductor - Electronic Component

7MBP150KB060-03- Electronic Component - Semiconductor Module

SKD146-16- Electronic Component - Semiconductor Module

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Ve 5x LÜTZE Relé Semiconductor LCIS-SRKF-DC-3L-200330-PI Relé Módulo 764020.0330

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Silicon Wafer Semiconductor Decorative Clock IC CPU IT Technology Creativity

142-0602// AMAT APPLIED 0150-76500 SEMICONDUCTOR SUPPOR

6 PICESs  COOPER BUSSMANN Semiconductor Fuse 200FM 200A

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Skyworks SMP1322-016LF PIN Diode Zener Semiconductor Transducer Controller

DCA75 DCA-75 PRO SEMICONDUCTOR ANALYZER CURVE TRACER PEAK ATLAS

SEMICONDUCTOR LINE PRESSURE GAS VALVE REGULATOR FILTER ASSEMBLY AS IS BIN#TA-2-i

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7x 20CT 20A HRC FF BUSSMANN 660Vac 73x9mm aR Fuse Semiconductor

National Semiconductor 0933686 0933679, Novell Infomover Pcmcia  Adapter

Genuine Honda OE Mod Semiconductor 38850-T20-C11

FAST   -  GENUINE FACTORY DIRECT PART

HUGE PLASTIC VACUUM CHUCK STAGE SEMICONDUCTOR HANDLING AS PICTURED 83-B-36

  NATIONAL AMPAL16R6PC SEMICONDUCTOR 8435GMM

SKIIP39ANB16V1- Semiconductor - Electronic Component

6MBP100RA-060 FUJI Module - Semiconductor - Electronic Component

VSKT250-16 - Electronic Component - Semiconductor Module

CM400HA-24E - IGBT - Semiconductor - Electronic Component

SKM200GB124D Semikron Module - Semiconductor - Electronic Component

Samsg S3C3410X01QA80 Semiconductor

National Semiconductor 09336860933679, Novell Infomover Pcmcia  Adattatore

Mersen Ferraz FD20GB100V20T Prosistor Semiconductor Fuse, 1500VAC/1000VDC, 20Amp

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NATIONAL SEMICONDUCTOR LM5118 EVALUATION BOARD PN: 551600014-001, NOS!

National Semiconductor 09336860933679 , Novell Infomover Pcmcia  Adaptador

National Semiconductor 09336860933679, Novell Infomover Pcmcia  Adaptateur

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Siemens 3RQ3052-2SM40 Relé Semiconductor 24V Dc 60V 2A 1NO Ve : 4STK

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CAS-SEMICONDUCTOR CAS-100ND-A2-4VM-S-1,/UPS

NATIONAL SEMICONDUCTOR 0933686  0933679, NOVELL Infomover PCMCIA  Adapter

7MBR50SB-140 FUJI Module - Semiconductor - Electronic Component

QM200E2Y-HB - Module / Electronic Component / Semiconductor

7MBI100SA-060B-50 - Module / Electronic Component / Semiconductor

FS100R12KT3- Semiconductor - Electronic Component

SKM300GAL12E4 Semikron Module - Semiconductor - Electronic Component

2MBI200U4D120 Module / Electronic Component / Semiconductor

BSM50GD120DN2E3226 - IGBT - Semiconductor Module

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SKKD160M12-2 - Module / Electronic Component / Semiconductor

BSM300GB1200DLCE3256- Semiconductor - Electronic Component

FP75R12KE3 - Semiconductor - Electronic Component

SA529185-04 - Electronic Component - Semiconductor Module

FF200R17KE3 - IGBT - Semiconductor - Electronic Component

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CM600HA-12E - Semiconductor - Electronic Component

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SKKT330-18E - Electronic Component - Semiconductor Module

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FF400R12KE3 - IGBT - Semiconductor - Electronic Component

SKM300GAR12E4 Semikron Module - Semiconductor - Electronic Component

SKM400GAR12E4 Semikron Module - Semiconductor - Electronic Component

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6MBP150RTC-060 FUJI Module - Semiconductor - Electronic Component

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SKM300GB12E4 Semikron Module - Semiconductor - Electronic Component

FF450R12KT4 Electronic Component - Semiconductor Module

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CM600HA-28K- Semiconductor - Electronic Component

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1DI150E-100 FUJI Module - Semiconductor - Electronic Component

CLB40AB120 - Semiconductor - Electronic Component

MODULE PM100CLA060

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MDD312-16N1 - Module / Electronic Component / Semiconductor

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