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。

以下链接皆有货

EATON CUTLER HAMMER FD2125 FD25K 125A 2P Circuit Breaker

Eaton Cutler Hammer GD3070 3 Pole 70 Amp Circuit Breaker GD 22K

Eaton Cutler Hammer Genuine Set Of Contacts  6-189-3

Eaton Cutler Hammer GFTCB220 Circuit Breaker 20 Amp 2 Pole GFCI Ground fault

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Eaton Cutler Hammer Illuminated PUSHBUTTON 10250T478

Eaton Cutler Hammer LD3600WK 6633C85G06 600A 600VAC 3 Pole Circuit Breaker  

Eaton Cutler Hammer Operator Handle Mechanism With Internals  Take Out

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EATON DG5S4022ATMFPA5WLH520  CONTROL VALVE  

EATON DG5S4022ATMFPA5WLH520 CONTROL VALVE  

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EATON ECL03C2ABA CN35 Non-Combination Electrically Held Lighting Contactor  

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 EATON HD DISCONNECT DH325FGK FUSIBLE SWITCH 400A 240V SER A 3P SINGLE THROW

 Eaton HFD3020 20A 600VAC 250VDC 3-pole Circuit Breaker w/warranty E5

EATON HFD3060 HFD 65K 60AMP 600VAC 250VDC 3P INDUSTRIAL BREAKER W/AUX

EATON HFD3070  70 AMP 600V CIRCUIT BREAKER

Eaton HJD3250F 3 Pole 250 Amp 600 VAC Industrial Circuit Breaker Frame HJD 65k

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 Eaton HLA3400T LA TRIP UNIT - 3 POLE 400A, Therm/Mag 2000-4000 Trip A

Eaton H-Max HMX03444NA INTELLIPASS DRIVE VFD 480V 25HP 18.5kW

Eaton HMCP HMCPE HMCPE003A0C 3 Pole 3 Amp 600v Circuit Breaker  TAKE OUT

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EATON HMCP030H1CA02 30A * *

 EATON HMCP050M2C TYPE HMCP 50 AMP 600V WITH SHUNT TRIP

EATON HMCP100R3C 100A 600VAC 250VDC 3 POLE CIRCUIT BREAKER NTO

Eaton HMCP150T4C Molded Case Circuit Breaker 150A, 3-Phases, 600V

EATON HMCP150U4C 150A 600V 3P CIRCUIT BREAKER

Eaton HMCPE007C0C Motor Circuit Protector 3 Pole 7 amp 600v Line/Load Lug

EATON HMX04044NA 480 VAC 40A 30 HP Variable Frequency Drive

EATON IDT PANELMATE EPROM READER 401041000

EATON IMPLANTER 4600 DUAL USTEP C DRIVE MOTOR DRIVE 0906-0108-0001, 113682

EATON IMPLANTER 4600 DUAL USTEP C DRIVE MOTOR DRIVE 0906-0108-0001, 113683

EATON JHMVD12R Handle Mechanism

EATON KHMVD12B K-Frame Vari-Depth Handle Mech 12" Shaft, Black Handle

EATON KLOCKNER MOELLER XTPR063DC1 MANUAL STARTER PROTECTOR 55-63 Amp

Eaton LABXXXXXXXXXXXXL22C Pow-R-Flex Busplug 60A 240V Circuit Breaker 1-YEAR WAR

EATON LD3600F 600A 600V 3P LD 35k CIRCUIT BREAKER w/ LT3600T Trip  Tested

Eaton LD3600T106W 3 Pole 600A 600VAC Industrial Circuit Breaker w/ Optim 1050

EATON LEONARD 8048801 I/O CIRCUIT BOARD    

EATON LEONARD 8048805 I/O CIRCUIT BOARD