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。
CUTLER HAMMER 87-02010-00 AB REM I/OMODULE
ALLEN BRADLEY 1769-OB16P COMPACTLOGIX OUTPUTMODULE
LOT OF (5) HP M1020A SpO2/PLETH TMODULES
CUTLER HAMMER AB ACCELERATION 87-02008-01MODULE
ALLEN BRADLEY 150-C480NCR SER B SMC-3 SMARTMOTOR CONTROLLER
SUMITOMO SHI DEMAG CONTROLUNIT
ALLEN BRADLEY 150-B135NBD-8B SMC DIALOG PLUSMOTOR CONTROLLER
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ALLEN BRADLEY 1391B-ESAA45-AQB SER D SERVOCONTROLLER
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SEL SEL-651R 0651R26VXAA8AD11X3XXXX RECLOSERCONTROL
SEL SEL-651R 0651R21VXDG8AF11X3XXXX RECLOSERCONTROL
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1 YASKAWA CACR-SR20SB1BFY118 CACR-SRSERVOPACK SERVO DRIVE CONTROLLER
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MITSUBISHI DIAROL DL-SCZ SPINDLE CONTROLLERDL-SCZ 15 K BD
SEL SEL-651R 0651R21CXAA8AE1113H503 RECLOSERCONTROL
SEL SEL-651R 0651R24VXDA8AD11X2XXXX RECLOSERCONTROL
SEL SEL-651R 0651R2APXGA8AE1123L508 RECLOSERCONTROL
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SEL SEL-651R 0651R26VXDAXAC11X3XXXX RECLOSERCONTROL
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SEL SEL-651R 0651R24VXDAXAD11X2XXXX RECLOSERCONTROL
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GE FANUC 90-70 9-SLOT CONTROLLER IC697CMM742IC697CMM742-MM TYPE 2 ETHERNET IN
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TB WOOD'S ULTRACON II D2C0020 MOTOR SPEEDCONTROL
ALLEN BRADLEY 1394C-SJT10-D /D 10KW KINETIX1394 DIGITAL SERVO CONTROLLER
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MACROAIR 132-4003-100YR FAN CONTROL PANELCIMR-J7AM40P7
NIRECO TC800 YE4700.0-69 TENSIONCONTROLLER
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NIRECO TC800 YE4700.0-69 TENSION CONTROLLER#2
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1 SIEMENS 6SL3040-1MA00-0AA0 CONTROLMODULE
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OMRON C60K-CDT1-D PROGRAMMABLECONTROLLER
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MCNEILUS 0946-035 CONTROLLER 13 FEETCABLE
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SIEMENS 6SL3040-0MA00-0AA1 SINAMICS CONTROLUNIT
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GE FANUC IC3600EPSU1C SPEEDTRONIC DC POWERSUPPLY BOARD CONTROL
TELECRANE F34-8D-RX REMOTECONTROL
ADEPT P/N 20000-310 SMART CONTROLLERCX
GEORGE FISCHER SIGNET SCIENTIFIC 3-9040.111ORP CONTROLLER 9040 INTELEK-PRO
WOODWARD 8440-1510 CIRCUIT BREAKERCONTROL
MITSUBISHI FX3G-40MR/DS PROGRAMMABLECONTROLLER
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ROBOTRON 400 SERIES WELD CONTROL 503-1-0324,442-01, S-400
ALLEN BRADLEY 1769-L30ER COMPACTLOGIX 1MBCONTROLLER
ALLEN BRADLEY 1769-L30ER COMPACTLOGIX 1MBCONTROLLER
TOTAL CONTROL QUICKPANEL SG-1125QPI-GEG-201-H QPI-3D200-E2P-B
