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
Allen Bradley 1746-OW16 SLC 500 Output Module PLC SERIES C
Allen Bradley 1746-OW16 SLC 500 Output Module PLC SERIES D
ALLEN BRADLEY 1756-CNB/E
ALLEN BRADLEY 1756-DHRIO/C
ALLEN BRADLEY 1756-DHRIO/D
ALLEN BRADLEY 1756-ENBT SER A ETHERNET/IP 10/100 Mb/s COMMUNICATIONS BRIDGE
ALLEN BRADLEY 1756-ENET/A
ALLEN BRADLEY 1756-L63/B
ALLEN BRADLEY 1756-M08SE
ALLEN BRADLEY 1756-PSCA2/A MOUNTING ADAPTER CONTROLLGIX FOR REDUNDANT 96447292
ALLEN BRADLEY 1761-HHP-B30
ALLEN BRADLEY 1761-L32BWA
ALLEN BRADLEY 1762-IF4 MICRO LOGIX PLC INPUT MODULE 1762IF4 US STOCK
Allen Bradley 1762-IF4 Micro Logix PLC INPUT MODULE 1762IF4(FACTORY SEAL)
Allen Bradley 1762-OB16 MicroLogix 16pt Output Module 24VDC Ser A Rev C
ALLEN BRADLEY 1769-CRL1
ALLEN BRADLEY 1769-CRL3
ALLEN BRADLEY 1769-ECR SER A REV 2 COMPACT™ I/O 1769-ECR
Allen Bradley 1769-IF4I SerA Rev2.1
ALLEN BRADLEY 1769-L23E-QB1B SER A LOGIX 5323E PACKAGED CONTROLLER UNIT
Allen Bradley 1769-OF4CI SerA Rev2.1
ALLEN BRADLEY 1769-PB2 SER A COMPACT™ I/O POWER SUPPLY
ALLEN BRADLEY 1783-ETAP2F
Allen Bradley 1783-US05T SerA
ALLEN BRADLEY 1783-US08T SER A STRATIX™ 2000 UNMANAGED ETHERNET SWITCH
ALLEN BRADLEY 1790D-T0B16 PLC
ALLEN BRADLEY 1790-T0V16X
ALLEN BRADLEY 1790-T8BV8BX
ALLEN BRADLEY 1790-T8BV8BX SER-A
ALLEN BRADLEY 1790-TOB16X
ALLEN BRADLEY 1791-16BC B
ALLEN BRADLEY 1791-24B8B
ALLEN BRADLEY 1794-ACN15 (2PCS 1LOT)
ALLEN BRADLEY 1794-DV16P
ALLEN BRADLEY 1794-I832
ALLEN BRADLEY 191748-C02 HEAT SINK FOR DRIVE 3044
ALLEN BRADLEY 194E-A80-1753 SERIES 194E INDUCTIVE LOAD SWITCH 80AMP SER B
ALLEN BRADLEY 2098-DSD-005
ALLEN BRADLEY 20B-VECTB-C0 VECTOR CONTROL WITH 24V I/O
ALLEN BRADLEY 20-HIM-A3 SERIES B FULL NUMERIC LCD HIM KEYPAD
Allen Bradley 22A-D6P0N104 Ser.A
Allen Bradley 22F-B4P2N103 Ser.A
ALLEN BRADLEY 22F-D1P5N113
ALLEN BRADLEY 25B-D2P3N104 POWERFLEX 525 ADJUSTABLE FREQUENCY AC DRIVE 0.75kW
ALLEN BRADLEY 25B-D4P0N114 POWERFLEX AC DRIVE 1.5kW/2.0HP
ALLEN BRADLEY 42SRP-6032
ALLEN BRADLEY 440R-ENETR GUARDMASTER ETHERNET/IP NETWORK MODULE 440RENETR
ALLEN BRADLEY 509-AOD NEMA 0 115V COIL STARTERS
Allen Bradley 509-TOD Size 00 Motor Starter, 120 Volt Coil
Allen bradley 700-k22z-za 220v dc control relay series B
ALLEN BRADLEY 825-MCM20 CONVERTER W/ CABLE
Allen bradley 855h signal device 855h-bd30ad
ALLEN BRADLEY 872C-N12NN18-A2
Allen Bradley cat no.22b-d012h04 ac vfd variable frequency drive 5.5kw/7.5hp 3 p
Allen Bradley EtherNet/IP 1761-NET-ENI Ser-D Frn-3.21 Ethernet Interface Module
ALLEN BRADLEY MICROLOGIX 1200 1762-L24BWA PROGRAMMABLE CONTROLLER
ALLEN BRADLEY MICROLOGIX 1762-OW8 REV. A RELAY OUTPUT MODULE
ALLEN BRADLEY MVI56
ALLEN BRADLEY NX-CPU700
Allen Bradley OEMax DS60-ER8
Allen Bradley OEMax V806CD+
ALLEN BRADLEY SCL500 1746-OX8
ALLEN BRADLEY SLC500 1746-IB16
ALLEN BRADLEY SLC500 1746-IB16 (2pcs 1lot)
ALLEN BRADLEY SLC500 1746-NI4
Allen Bradley SLC500 1746-p2 10-Slot Modular Rack 1746-p2
ALLEN BRADLEY SLC500 1747-ASR
ALLEN BRADLEY SLC500 1747-BSN
ALLEN BRADLEY STRATIX 2000 1783-US8T
ALLEN BRADLEY Stratix 5700 1783-BMS06TGA ETHERNET MANAGED SWITCH
Allen-Bradley 100-C43E*00 100F
Allen-Bradley 150B135NBD SMC Dialog Plus™ Motor Starter Controller 100-240V
Allen-Bradley 1746-IA16 SLC 500 16-Point AC Input Module Series A
ALLEN-BRADLEY 1756-A13 SER B CONTROLLOGIX 13 SLOTS CHASSIS RACK
ALLEN-BRADLEY 1756-A13 SER C CONTROLLOGIX 13 SLOTS CHASSIS RACK
ALLEN-BRADLEY 1756-DNB DEVICENET CONTROLLOGIX BRIDGE SCANNER MODULE PN-36089
ALLEN-BRADLEY 1761-L32BWA CONTROLLER UNIT MICROLOGIX 1000
Allen-bradley 1762-iq16 micrologix-1200 input module Rev.A
Allen-bradley 1762-l40bwar-c micrologix-1200 digital i/o module rev.g
Allen-Bradley 1783-ETAP /A FW 2.002 3 Port Ethernet module
Allen-Bradley 1784-PCIDS B
Allen-Bradley 1784-PCIDS B [] No connector
ALLEN-BRADLEY 1794-OB8 DIGITAL OUTPUT MODULE 1794-OB8 A
Allen-Bradley 194R-J60-1753 194R-60-MTL3 SerA
Allen-Bradley 2098-DSD-075
Allen-Bradley 20AB022A0AYNANC0
Allen-Bradley 20AB2P2A0AYNANC0
Allen-Bradley 230-0000-02 Electronic Processors STR-LINK III
Allen-Bradley 230-0000-02 Elettronico Processori Str-Link III
ALLEN-BRADLEY 2711C-T4T
ALLEN-BRADLEY 2801-YF
Allen-Bradley 6186M-19PNSS 19 " Pannello Operatore Acciaio Inox
Allen-Bradley 6186M-19PNSS 19" Operator Panel Stainless Steel
Allen-Bradley 872C-A10C30-A2 Inductive Proximity Sensor 0794
Allen-Bradley 872C-A10C30-A2 Induttivo Sensore di Prossimità 0794
ALLEN-BRADLEY MPL-A320H-HJ22AA AC SERVO DRIVE 7032-01-1202 3500 RMP
ALLEN-BRADLEY OEMAX NX700X64D
ALLEN-BRADLEY POWERFLEX 700 AC DRIVE 30HP SER A “SIGHTLY CRACKED”
ALLEN-BRADLEY POWERFLEX 700 AC DRIVE CAT NO. 20B C 043 A 0 AYNANC0 30HP
Allen-Bradley Stratix 8000 Ethernet Interruttore & Compatto Flash Card
Allen-Bradley Stratix 8000 Ethernet Switch & Compact Flash Card 1783-MS06T
ALLEN-BRADLEY TLY-A230T-HJ62AA SERVO MOTOR KINETIX
ALLFAVOR PCA03 ISS3 XL-EN 12 Zona Display
ALLFAVOR PCA03 ISS3 XL-EN 12 Zone Display
ALLIED AT-MX70
ALLIED F-046B IRF
ALLIED F046B IRF W90 CAMERA
ALLIED F131B IRF
ALLIED F131BIR F
ALLIED F421B ASG
Almost gone
ALPHA AR050-PR1-170-10N-H
ALPHA LPK070-M03-15-011
ALSTOM A SERIES DOCKING STATION
Alstom MFVUM 22D1AA0014A Digital Frequency Relays Freq Rating 10.001 - 500 Hz
ALSTOM MFVUM 22D1AA0014A Digitale Frequenza Relé Freq Rating 10.001 - 500 Hz
Alstom micom c264 ds agile bay controller C264LB1M691000370100E001111N10
Alstom MiCom P241311A2M0570J Motor Protection Relay 0395
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ALSTOM RA332 REASON REMOTE ACQUISITION UNIT RA332311D33AC
Alstom RPV3113E00FA12C Reason RPV311
Alstom Scatto Automatico E Controllo Relè MVTT14R1NA0751E
Alstom Single Fase Sovracorrente AC Relè MVTU13T1BA0751H Da Areva
Alstom Single Phase Overcurrent AC Relay KCGG14201T50CEC Areva
Alstom Single Phase Overcurrent AC Relay KCGG14201T50CEC by Areva
Alstom Single Phase Overcurrent AC Relay MVAA23T1BA0810A by Areva
Alstom Single Phase Overcurrent AC Relay MVAJ23R1AB0757 by Areva
Alstom Single Phase Overcurrent AC Relay MVAW11R1AB9000A
Alstom Single Phase Overcurrent AC Relay MVAZ03T1AA0751A by Areva
Alstom Single Phase Overcurrent AC Relay MVTU13T1BA0751H by Areva
Alstom Singolo Fase Sovracorrente AC Relè KCGG14201T50CEC Areva
Alstom Singolo Fase Sovracorrente AC Relè KCGG14201T50CEC Da Areva