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。
Mettler Toledo KC 150602 Pcb CircuitBoard
Tektronix 670-1735-02 Pcb CircuitBoard
Vacuum Technology V-G-CV-0055 Torrcon Iii PcbCircuit Board Rev 2.5
Honeywell 46190308-001 Relay Pcb CircuitBoard Rev B
Cendac 63060063 Pcb CircuitBoard
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Daniel DE7864 Pcb Circuit Board RevA
General Electric Ge 947D396G2 947D397-0 24vRly Ccwo/p Pcb Circuit Board
His LM0040B PC0010B Pcb CircuitBoard
Honeywell PX3650ITBC1 Pcb Circuit Board RevD
Honeywell PX3650IDAA3 Pcb Circuit Board RevB
Honeywell PX3600AERA1 Pcb Circuit Board RevC
PX3650ISTR5 Pcb Circuit Board RevF
Honeywell PX3650IEDJ3 Pcb Circuit Board RevC
General Electric Ge PX3650ILDA1 Pcb CircuitBoard Rev B
General Electric Ge PX3650ITMA1 Pcb CircuitBoard Rev B
PX3650ISIR5 Pcb Circuit Board RevF
PX3600AOTA1 Pcb Circuit Board RevB
Honeywell PX3650ITIC1 Pcb Circuit Board RevE
General Electric Ge PX1000RSDB5 Pcb CircuitBoard Rev A
PX3650ITTC1 Pcb Circuit Board RevE
General Electric Ge PX1000NSTB5 Pcb CircuitBoard Rev B
General Electric Ge PX1000RPLD5 Pcb CircuitBoard Rev B
General Electric Ge PX1000NSTC5 Pcb CircuitBoard Rev C
PX1000RTSB5 Pcb Circuit Board RevB
Ris AN1117CG-4 Pcb CircuitBoard
Tyco ACET405-1-1 Pcb CircuitBoard
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Extended 1 Year Warranty
308342 Pcb Circuit Board RevG-3c1c
Hardy 0342 Pcb Circuit Board RevB
Westinghouse 8205D32G02 Pcb CircuitBoard
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Fanuc A20B-2000-0411/06A I/o Module Link PcbBoard
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Liquid Solids Control 725408 Pcb CircuitBoard Rev C
Liquid Solids Control C725404 Pcb CircuitBoard
Nwl D25189 P24190 Pcb CircuitBoard
Reliance 0-51378-15 Pcb CircuitBoard
Westinghouse 772B388G29 7381A01G03 PcbCircuit Board Rev 38 Sub Z
501-1B Link Logic Mother Pcb CircuitBoard
Hach 19126 FS19125-3 Pcb CircuitBoard
Eberline 11543-D02F SP28H Pcb CircuitBoard
Leeds Northrup 046402 Pcb Circuit Board RevC1/c1
Abb NTMP01 Infi 90 Termination Unit PcbBoard
Texas Instruments 214103-0001 Data Module PcbCircuit Board
Protectowire RM-2 Solenoid Release PcbCircuit Board
Land Instruments 702-683/A Pcb CircuitBoard
702-616B 702.617-B00678 Pcb CircuitBoard
Acco 581-027-009 Datamaster Pcb CircuitBoard
Acromag 1018-114D Pcb CircuitBoard
24221C Potentiometer Pcb CircuitBoard
Rosemount 3002208 Prc Controller PcbBoard
Leeds Northrup 445857 Pcb Circuit Board RevE
Leeds Northrup 445857 Pcb Circuit Board RevC
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Acromag 1018-111B Pcb CircuitBoard
001-743-5D Power Supply Pcb CircuitBoard
Rosemount Analytical 3D39514 Pcb CircuitBoard Rev 3
Veltron 20821000 Pcb Circuit Board RevB
Ametek MPC-09001-012 91MB04E-1 Panalarm PcbCircuit Board
021-127 140-224-0B Optically Coupled Tca PcbCircuit Board
Winchester 61-600173-02 9022 WD1003V-MM3 F002Pcb Circuit Board
2.295 Pcb Circuit Board Assembly RevA
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445290 Pcb Circuit Board RevC
33110-02 Pcb Circuit BoardAssembly
Digital 70-16646-01F 20ma Adaptor Pcb CircuitBoard
Digital 70-16059-00A Pcb CircuitBoard
586K9852 Phase Lead Pcb CircuitBoard
34421715 339070 4600/A/8 LDV-1 Pcb CircuitBoard
Hewlett Packard Hp 12043-60001 Pcb CircuitBoard
Thermo Electron 102340-00 I Series PcbCircuit Board Rev B
Eberline 11543-D02F SP28G Pcb CircuitBoard
3616921-00 3171281-00 Pcb CircuitBoard
Videojet 351660-M Driver Pcb CircuitBoard
Foxboro 3C8-C3D Controller Pcb CircuitBoard
Gai-tronics 17008-001 69651-50 Pcb CircuitBoard1 Rev B
Nachi UM116C Pcb CircuitBoard
1 Nachi UM116C Pcb CircuitBoard
Diamond Power 319104-1031 Initial Turn-on PcbCircuit Board
Ncs 1B358E006-6 Alarm Relay Pcb CircuitBoard
Measurex 05326700 Honeywell Pcb Circuit BoardRev A
Allen Bradley 1772-LI Processor Control PcbCircuit Board
Dell 316736100004-R01 Pcb CircuitBoard
Gutor 0P0010 21411-5 Pcb CircuitBoard
Sms FAB 0006386 Pcb Circuit Board RevA
Apc 640-4122F Pcb Circuit Board Rev07
Agc D-6448-100A Pcb CircuitBoard
Racon 10021-103-04 Pcb Circuit Board RevE
NotifieP5-MPCA Pcb Circuit Board RevE
Bonitron 3438C2D3 Pcb CircuitBoard
Hardy 0534-0235 Pcb Circuit Board RevB
Hardy 2295A03-881 Pcb CircuitBoard
Acromag 421-80604-3 HH-040-N Pcb CircuitBoard 117v-ac
Texas Instruments 214103-1G Data Module PcbCircuit Board
Eberline 11325-C01A Pcb CircuitBoard
03003880 Amplifier Pcb Circuit Board RevA
N024222C TC8406 Pcb CircuitBoard
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Eberline 11325-C01B Pcb CircuitBoard
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4000-1446 Pcb Circuit Boardb Rev005
Rona96-10210B-2 Pcb CircuitBoard
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Liquid Solids Control 1022403 PC3 Pcb CircuitBoard Rev B
Liquid Solids Control 1022401 PC1 Pcb CircuitBoard Rev B
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Liquid Solids Control 1022401 Pcb CircuitBoard Rev B
Eaton 15-1095-1 Pcb Circuit Board RevD
Yaskawa JANCU-MTU01 Pcb Circuit Board RevE0
Yaskawa JANCU-MTU01 Pcb Circuit Board RevE00
Charmilles 852432 If Mac V1 Pcb CircuitBoard
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Danaher LAR131364-H Pcb CircuitBoard
Eberline 11325-C01E Pcb CircuitBoard
70B112 70C44 Pcb CircuitBoard
Forney REL-35B1 39595 Pcb CircuitBoard
Herfurth CNT2 Pcb CircuitBoard
Red Lion ATB30000 Accessory BoardPcb
Westronics MC-100040-01A Board Range Card PcbCircuit Board 0-1200f
Advantech PCA-6106P3-0C1 1902610655 Rev C1Pcb Circuit Board
Ashcroft 208-050-03 Pressure Transducer PcbCircuit Board
Quatech DS-225 Io Card Pcb CircuitBoard
Dell CN-0GM819-13740-8CS-00CZ Pcb CircuitBoard
Siemens R15-02-301 Pcb CircuitBoard
Honeywell L123118 Pcb CircuitBoard
Senstar C6BA1103-002 Pcb CircuitBoard
Ttm Technologies PN-472032 Pcb CircuitBoard
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Toyoda PDN4 TP-2295-0 Pcb CircuitBoard
Eaton EA144205-1 Pcb CircuitBoard
Thermo Environmental 42P309 Pcb CircuitBoard
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Western Digital 60-600003-02 WD1002A-WX1 PcbCircuit Board
Graco 249179 Flow Control BoardPcb
Capital Controls A-1550 Pcb Circuit Board Rev1
Capital Controls A-1560 Pcb Circuit Board Rev4
Capital Controls A-1550 Pcb Circuit Board Rev4
Rfl HC-95053 Pcb CircuitBoard
N/a TA-100KR-X Pcb CircuitBoard
Mean Well 9000430 PT-65-R15VAI Power SupplyPcb Rev B
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Icore Acurex 070-18351-A2 Pcb CircuitBoard
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Forry 150183 Processor Power Supply PcbCircuit Board Rev C
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Mitsubishi BN624A550G52A FW131A Pcb CircuitBoard
Ircon 50038-9A Pcb CircuitBoard
Kent Taylor P105M-0153 Pcb CircuitBoard
Lsi 98000066 PC2653 Pcb Circuit Board RevB
Bonitron 3460V2A46 Pcb CircuitBoard
Bonitron 3460X4A1 Pcb CircuitBoard
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3618171-01(A) Pcb CircuitBoard
1C043223 Pcb Circuit BoardAssembly
Transmation A28432 Pcb CircuitBoard
Arvin Diamond 10021-103-04 Pcb Circuit BoardRev E
9224-01 Pcb Circuit Board RevC
Nwl D25108-03 Feedback BoardPcb
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Ronan SS2190-A Pcb CircuitBoard
Nwl D25640-01 Gate Driver AssemblyPcb
Yaskawa JUSP-WSCD-30AA Pcb Circuit Board RevB11
Lithonia EMEPD00023 Pcb Circuit Board RevG
