福建中立恒自动化设备有限公司
目前,世界上有200多个厂家生产可编程序控制器产品,厂家有德国的西门子,美国的Rockwell(AB)、通用(GE),日本的三菱、欧姆龙,法国的施耐德等。
可编程序控制器总的发展趋势是向高集成度、小体积、大容量、高速度、易使用、高性能方向发展。具体表现在以下几个方面:
(1)向小型化、专用化、低成本方向发展
20世纪80年代初,小型PLC在价格上还高于小系统用的继电器控制装置。随着微电子技术的发展,新型器件大幅度的提高功能和降低价格,使PLC结构更为紧凑,功能不断增加,将原来大、中型PLC才有的功能移植到小型PLC上,如模拟量处理、数据通讯和复杂的功能指令等,但价格不断下降,真正成为继电器控制系统的替代产品。
(2)向大容量,高速度方向发展
大型PLC采用多微处理器系统,有的采用32位微处理器,可同时进行多任务操作,处理速度提高,特别是增强了过程控制和数据处理的功能。另外,存储容量大大增加。
(3)与计算机联系密切
从功能上看,PLC不仅能完成逻辑运算,且计算机的复杂运算功能在PLC中也进一步得到利用,从结构上看,计算机的硬件和技术越来越多地应用到PLC;从语言上看,PLC己不再是单纯用梯形图语言,而且可用多种语言编程,如类似计算机汇编语言的语句表,甚至可直接由计算机语言编程;在通讯方面,PLC与计算机可直接相连并进行信息传递。
(4)发展多样化
可编程序控制器发展的多样化体现在3个方面:产品类型、编程语言和应用领域。
(5)模块化
PLC的扩展模块发展迅速。功能明确化、专用化的复杂功能由专门模块来完成。主机仅仅通过通讯设备向模块发布命令和测试状态,这使得PLC的系统功能进一步增强,控制系统设计进一步简化。
(6)网络与通讯能力增强
计算机与PLC之间以及各个PLC之间的联网和通讯的能力不断增强,使用工业网络可以有效地节省资源、降低成本、提高系统可靠性和灵活性,致使网络的应用有普遍化的趋势。
(7)多样化与标准化
生产PLC产品的各厂家都在大力度地开发自己的新产品,以求占据市场的更大份额。因此产品向多样化方向发展,出现了欧、美、日多种流派。与此同时,为了推动技术标准化的进程。一些国际性组织,如国际电工委员会(IEC)不断为PLC的发展制定一些新的标准,如对各种类型的产品作一定的归纳或定义,或对PLC未来的发展制定一种方向或框架。
(8)工业软件发展迅速
与可编程序控制器硬件技术的发展相适应,工业软件的发展非常迅速,它使系统应用更加简单易行,大大方便了PLC系统的开发人员和操作使用人员。
可编程序控制器的输出信号类型可以是开关量、模拟量和数字量。输出单元从广义上分包含两部分:一是与被控设备相连接的接口电路,另一部分是输出的映像寄存器。
PLC运行时CPU从输入映像寄存器读取输入信息并进行处理,将处理结果放到输出映像寄存器。输出映像寄存器由输出点相对应的触发器组成,输出接口电路将其由弱电控制信号转换成现场需要的强电信号输出,以驱动电磁阀、接触器、指示灯等被控设备的执行元件。
以下链接皆有货
Indus Spinpro 9AN Speed Programmer Controller
Naval A3560 Amplifier
Autrotec Machine Schedule Supervision System Service Alarm Silence Switch
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Kongsberg Ga-2/A 313521 Ampplificatore Sensore Termocoppia Nicr-Niai 0-600C
Dbi Sala LS-1441 9194A Mobile Corda Impugnatura 5/8`` Crab 310 Lbs Confezi3
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Vega Tappo 63 CP63, Xxegsrkmx Trasmettitore -40 80 C -1 64bar IP66/67
Barnant 20 Digital Ph / Mv / Orp Digital Meter 559-3800
Vega Cap 63 CP63, Xxegsrkmx Transmitter -40 80 C -1 64bar IP66/67
Barnant 20 Digitale Ph / Mv / Orp Digitale Metro 559-3800
Barnant 20 Digital PH/mv/ORP digital Meter 559-3800
Vega cap 63 CP63,XXEGSRKMX Transmitter -40 80 C -1 64bar IP66/67
Oriental Motor 3GN9K Gear Head 3RK15GN-C Reversible Motor 15W 200V 50/60Hz 0.25A
Oriental Motor 3GN9K Gear Head 3RK15GN-C Reversible Motor xQ9 1B05612 1229026
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ACTREG ADA40 AR 14408 PN63 Actuator 150PSI 10BAR Ball Valve 1.5'' Double Acting
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Monninghoff 546.15.1.5 Electromagnetic Tooth Clutches Coupling High Torque Trans
Kappa SSC-404 Slave Clock Secondary `s Vintage Marine Antique Boats
SSC-404 Kappa Master Slave Clock Double Faced Bracket 2Hand 24VDC Maritime s
SSC-404 Kappa Master Slave Clock Double Faced Bracket 2Hand Maritime s 24VDC
SSC-404 Kappa Master Slave Clock Double Faced Bracket 2Hand Maritime s DC24V
Pilz PX 30/ PX30 307672 Operator Terminal Controller Display Monitor
Satec C191 Harmonic Manager Distortion Flow Meter Analyser
Atlas Copco RP-1 Triple Head Pneumatic Air Scaling Hammer Rust Paint Remove Tool
Trelawny SF3-EX Triple Headed Scaling Hammer ATEX Removal Thick Coating Rust
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Gefran TPS-2-V-B05C-T Pressure Transducer 2130X000X00 500BAR 3mV/V
Tokyo Keiso Co. LTD M-955 Flowmeter F91-19207-3
Tokyo Keiso Co. LTD M-955 Flowmeter F91-19207-1
Tokyo Keiso Co. LTD M-955 Flowmeter F91-19207-2
MC-019 SEIKO MC-272 Secondary Slave Clock `s Vintage Marine 24VDC️
MC-019 Seikosha MC-272 Secondary Slave Clock s Vintage Marine 24VDC
MC-019 MC-272 Seiko Secondary Slave Clock s Vintage Marine 24VDC
MC-272 MC-019 Seiko Secondary Slave Clock s Vintage Marine 24VDC
SSC-404 Kappa Double Faced Bracket 2 Hand 24VDC Master Clock Marine Slave Clock
Kappa SSC-404 Double Faced Bracket 2 Hand Master Clock Marine Slave clock 24VDC
SSC-404 Kappa Double Faced Bracket 2 Hand Master Clock Marine Slave Clock 24VDC
TIC Citizen 2221 Double Faced Bracket 2 Hand Master Slave Clock 24VDC
2221 TIC Citizen Double Faced Bracket 2 Hand Master Slave Clock 24VDC
Seiko MC-019 Marine Watch Slave Clock Double Mot Wall 30 Second Sub Nautical
Beijer Electronics Marine Electro Process AS MCL08.AI.P4 Ver. C 5703436538714
Vega cap 63 CP63,XXEGSRKMX Transmitter -40.80*C -1.64bar IP66/67
SEIKO Precision QC-6M3 Quartz Crystal Mater Clock Vintage Marine Genius
Kappa SSC-404 Master Slave Clock Double Faced Bracket 2Hand 24VDC Maritime s
Kappa SSC-404 Master Slave Clock Double Faced Bracket 2 Hand 24VDC Captain Room
Kappa SSC-404 Double Faced Bracket 2 Hand 24VDC Master Clock Marine Slave Clock
Kappa SSC-404 Double Faced Bracket 2 Hand MasterClock Slave Clock 24VDC Nautical
Kappa SSC-404 Master Clock Slave Clock 24VDC Double Faced Bracket 2 Hand Marine
Kappa SSC-404 Master Slave Clock Double Faced Bracket 2 Hand 24 VDC 2000
SEIKO MC-019 MC-272 Secondary Slave Clock `s Vintage Marine 24VDC
Fluke 971 Temperature Humidity Meter Psychrometer Record Capacity Tester
Fluke 971 Temperature Humidity Meter Psychrometer Record Capacity Tester
TIC CITIZEN 2221 Slave Clock Master Double Side Dial Rod 24VDC Electric
TIC CITIZEN 2986 Slave Clock Master Double Side Rod Dial 24VDC Electric
Citizen TC-2SS Clock Vintage Maritime Japan Rod Double Side Nautical
TIC CITIZEN 2221 Slave Clock Master Electric Double Side Rod Dial 24VDC
CITIZEN 2221 Slave Clock Master Double Side Rod Dial Battery Powered
Autronica Pressure Transducer Type GT-9 / 100 Bar 19974
General Electric Company Fans G.E.C Vintage Procelain Enamel Sign Board
MTI EPK 48VAC F3 Utilisation Speciale Latching Relay iversal Timer relay
Transceiver P.C.B 37239104 372310506 Echo Soder Marine
Trasmettitore P.C.B 37239104 372310506 Echo Soder Nautico Nave
Hoffman HMI Rotary Coupling Flanges Elbow Support Arm Enclosure Suspension System
Hoffman Hmi Girevole Coupling Flangia Gomito Supporto Braccio Recinto Sistema
Lenze 14.449.06.010 190VDC 20W 4 NM Brake Coil Clutch
E2V Technologie EEV MG5424 Marino Radar Piatto Pack 113mm Piastra GEN3 Magnetron
Yokogawa MLD Anello AlimentaziProcesso Indicatore Campo Digitale Indicatore
RS Datascan 7220 629-415 Analogico Input Misura Processore Dati Acquisizione
Datascan 7220 Rs 629-415 Analogico Input Misura Processore Dati Acquisizi
E2V Technology EEV MG5424 Marine Radar Flat Pack 113mm Baseplate GEN3
RS Datascan 7220 629-415 Analog Input Measuring Processor Data Capture
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Yokogawa MLD Loop Powered Processor Indicator Field Digital Indicator
Autrotec Machine Schedule Supervision System Alarm Service Silence ed
Parker T5-HE03-102 Micro Diaframma Pompa
MTI CACTT-MT Z04AA 48VAC IE1 M6 Elettrico Tempo Relè 3S Sotto Tensione
MTI Cactt MT Y56aa 48VAC IE1 P7 Elettrico Tempo Relè 30S Sotto Tensione
MTI EPK 48VAC F3 Utilizzo Speciale a Scatto Relè iversale Timer Relè
MTI CACTT-MT Y56AB 48VAC IE1 R7 Elettrico Tempo Relè 30S Sotto Tensione
CHAUVIN ARNOUX Okph 220V 60Hz Relè Ok Ph 16 Pin
MTI EPK 48VAC F3 Use Special Rest Relay iversal Timer Relay
MTI EP5 EX508 48V 60HZ iversale Elettrico Relè Multifzione
MTI CACTT-MT Z04AA 48VAC IE1 M6 Electric Time Relay 3S der Voltage
Aurora UO080140A0 190002.01 AlimentaziElettrica Trasformatore
MTI CACTT-MT Y04AA 220VAC IE1 N9 Elettrico Tempo Relè 30S Sotto Tensione
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