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
Philips LRC5933/10 Light Master Modular 9LS
Philips MTHP 6PINS+TYPE_PLUG 7322 074 0717
Philips MTHP 6PINS+TYPE_PLUG 7322 074 0717
Philips PE 1140/500 Power Supply
Philips PE 1140/500 Power Supply
Philips PE 1147/10 U AC 110/220V Board
Philips PE 1147/10 U AC 110/220V Board
Philips PE 1244/00 9415 012 44001 Power Supply
Philips PE 1244/00 9415 012 44001 Power Supply
Philips PE 1258/31 D PE125831D DC 5V 18A
Philips PE 1258/31 D PE125831D DC 5V 18A
Philips PE 1258/31 U PE125831U AC 110/220V
Philips PE 1258/31 U PE125831U AC 110/220V
Philips PE 1264/31 U PE126431U AC 110/220V Power Supply
Philips PE 1264/31 U PE126431U AC 110/220V Power Supply
Philips PE 1265/60 PE126560 Power Supply
Philips PE 1265/60 PE126560 Power Supply
Philips PE 1537/00 PE1537 DC Power Supply 40V-1A
Philips PE 1537/00 PE1537 DC Power Supply 40V-1A
Philips PE 1642/00 PE 1642 DC Power Supply 20V-20A
Philips PE 1642/00 PE 1642 DC Power Supply 20V-20A
Philips PE 1905/00U PE190500U Power Supply
Philips PE 1905/00U PE190500U Power Supply
Philips PE 1942/00 U Power Supply AC 110/230V 6/4A 47-63Hz DC 24V 12.5A
Philips PE 1942/00 U Power Supply AC 110/230V 6/4A 47-63Hz DC 24V 12.5A
Philips PE 4142/01 U PE414201U Power Supply
Philips PE 4142/01 U PE414201U Power Supply
Philips PE1265/20 PE126520 Power Supply 220VAC/300VDC
Philips PE1265/20 PE126520 Power Supply 220VAC/300VDC
Philips PE4110/01U 9415-041-10011 PE411001U 941504110011 Power Supply
Philips PE4110/01U 9415-041-10011 PE411001U 941504110011 Power Supply
Philips PM 2160 PM2160/01 pt100 Input System 21
Philips PM 2160 PM2160/01 pt100 Input System 21
Philips PM 5108L PM5108L 1Hz - 1MHz Function Generator
Philips PM 5108L PM5108L 1Hz - 1MHz Function Generator
Philips PM 6302 PM6302 9452 063 02101 RCL Bridge Power Button Missing
Philips PM 6302 PM6302 9452 063 02101 RCL Bridge Power Button Missing
Philips PR 6206/23 N PR620623N Beam Load Cell
Philips PR 6206/23 N PR620623N Beam Load Cell
Philips VR3261/52 Video Casette Recorder
Philips VR3261/52 Video Casette Recorder
Philips VR599/55 VR59955 Stereo Video Recorder
Philips VR599/55 VR59955 Stereo Video Recorder
Philips VR610/55 Head Hi-Fi Stereo Video Recorder U
Philips VR610/55 Head Hi-Fi Stereo Video Recorder U
Philips VR799/55 w/dent
Philips VR799/55 w/dent
Phoenix Contact 2891935 FL Switch SFN 14TX/2FX
Phoenix Contact 2891935 FL Switch SFN 14TX/2FX
PHOENIX CONTACT BAG2PM12MSB/10.0910/M12FSB
Phoenix Contact CM 35.125/175 CM175-PS-230AC/24DCU/10 Power Supply
Phoenix Contact CM 35.125/175 CM175-PS-230AC/24DCU/10 Power Supply
Phoenix Contact DIK 1.5LA 24RD/OM Actuator Clamp 2715856
Phoenix Contact ELR H5IESSC24DC/500AC2 Hybrid Engine Starter 2900414
Phoenix Contact IBS RBCT/C01/15 Interbus Cable Made Up
PHOENIX CONTACT MACX MCREXSL2NAMRO Disconnect Circuit Amplifier 2865476
PHOENIX CONTACT MACX MCREXSLRPSS2I2I Power Separator Amplifier 2865382
PHOENIX CONTACT MCR1CLPI/I00 Passive Separator 2814016
PHOENIX CONTACT MCRS10/50UIDCI
Phoenix Contact MCRSWS/U Limit Switch 2766465
Phoenix Contact MINI MCRSL1CPII Passive Separator 2864419
Phoenix Contact MINIPS100240AC/24DC/1.3 Power Supply 2866446
Phoenix Contact MINIPS1224DC480DC/07 DC/DC Converter 2320021
Phoenix Contact Power Converter QUINTPS3X400500 AC/24DC
Phoenix Contact PS-3x207 AC/24DC/30/F 2939292 78-106-2300 Power Supply w/ burnt
Phoenix Contact PS-3x207 AC/24DC/30/F 2939292 78-106-2300 Power Supply w/ burnt
PHOENIX CONTACT PSIDATA/FAXMODEM/R232 Modem 2708203
Phoenix Contact PSMEGRS232/TTYP/2K Interface Converter 2761253 /un
Phoenix Contact PSRFSP2X1 Coupling Relay 2986957
Phoenix Contact PSR-RSM4 PSR-SCP-24DC/RSM4/4X1 Safety Relay
Phoenix Contact PSR-RSM4 PSR-SCP-24DC/RSM4/4X1 Safety Relay
PHOENIX CONTACT PSRSCP24DC/FSP2/2X1/1X2 Safety Relay 2986575 /un
PHOENIX CONTACT PSRSCP24UC/ESAM4/2X1/1X2 Security Relay 2900525
PHOENIX CONTACT PSRSCP24UC/URM/5X1/1x2 Coupling Relay 2981952
PHOENIX CONTACT PSRSCP24UC/URM/5X1/1x2 Relay 2981952 Male Missing
PHOENIX CONTACT PSRSCP24UC/URM4/5X1/2X2 Security Relay
Phoenix Contact PSR-SPP-24DC/RSM4/4X1 PSRSPP24DCRSM44X1 Safety Relay
Phoenix Contact PSR-SPP-24DC/RSM4/4X1 PSRSPP24DCRSM44X1 Safety Relay
Phoenix Contact QUINTDIODE/40 2938963 Redundancy Module
Phoenix Contact QUINTPS/48DC/24DC/5 DC/DC Converter 2320144
Phoenix Contact QUINT-PS-100-240AC/24DC/5 2938581 Power Supply 24VDC/5A
Phoenix Contact QUINT-PS-100-240AC/24DC/5 2938581 Power Supply 24VDC/5A
PHOENIX CONTACT QUINTPSTAC/24DC/5
Phoenix Contact SAC2PMSB/10.0910/FSB SCO 1518151 Sensor Cable Un/
PHOENIX CONTACT Sensor/Actuator Data Connector SAC5PM12MS/5.0920/M12FS
Phoenix Contact TRIO-PS/3AC/24DC/4D TRIOPSAC24DC4D 2866404 Power Supply 24V
Phoenix Contact TRIO-PS/3AC/24DC/4D TRIOPSAC24DC4D 2866404 Power Supply 24V
Phoenix Contact UDK 4 Through Clamp 2775016 1 Krt/50pcs
Phoenix Contact USLKG 3 0441083 Protective Conductor Row Clamp 50pcs/Krt
PHOENIX CONTACT USLKG3 USLKG3 TERMINAL BLOCK BOX OF 50 PIECES un
Phoenix Contact WiFi 5100 Access Point Radio Module 2700718
Phoenix Digital OLC-ETH-85-D-ST-A1 OLCETH85DSTA1 Fiber Optics
Phoenix Digital OLC-ETH-85-D-ST-A1 OLCETH85DSTA1 Fiber Optics
PHÖNIX CONTACT EMG 90DIO32M/LP
Photon Energy ULLA II REV 2.20 D0-F1428-1A01 Board w/ UCV REV 2.00
Photon Energy ULLA II REV 2.20 D0-F1428-1A01 Board w/ UCV REV 2.00
Phytec 1002.6 MC535(A) Board
Phytec 1002.6 MC535(A) Board
Phytron ASE 92/70-36 MINI ASE927036 2004779
Phytron ASE 92/70-36 MINI ASE927036 2004779
Phytron RSH 80.200.70.5 Motor
Phytron RSH 80.200.70.5 Motor
Phytron RSH 80-200-7.5 Motor
Phytron RSH 80-200-7.5 Motor
Phytron RSS 66.200.2.5 5002066 Hybrid Stepper Motor
Phytron RSS 66.200.2.5 5002066 Hybrid Stepper Motor
Phytron ZSO-102/140 MINI 10A/14 PCB Stepper
Phytron ZSO-102/140 MINI 10A/14 PCB Stepper
Phytron ZSS 52.200.2,5 Stepper Motor w/ PLG52
Phytron ZSS 52.200.2,5 Stepper Motor w/ PLG52
Phytron-Elektronik MSO 141-120 MS0 Controller
Phytron-Elektronik MSO 141-120 MS0 Controller
Phytron-Elektronik MSO 51-90 MS0 Controller
Phytron-Elektronik MSO 51-90 MS0 Controller
Phytron-Elektronik MSO 51-90 MS0 w/ missing part
Phytron-Elektronik MSO 51-90 MS0 w/ missing part
PI Physical Instruments Mercury C863.11 DC Motor Controller
PI02P01A-1 B Board
PI02P01A-1 B Board
PI-216 Ver 3.0 Board
PI-216 Ver 3.0 Board
PICMG PCI-12S PCI12S Backplane Industrial Circuit Board
PICMG PCI-12S PCI12S Backplane Industrial Circuit Board
PICMG PX-14S5-RS-R30 PX14S5RSR30 Board
PICMG PX-14S5-RS-R30 PX14S5RSR30 Board
Picolo 2000 EURESYS 1155 D1_0 Video Capture Card Board
Picolo 2000 EURESYS 1155 D1_0 Video Capture Card Board
Pierce Chemical Company 18930 Reacti-Therm III Heating / Stirring Module
Pierce Chemical Company 18930 Reacti-Therm III Heating / Stirring Module
Piezo MT-4200 MT4200 Stage Controller w/ Breakage
Piezo MT-4200 MT4200 Stage Controller w/ Breakage
Pike Technologies AutoPRO Controller 100-230 VAC 47-63 Hz 50W max. Defective
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