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
Rittal VR3851501 4 Way Module 250V 50Hz 13A BS5733 /un
Rittal VR3851503 5 Metres Mains Lead Original Box/Un
Rittal-Werk SK 3106000 SK3106000 Panel Heater NOB
Rittal-Werk SK 3106000 SK3106000 Panel Heater NOB
Ritz KSZR-100/1 KSZR1001 2005 / 333903
Ritz KSZR-100/1 KSZR1001 2005 / 333903
RITZ voltage converter 4KN10286CH28ZA13
RKC C100FD07-M*NN REX-C100 Temperature Controller
RKC C100FD07-M*NN REX-C100 Temperature Controller
RKC CB700 Temperature Controller
RKC CB700 Temperature Controller
RKC Instrument H-PCP-A-24N-M*AB HPCPA24NMAB SR MINI HG SYSTEM Power CPU Module
RKC Instrument H-PCP-A-24N-M*AB HPCPA24NMAB SR MINI HG SYSTEM Power CPU Module
RKC Instruments M-PCP-A-24N-M*AB/CE MPCPA24NMABCE SR Mini HG System
RKC Instruments M-PCP-A-24N-M*AB/CE MPCPA24NMABCE SR Mini HG System
RKC Record Key Lock Math Chart End Alarm
RKC Record Key Lock Math Chart End Alarm
RKC REX-AC410 AC410401-4*HJNN AC4104014HJNN Controller
RKC REX-AC410 AC410401-4*HJNN AC4104014HJNN Controller
RKC REX-C700 REXC700 REX-C700FK02-M*AN Temperature Controller
RKC REX-C700 REXC700 REX-C700FK02-M*AN Temperature Controller
RKC REX-C72 REXC72 Temperature Controller
RKC REX-C72 REXC72 Temperature Controller
RKC REX-P250 REXP250 Temperature Controller w/ Rusts
RKC REX-P250 REXP250 Temperature Controller w/ Rusts
RKC Syscon C100FJA3-M*NN 410004849 ZK-852 Temperature Controller
RKC Syscon C100FJA3-M*NN 410004849 ZK-852 Temperature Controller NOB
RKC Syscon C100FJA3-M*NN 410004849 ZK-852 Temperature Controller
RKC Syscon C100FJA3-M*NN 410004849 ZK-852 Temperature Controller NOB
RLC (9950) S-5743 12VDC 75Ohm
RLC (9950) S-5743 12VDC 75Ohm
RM-1075D-E RM1075DE Lens
RM-1075D-E RM1075DE Lens
RMS TGD3000-604.01 TDG3000604.01 Board U
RMS TGD3000-604.01 TDG3000604.01 Board U
RNA EBC-3 EBC3 Speed Controller 230V
RNA EBC-3 EBC3 Speed Controller 230V
Roal 137B 97P5253 Power Supply Unit
Roal 137B 97P5253 Power Supply Unit
Robers & Co GNR 0.4/24 Transfo
Robo Cylinder E-Con RCM-E RCME Teaching Pendant
Robo Cylinder E-Con RCM-E RCME Teaching Pendant
Robo Cylinder RCP2-SA5-I-PM-6-300-P1-P-NM RCP2SA5IPM6300P1PNM Linear Actuator
Robo Cylinder RCP2-SA5-I-PM-6-300-P1-P-NM RCP2SA5IPM6300P1PNM Linear Actuator
Robo Cylinder RCP-SA6I-M-150-M-CR-G2-SU-SP Linear Actuator
Robo Cylinder RCP-SA6I-M-150-M-CR-G2-SU-SP Linear Actuator
ROBO-618 216006180037 Board
ROBO-618 216006180037 Board
Rockwell Automation 2090-XXLF-3100 2090XXLF3100 Line Filter 100A 480Vac
Rockwell Automation 2090-XXLF-3100 2090XXLF3100 Line Filter 100A 480Vac
Rockwell Automation 314891-A01 193140-B04 Board
Rockwell Automation 314891-A01 193140-B04 Board
Rockwell Automation DEK 23-2 STPR+BGR601-4:1+CONS DEK 232 STPRBGR60141 Motor
Rockwell Automation DEK 23-2 STPR+BGR601-4:1+CONS DEK 232 STPRBGR60141 Motor
Rockwell Automation DEK S240-1A/6+500LD+GPL52-50:1 Motor w/ GPL 052-2CG/50-1
Rockwell Automation DEK S240-1A/6+500LD+GPL52-50:1 Motor w/ GPL 052-2CG/50-1
Rockwell SRGA 809.51-00 SRGA8095100 U
Rockwell SRGA 809.51-00 SRGA8095100 U
Rocky KS-112 BB23100041+SNT-M3V BB23100120 Board and Chassis
Rocky KS-112 BB23100041+SNT-M3V BB23100120 Board and Chassis
ROCKY-3702EV-R6 ROCKY3702EVR6 Industrial Motherboard w/ 2pcs RAM
ROCKY-3702EV-R6 ROCKY3702EVR6 Industrial Motherboard w/ 2pcs RAM
Rodenstock 11291037 254mm Lens
Rodenstock 11291037 254mm Lens
Rodenstock 3801.262 3801262 75mm Lens
Rodenstock 3801.262 3801262 75mm Lens
Rodenstock Rodagon 1:4 f=60mm Enlarging Lens
Rodenstock Rodagon 1:4 f=60mm Enlarging Lens
RodiSys H11H043A 060-00671-0000 Module Cards
RodiSys H11H043A 060-00671-0000 Module Cards
Rofin 746032 F 80 C Lens
Rofin 746032 F 80 C Lens
Rofin Baasel Lasertech B02-40100256 102100385 S. Halter
Rofin Baasel Lasertech B02-40100256 102100385 S. Halter
Rofin ILS 1 102100431-H-A 111247-093
Rofin ILS 1 102100431-H-A 111247-093
Rofin SDIMITRA Board
Rofin SDIMITRA Board
Rofin Sinar 0P0_V110.DDF 0P0V110DDF Laser Control Card
Rofin Sinar 0P0_V110.DDF 0P0V110DDF Laser Control Card
Rofin Sinar ALI3 ALI 3 Circuit Module Board w/ OPO_V403.DDF
Rofin Sinar ALI3 ALI 3 Circuit Module Board w/ OPO_V403.DDF
Rofin-Sinar Laser Front Panel Display w/ Key
Rofin-Sinar Laser Front Panel Display w/ Key
Rohde & Schwarz 1090.3523 10903523 Fuse Board
Rohde & Schwarz 1090.3523 10903523 Fuse Board
Rohde & Schwarz 192.0061.02 No Cover As Is
Rohde & Schwarz 192.0061.02 No Cover As Is
Rohde & Schwarz 342.5410.12 Synthesizer for 354-3000-52 Test Receiver
Rohde & Schwarz 342.5410.12 Synthesizer for 354-3000-52 Test Receiver
Rohde & Schwarz 354.4813.98 Computer Board for 354-3000-52 Test Receiver
Rohde & Schwarz 354.4813.98 Computer Board for 354-3000-52 Test Receiver
Rohde & Schwarz 826.4517.52 826451752 Signal Generator 100KHz...1000MHz SMX
Rohde & Schwarz 826.4517.52 826451752 Signal Generator 100KHz...1000MHz SMX
Rohde & Schwarz CMD65 Digital Radiocommunication Tester No Display AS IS
Rohde & Schwarz CMD65 Digital Radiocommunication Tester No Display AS IS
Rohde & Schwarz PTW 70 PTW70 Wireless Protocol
Rohde & Schwarz PTW 70 PTW70 Wireless Protocol
Rohde & Schwarz SMU200A 1400.3400.16 104513 Assembly Part
Rohde & Schwarz SMU200A 1400.3400.16 104513 Assembly Part
Rohde & Schwarz VSA 2013.6057.03 Video Measurement System
Rohde & Schwarz VSA 2013.6057.03 Video Measurement System
Rohde & Schwarz VSA 2013.6057.03 Video Measurement System As Is
Rohde & Schwarz VSA 2013.6057.03 Video Measurement System As Is
Rohde&Schwarz TS7000 TS-PCA3 1152.2601.00 Backplane Board for TSVP TS-PCA3
Rohde&Schwarz TS7000 TS-PCA3 1152.2601.00 Backplane Board for TSVP TS-PCA3
Roller Drive 485MMOD 59M
Roller Drive 485MMOD 59M
Roller Take Off Assy 75cm
Roller Take Off Assy 75cm
Rorze RD-23 RD23 2P Pulse Motor Driver 30Days Warranty
Rorze RD-23 RD23 2P Pulse Motor Driver 30Days Warranty
Rose Electronics SPL-80 SPL80 CPU Access Controller
Rose Electronics SPL-80 SPL80 CPU Access Controller
Rosemount 1151LT5EC0A12DM3 Flange-Mounted Liquid Level Transmitter
Rosemount 1151LT5EC0A12DM3 Flange-Mounted Liquid Level Transmitter
Rosemount 248HANAN0NSQ4 01111-1401-0002 248 HART Temperature Transmitter
Rosemount 248HANAN0NSQ4 01111-1401-0002 248 HART Temperature Transmitter
Rosemount 3051CA2A52A1AM5E8Q4Q8A9078 Pressure Transducer Un
Rosemount 3051CA4A22A1BB4E8L4DFQ4 Pressure Transducer
Rosemount 3051S1LD4AA1A1020DFF91DA00E104 Pressure Transmitter
Rosemount 3051S1LD4AA1A1020DFF91DA00E104 Pressure Transmitter
RoseMount 3144P D5A2NAC2Q4U1XA Transmitter
RoseMount 3144P D5A2NAC2Q4U1XA Transmitter
Rosemount Karlstein 31320604 1Pt 100/1/3 B/3
Rosemount Karlstein 31320604 1Pt 100/1/3 B/3
Rosemount KEMA 99ATEX8715X Temperature Assembly
Rotary Evaporator RE52 RE52CS Vertical Condenser
Rotary Evaporator RE52 RE52CS Vertical Condenser
Roth & Rau 10006079 85409900 MW Applicator
Roth & Rau 10006079 85409900 MW Applicator
Rotometrics Z180 66102952-2 30034709 Roll 180T Hardcase Print CY
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