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
LENZE Frequency Inverter EVS9323-ESV004, 0-480V 3.9A 3.2kVA SAMEDAY
LENZE Frequency Inverter EVS9323-ESV004, 0-480V 3.9A 3.2kVA SAMEDAY
Lenze frequency inverter Type: EVF8246-E-V921 SAMEDAYSHIP
Lenze G50BH160MVBR3C00 W/M55AP080M045EF0WT (TITIIIJ)
Lenze G50BH160MVBR3C00 W/M55AP080M045EF0WT (TITIIIJ)
Lenze i550 I55BE230F10V10 001S frequency converter + I5MADK000000
Lenze I5CA5N02000VA0000S
LENZE Inverter E82EV3712C
LENZE Inverter Drives 8400 Type: E84AVHCE7512SB0 frequency SAMEDAY SHIP
LENZE Inverter Drives 8400 Type: E84AVHCE7512SB0 frequency SAMEDAY SHIP
LENZE Inverter E82EV3712C
LENZE LENZE E94ARNE0134 Servo Drives 9400 Single Drive
LENZE LENZE E94ARNE0244 Servo Drives 9400 Single Drive
LENZE LENZE EVF8213-E Inverter 2.2 kw 380V
LENZE Lenze SDSR 056-22
LENZE MCS 06I41LSKMP1-Z0B0-ST6S00N-R0SU/G50AB045MHAK2C NDA ON REQ
LENZE MCS 06I41LSKMP1-Z0B0-ST6S00N-R0SU/G50AB045MHAR2C NDA ON REQ
LENZE MDFKABS080-22 3~SERVOMOTOR (tititit)
LENZE MDFKABS080-22 3~SERVOMOTOR (tititit)
Lenze MDFKAIG112-42 Servo motor
Lenze MDFKARS080-22 Servo motor
LENZE MDFQAGX100-22 3-PHASE MOTOR / SW/
Lenze MDFQAIG 112-22 SERVO MOTOR (CRACKED CONNECOTR)
Lenze MDSKABA100-22 Servo motor (TITIIIJ)
LENZE MDSKABS056-22(TIIIT
Lenze MDSKSRS056-33 servo motor 1.8 KW rpm4000 SAMEDAY SHIP
Lenze MDSKSRS056-33 servo motor 1.8 KW rpm4000 SAMEDAY SHIP
Lenze MDSKSRS056-33 SERVO MOTORS 4000RPM, 1.8KW
Lenze Multi Drive HighLine E94AMHE0024
LENZE P30GAH80300F3G0XXX-02s3c015000
LENZE P30GAH80300F3G0XXX-02s3c015000
Lenze Power Unit i550 I5DBE240F10V10000S
Lenze Power Unit i550 I5DBE311F10V10000S 11kW
Lenze servo MDSKSRS056-33 .9KW, 2.9NM
Lenze Servo Drive ProfiNet Communication Module E94AYCER - SW VERSION 00.70.20
LENZE SERVO INVERTER 33.493-E
LENZE SERVO INVERTER 33.493-E
LENZE SERVO INVERTER EVF9328-EV
Lenze servo MDSKSRS056-33 .9KW, 2.9NM
Lenze Servo Motor MDSKSBS031X33 (S4,L3
Lenze servo motor mdsksrs036-23 EXPRESS
Lenze servo motor mdsksrs036-23 OVERNIGTH ON REQ
Lenze servo motor MDSKSRS056-23 OVERNIGHT
LENZE SERVOMOTOR MDSKSRS 040-53 3400RPM, 4.2A MDSKSRS-040-53
Lenze Single Drive High Line Type ELCAFHI1524 Input 400 / 500V 50 / 60Hz 5.5 / 4
Lenze SL208S AC Tech Variable Frequency AC Drive 0.75HP 208/2400VAC 1Ph
Lenze SM015S AC Tech Variable Speed Drive VFD 1.5Hp 120V 1PH In 240V 3PH Output
LENZE SM210 AC TECH INVERTER DRIVE
Lenze SM210S AC Tech VFD Variable Frequency Drive 1Hp 0.75kw 240V 1Ph Input
Lenze SM410 AC Tech Variable Frequency AC Drive 1HP 480VAC 3Ph
LENZE StateLine C 8400 E84AVSCE1524Sb0 1.50kW Frequency Inverter
LENZE StateLine C 8400 E84AVSCE1524SX0 1.50kW Frequency Inverter SAMEDAY SHIP
LENZE StateLine C 8400 Lenze E84AVSCE7514SX0 Frequency Inverter B
LENZE StateLine C 8400 Lenze E84AVSCE7514SX0 Frequency Inverter B
LENZE StateLine C 8400 Lenze E84AVTCE5514SB0 Frequency Inverter
Lenze| EVF8203_E | Lenze Drive
Lenze| EVF8203_E | Lenze Drive
LEROI 769906 / 769906 ECONOTROL CIRCUIT BOARD
Leroy Somer Motor 3 LS63 0.1 KW,200V,1000RPM + TSUBAKIMOTO EMERSON GEAR S4L3041
Leroy Somer 115UMB301CBCAA Servo Motor
Leroy somer M400-074 00660 A Variat
Leroy Somer Motor 3 LS63 0.1 KW,200V,1000RPM + TSUBAKIMOTO EMERSON GEAR S4L3041
LEROY SOMER SMPOSPLUS SM POS PLUS
Leroy Somer SP1401 Unidrive SP Universal Speed Drive 0.75/1.1 KW 3 PH 4.1 Amp
Leroy-Somer LSMVR-80L Gearbox Speed Reducer Motor 38.9:1 36.8 RPM 230/460V .55kW
LES3600LS - Eaton - Trip Unit
LES3600LSI - Eaton - Trip Unit
LESCO VRM3002 Fowler Ht Gauge VRM3002 Control (S2, L1)
Leslie 841H2X1SL0 3" Flange 125CL 60PSIG Body Size 3 450°F MAX Gate Valve
LEUKHARDT DEASYAM PLC CONTROLLER 100/00 6219114
LEUKHARDT DEASYDE PLC CONTROLER 100/11 6219113
LEUKHARDT DEASYIG PLC CONTROLLER 100/00 6219120
LEUZE - 547813 SAFETY CONTROL RELAY, MSI202
LEUZE - 547813 SAFETY CONTROL RELAY, MSI202
Leuze 50113677 AMS 304i 40 Optical distance sensor
Leuze AMS 304i 120 / optical distance sensor Profibus DP / range
Leuze Electronic DDLS 78.6.1 Serial Optical Data Transmission
Leuze Electronic DDLS 78.6.1 Serial Optical Data Transmission
Leuze Electronic MA 31 110 Connection
Leuze Electronic MA 31 110 Connection
Leuze Electronic MDS 70 Barcode Decoder DE 70 and Scanner Head BCL5-140 110
Leuze Electronic OMS2/170 IS Laser Distance Meter
Leuze light curtain CML720i-T20-1430.A-V1-M12/ CML720i-R20-1430.A
LEUZE LS 95/2.8 SE-L.1 / LS9528SEL1
LEUZE LUMIFLEX CR14750BH LIGHT CURTAIN RECEIVER
LEUZE LUMIFLEX CR30900/BH6 COMPACT LIGHT CURTAIN RECEIVER
LEUZE LUMIFLEX CR501050MBH5 LIGHT CURTAIN COMPACT RECEIVER 585510
LEUZE LUMIFLEX CT14750BH LIGHT CURTAIN TRANSMITTER
LEUZE LUMIFLEX CT30900/BH3 COMPACT LIGHT CURTAIN TRANSMITTER
LEUZE LUMIFLEX CT30900BH COMPACT LIGHT CURTAIN TRANSMITTER
LEUZE LUMIFLEX CT501050MBH3 LIGHT CURTAIN COMPACT TRANSMITTER 582510
Leuze Lumiflex ER30-450 Transmitter
Leuze Lumiflex ER30-450 Transmitter
Leuze Lumiflex ET30-450 Transmitter
Leuze Lumiflex ET30-450 Transmitter
Leuze MLD510-R1L + MLD500-T1L W/ 2x 678058 CB-M12-25000E- 5G
LEVITON 42412DS3 SURGE PROTECTIVE DEVICE
Leybold EK110000827 Service kit purge gas port SCREWLINE S NDA ON REQ
LEYBOLD VAKUUM TR901 PRESSURE SWITCH
Leybold-Heraeus 0800912-2 Rev C D.C. Power Supply Needs Capacitor Resoldered
LF-102.4BM-C05P Encoder
LF990 SIGNAL LEVEL METER LEADER
LFD3150R - Eaton - Current Limiter
LFE INSTRUMENTS 2000 TEMPERATURE CONTROLLER
LGA150A-5-Y Cosel POWER SUPPLY
LGA150A-5-Y Cosel POWER SUPPLY
LGA36400U31X - Square D - Molded Case Circuit Breaker
LGA36400U33X - Square D - Molded Case Circuit Breaker
LGA36400U44X - Square D - Molded Case Circuit Breaker
LGA36400U53X - Square D - Molded Case Circuit Breaker
LGA36600U31X - Square D - Molded Case Circuit Breaker
LGA36600U33X - Square D - Molded Case Circuit Breaker
LGB2B020B - Siemens - Molded Case
LGB3B015B - Siemens - Molded Case Circuit Breaker
LGB3B025B - Siemens - Molded Case Circuit Breaker
LGB3B030B - Siemens - Molded Case Circuit Breaker
LGB3B035B - Siemens - Molded Case
LGB3B040B - Siemens - Molded Case Circuit Breaker
LGB3B045B - Siemens - 45 Amp Rating Plug
LGB3B050B - Siemens - Molded Case Circuit Breaker
LGB3B060B - Siemens - Molded Case Circuit Breaker
LGB3B070B - Siemens - Molded Case Circuit Breaker
LGB3B080B - Siemens - Molded Case Circuit Breaker
LGB3B090B - Siemens - Molded Case Circuit Breaker
LGB3B100B - Siemens - Molded Case Circuit Breaker
LGB3K060B - Siemens - Molded Case
LGE3500FAG - Eaton - Molded Case Circuit Breaker
LGE3600FAG - Eaton - Molded Case Circuit Breaker
LGG3B020L - Siemens - Molded Case Circuit Breaker
LGG3B030L - Siemens - Molded Case Circuit Breaker
LGG3B040L - Siemens - Molded Case Circuit Breaker
LGG3B050L - Siemens - Molded Case Circuit Breaker