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
BALDOR VM3613T MOTOR (145415 - )
VM3613T MOTOR (145415 - )
KONTRON ASMC2177 PLC MODULE
NIDEC CORP A2P2C MOTOR
ASCO WPB210-101.24/50-60 VALVE
SEW-EURODRIVE SAF47DT80K4 MOTOR .75HP, 1700RPM, 3 PHASE, W/ 82.23.77772.7/4
VAISALA SENSOR SYS HMT3303G0B101BCAB200A0AAABAA1 SENSOR
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FANUC 0M9/3000 AC SERVO MOTOR (146804 - )
INDRAMAT DDS03.2-W050-B AC SERVO DRIVE (94974 - )
CENTRIC TRIG-O-MATIC CLUTCH /ATTATCHED HUB CITY BEVEL GEAR DRIVE (214 - )
NORD 3D N140TC GEARMOTOR (149688 - )
BAG BAC145L30/3/RA/BR/TS MOTOR
ODRIVE CMP40M/BK/PK/AK0H/SB1 MOTOR
INDRAMAT DDS03.2-W050-B SERVO DRIVE
KEYENCE CORP SR-752 BARCODE SCANNER
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ADEPT TECH 30330-15000 OPERATING MECHANISM
YASKAWA ELECTRIC E7CVB014C DRIVE
LANNER ELECTRONICS LEC-2010P-3 MODULE (97748 - )
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ABB AF580-30 CONTACTOR
SCHNEIDER ELECTRIC 140DAO85300 PLC MODULE
OKUMA BL-MC200J-20T MOTOR
TIGEAR 35S40R GEAR (153092 - )
SIEMENS 1LE10231AC334AA5 THREE-PHASE MOTOR 1.5HP 60HZ 1.15SF 975-1180RPM (F0570
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FANUC IC693PRG300E PLC MODULE
ALLEN BRADLEY 140M-F8E-C45 SERIES C CIRCUIT BREAKER
BOSTON GEAR MOTOR HUTFB-C, 8-125004-01, TYPE SC, FRAME J56CZ, 230/460 V, 3
FANUC A06B-0034-B675 SERVO MOTOR
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KRISTEL C72291 HMI
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ITALWEBER OCM0641505172 TRANSFORMER (145533 - )
SIEMENS 1FT6044-1AF71-4AG1 SERVO MOTOR
ABB BSM90N-375AA SERVO MOTOR (131039 - )
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KEY TECHNOLOGY MFS 268 XXL V DRIVE
BURKS PUMPS T3204DF6-2-1/2-AI PUMP
DANFOSS 132L3697 DRIVE
MAX AIR MT51 SR4 F10/F12 ACTUATOR
SIEMENS 6AV6 542-0AC15-2AX0 HMI
ALLEN-BRADLEY 20AD5P0A0AYNNNNN FRN 2.003 W/ 74104-472-51 REV 05 W/
ACCU-SORT AXIOM W/ PS-4024 SCANNER W/ DC POWER SUPPLY (141087 - )
ALLEN BRADLEY 6181P-12NP2KH HMI
ALLEN-BRADLEY MPL-B430P-MK22AA SERVO MOTOR 2.4 KW 5000RPM W/ALPHA REDUCER
REGAL BELOIT CTIPEP 1.0 2/4 143T STK PE MOTOR
YASKAWA ELECTRIC JZRCR-APU01-1 CONTACTOR
SIEMENS 6ES7647-5BG10-0JX0 DRIVE
RELIANCE P56X4717M GEARMOTOR 1HP 208-230/460V W/ DODGE HB482CN56C RATIO:
FANUC A06B-6105-H002 SERVO DRIVE
1 FANUC A06B-6105-H002 SERVO DRIVE
US MOTORS VAV-TF-GW/6-143-6 MOTOR
FANUC A06B-0147-B675 SERVO MOTOR
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MAGNETEK MVB015 DRIVE
JORDAN VALVE 73N-B, 81085, VALVE POSITIONER 03829412653578 (9310 - )
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ELECTRO CAM PS-6144-24-P16M09-L-MB PROCESS CONTROLLER
EMERSON SOLA 63-23-150-8 MINI/MICRO COMPUTER REGULATOR (133945 - )
ROSEMOT 8800 CR020SA1N1D1M504 FLOW METER
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SIEMENS 6SL3120-2TE15-0AA4 DRIVE
ASEA BROWN BOVERI 3HAB8101-8 SERVO DRIVE
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ELAU SM-100-40-080-P0-45-S1-B1 SERVO MOTOR
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FINCOR 2200S ADJUSTABLE SPEED DRIVE (139590 - )
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LINX FA22019/3103 PRINTHEAD ASSEMBLY (44559 - )
NSK NN3026MBKRCC1P4 BEARING
ALLEN BRADLEY 2711P-RDT10C SERIES C HMI
PENTAIR WC-8100-3 WITH PDN 500 VALVE
MITSUBISHI SF-HRCA0 MOTOR
DANAHER MOTION PC834-101-N SERVO DRIVE
BR 8V1090.00-2 SERVO DRIVE
SICK M40E-68A303RB0 SENSOR
STERLING ELECTRIC 501709 PUMP
FANUC A06B-0314-B505 SERVO MOTOR
SCHNEIDER ELECTRIC 170AAI14000C PLC MODULE
ALLEN BRADLEY 6181P-12NP2KH SERIES A HMI
MOOG G416-805 SERVO MOTOR
TOSHIBA 0014SDSR42A-P ELECTRIC MOTOR 1HP 1750RPM 3.4/1.7A 230/460V 60HZ (27195
ALLEN BRADLEY 1336S-B010-AA-EN5-L5 SERIES D DRIVE
HUB CITY 0221-92532 GEAR
ALLEN BRADLEY 140M-K8P-D40 CIRCUIT BREAKER
ASEA BROWN BOVERI CDP3320 WITH BMQ224-3 MOTOR
CONTINENTAL HYDRAULICS PVR15-20B15-RF-0-51218BT-60L PUMP
ALLEN-BRADLEY 1326AB-B430G-M2L/B AC SERVO MOTOR (153725 - )
ALLEN BRADLEY 2711-T10C8 SERIES C HMI
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KKLE 910BGFM03AKE SAFETY RELIEF VALVE (149722 - )
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MITSUBISHI A951GOT-SBD HMI
REXROTH MKD041B-144-GP0-KN PERMANENT MAGNET MOTOR (139677 - )
FANUC A16B-1000-0010/05E (133317 - )
ALLEN BRADLEY 1395-192709 SPARE PARTS KIT
TNA R-SX-918-0-00-0100 POWER SUPPLY
KEYENCE CORP CA-MN80 CONTROL PANEL
RELIANCE ELECTRIC MOTOR P56X4717M 1HP 1725RPM 208-230/460V 2.8-2.8/1.4A 60HZ
SEW DF14DT71D4 MOTOR 230YY/460YVOLTS 2.15/1.07AMPS 1/2HP 1700RPM (16662 - )
NIDEC CORP SKB3400075 DRIVE
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SIEMENS 6SN1145-1AA01-0AA2 SIMODRIVE 611 INFEED MODULE (132568 - )
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ALLEN-BRADLEY MPL-B330P-MK22AA SERVO MOTOR 5000RPM 1.7KW 460V 3PH 0-334HZ
CAPP R7259A1000 AMPLIFIER
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ASEA BROWN BOVERI FDH4A05TB-RN23 SERVO DRIVE
CUTLER-HAMER A1OFNO MOTOR STARTER (141057 - )
WEG 00318ET3E182T-W22 MOTOR
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