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
FANUC A06B-6076-H101 SERVO DRIVE
ALLEN BRADLEY 635533-9002 CIRCUIT BOARD
KEPCO CPS 6-45 POWER SUPPLY 115/230V 50-65HZ 9/5A MAX (66202 - )
ITORQ M237 DA 90 PNEUMATIC ACTUATOR VALVE (135387 - )
ASEA BROWN BOVERI NSB202-501 SERVO DRIVE
BALDOR IDWNM3546T INVERTER DRIVE MOTOR 3-PHASE 1HP 1750-6000RPM 230/460V 60HZ
BODINE ELECTRIC 48R6BFCI-F2 GEARMOTOR (134935 - )
ITEK EQUIPMENT PM7/208-1-239-01-02 AC WELDING CONTROL (156182 - )
MICROMERITICS 760 HPLC PUMP CONTROL MODULE WITH CABLES (73545 - )
ALLEN BRADLEY 2706-B41J31X SERIES F DISPLAY
SCHWEITZER ENGINEERING SEL-321-321114256HGC3X4 RELAY
GENERAL ELECTRIC 5KS42HN4056A MOTOR
IEF WERNER 1000055 PROCESS CONTROLLER
ODRIVE SA47DRN71M4 GEAR
SQUARE D HU661RWK HEAVY DUTY SAFETY SWITCH (150474 - )
EMERSON SOLA 63231254 POWER CONDITIONER PANEL MOT (134213 - )
BALDOR DODGE P4B-E-215R TYPE E PILLOW BLOCK ROLLER BEARING IT (133437 - )
BERGER LAHR IFA62/2DP0ISDS/5DCBI54/2-040KPP54 SERVO MOTOR 36VDC 6A (34917 - )
BRANDED B16 A/SA182 F304/304L STAINLESS STEEL FLANGE (RP103 - )
SIEMENS 6SE6440-2UD31-1CA1 MICROMASTER 440 AC DRIVE *NO COVER* (127453 - )
ALLEN BRADLEY MPL-B420P-MJ72AA SERIES A SERVO MOTOR
BELPA TR 165.75 TRANSFORMER
RELIANCE ELECTRIC P56X1520H MOTOR 1/4HP, 1725RPM, 230/460V, 3PH, FRAME FB56C
SIEMENS A5E00338527 HMI
1 SIEMENS A5E00338527 HMI
HONEYWELL 51304685-200 CIRCUIT BOARD
BALDOR RELIANCE M3554T MOTOR
IMI NORGREN NRGS24311CA W/V45A517D-C318A PRESSURE VALVE (129338 - )
ALLEN BRADLEY 1769-L32E SERIES B PLC PROCESSOR
FANUC A20B-2003-0262/01A CIRCUIT BOARD
MITSUBISHI QJ71LP21-25 PLC MODULE
ALLEN BRADLEY 1769-L32E SERIES A PLC PROCESSOR
INTRALOX 22TR S2600 CONVEYOR ROLLER
TIGEAR 202Q18R56 GEAR REDUCER (145449 - )
ALLEN BRADLEY 1321-3RA80-B LINE REACTOR
DAYTON 9K615C PUMP AND MOTOR 2.25HP, 3450/1725RPM, 230V (1038 - )
BIMA QCAE-V1 80B4 MOTOR 3.6A 3PH1400RPM W/SITI REDUCER 7.3:1 RATIO (21379 -
BAUMER ELECTRIC DK 20P11/099186 SENSOR
COGNEX IS5110-01 CAMERA
ALLEN BRADLEY 150-C30NBD SERIES B MOTOR STARTER
BIHLWIEDEMANN BWU2267 PLC PROCESSOR
NWL WC0902 CAPACITOR (154153 - )
BADGER METER 9002GCW36SV3A25P36 VALVE
EBARA EVMU/A 3 2 GC/N 10NLA2SF2 PUMP
ELECTRA-GEAR 21RHCC57 .5H/C SPEED REDUCER, RATIO: 7.5:1, FRAME: 7717153 (56
NEXEN 806600 FRICTION CLUTCH (131035 - )
EMERSON SOLA 63-23-125-4 MICRO COMPUTER REGULATOR CONSTANT VOLTAGE TRANSFORMER
TIGEAR 20Q10H56 REDUCER (158425 - )
PACIFIC SCIENTIFIC R46HCAA-R2-NS-VS-00 SERVO MOTOR (154145 - )
TIMKEN RASC2 15/16 BEARING
DODGE TIGEAR Q262B040M140K1 GEAR (154578 - )
ALLEN BRADLEY 1734-OB8S SERIES B PLC MODULE
QUAD TECH 88470-001 CONTROL PANEL
HOLOPHANE CORPORATION RBKC10HP48A BALLAST
ALLEN BRADLEY 1326AS-B460F-21 SERIES A SERVO MOTOR
ODRIVE SA47 DRN80M4/Z MOTOR ONLY MOTOR
PARKER SMBM654 SERVO MOTOR
NORDSON 8514977 PNEUMATIC ACCESSORY
SCHNEIDER ELECTRIC TSXETG100 ETHERNET SWITCH
TOTAL CONTROL PRODUCTS QPJ-ABR-201 PLC MODULE
SIEMENS 6ES7132-0BL01-0XB0 PLC MODULE
HONEYWELL 04973-X01-333-X7-00-000 SENSOR
KEYENCE CORP CA-DSR9 LIGHT FIXTURE
DYNAPAR FDCV00 PANEL METER
ODRIVE SA47/TDRE80M4/DH-18851 MOTOR
NORGREN D166LG43VVL2001 VALVE
ALLEN BRADLEY 2711-B6C15 SERIES B HMI
BALDOR WASHDOWN MOTOR/BLOWER CWDM3545 1HP 208-230/460V 3.4-3.2/1.6A 3450RPM
ASEA BROWN BOVERI SPNIS21 PLC MODULE
EATON CORPORATION NZM7-63N-NA CIRCUIT BREAKER
ALLEN-BRADLEY 1329R MOTOR 1HP 1725RPM 3PH 208-230/460VAC FC56C 50HZ (31783 -
INGERSOLL RAND 38332508 FILTER
SCHNEIDER ELECTRIC 140EHC0 PLC MODULE
ALLEN BRADLEY 1769-IQ32T SERIES A PLC MODULE
ALLEN BRADLEY 1772-LXP SERIES C PLC PROCESSOR
1 ALLEN BRADLEY 1772-LXP SERIES C PLC PROCESSOR
DIAMOND X-1172-010 RIVETED CONVEYOR CHAIN (63675 - )
DENSO RC3-V6A PROCESS CONTROLLER
ALLEN BRADLEY 20AD5P0A0AYNANC0 SERIES A DRIVE
ALLEN BRADLEY SP-192706 SPARE PARTS KIT
ALLEN BRADLEY 154958 CIRCUIT BOARD
SIEMENS 6AU1-410-0AB00-0AA0 PLC MODULE
ASEA BROWN BOVERI 58770-202BC CIRCUIT BOARD
LOCTITE 2139180 LIGHT FIXTURE
BALDOR MGR0013A034/M340 STF-258-40-A-B WORM GEAR REDUCER 40:1 RATIO 1.01HP
HAMMOND POWER SOLUTIONS C1F003LES DISTRIBUTION TRANSFORMER (144123 - )
SANYO DENKI 27BA100FFT30 AMPLIFIER
FANUC A06B-6066-H004-R SERVO DRIVE
HONEYWELL XF824-A PLC MODULE
HONEYWELL V5055A 1038 VALVE
ALPHA GEAR DRIVES LP90-M01-5-111-000 GEAR / SPEED REDUCER 5:1 (44182 - )
ALL FILL HD400 CIRCUIT BOARD
BOSCH DDS02.1-W025-D SERVO DRIVE
ASEA BROWN BOVERI 0-49001-5 POWER SUPPLY
REXROTH DKCXX.3-040-7 DRIVE
SPX 03AP137746 ROTARY GEAR SHAFT (48669 - )
ACME ELECTRIC TB2000F008C INDUSTRIAL CONTROL TRANSFORMER (140809 - )
ALLEN-BRADLEY 20AD011A0AYNANC0 AC DRIVE (128716 - )
SIEMENS 6AV6647-0AC11-3AX0 HMI
ALLEN BRADLEY 25B-D4P0N104 SERIES A DRIVE
1 ALLEN BRADLEY 25B-D4P0N104 SERIES A DRIVE
AVERY WEIGH-TRONIX 1080 PROCESS CONTROLLER
BINKS 6235-3206-3 PNEUMATIC ACCESSORY
EDDINGTON CS-050-C20 VALVE
ROCKWELL E29922 REV B CIRCUIT BOARD (137279 - )
LEUZE ELECTRONIC CML730I-T20-1270.R-M12 LIGHT CURTAIN TRANSMITTER (158478 -
TOSHIBA LF620FAA211E/GF63002AFFA1 ELECTROMAGNETIC FLOWMETER (144422 - )
FANUC A20B-0008-0540/01A PC BOARD (133319 - )
GALIL DMC-2220 DRIVE
SIEMENS 6AV6642-0BA01-1AX1 HMI
1 SIEMENS 6AV6642-0BA01-1AX1 HMI
SIEMENS 1FT6044-4AF71-4EG2-Z SERVO MOTOR
REGAL BELOIT GR 96 N BEARING
MILACRON 32KX9 PLC MODULE
ALLEN BRADLEY 2711-K5A2 HMI
SIEMENS 4AM5542-8DD40-0FA0 TRANSFORMER
BYSTRONIC E0774-5-B CIRCUIT BOARD
HONEYWELL DMX-I-4208 PRINTER
ASEA BROWN BOVERI BSM90B-2150AA SERVO MOTOR
SHOWA TDN18U CABLE
ODRIVE SAF37DT71D4 MOTOR
FANUC A02B-0166-B581 PLC MODULE
WESTINGHOUSE 2619D58G03 PLC RACK
ODRIVE KA37TDT7104-KS MOTOR
MITSUBISHI FL-A-750-PL1 DRIVE
SEW-EURODRIVE DFT80N4VS GEARMOTOR (157998 - )
BURKERT EASY FLUID CONTROL SYS 423921 VALVE
RELIANCE ELECTRIC MOTOR P56H3002G W/ DODGE TIGEAR REDUCER 208-230/460V 3PH
YEC UY-PFC9000 POWER SUPPLY (141132 - )
DANAHER MOTION SD902NN-001-01 DRIVE
SCHNEIDER ELECTRIC TELEMECANIQUE ATV-452U22M DRIVE
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