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
GIDDINGS LEWIS 502-03994-00R0 PLC MODULE
ALLEN-BRADLEY OPERATOR PANEL 6185-BACAAAZ SER.A M/N6185-B REV.C 100-240V
SCHNEIDER ELECTRIC TSX-RKN-8 PLC RACK (130818 - )
BR 8DI440.DB0220000-1 SERVO MOTOR
PROTECTIVE ENCLOSURES COMPANY DS4450H ENCLOSURE
FALK 1238WB0M1A WORM REDUCER (157093 - )
REXROTH MSK070E-0450-NN-S1-UP0-NNNN MOTOR
GENERAL ELECTRIC SVI2-21113111 VALVE
FANUC IC697MDL350C PLC MODULE
DIALIGHT HEGMC4PNSNG LIGHT FIXTURE
ALLEN BRADLEY 20AD011A0AYNANC0 DRIVE
ALLEN BRADLEY 1746-PA SERIES A POWER SUPPLY
BIHLWIEDEMANN BWU3825 ETHERNET SWITCH
ALLEN BRADLEY 20AD3P4A3AYNANNN DRIVE
ALLEN-BRADLEY 1336-C003-EAD-FA2 AC DRIVE (136252 - )
KRONES 2-098-85-101-0 HMI
ALLEN BRADLEY 20G11FD022AA0NNNNN DRIVE
ALLEN BRADLEY MPAR-B3300E-M4B SERIES A PNEUMATIC CYLINDER
TELEMECANIQUE MSP62D151M SERVO DRIVE (138675 - )
CONTINENTAL HYDRAULICS PVR15-15B15-RF-O-518B6OL-D PUMP
BALDOR DODGE SS26Q60H56 STAINLESS STEEL TIGEAR REDUCER (148612 - )
FANUC A06B-6097-H203 SERVO DRIVE
ASEA BROWN BOVERI AF460W-30-70 CONTACTOR
OMRON FZ35010 PROCESS CONTROLLER
JOHNSON CONTROLS MS-NAE5520-0 PROCESS CONTROLLER
OKUMA BL-MC200E-12SB MOTOR
SCHNEIDER ELECTRIC PFXGP4501TADW HMI
KROHNE NL-3313 LC FLOW METER (133560 - )
ALLEN BRADLEY 1783-MS10T SERIES A ETHERNET SWITCH
INDRAMAT CLM 01.2-X SERVO DRIVE
OMRON R88D-WT60HF SERVO DRIVE
RELIANCE ELECTRIC H-4050-P-H00AA 6144-01-802 SERVO MOTOR (136428 - )
ASCO ADLBN9G9G3A0000 VALVE
SM-BEISTER CYCLO VARIATOR TMCY-HC3115 RATIO: 29, IN 1HP, 1750RPM, TORQUE: 4490
FUJI HT NAUTILUS 40L (67422 - )
GARDNER DENVER G-BH1 2BH1490-7AH16 REGENERATIVE BLOWER (155179 - )
YASKAWA ELECTRIC CACR-SR15SZ1SSY232 SERVO DRIVE
ENDRESS HAUSER 8A1B02-13L9/0 FLOW METER
HONEYWELL 30735869-001 W/C-CD000 11 SLOT PLC RACK BASIC CONTROLLER FILE (128584
AVERY WEIGH-TRONIX ZQ375-SD1 W/ BSF-99-5LB/3KG DIGITAL SCALE INDICATOR (132196
EATON CORPORATION KRP-C-1100SP FUSE
ASEA BROWN BOVERI CM3610T MOTOR
ALLEN BRADLEY 22B-B024N104 SERIES A DRIVE
TELEMECANIQUE TSXP673 PROCESSOR (139528 - )
ENDRESS HAUSER FMU860-R1E1B8 PROSONIC CONTROL (126111 - )
COGNEX DMR-300X-00 SENSOR
HIRSCHMANN OS20-001200T5T5T5-TBBY999GMSE3S ETHERNET SWITCH
KEYENCE CORP CA-DQP12X LIGHT FIXTURE
YASKAWA ELECTRIC SGMSV-40D3A61 SERVO MOTOR
FANUC A06B-0123-B175 AC SERVO MOTOR (141479 - )
GE FANUC A06B-0143-B175#7008 SERVO MOTOR
ODRIVE CMP71M/BP/KY/AK0H/SB1 SERVO MOTOR
ALLEN BRADLEY 1747-L551 SERIES B PLC MODULE
ALLEN BRADLEY 1747-L551 SERIES B PLC MODULE
EATON CORPORATION A200M2CACD MOTOR STARTER
ALLEN BRADLEY 1336S-B025-AN-EN4 SERIES D DRIVE
SCHNEIDER ELECTRIC PFXPPD5700TA DISPLAY
ALLEN BRADLEY 22D-D1P4N104 SERIES A DRIVE
1 ALLEN BRADLEY 22D-D1P4N104 SERIES A DRIVE
ODRIVE MCV41A0075-5A3-4-00 DRIVE
PHOENIX CONTACT IBS IP 500 PS-2-BS INTERBUS POWER SUPPLY 24VDC NO SWITCH COVER
SIEMENS 3VL4140-2GE30-0AA0 CIRCUIT BREAKER
INDRAMAT MAC090B-0-PD-4-C/110-A-1/WI518LV/S001 SERVO MOTOR
SEW-EURODRIVE KT47DRS71M4/LN GEARMOTOR (155255 - )
FANUC A06B-6127-H208 SERVO DRIVE
SIEMENS S5 PG675 PROGRAMMING TERMINAL 6ES5675-OUB11 (F0301 - )
NVENT WS12SS ENCLOSURE
ALLEN BRADLEY 6181F-15TPW7 SERIES E DISPLAY
ALLEN BRADLEY 20AB015A3AYNANC0 SERIES A DRIVE
EATON CORPORATION 10316H320 SWITCH
EUROTHERM TC2001 DRIVE
ListingFANUC A06B-0272-B000 SERVO MOTOR
SUMITOMO RNYM03-1430YA-80 MOTOR
MERSEN A051B1DAR0-19R FUSE
VESWDM3554 MOTOR (127565 - )
NIDEC WC1503 MOTOR (134337 - )
COGNEX DMR-8600-0200 BARCODE SCANNER
ALLEN BRADLEY 20BD011A0AYNANA0 SERIES A DRIVE
FANUC A20B-2003-0132 CIRCUIT BOARD
YASKAWA ELECTRIC CIMR-G3U4011 DRIVE
ASEA BROWN BOVERI 3GAA102560-ASK MOTOR
ALLEN BRADLEY 1398-PDM-030 SERIES A SERVO DRIVE
1 ALLEN BRADLEY 1398-PDM-030 SERIES A SERVO DRIVE
ALLEN BRADLEY 1784-KTCX15 SERIES A PLC MODULE
ALLEN-BRADLEY 1336S-BRF100-AE-DE4 SER D *NO FACEPLATE* FREQUENCY AC DRIVE
MOTOR 1.5HP, 3PH (19511 -
PENTAIR S371-SE-E-25-B-XX-XX-AS VALVE
OMRON FH-1050 SENSOR
GENERAL ELECTRIC F650BABF2G0LOSHE RELAY
ALLEN BRADLEY 2711P-B12C4D1 HMI
WITTENSTEIN ALPHA GEAR 140S-MC2-20-1K1-2K-PS1 (73184 - )
FAG 23134-E1-XL-K-TVPB-C3 SPHERICAL ROLLER BEARINGS (133191 - )
ALLEN BRADLEY 6181-AHBCBBZZZ SERIES A HMI
ALLEN BRADLEY 25B-D013N104 SERIES A DRIVE
FOMOTECH ALPHA560A OPERATING MECHANISM
UV TECHNIQUE KEVG 7500 BALLAST
BERGES ACI/R 5.5KW DRIVE
ALLEN BRADLEY 6181P-17TP2KHX HMI
MTS AUTOMATION MPM1142FRMM-BP SERVO MOTOR (140730 - )
PHOENIX CONTACT IBS IP ODP 2 OPERATOR DISPLAY PANEL (137862 - )
KRONES VCHF50-20-G-X15 FILTER
PROMESS 1906901490 PROCESS CONTROLLER
SCHNEIDER ELECTRIC ATV58HD12M2Z DRIVE
ALLEN BRADLEY MPL-B430P-MJ24AA SERIES A SERVO MOTOR
NSK 100BTR10STYNDBLP4A BEARING
ASEA BROWN BOVERI 4LA41100102V1.3 DISPLAY
SIEMENS 6ES5700-1LA12 RACK FOR EXPANSION IT (134256 - )
MARKEM IMAJE 10014420 PC BOARD (129189 - )
ABB ACS250-03U-18A0-4B063 AC DRIVE (153261 - )
COGNEX CKR-101-00 SENSOR
ALLEN BRADLEY 1784-KTCX15 SERIES B PLC MODULE
ALLEN BRADLEY 1783-NATR SERIES A PLC MODULE
ALLEN BRADLEY 1794-ASB SERIES E PLC MODULE
ALLEN BRADLEY 1794-ASB SERIES E PLC MODULE
ALLEN BRADLEY 1746-NO4V SERIES A PLC MODULE
ALLEN BRADLEY 1794-ASB SERIES D PLC MODULE
ALLEN BRADLEY 1794-ASB SERIES D PLC MODULE
BALDOR RELIANCE 1326AB-B420E-21 MOTOR
TRI-CLOVER 761TR-30M-20S-2 1/2-316L-PM CONTROL VALVE ASSEMBLY (54381 - )
DANFOSS 175Z4100 CONVERTER DRIVE (63125 - )
ALLEN-BRADLEY 20AD8P0A3AYNANC0 POWERFLEX AC DRIVE (153012 - )
EATON VMVM100/MT BALLAST BODY ASSEMBLY (130003 - )
ALLEN BRADLEY 150-C43NBR SERIES B MOTOR STARTER
FANUC A06B-0502-B006 SERVO MOTOR
PHOENIX CONTACT IBS-IP-ODP2 OPERATOR DISPLAY PANEL (137876 - )
ODRIVE K37 AQH100/4 GEAR
ALLEN BRADLEY 1336-B010-EAD-S1 SERIES A DRIVE
KEB AUTOMATION 18F5K1G-345F DRIVE
BALDOR DODGE 30S10HBD111 REDUCER (158586 - )
FANUC ?6/3000 A06B-0128-B077 AC SERVO MOTOR (72609 - )
BROWNING X10-E432-N MOTOR
FANUC IC670GBI002 PLC MODULE