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。
Eaton Starter w/ Manual Switch XTCE018C10 XTPR010BC1 XT0B010CC1 6.3-10A 120V
Raytek Thermalert GP Panel Meter RAYGPC 110/220V 1/10A 50/60Hz
Rockwell Wescom 7305-45 Data Channel Interface Module 91-730545 ISS. 1 w/ SCG
SMC Water Seperator AMG450C-N04C 1.0mPa Max
SCS Controller CM220-9TR 220V 50/60Hz 9A
Honeywell Data Access Arrangement S7002A 1007 Powered by W7010 W7020
Electro Industries Commication Converter CPU 1000-3E-M200-L200
GE Spectra Series Bonded Equipment Grod AEG10
Sierra Solid State Flowmeter 830M-2-OV1-D-V4-HP Range: 0-30 Output: 4-20mA
Cuttler-Hammer Current Transformer D60LA0 6-54A 600V D60LT4
Barber-Colman Temperature Controller AT-Plus
Intermatic Electronic Timer ET728C 7-Day 120V 60Hz
Marathon Electric 5VH56T17D2100E AC Motor G120 1HP 1725RPM FR:56
RWC Air Cylinder 891102101 250PSI
RWC Air Cylinder 8847-20-112 250PSI
Kooltronic AC Motor K55HXHLJ-2298 1/2HP 1600RPM 208/230V 5.3A 50/60Hz 1Ph
Reliance AC Motor P56X1302P-0M 1/2HP 1800RPM 230/460V 1.5/.75A Fr: FM56 Encl:TE
Magnetek Century AC Motor H256 0.5HP 1800RPM 200-230/460V 1.6-1.8/0.9A
Parker Series 2H Hydraulic Cylinder, 02.00 BB2HLTS14AC 11.000 3000PSI
Allen-Bradley Fusible Size 0 Combination 885229 Ser. K 480V Coil
RWC Air Cylinder 891005100 250 PSI
Eaton Contactor C25GNF390 Ser. F1 120V Coil 90A w/ Aux
Seal Master G Line Pillow Block Bearing MP-19 1 3/16"
Humphrey/Bimba Solenoid/Air Cylinder Assembly 062-4E1-36-70/D-1551-A 120V 125PSI
Trane Actuator X13610017040 180 in-lb 24V AC/DC Nema 2 *Missing Lug*
HTI Filter Element 800-026
Trane Actuator X13610017040 180 in-lb 24V AC/DC Nema 2 *No Key*
FPE Current Transformer 2763A0683 Ratio 3000:5A 10kv BIL 600V 50-400Hz
Square D Enclosed Starter 8536SB62V02BCP1SX11 Size 00 120V Coil Nema 1 Enclosure
Bimba Pneumatic Air Cylinder CYL-9469597 250 PSI Bore/Stroke: 2.5 x 8
ASCO Red Hat Solenoid Valve 80034/8211B80 120V Coil 10-300PSI 16.7W Pipe:1-1/4"
Great Lakes Instruments Model 672E Conductivity Analyzer 672E3F1C0N 115V 50/60Hz
Superior Electrical Interlock S1059001YPBL
Eaton Enclosed Starter ECX09C1CAA 480V Coil Trip: 6 - 10A
Ross Solenoid Valve W6577A4407 1-10 Bar
Ross Interposed Regulator 969N91
TCI KDR Drive Reactor KDRD25L 30.8A 3Ph 50/60Hz 600V
Crompton Power Factor Meter
Ryco Conductance Meter 855-10744303
Siemens Sirius Circuit Breaker 3RV1742-5JD10 50A 600V
Leeson C6T17NB3A AC Motor 110032-01 ½HP 1725/1425RPM FR:D56 ENCL:TENV
Link Belt Pillow Block Bearing P3Y239N 2 7/16"
EMP Fuse 12FC03 2.4/4.8KV 130A
ERDCO 2500 Series Flowmeter 3L-2504BR Fluid: AIR Pressure: 90 OP 200Max
SealMaster Take-Up Bearing ST 35 2 3/16"
Allen-Bradley SLC 500 Processor it 1747-L531 Ser D Proc Rev. 4
DanFoss Keypad w/ Cable 175Z7804 Type 12/3R SW Ver: 1.50
RWC, Air Cylinder, Part #: 889606103 250PSI
RWC Air Cylinder Part #: 8896-06103 250PSI
RWC, Air Cylinder, Part #: 890201103 250PSI
Spenax Flex-C-Ring Galvanized C Ring RING16G110
Dodge Tigear 2 Reducer 15Q15L56 Ratio 15:1 0.86HP In 392 In/Lb Torque Out
Mini Motor Gear Motor PA440M3T 180W 77.64RPM 220/380V 60Hz *Cracked Fan Cover*
API Flexible Conduit Size: 3" Length: 8"
Crouse-Hinds Plug CPH7714 7/30A 460/115-230V 3W 4P 3Ph
MGE ALBZ Control Board 6740413XD-2CA
Westinghouse Coil 2050A14G15 Size 5 440/480V 60HZ
Allen-Bradley Arcing Grod Fault Sensor 1409-N1 600V
Liebert Controller Board G12-3710 Rev. E
Allen-Bradley MPS8/89 Control Board 126037 Rev. 01
Johnson Controls Metasys IOM4711 Expansion Module MS-IOM4711-0 Rev. T
Ohio Semitronics Transducer 3AVT-600C Input 0-600VAC 5/60Hz 3ea
Allen-Bradley Analog Output Module 1794-OE4 Ser. B
Allen-Bradley Analog Output Module 1794-OE4
Allen-Bradley Analog Output Module 1794-OE4 *Cracked*
Dodge Take Up Bearing it WSTU-SCEZ-104S-PSS 1¼"
Gould Shawmut Amp-Trap Fuse A6KA
Agastat Timer 2422AF Range .5-10min 120V coil 60Hz
Ohio Semitronics, Current Transformer, 12511, ratio 300:5A,
Evergreen Lift Supports E10036
Danfoss Coated Relay Option 175Z3663
Thomas Betts Brass Carpet Plate P 64 CP * of 5*
RWC Air Cylinder 884722106 250PSI
Dayton AC Motor 2R972 1/3HP 3600RPM 208-230/460V 1.4-1.3/0.66A 3Ph 60Hz
GE Motor H158 1/6HP 115V 1200RPM 4A 1Ph 60Hz
RWC Air Cylinder 8902-01-103 250PSI
Leeson C6T17NB3B AC Motor 110032-00 ½HP 1725/1425RPM FR:D56 ENCL:TENV
MKS Baratron Pressure Transducer 224HA-01000A3-SP058 Input: 15VDC
Browning Sheave 2AK84X1
Matheson Gas Regulator 9320 3000 PSI
Crompton Integra 1540 Digital Meter INT-1543-120-5-L-M Aux: 12-48VDC
BEHA Gas Lamp Tester 8888
Cash Acme Valve FRM2 150 PSI Max 1/2"
Allen-Bradley Power Supply 1768-PB3 Ser. A
Dynapar Encoder HS35R2400D30H04 2400PPR
Browning Split Taper Sprocket H140R16 16 Teeth
Master Control Systems Control Panel Assembly 5625 ISS
Innovative Technology The IT Protector P-Plus Surge Suppressor P-1S 120AC 120V
AEG Modicon Isolated Output Module AS-B810-008 115VAC
Martin QD Timing Pulley 26H150 SD
Bimba Pneumatic Air Cylinder CYL-10081181 250PSI Bore/Stroke: 2.5 x 4 **
Allen-Bradley SMC-2 Smart Motor Controller 150-A09NB / 193-BSB80 5HP 460V 5.5-8A
Allen-Bradley SMC-2 Smart Motor Controller 150-A09NB / 193-BSB 80 5HP 460V
Westinghouse Starter 11200-S0 Size 0 110V Coil
Square D Voltage Transformer 460R-480 Ratio 480:120
Bussmann Fuse 170M7083 2500A 690V
Kkle Relief Valve 6010GFM01-LM Size: 1-1/4 Set: 40PSIG Capacity: 1470 lb/Hr
Apollo Stainless Steel Ball Valve Size: 2" 1500 WOG
Boshart Bronze Hydrant Elbow HL-075-100NL 3/4" MPT x 1" Ins. No Lead * of 10*
Dynapar Encoder HS35R1024H30H04
Emerson Relay Contact PDM 5605045 Rev. 06 Style #: 5X00266H01
Bussmann Pull Out Fuse Her 200M09CB 200A 600V 1P
Airpax Speed Switch TACH-PAK 1
Rockwell Wescom Power Supply 8548-00 95W
Rus Receptacle JRSR1034H 100A 600V 3P 4W
Robertshaw itrol 7000 DERHC Gas Valve 5N7-501-531 24VAC 0.2A 60Hz 1/2PSI
Cutler-Hammer Contactor C832JN6 120V Coil
Sylvania/Clark Reversing Starter T30U031 Size 1 10 HP 120V Coils
AAF DriPak 2000 Pocket Filter 709-110-150 24x24x15" 13/16" Header 10 Pockets
Morris Coupling Co. Mallable Clamp FS-5718-1/2 E/G 2 1/2" Wide 1/2" Hole
Acopian Regulated Power Supply A24H1500 *Dented Top*
Allen-Bradley Size 3 Starter 500-D0D930 90A 600V 115-120V Coil
TCI dV/dTGaurd KLC Output Filter KLC25B 600V 25A
Versatex Capacitor Assembly ABS/43M/10/RF3 10 kVAR 480V 3Ph 60Hz
Trenco Control Transformer TR-7123 350VA Pri: 230/460V Sec: 115V
Holophane Ballast RBK400HP48B 400W 480V
NERIMOTORI Motor T63C4 280/480V 60Hz 0.4HP 0.3kW 1800 RPM 1.4/0.8A
GE Lumination Recessed LED Luminaire RPL22A03XMM840VQRMWHTE 605MM x 605mm 120-27
Dynapar Encoder 220512110zvf23
Square D PowerLogic Power Meter 3020 PM-650
Westinghouse Magnetic Coil 2050A14G15 440/480V 60Hz
Square D PCMCIA Modbus Plus Adapter VW3A66305 SFW Rev. 75
Electronics Corporation Wide Angle Proximity Control 42SRP-6013 Dark Operate
Comtel Control Panel 71-501233-01
GFG Controller GMA 41B 24V 5W
Tri-Tronics Sensors APSDLR **
ITE Type GRM-NC Grod Shield Grod Relay 202E0413 250VAC 50VDC
PepperLFuchs Transmitter Power Supply 39370 KSD2-CI-2 K-System
Allen-Bradley SLC 500 Processor it 1747-L542 Ser. B Proc. Rev.3
Allen-Bradley Analog Output 1794-OE4
Cornell Dubilier Capacitor IMS1010F33L 10kVAR 480V 3Ph 60Hz
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