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。
Allen-Bradley RAM Memory Module 1772-ME16 16k Words
Chore-Time Contactor 24392-2 2-Contactor 208-240V Coil 25A 240V
Automated Environments, Inc. Power Loss Fail-Safe Monitor PMP-1
Allen-Bradley SLC 500 PLC Rack w/ Power Supply 1746-A10/1746-P2 10-Slot
Siemens PLC Rack 505-6516 16-Slot PS Proc. Slots
Fctional Devices Inc. RIB Power Supply PSH100A100A 24V 100VA
Timken Bearing 6535 *Has Shelfwear*
iversal Electric AC Motor AA2N081# 230V 0.115A
ITC Industrial Timer E15450 A2331A1 120V 60Hz 1/5RPH
Detas Line Filter TDC 35 520/300VAC 35A 50/60Hz
Rockwell Automation RFI Filter 2090-XXLF-X330B Ser. A 480V 3Ph 30A
Powerflo Clutch B-33936
Cooper Rod Hanger BH4-E-2-4 *Lot of 150* For 1/6" to 1/4" beam
Boshart Bronze Elbow ELB-100NL 1" Ins. x 1" Ins. No Lead * of 10*
Worthington Impeller UB4141A 8"
Crouse-Hinds Plug Receptacle Set 7710 M10 7/30A 460/230V 60Hz 3P 4W
Parker 4MA Series Air Cylinder 04.00 F4MA2US155 1.000 250PSI
Dongan Control Transformer 50-0150-053 0.150kVA Pri:240/480V Sec:120V 50/60Hz Ne
Telemecanique Cable Pull Switch XY2 CE1A150H7
Automated Environments Power Loss Fail-Safe Monitor PMP-1
V-Blox Surge Suppressor VB-3B 120/208V 3Ph 50/60Hz
Cutler-Hammer Control Transformer C0300C2A 0.300KVA Pri:240/480 Sec:120V 1Ph
GE AC Motor 5K35KN185 1/2HP 1800RPM FR: 48 230/460V 2.2/1.1A 3Ph 60Hz
Turck Sensor BI2-S12-AP7/S100 10-30 VDC 150 mA
Leeson Model C6C17FC97A AC Motor 114639.00 1/4HP 1800RPM 208-230V 5.2/2.6A
Yokogawa Frequency Meter 103372ANAN7 120V Range: 55-65Hz *Damaged Cover*
Cutler-Hammer dom Series DC Coil C335KD3W1 48V
Honeywelll Hour Meter 85098 12-60VDC
ATT AUA105B Transceiever it 5SPQABUAAA
AR North America Rotojet 400-10 Nozzle 35HX58 5800PSI Size ; 10
GE Motor Controls CR2943NB302G 600V
Simpson Hour Meter 3-702913 115V 60Hz
ATT AUA105 Transceiver it 5SPQAALAAD
Siemens Time Relay 3RP1525-1BQ30 Range: 0.05s-100h 100-127VAC 50/60Hz 24VAC/DC
ifm OPU203 Photoelectric Fork Sensor OPU-FPKG/AS Type 6 Enclosure
ATT AUA105 Transceiver it 5SPQAALAAB
McGraw-Edison B/W Controls Liquid Level Control 1100-L-L1-S7-OC Sec: 220V
Autotech Controls Smart Power Supply SP-F-60
IPTCI Stainless/Nickel Plate Pillow Block Bearing SUCNNP 205 16 1"
Senus Gas Regulator 043-B 30 PSI 3/8" Seat **
Allen-Bradley Trip Indicator 190-T11-11 Ser. A
Alfa Laval 17-98 Heat Exchanger 755461 *0*
Alfa Laval 25-428-05 Heat Exchanger 751680 *5*
Allen-Bradley Preset Speed Controller 160-BA01NPS1P1 .5 HP 380-460V
Stulz C6000 Expansion I/O Board M 14960
SMC CC Valve it CCVS 20-S 3-7 kgf/cm² 5-50°C
Modicon Analog Input Module AS-B875-102
Autotech Controls Smart Power Supply SP-F-60W
GE VersaMax Isolated Input Module IC200MDL632J 125VDC 16PT
Allen-Bradley RFI/AC Line Filters 2090-XXLF-TC350 50A 520V 3Ph
GE VersaMax Isolated Relay Output Module IC200MDL940K 16PT
Spirax Sarco Steam Trap NO 8 1/2" NPT
Wilkerson Filter/Regulaotr/Lubricator C08-02-FLG0
Aptech iversal Isolation Relay UIR-3 1.7VA 120/240/277V 10PPS
IKO Linear Bearing Guide LWHSG20 **
Eaton Circuit Breaker FAZ-D5 / 3-NA 5A 480Y/277V 3P
Gould Shawmut Amptrap Fuse A25X150 150A 250V * of 5*
Lincoln Centro-Matic Injector SL-1 **
Appleton Receptacle ADR6033 60A 600A 3W 3P
Allen-Bradley 2-Pole Power Pole 500LG-2PCK Ser.A
Dale Spring Nut 316SN12 1/2-13 316 Stainless Steel *Approx 100*
Pyle-National Plug KWPD-86036 60A 600V 3P
Liebert Static Transfer Switch Board 02-805965-00 Rev. 4 **
Russtoll Receptacle 7428-78 60A 600V
Russtoll Receptacle 7428-78 / JPA62 60A 600V
Cutler-Hammer Neutral Sensor 9253C03H09 Ratio 1600:1A 600V 10kV BIL
Misc. Brand Stainless Steel Piston Shaft 138-140-3011 Length: 11.5" **
BL R-Kit 70MH MT MED, BRKL407-MM,
Allen-Bradley Manual Motor Controller 140-CMN-4000 Range: 25-40A 600V
Allen-Bradley 1305 Dynamic Brake 1305-KBA03 Ser. A 750VDC 120W
Browning Spur Gear YSS8P40
Gates PowerGrip GT 2 Sprocket P46-8MGT-30
Vacon Frequency Converter VC-550-31 V. 5.0
Banner Light Curtain Emitter MGE1216A Min. Object Sens.: 1.5" **
dpmc Branch Circuit Current Monitoring CT Strip 101073825-001 Rev. 02A
A N Corp. High Vacuum Right Angle Valve AV150-QF-E-P 1.5"
AdTran Mx2800 Multiplexer 1200290L1
Deltran Clutch / Brake 326-12-012 Solenoid Operated
AEG Modicon Hot Standby Processor Module AS-9441-801 Model #: AS-S911-801
Crouse-Hinds Explosion Proof Receptacle CPS 152 211 20A 125-250V
Instrument Transformers Potential Transformer 469-480 Ratio 4:1 Pri: 480V
Cutler-Hammer Size 1 Reversing Contactor 7872A24G63 120V Coil 27A
Automated Environments / Omnus, Inc. VSC Interrupt Local A/B Split Control
Martin QD Flex Flange Assembly 06400007 Size: 7"
TCI KDR Drive Reactor KDRD24L 46.2A 3Ph 50/60Hz 600V
Matryx Pneumatic Actuator Model 200 120 PSI Max
RHCC CVT Transformer 0001-3955-03 Rev. D Input: 480VAC
Allen-Bradley 1305 AC Drive 1305-BA01A .5HP 380-460V
RWC Air Cylinder 884726107 250 PSI
Power C/I Surge Suppressor 277Y/480V 50/60Hz 3Ph 4W
Ross Sub-Base Assembly 364B91
Bimba Double-Wall Air Cylinder DW-504-2V 200 PSIG
Fag Bearing S3504.2RS C3
Seal Master Bearing LRCS-15 7013058 15/16"
IMI Norgren F47 Repair Kit 3203-05
Lithonia TW Replacement Glass TW GL RK1
Allen-Bradley Power Supply 1771-P2 75VA Ser. A 120/220V 50/60Hz 1/0.5A
Square D Control Transformer 9070K750 .750KVA Pri: 240/480 Sec: 120V
Rittal Compact Light SZ 4140.110 24VDC 8W
Cashco Pressure Reducing Regulator Valve Model D 40/80 PSIG
Falk J Series Tie Rod 706222 *Missing Nut*
Allen-Bradley SLC 500 Analog Input Module 1746-NI4 Series A
ASCO Red-Hat II Solenoid Valve 8223G21 10-750PSI
TDK Power Supply FAW15-6.6K
Load Controls Motor Minder PMP-25 Input: 120VAC 60Hz 3Ph Output: 4-20mA
Johnson Controls Lube Oil Control P145NCA--82 45 sec Delay 6.5PSI 120/240V
Cutler-Hammer Setup/Display Control 29JB97W00011
Allen-Bradley Starter 190E-DND2-DC25X Ser. B 120V Coil 30A 600V Trip:14.5-20A
Cutler-Hammer Dynamic Control Panel 15-000965-1119
Power,Mation Shaft Encoder 725N-Q-H7 1024 Cycles Per Rev. 5/28VDC
Ohmite Resistor PFE5K4R50 4.5 Ohms
Power/Mation Shaft Encoder 725N-Q-H7 1024 Cycles Per Rev. 5/28VDC
3M Aqua-Pure Water Filter AP101T
Asco Red Hat Solenoid Valve 8210G094 1/2"
Allen-Bradley PLC-5/25 Processor Module 1785-LT2 A F/W Rev F *No Key*
Allen-Bradley Photoswitch 42GRU-9200-QD Ser. B
Siemens OPM2 Clear Text Display Keypad 6SE32900XX878BF0 Iss. E
Siemens Sirius Starter 3RK1301-0BB10-0AA4 2.4-8A DS1E-XHF
Allen-Bradley Circuit Breaker 1489-M3C200 Ser. D 20A 3P
EIL Power Factor Transducer PFL-030Y Ratings: -.5 to .5 PF 5A 120V 3Ph 4W
PowerTOP Xtra Plug ME460P9W 60A 250V 4W 50-60Hz
Plug ME460P9W 60A 250V 4W
Scame Plug SCM460P9W 60A 250V 3P 4W
Meltric DS60 Receptacle 37-64143 60A 600V Type 3R
Meltric DS60 Receptacle 37-64076 60A 125/250V Type 3R
Hubbell Receptacle w/ Plastic Base 330R6W 30A 250VAC 2P 3W
Hubbell Plug 430P9V04 30A 250V 3Ph
Schneider Electric Starter LC1D65A/GV3P 50 Trip : 37-50A 110-240V Coil
Hubbell Plug 360P6W 60A 250V 2P 3W Watertight
Russtoll Receptacle w/ Base 7428-78 60A 600V 3P 4W
Martin Sprocket P2814M40 - SK
Lambda Regulated Power Supply LM C15 Input: 105-132V 55-65Hz Output: 15VDC