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
Bettis Actuator Model: DS0065.B2A04K.14K0
Phoenix Contact IB STME 24 DO16/3
Atlas Copco Tensor Cable 4220 1616 10
Duraseal Model: KESR2000333 316 SS Stellite Face Seal Ring
Parker 400 50-CCBMPRLR14MC
General Electric MCC Bucket Size 1 7700 Line No door Type: FVNR 10 Max HP
Vaisala Humidity and Temperature Transmitter HMP233 D2C0A2AA32A2A3B
Indramat GLD-18
LMI Milton Boy LE-352SI Liquid Handling ASM
Cooper Crouse Hinds 970SA *LOT OF 5*
Martin Model: 120E23 Roller Chain Sprocket
Waters M486 Turntable Absorbance Detector
Cutler-Hammer DH262FDK Type 12(3R) 600 Volt 60 Amp
United Electric Controls E121-2BSB Temperature Switch, 480V, 15A, 30-250F Range
Westinghouse Non-Fusible Safety Switch WHU362, 600V, 60A, 50hp, Stainless Encl
Phoenix Contact Interbus Module IBS IP 24 V.24
Micron Industries Dry Type Distribution Transformer 1 KVA; 240x480-120-280v
Seal Master Pillow Block Ball Bearing, MP-24, 1-1/2" Bore
EBM Pabst R2E220-AA40-B5 CENTRIFUGAL FAN 230 VAC 50/60 HZ 4 WIRE LEADED BLOWER
Kunkle 916BDCB02NE ½” Valve
DeZurik 2.5” CI/316SS Rotary Actuated Butterfly Valve 175 CWP Model: 9186550
DeZurik 2.5” Actuated DI/S2 Butterfly Valve 175 CWP Model: 2100164
DeZurik CI/316SS 2.5” Actuated Butterfly Valve Model: 9186550
John Crane Model: PP046-JDR 43989 9BTS 564764 Seal
11S138 TB Wood's SURE-FLEX Type S Flange 11S x 1-3/8
Parker 1PLP00001668 Pneumatic Cylinder
QMARK 5018-0004-100 3P 24V-AC 20HP 35A AMP Relay
Moore Valve Positioner 72G315, 0-30 / 0-60 PSI Range
Baldor Reliance 6P56H3882 Motor 1HP 1725RPM
GE Fanuc IC610CPU105C Computer Ram Module
Hotstart 167621 240 volt Heater Engine for Generator
General Electric TH3364 600V 200A Heavy Duty Safety Switch
Numatics ZZAL-05A2D-0604 Pneumatic Cylinder
Fafnir 308KS Single Row Ball Bearing
Leviton 2380 Single Lock Receptacle
Parker No-Skive ID: ¼” (6.3mm) Hose (Black) 1 ft. Model: 301-4
TRD / BIMBA 3 1/4" Bore X 10" Stroke Pneumatic Cylinder
Allen-Bradley 1756-PA75 SER B Power Supply, ControlLogix, 240V
5 product ratings- Allen-Bradley 1756-PA75 SER B Power Supply, ControlLogix, 240V
Square D Control Station Enclosure 3mm K+SK+KX Model: 9001KYAF9 Series A
Acid Eater Quik Response Acid Spill Kit
SALTEK SLP-2765 V/4 four-pole varistor surge
Crouse Hinds AR342 Arktit AR 30a Receptacle w/ ARE 23 Back Box Housing
Salisbury Glove Inflator G99
Hubbell Remote Thermostat Kit for 30 Amp Circuit
Seal Master Pillow Block NP-32RT 2”
Square D QOC16US QO Series, Main Breaker load center, 1-ph 100/125/A, 120/240V
Allen Bradley 96221875 1794-0B16/A Output Module
T.B. Woods 5VS-265-4 Adjustable Sheave
Moore Industries DSX/4-20MA/69-656/1.0VLP 2LGP Digital Indicator
Efector IFM IYB30,8-BPKG/V2A/6M-IY5038 Inductive SENSOR 10-36 VDC
Lincoln PL-2000 Bearing Saver Lubricating Pump Kit 85600 120 VAC 25 VA (HR)
Krones 2-018-76-928-1 Drive Roller
BANNER, Remote Sensor Receiver, SP12SRLQD
Parker 560 63-CTMPRLRS14MC
APPLETON 1212 1.5"X18" PTC STEEL PULL BOXES
US Motors 7.5HP; 1180RPM; 460V; Frame: 256U F08-R727-M
Allen-Bradley 800T-16JW2KC1AX Illuminated Selector Switch 120V
MAC 55B-12-PI-501JJ Solenoid Valve
Leeson .5 Hp; 1140 RPM; D56C Frame Electric Motor
Norgren SXE9573-Z70-70C Pneumatic Valve
Turck BC20-K40SR-FZ3X2 Turck Embeddable Sensor
General Electric CR9500B100A2A Solenoid Industrial Strongbox
Power-One DC-DC Converter AS 1301-7R
Peek 3000 Traffic Controller
APPLETON T400-M CONDUIT BODY
Allen Bradley 1305-BA09A Variable Speed Drive
Baldor Motor AN3687-4 HP:1 1/2 RPM: 1140 Frame:184 Volts: 460 SF: 1
1 Lot of 25 Duro Buna AS568-337S O-Ring
Nibco 595-4-66 600 WOG
Howard HFL-400-PS-4T-A Horizontal Flood Light
Reliance electric Motor Model: C56H1810H HP: 1 RPM: 1725 Frame:FC56C
Red Lion PRA1-3011 Relay Module
ITE 100 Amp Circuit Breaker
Bently Nevada 330180-51-00 PROXIMITY SENSOR
Allen Bradley 42EF-D2JBAK-A2 Right Sight Photosensor, 18mm Cylindrical
Viking Relief Valve Assembly For H type VLVP-3-795-202-000-07
8” Butterfly Valve
Continental Disc Corp 8" Ultrx 100 PSIG 67 F
DeZurik 2.5” Actuated Butterfly Valve Model: 9376475 w/Morin Actuator S-006U-D00
DeZurik 2.5” Rotary Actuated DI/S2 Butterfly Valve Model: 9259945
Allen-Bradley DC Input Module 1756-IB32 Ser B
2 product ratings- Allen-Bradley DC Input Module 1756-IB32 Ser B
Fischer Controls 051553-1-1, 67CFR-362 Regulator
Reliance Electric P14G9243G Duty Master A-C Motor 1 HP 1725RPM 230/460V
Autoclave Engineering 10SM AND 20SM SERIES MEDIUM PRESSURE NEEDLe VALVES
Henry 5244-1 series Relief Valve
Schrader Bellows Cylinder 250 PSI PAC108422 9.000 PA-2 Series
Allenair AV-1 ½ x 18 OS Pneumatic Cylinder
Eaton Q6U-4X9-B-1.00-2-L-L-L-1-1 Cylinder
NUMATICS XC-756639-1 CYLINDER NSNP
Parker 1CE43-35-20
Parker 1CF43-35-20
BROWNING ROLLER CHAIN SPROCKET 40TB30
Martin 60BS40 1 ½ No. 60 - 3/4" Pitch - Single - Bored To Size Sprocket
Ross 3 Way Pneumatic valve Model: W1614B2020
ACDC Electronics JF5N150P-173 Switchable Power Supply, 5V, 150A
Eaton FD2100 2 Pole Circuit Breaker, 100 Amps
Square D QOC412L125 Ser G1 Breaker Panel 240V 140A Type 1 Encl 2 Spaces
Foxboro 3A2-D3I D/MA Converter Module Board
Allen-Bradley Photoswitch Sensor Control Module 22DJ4-4000 Ser B
Cleveland Vibrator VB-40 Vibra-Ball Pneumatic Vibrator
Crouse Hinds RE61SA Conduit Hub Reducer *LOT OF 9*
Western Industrial relay Board/ Thickness Gauge Encoder Model: 871392
Tyler Union 8 x 12 6 Bolt Long Solid Sleeve 350 DI C-153
Rosemount pressure transmitter 3-15 PSI, 4-20MADC W/Fisher Controls 67CEP-224
Westinghouse 151D933G02 230 AMP Fuse
ITE HFCP Double Barrel Fuse D15AB150, 150A, 600V
Glas-Col 402 180w, 115v Standard Heating Mantle
Martin 80SF24 Sprocket
Eaton Cutler Hammer 8170A-6501
Cooper B-Line B2012PAAL Pipe Clamp (LOT OF 50)
MARTIN 3C95E HI-CAP QD SHEAVE
Holophane PTA175MH27EM Low Bay Light
Autoclave Engineers 20SC-9071 Valve
Miller 2.50 T4MA2UMS34AC 2.000 Cylinder
Pepperl + Fuchs 23294 NJ 1,5-8GM
Toledo Scale Corp A13592800A 8510 INTERFACE
American Air Filter Pulse Timer, T1320B10
Chatillon DFI10 Digital Force Gauge
MAC, Solenoid Valve Base, 916B-PM-611JB
8 AWG Studded Split Bolts 3/8” Split Bolts *LOT OF 50*
ARO 2415-1009-120 Pneumatic Cylinder
KROHNE, PVC Data Cable 5316299800
Ashley Red Sling 30 FT ARS150 Vertical 13200, Chokehold 10560, Basket 26401
Phoenix Contact Interbus IBS IP DL 2
Endress Hauser Soliphant M Level Switch FTM50-DGK2K4AH7AA
Asco Gas Shut Off Valve, K3A652U
Square D Safety Switch HU364 200 Amp 600V 3 Phase
Atlas Copco Tensor Cable 4220 3606 10
Ashley Yellow Sling 30 FT AR590 Vertical 8400 Chokehold 6720 Basket 16800
Isliker Magnete UGNZ-50.10-100S-90 I & Various Linear Solenoid Coil