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
VIDEO JET CONTROL BOARD ASSY 356400 !
Dunusco Pressure Transducer 2290EA70P16BSMMACDZZ !
MCD Elektronik GmbH Backplane V1.2 #5423 6 HE Backplane Grunds
Sill Optics S6IRI1485 Camera Lens 189113
American Standard Heat Exchanger 5-160-02-008-002 !
Heidenhain Dainippon ROD 423.000B-1000 Encoder I.D # 298-089-03
WKM Valve Cage Seat Seat Cage 4.00 311636 1P13D
Preowned Arburg 657 SN 116764A Relay Board
Preowned SSI Seiko Instruments CJT60B TG6300
Yaskawa Motoman JANCD-MEW02-2 Rev C DF9201012-C0
YASKAWA ELECTRIC Janco PC Board JANCD-MRY01B-3
Moog Hydraulic HPN36199 XEB11499-001-21 DMEE40CU1MX7EB/K06;X10;C08
GE FANUC IC697PWR710K - Power Supply Module
Allen Bradley 2071-AP1 Kinetix 3 Component 1.1A V02 10
EUCHNER ZSB085126 !
Windsmith SE Encore Speed Reducer 02879346 Ratio 10.00 Input HP 4.10
/ SEALED NOTIFIER CPX-551 R4 IONIZATION SMOKE DETECTOR HEAD
KEYENCE CV-S200CU SMALL DIGITAL 2 MILLION PIXEL CONTROL
Néw Perkin Elmer Titan Exhaust CE Retrofit Kit With Plate N3134083
Mitsubishi Sewing Machine Wiper Assembly MB18E0982 !
Indramat PC Card Controller 109-0942-4A59-00 !
ITT Hoffman Specialty 2100 Main Valve 1/2”NPT Steam Regulator
Goulds ?? F559 Pump Casing Case Head ? 7-5/8" Diameter
Rhein-Nadal Automation RNA Typ: ESG 2000 UL Vibratory Feeder Control
Burns Engineering 12694-21 Electronic Thermostat Made
Voith 19016.92 001 Cavex Wo
Nordson 2302 Control Interface Panel Circuit Board 276881
ARO A213SD-120-A-G Solenoid Control Valves & [2] 116-218-33 120V
SMC MGPL50N-125 Compact Guided Cylinder 50mm Bore 125mm
Hoffman Electrical Enclosure Panel Enclosure Box Hinged Door Steel (Lot Of 4)
CKD CHB-X2-25-EL-S Air Operating Ball Valve DC24V ~
Moduteq D30-02 Device Controller Perimeter Intrusion Detection
Nopak-Matic Valves Model 412PP 1/2" 4-Way 115V 60Hz
GE CR309C00200XAAAAE Magnetic Starter Reverser Nema 1 3-3 Pole
CDG23/SPEC1AF0615G / CDG23SPEC1AF0615G PLC *+*
Gemu 968780Z -1 Pneumatic Actuator Valve ~
Thermo Scientific 057047T Assy Cpu/Rly Lan CD25A Tstd Z057047T
Leybold Dongle Bluetooth Dongle/Transmitter 6530572
Pyrex Corning 6402-2L Separatory Funnel Squibb Stpr PTFE Stpk
Keyence KV-XH04ML Motion Control Module ~
Lead Screws International NSK W2806W-4D-C2Z Ball Screw 30"
Swiss Fluid 125 F7/10 H22 Double Acting Pneumatic Valve Actuator 120PSI
Thread -Craft Ball Screw Assembly 2.00" Dia .200 RH One Start 26.000" OAL
Demag Controls & Components Type D04 OEL: 0,5 L Gearbox L-B8-0-25-0/23,2
Honeywell 924CE1-T25A Mini Limit Switch 250Vac 1/3Hp
Tecsis 99-2689-010N Torque Transducer 10Nm *+ PED*
Witt-Gasetechnik MFC-Modul Part 78711-060 24vdc
Chessell 390 Circular Chart Recorder Single Pen NEMA 4X ~
Parts Feeders 8” Vibratory Bowl Feeder 115V ~
Hytork XL0071U-S80-SCW-Y00 Actuator HYTORK-71 Asco 8262H
Bimba UB-3216-3XCM Pneumatic Rodless Linear Actuator
Damrow DKASO 101629 Stainless Steel Roller Bearing Housing 304SS +
Pratt MK2 Butterfly Valve 10" ANSI Class 150
ABB Fischer & Porter 10DX3111GDE15P1A2BA11321 Flow Tube Meter 4” 1056GPM
Stober K303VN0540MT20 Gearbox Ratio 53.9:1 Accel Torque 385 Nm
Rittal 5616913/001 Electrical Control Cabinet Enclosure 1250.009 +
Rosemount 214CRWSMB1D3E0077SLAT1C3 Sensor PT100 -196 To 600°C
PREOWNED - Emerson Hytork-680 Pneumatic Valve Actuator 120PSI EIA-0680-S80-A00
Beckhoff AX2003-AS S60301-520 Amplifier 2kVA
! Pratt WW MK2 Butterfly Valve 10" ANSI Class 150 PSIG 150
Tsubakimoto NEF700W 100JX100J Emer-Flex Coupling 100mm Bore ~
MTS Temposonics MK 292 With Phoenix Contact Block ~
* SURP* Fristam Stainless Steel Impeller 30mm Bore Part# ? 7 Vane
Baldor VNM3546 Motor 1HP 1745RPM 208-230/460V 56C Frame
Microscan IC-332 FIS-0001-0035G Voltage Converter Interface
Northstar NSRT0600LCSEN Bearingless Encoder NexGen RIM
Parker Schrader Bellows 520011115 Valve 743048115 120V
SNFA VEB50/NS 7CE3 Single Row Ball Bearing 50mm Bore 72mm OD
Humphrey 0624E1361205060 Valve 120V 50/60Hz
Datalogic DS50AF-100 SH999 High Resolution Bar Code Scanner
IMI NORGREN VM10DNFNB00082 DEVICE NET FIELDBUS ASSEMBLY +!
FAG HC7009C.T.P4S.UL Spindle Bearing 45mm Bore 75mm OD 16mm W
Balluff BOWA-1612-PU-C-S75 Sensor PNP 15-30Vdc
SMC MKB50-50RZ Right Hand Rotary Clamp Cylinder 1.0MPa
Fristam Pumps 1802600653 758 Single Seal Kit Ch. Ox/Carbon/Viton
Atlas Copco HS 202337 Rev A For 684 Dryer HS 202337 Rev A
Dodge Tigear-2 25:1 Gear Speed Reducer 26Q25R14 2.26 Hp Max In
Cognex 825-0004-1R E VisionView 700 Touch Screen Panel
Gems Sensors 1200BGB2502A3UA Pressure Transducer
Bimba PT-017045-A1B1GMR Pneu-Turn Rotary Actuator
Armstrong DS-1 Drain Separator 3/4"Npt 300Psig Steam & Air
Allen-Bradley 1771-PA /B Power Supply 120/220V 50/60Hz 1/.5A
SURPLUS- Thomas Rexnord 414481 CMA DBZ 226 TD Coupling ||
RITTAL WM 8017531 Wall Mounted Enclosure W/ Components
Gilson 4214 No. 7 USA Standard Test Sieve 2.80mm .011"
Yaskawa JPDC-P028 Power Board FT6330972-5 ETX001240
Control Techniques Module CAN 16-I/O P315 &
EMERSON 12-800462-00 PA431870-L SCR ISOL MODULE
*PARTS* Perkin Elmer 10863169 Conveyor; 1420; 10163170 ??? + !
BOX OF 2 THK LBGT20UU+340L Rotary Ball Spine Dual Seal 20x340mm +
Perkin Elmer DG0906815 ? Peri Pump Watson Marlow Janus
Perkin Elmer N9306637 Supra-Poly SPE Columns ATL 200MG/6ML 30u
Yuken T-DSG-01-3C39-D24-70245 Directional Solenoid Valve
Thomson AccuTrue Planetary Gearhead AT014-050-SO !
PARTS/REPAIR Waters 700001066 2690 Heater/Cooler Engine Perkin Elmer Z700001066
- Chesterton 190A Single Cartridge Rotary Spare Parts Kit 87M Shaft/Seal Size
PEPPERL+FUCHS 40FR1-3 MAGNETIC SENSOR 40FR1-3
Amot Controls 3B0CF112001 3” Port 3 Way Flanged Ductile Iron Control Valve
*-Open-Box* FURNAS Magnetic Contactor 42HB35AFD8148 3P 60Hz +
SURPLUS- GE Consolidated Valve 19096LCG-2-CC-MS-34-MT-FT-SS 1” Relief Valve
[qty 2] Micro Motion R050S239NCAAEZZZZ 1002784 Fittings Cajon VCO 4 #12 NPT
Eaton 15NCLPT-1E-A GP Current Limiting High Voltage Fuse 15.5KV
* SURP* Specken Drumag DSO-P 50/270-BN-P-4099786 Rotary Actuator
U.S. Motors P63CTB-2929 Model F106 3~Ph Motor 1Hp 230/460V
Keyence SL-M48H Corner Mirror Light Curtain Length 998mm
Eastman 31-26435 Brushless 5895 A
Gates 14MGT-1400-37 Poly Chain GT 2 Timing Belt
Eastman 31-26498 Brushless 5502 A || *
Keyence IV-HG300CA Vision Sensor Head Wide Field View
Oriental Motor 5IK90GU-STF Induction Motor 220V w/ 5GU18RH Gearhead
Shinano Denshi Sinaden SH-20MS1 Control Board 3Ph 210V
Burkert 00221850 Type 6281EV Solenoid Valve 24Vdc 8W G3/4
Ushio UXM-200H NO-RH0329 Deep UV Mercury Lamp
Hitachi PCRYN-01 PCB Board & !
Georg Fischer 163546847 Ball Valve 2" DN50 PVC-C EPDM
Georg Fischer 161546847 Ball Valve 2" DN50 PVC-U EPDM
* SURPLUS * Morse GFR25-F1 Cover & Bolts MADE
Roemheld Hilma Stark 1897649 Swing Clamp 500 Bar Y 10 R
Burkert 5282 A 40,0 FKM Solenoid Valve G1 1/2 24Vdc 8W 2/2-Way
Asahi Quarter Master A94M2WJ Actuator 115Vac & Type 23 3-Way Valve
*PARTS/REPAIR - UN* Mitsubishi FR-Z240-22K-UL Freqrol-Z200 AC Drive 30HP
Anderson Greenwood 961610MFA Relief Valve 3/4" X 1" 48.2Gpm +
Mewesta Hydraulik 97-112 22-70 Directional Control Valve 24Vdc
Perkin Elmer N5349004 PCB F/S Viper Motherboard
Stober P321APR0030KX301VF0010MFF !
Van Dorn PC330-029 Rev B Sequencer PCB Module 330029
PERKIN ELMER 7101659C LSA Sample Changer Interface Board ||⚡️
Millipore FC-260V Tylan 260 Series Mass Flow Controller
! Danfoss Variable Drive VLT 2040 !
Parker 02.50 BB2HLUS34M 6.299 Hydraulic Cylinder 3000Psi 2H
WATLOW 142A-3601-1300 50/60HZ Controller +
AMI - Elektronik ENCODER V23401-L1101-B101A Siemens