福建中立恒自动化设备有限公司
一、摘要 PLC是一种专门在工业环境下应用而设计的数字运算操作的电子装置。
它采用可以编制程序的存储器,用来在其内部存储执行逻辑运算、顺序运算、计时、计数和算术运算等操作的指令,并能通过数字式或模拟式的输入和输出,控制各种类型的机械或生产过程。PLC及其有关的外围设备都应按照易于与工业控制系统形成一个整体,易于扩展其功能的原则而设计。在工业生产的各个领域,机械加工企业为了提高生产效率,采用机械化流水作业的方式,对不同类型的零件分别组成的自动生产线。随着产品机型的更新换代,生产线承担的加工对象也随之改变,这就需要改变控制程序,使生产线的机械设备按新的工艺过程运行,而继电接触器控制器系统是采用固定接线,很难适应这个要求。大型自动生产线的控制系统使用的继电器数量很多,随着PLC的应用日益普及,其使用方法简单,便于掌握,且可靠性,抗干扰性很强,自身具有完善的功能.模块化的结构,使其在工业生产线上的应用越来越广泛。
发展趋势:1.向高速度、大容量方向发展
为了提高PLC的处理能力,要求PLC具有的响应速度和更大的存储容量。目前,有的PLC的扫描速度可达0.1ms/k步左右。PLC的扫描速度已成为很重要的一个性能指标。
在存储容量方面,有的PLC可达几十兆字节。为了扩大存储容量,有的公司已使用了磁泡存储器或硬盘。
2.向超大型、超小型两个方向发展
当前中小型PLC比较多,为了适应市场的多种需要,今后PLC要向多品种方向发展,特别是向超大型和超小型两个方向发展。现已有I/O点数达14336点的超大型PLC,其使用32位微处理器,多CPU并行工作和大容量存储器,功能强。
Simplex 4262-15 Duct Sensor Housing
Allen Bradley 808-J2 Speed Switch 15-80rpm 600v-ac
Foxboro E94-QXXS Temperature Transmitter 0-90c 30v-dc
Mn248 Stainless 5-vane Impeller 9-1/2in
Jamesbury 27150313600XTZ2A Qg2vp02ndm Pneumatic Stainless Control Valve 2in
Destaco DPW-500M-2 Wide Body Parallel Gripper
Schneider R1T185H483-004 Rtd 4-3/8in 1/4in
ited Conveyor Ucc 15249-E Valve Gate
Ri Mfg Co AIR-20-4.5 Dura-slide Pneumatic Actuator
Smc AR20K-01B Pneumatic Regulator 0.05-0.85mpa 1/8in Npt
Fairchild 950052 Pressure Regulator Valve 5-100psi 2500psi 1/4in Npt
Balluff BES 516-IV 2 Mechanical Signal Pulse Extender
Rosemot DP0002-3112-S6 Flushing Connection
Reliance 45C322 Power Supply Module
aflex 4BNKO I-1000 Rubber Expansion Joint 8in
Foxboro B0131MJ Pcb Circuit Board
Crouse Hinds AFUX0333-05 Conveyor Control Switch 600v-ac
Banner SI-MAG1SMCO Magnetic Safety Switch
Hirschmann MINI-OTDE-BFOC Fiberoptic Transceiver
Swagelok S-3200-2-32 Steel Pipe Elbow 2in Tube X 2in Npt
Smc NCDGBN40-0300 Double Acting Pneumatic Cylinder 40mm 3in 1mpa
Asco UFBX8320B13 Pneumatic Solenoid Valve 120v-ac 1/8in Npt 150psi
Weed Fiber-optics 6E01 7880-6538-498 Electrical Interface Module
Allen Bradley 802M-AMY12 Limit Switch 120-600v-ac
Of 5 Egs OZG C27 Iron Conduit Outlet Body 3/4in
Banner OSBFAC 27402 Omni-beam Omni-beam Fiber Optic Sensor Head
Moore DCA/1-5V/DX1X4/117AC Dc Current Alarm
Nitta OMTP04-003 Pneumatic Module
NA Mn292 1-1/2x3-10 Stainless 5-vane Impeller 8-1/2in Od
Foxboro B0132UH B0132UG-D Pcb Circuit Board
Ifm Efector IS5001 IS-3002-BPKG Proximity Switch
Smc MGQM50-25 Guided Slide Cylinder 50mm 25mm 1mpa
Ge Fanuc IC697CMM741 Ethernet Controller Module
Naegelen 073 Tufline Iron Flanged Piston Check Valve 1in 150
Industrial Mro 10479-01 Pcb Circuit Board
Continental Disc ULTRX SC16477A0002 4in Rupture Disc 69.2psi @ 547f
Abb SKT-2 57298791 Drive Terminal Board
Grace P-R2-B3RX Graceport Ethernet Port Interface Connector
Foxboro 761CSA-3A-3 Single Station Controller 120v-ac 45va
Skf FRB 12.5/140 Locating Ring 140mm
Goulds C01160A-1203 Stainless Shaft Sleeve Fits 3420 Lds 30x30-31
Ametek 150017X 1981 Pressure Gauge 4-1/2in 1/2in Npt -30in-hg-15psi
Pioneer CAT50-SM125-0150 Tool Her
Ametek 1981 150017 Pressure Gauge 4-1/2in 0-40000kpa 1/2in Npt
Cosa FJ19197 Zfk Detector it
Trw 3010-AMI Manual Steel Wafer Butterfly Valve 2-1/2in 175
Fireye 95DSS3-1 Insight Ii Integrated Flame Scanner 24v-dc
Starrett 91570-19-06 Band Saw Blade 234in X 3/4in
General Electric Ge 115D2220G1 Freq To Volt Conv Pcb Circuit Board
Georges Renault 8216-CVIC L-2 Nutrner Torque Controller 115/230/460v-ac
Swagelok SS-FM12TA12TA12-12 Stainless Braided Hose 3/4in 12in
Leeds Northrup 445101 Pcb Circuit Board Rev D
Festo CPV14-EPL-E Manif End Plate
Allen Bradley 160S-RFA-10-A Input Rfi Filter 10a Amp 250v-ac
Turck FDN20-4S-4XSG-E Devicenet Interlink Bt I/o Module
Schneider GV2RT053 Motor Circuit Breaker 0.63-1a Amp
Crompton 703DN00101248D Hour Meter
Hammond EL5BP Voltage Transformer 500va 347v-ac 120/240v-ac
Durant 3000-810-C Totalizer 24v-dc
Foxboro B0139CZ Pressure Sensor
Antes Controls 8103116407 Lpg-g Gas Pressure Switch 7-55in-wc 125/250v-ac
Rosemot 226-02-56 Conductivity Sensor
Nk Technologies AS1-NOU-FT Ac Current Switch 240v-ac/dc
Abb NKLS01-010 Infi 90 Cordset Cable 10ft
King Engineering 4525-19T Pneumatic Filter 150psi 1/2in Npt
Honeywell CP18LDPLC Photoelectric Sensor 10-30v-dc
Eagle Signal CR210A6 Relay 120v-ac
Ufm MX-PIF15GM-8P-.81C1.0-A2XR-ST-8D Variable Area Flow Meter 0-15gpm
Falk 0739779 1030t41 Cont Torque Assy W/o T41 Hub
Keyence GV-21 Laser Sensor 10-30v-dc
Rexnord 1268574 1090t20 Cover And Grid Assembly
Dodge 2A4.2B4.6 2 Groove V-belt Sheave
Agastat 2422AHT Time Delay Relay 1-30min 120v-ac
Aro R37111-600 Pneumatic Regulator 1/8in Npt 0-140psi
Sankyo VACWL46-10-SC38 Valcam 46 All In Aerial Cam it
Garlock 40408-2016 Carbae 108 Compression Packing 1/4in 5lb
Datalogic 109775202 Illumination Control Drive Pcb Circuit Board Rev 1
Gates 5V1700 Super Hc V-belt 170in 5/8in
Precision DRIL7000004 STC-11524 End Mill 1/2in X 8.5mm
Diamond Electronics 511486-1049 Camera Control it
Falk 5F 703544 Hub 1-3/8in
Sor 15RB-K2-N4-B1A Pressure Switch 2.5-8psi
Wandfluh ADRP6-S1802-D1 Hydraulic Directional Control Valve 350bar
Ina KRV22-PP-A Cam Follower 22mm
Smc MHZ2-25D2 Pneumatic Gripper 0.1-0.7mpa
Skf SNW 16X2.11/16 Adapter Sleeve Assembly
General Electric Ge CR205XK100C Auxiliary Contact Kit
Asco WPFT8262D22 Solenoid Valve Wog 120v-ac 1/4in Npt
Ris PCE-30 Watt Transducer 0-150v-ac 933.33w
Tb Woods 14MX-53S-68-3525 14MPC53S68 Timing Sprocket
Fuji Electric DCR4-45B Reactor 0.58mh
Watlow 695673E Band Heater 600w 460v-ac
Ashcroft B420V XCKFMFSNH06 Pressure Switch 60in-h2o 125/250v-ac
Shanley Pump PA040-4B Hydraulic Screw Pump
Hagan 378252 Amplifier Pcb Circuit Board Rev H
Parker 4530CHXXABBE53 Pneumatic Solenoid Valve 120v-ac 150psi
Lovejoy PM 460 010 THRU 050 Control Board
Iai RCP2-SA5C-I-42P-3-150-P1-P Robo Cylinder Linear Guide
001960 Flex Coupling Hardware Kit
Seahawk SD-RO1 Spot Detector
Watts F601-02WJ Pneumatic Filter 250psi 1/4in Npt
Beckwith M-0280 M-0270 Tapchanger Control Controller Module
Parker 14R111EB Pneumatic Regulator 250psi 1/4in Npt
Abb S501 K-20 Miniature Circuit Breaker 1p 20a Amp 277/480v-ac
Magnetrol X89-3203-001 Float And Stem Assembly
Raytron T3541P10 Pcb Circuit Board
General Electric Ge 2790E100H17 Relay 115/125v-dc
Smc CDBM2B20-250-HN Double Acting Pneumatic Cylinder 20mm 250mm 145psi
Tranex 14-5831 56000039 Voltage Transformer
Pilz PNOZX2.124VAC/DC2N/0 774306 Safety Relay 24v-dc
Square D 8501 DWZ Speed Control Relay 220v-ac
Smc SY5440-5LOU Pneumatic Solenoid Valve 24v-dc 0.2-0.7mpa
Robohand OISP-015 Proximity Switch 5-24v-dc
Rosemot 444-7-1 Amplifier Board
Clark-reliance 2200A4 Pneumatic Filter Element
Krebs 65-CR-2 Ceramic Separator Vortex Finder
Crompton 202-PVUU dervoltage Relay 120v-ac
Triconex 7400064-530 2705-3 Processor Module
Turck BC20-CP40-VP4X2 Combi Prox Proximity Sensor 10-65v-dc
Crane B3674XUW 800 Steel Socket Weld Check Valve 3/4in
Ilmadur 4261023500002 Gauge Glass 280mm X 24mm X 17mm
Nelson PLT120U3 Led Signal Light End Seal Kit 120v-ac
Parlec B30-16ER236 Collet Chuck
Bsb S-90 12in Rupture Disc 36.50psi @ 250f
Cutler Hammer E49S71 Limit Switch 300v-ac
1 Cutler Hammer E49S71 Limit Switch 300v-ac
Chint NB1-D63-3P Miniature Circuit Breaker 3p 63a Amp 480v-ac
Timken QF15XPB Quick Flex Hub 1/2in
Camco 7.8D Overload Clutch 5000lb-in
Omar Star CK-6 Hydraulic Puller 3ton 6in
Gems 42480 Safe-pak Safety Relay 48-120v-dc
Rh Wall Mot Humidity Transmitter