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。
以下链接皆有货
COREMO OCMEA ASSAGO BRAKE UNIT 275714
Goulds 5 Vane Impeller 1.5x1-8 Part#: 76794-1203 Casting#: 56208 Suction: 1.5"
Rosemount 1151GP0E22T0927M3B3P1 Pressure Transmitter Output 4-20 0 to 5000 PSIG
Baldor .33 Hp; 1725 RPM; 56 Frame Electric Motor
1 Lot of 10 Crouse-Hinds LT7545 3/4" 45D Liquidtight Connector
KILLARK FXS-2C 20A Tumbler Switch
Westlock AccuTrak 9468 Rotary Position Monitor 9468
Phoenix Contact IBS-STTB-24-BK-LB-T Terminal Module 24VDC
Aluminum Drill Steel 4-1/2" Grade E, 9.33#. with 4" Hex Tool Joints
Numatics Pneumatic Valve, 4JLSAD3
Allen-Bradley 800T-1TA 30mm Push Button Station
General Electric 1866 Bulb Miniature
Aftermarket Fisher 15A3974X022 Seal Ring
Allen-Bradley 871P-D40NP40-D4 Proximity Switch VersaCube 10-60Vdc 2-200mA
Allen-Bradley 871P-D40NP40-D4 Proximity Switch VersaCube 10-60Vdc 2-200mA
Eaton 32WP25 AC Drive Keypad
JRC WEB ACCESSORIES 17417 AIR CHUCK
FALK 044CBN2A25 AA Gear Reducer 56C Ratio: 24.86 RPM: 1750
Emerson 3001862 F Isolated Current Output Board
AutoMax NXL51000 Ultra Switch
Dodge NSTUSC203 Take-Up Ball Bearing Unit - Side Mount, 2.1875 in Bore
Dayton 3A438 Solenoid Valve
Dodge F4BDL115 FLANGED BLK BALL BRG
Dodge F4BDL115 FLANGED BLK BALL BRG
Versa VSP-3301-31 Pneumatic Directional Valve
Nexen straight shaft 929600
Drives Model: 40-1R-10-FT 10 Foot Roller Chain
Appleton LBD-LB Conduit Body
Magnatrol 129s42 Full Port Bronze Solenoid Valve
Lot of 20 PMI A-403 WP-316/316L-S 2" SCH 40S 45 Degree Fitting
Allen Bradley 512-BJB size 1 combination motor starter
Allen Bradley 1771-A2B Series B, 8 Slot I/O Chassis
MARTIN, Bevel Gear 8 DP 20 Pressure Angle 40 Teeth 0.82 in Face Width, BS840.2
Allen-Bradley 800T-FXNP16GA7 3 Position Illuminated Push Button
Walchem EZB10D1-VE Chemical metering Pump
Eaton 8573A-6501 Solid State Relay
Electro Sensors 700-000206 Pulsar Disc
Eaton Q6A-2.5X10-B-1.00-2-N-N-N-1-1 Hydraulic Cylinder
Parker 1PLP00001490 Cylinder
Barksdale DIT-A150SS Pressure or Vacuum Actuated Switch
Rosemount Smart Family Interface 268 AD9E With Leather Case
SealMaster Bearings MP-48 One mounting bolt
Dynatorque 7D-33-2600 Valve Actuator
Viking Rotor and Shaft 631 Length: 12 3/4" Diameter: 3 3/8"
Hughey Phillips 227-4163 Lighting Flashguard
Peerless-Winsmith Electric Motor Model: M-3340 HP: 1/2 RPM: 3450 Frame: 56
LEAF SPRING FOR INTERNATIONAL NAVISTAR 3900 SERIES 1690040-C92
Cutler-Hammer A30CGT0 Ser A1 Size 1 Combination Motor Starter
Ametek 80215SE Rev D Linearizer Circuit Board
Ametek 80215SE Rev F Linearizer Circuit Board
Instrument Transformers Current Transformer 5ASFT-101 Series 5A
FEDERAL SIGNAL 2005173E-E1 POWER CONVERTER PCB CIRCUIT BOARD
SARC CR30B Voltage Converter Module
Marsh DT70PW150P Power Supply 100-240VAC, 4.6 Amp, 15VDC Out
Miller Hydraulic Valve Model: 583-D3E-551
Seal Master Pillow Block Bearing, SP-23, 1 7/16
SKF Pillow Block Bearing Housing SAI, SAF 516
Hoffman Control Panel Model: C-SD16206 w/ Allen Bradley 194R-NJ030P3 Series B
Nordson SA08H Saturn® Precision Nozzles
APV Brass Packing Adjust Ring, 2720022
Horton 841600 J Brake w/o Bracket Drum
Parker 1C943-38-20
General Signal HS1F1A 240V General Purpose Transformer
3/4HP US Electric Motor F050W03W0042R019F
Marsh Printed Circuit Board RP23718
ITE XL-X RV361G Fusible Bus Plug, 30 Amp, 600V, 20 HP
SKF 7405 BM Single row angular contact ball bearing
General Electric THLC234200 Current Limiting Circuit Breaker
Allen-Bradley 1785-L20C15/E Controlnet Processor Module
PGI International 3-way Manifold Valve M-750SCT-M7VCH
Foxboro F0109BQ-C Power Supply Module B0142DQ K
ATLAS COPCO VE-PE PRESSURE SWITCH
Opcon Data Module Model: 8404A
Appleton G-EFJB-30, 300v, MED Explosion Proof Light Fixture
Ingersoll Rand Plastic Casing EL2607N
Hayward ST262 Inverted Bucket Steam Trap
Hayward T262 Inverted Bucket Steam Trap
Goodyear Model: B210 Torque Team Basic
Allen Bradley 100-A30NZ*3 Series B Contactor, 1/3 Phase, 30 AMP
Kunkle Valve 20 D05 ¾” 100PSIG Valve
ALLEN BRADLEY 1747-L524 Ser C PC BOARD
4 product ratings- ALLEN BRADLEY 1747-L524 Ser C PC BOARD
Viking Inline Gear Reducer 3-551-050-276-DV, Ratio 2.76
Viking Inline Gear Reducer 3-551-050-276-EC, Ratio 2.76
Viking Inline Gear Reducer 3-551-050-276-DT, Ratio 2.76
Viking Inline Gear Reducer 3-551-050-276, Ratio 2.76
Parker 1PLP00001920 Hydraulic Cylinder
Thomas & Betts Model 52 Conduit Nipple, 1" *LOT OF 26*
ARO 5040-35 Pneumatic Control Valve, 1/8" Ports
Thomas & Betts 54864BE *LOT OF 10*
RBC Bearings KA030CP0 RBC
RAMSEY ENGINEERING D000-022388-01 PC BOARD
Holophane PETL175MH12 Ballast for Hazardous Locations
SPX APV J02720022 Brass Packing Adjusting Ring
Rubbermaid SST Valve Control Module
NORGREN SXE9573-Z70-70K SOLENOID VALVE 1-16 BAR
Thomas Betts 5240AL Conduit
Rosemount 1151-0011-0042 Pressure Sensor Module
Bosch 0-822-334-003 Pneumatic Cylinder
Ingersoll Rand ARO 2415-1009-030 Pneumatic Cylinder
Pall Corporation Model: HC9651FUP16H Filter
Festo DNU-32-400-PPV-A Pneumatic Cylinder
Hydro-Line Q6K-2X8-B-0.63-2-N-N-N-1-1-QA00JG Pneumatic Cylinder
Furnas Size 2 Double Starter 22FF32AA81E3, 25HP, 600V, 45A
Marathon Motor HP: 1.5 RPM:1735 PVC 56T17F5574D P
EI-FI Innovationer Belastning Act Load Detector V5-415-0666
10" Stainless Steel Impeller
Legend Model: KB1685-3 Shaft: 2" X 1 1/4"
Square D HU-363A Series D4 100 Amp Heavy Duty Safety Switch 600V 3 Phase
Endress Hauser DMC-50589NY-LY-1 Tester-Model
Datalogic 90A301230
Reliance Electric P14H3048P Duty Master A-C Motor 3HP 1725RPM 3PH 60Hz
Square D SBD H-1, 2.0KVA Type S, 60Hz Dry Type Transformer
Allen-Bradley 855T-DM1GVM
Appleton 175W 120/240V M57 Hazardous Location Light Ballast LPBH175-MT
Goulds Rear Casing Stuffing Box Cover 8" CF8M 3196 100-564
Fostec EKE DCR II LR92240 20750.2 Fiber Optic Light Source
Holophane Petrolux II Low Bay Light PTA175MHMTF, 175 Watt , 120-277V, 90C
John Crane Stainless Steel Gland Model: CF-SP-36412
Duraseal AH1664
Red Lion APLSP4A0 Digital Display
Fisher St. Gobain ¼” ID x 1/16” Wall Performance Plastic, 50’
4” 160PSI, ½”LM 201L-402F Gauge
Star Su 743-214745N
Setra Pressure Transducer Model: 204
Goulds 5 Vane Impeller Part#:100-556 Material:SS Suction: 4” Trim Size: 7.75
Foxboro, PC Board, D0140BD-B
SKF Pillow Block Ball Bearing, SY 2 11/16 TF
Parker Hydraulic Valve FM2DDDKV55XB502
Edwards Signaling, Signaling Alarm Bell, 340-4NS
Thomas Betts CCU Receptacle Cover *LOT OF 10*
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