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

KNIEL MPDS-4000 PSU MODULE

Knight Fillamax Bottle Top Dispenser  See Pictures

Knu-Vise PHL-600 Straight Line Action Clamp 600lb Load Capacity

Kobold DON-125GN6 Flow Meter Gallons 1.25" NPT w/ LCD Display 925 Max PSI

Kodak Scanner Module Top Camera Assy CP4F5086

 KOGANEI JTAS40X15 AIR CYLINDER W/SENSOR JTAS40X15-CS3HA2

Kohler 186-SN Dual Flush Actuator Vibrant Polished Nickel

Kohler 8304-KS-NA Rite Temp Pressure Balancing Valve Body & Cartridge Kit

Kohler 97339-NA Multi Faucet Mounting Block for Select Floor Mount Bath Filler

Komatsu 3EB-73-A5660 Forklift Lower Bracket

Komatsu CH5509 / A 80926#3194 Receptacle  *Read Description*

Komatsu Cylinder Kit 3EC-30-00010

Komatsu Hydraulic Valve Elbow 423-62-34470 / 4236234470

Konday Golf Impact Bag Golf Swing / Power Hitting

Konica Minolta Dust Proof Filter 65AAR71800  (Z-4)

Konica Minolta Dust Proof Filter 65AAR71800 Bizhub Ikon Oce + MORE

Konica Minolta Middle Exit Roller 65AA49050 4969-1046-01 Bizhub Ikon +MORE

 KOYO 5218 5218CD3 DOUBLE ROW BALL BEARING

 KOYO 62152RDTC3 SEALED BALL BEARING 6215-2RDTC3

 KOYO 6310C2FYP5 SUPER PRECISION BALL BEARING

 KOYO 7213C-P4 ANGULAR CONTACT BALL BEARING

 KOYO ACH017CA-5GL-FT-P5 SUPER PRECISION BEARING

 KOYO APS-30-4T PROXIMTY SWITCH

 KOYO NN3015KWC1NAFWP4 CYLINDRICAL ROLLER BEARING NN3015KMSPW33

Koyo USA KESTB3372LFT Outer Pinion Bearing Set for GM 8.6" Rear End

Kozyard KZTIVK500 Tankless Water Heater Isolation Valve Kit

 KRACHT KF1/8D10K-P0A-7DE2 HYDRAULIC MOTOR

Kratex BMW 5 6 Series 1982-89 Drive Shaft Center Support w/ Bearing 101-4615

 KRAUS & NAIMER 590.XGK4000 DISCONNECT SWITCH

Kraus KPF-2620CH Oletto Pull Down Kitchen Faucet Chrome Finish Dual Function

 KRAUS NAIMER KG10B T302/D-A016 DISCONNECT SWITCH

Krauss Maffei Pressure Piece 8115800 / KS802451001 / 81306412/10

KTM A61007925010 Fuel Tank Protector Left  *Read Description*

KTM A61007925020 Fuel Tank Protector Right, Carbon

Kuhnke H24-F-HS2222 Solenoid Assy 12VDC JNJOCD 353415

 KUHNKE SP751.0004

 KUNKLE 19-C01-MG 1/2" VALVE 10 PSIG

 KUNKLE 264P-C01-KG 264P-C01-KG0200 SAFETY RELIEF VALVE

 KUNKLE ABBBDCM03-KE-0300 PRESSURE RELIEF VALVE SIZE 1/2" 300PSI

Kuplex T/V K-500 1/2" Clevis Grab Hook G8/G10

Kuri Tec Klearon K010 Food Grade PVC Tubing 1/2" ID x 5/8" OD x 100ft

 KURODA A12FD25-1P SOLENOID VALVE

Kwikset 97300-939 Prismo Privacy Door Knob w/ Lock Matte Black

KYB Strut Mount SM5043 Buick Chevrolet Oldsmobile Pontiac

 KYK 6310LLUUC3PRX SEALED BALL BEARING

Kyocera TK-122 Laser Toner Cartridge for Mita FS-1030D FS-1030DN

KYTOLA FLOW METER LK-6EL 0-10 GPH /  

 KYTOLA KEK-4EG-N FLOWMETER

L.B. Foster PTO Device Timeout 30 Sec C-0022

LA Choppers LA-8005B13B Black Vinyl Coated Stainless Steel Brake Line for Harley

LA Choppers LA-8005C13B Black Vinyl-Coated Stainless Steel Clutch Line Kit

LA Choppers LA-8005TH13B Throttle Cable Black Vinyl Coated for Harley Davidson

LaChoi JT503D Electronic Analytical Balance High Precision Scale 500g x .001g

Laird Tflex SF640 DF A16366-04 Thermal Management Pads 18" x 18"

 LAMB GRAYS HARBOR 06693405 MOTOR POWER CABLE

 LAMB GRAYS HARBOR 06931418 MOTOR FEEDBACK CABLE

 LAMBDA EWS25-5 5V 5A

LAMBDA LJS-12-50V POWER SUPPLY

LAMBDA LJS-12A-24-OV POWER SUPPLY

  LAMBDA MODEL LOS-W-5 POWER SUPPLY

 LAMBDA SR60-24 CNC POWER SUPPLY

Land Cruiser Jeep Truck Tailgate Tail Gate Latch Handle  See Pictures

 Lanthanated Tungsten Electrode 1/16" x 7"

Lapp Skintop U210 Strain Relief Cable Gland 2-1/4" Max Diameter

 LARCO 6" RD PLAIN 6R0 PRESS TO OPEN PLATE WALL SWITCH MODULE

 LARCO Z1770 ZONE MONITOR

Lasco 3/4" x 12" Swivel Joint Male Thread Swivel D3139 / F1970 W.P. 315 PSI

Laser Printer Cartridge for Konica Minolta FO44ND

Laser Toner Kit 4420 for Panasonic KX-P4420

Lasfit LL-HN17 1st & 2nd Row Floor Mat Set for 2023-24 Honda Accord

Lauren AgriSystems Tri-Circle Liner 18-03 w/ Shell 608

Lawn Mower Deck Spindle w Pulley for Cub Cadet w Triangle Blade Key  See Desc

Lawn Mower Gas Tank K3441-2401-023806

Lawn Mower Replacement Spindle Assembly for Cub Cadet Star Blade Hole 4"x4" Base

Lawn Mower Spindle Assembly w/ 5-Point Spindle Star  **No Hardware**

Lawnmower Deck Spindle for Craftsman

Lawnmower Spindle and Pulley Assembly C-048PDL

Lawson 1/2X1/2 Coupler Plug 54561

L-Com ARNP-1700 Reverse Polarity Type N Plug Crimp Connector

L-Com Reversible Hardware Molded D-Sub Cable 10' CRMN25MF-10

LDB 100 Sink By-Pass Bowl See Pictures  (X-5)

 LDI INDUSTRIES 201452 LUBRICATOR 0.5 OUNCE RESERVOIR 1/8 NPT

Leach BACRI3CD2 Relay

Leathercrafting Hand Spot Setter 65-2945 Adjustable

 LECHER 67116.17.BL000 567.116.17.BL TANK WASHING NOZZLE 3/4" STAINLESS STEEL

 LECHLER 567.279.17-BL WHIRLY TANK CLEANING NOZZLE 360°DEGREE

LED Corn Light E39 5,000K 100-277VAC 46990ATR / CH-CORN-100W

LED Hover Taillight for Motorcycle with EMC LY-HLTL-006-CH

LED UFO High Bay Area Light 5000K 200Watt 120° Beam Angle

LED UFO High Bay Shop Warehouse Dimmable Light 300W 100-277VAC 5000K Color Temp

LED Waketower All Round Light Nature White 4500K 120° LED Beam Angle

LEEDS & NORTHRUP SPEEDOMAX RECORDER 610002 TC TYPE K

 LEESON 098000.00 MOTOR 90V 1750RPM SS56C FRAME C42D17FK1C

 LEESON 113957.00 PUMP MOTOR D14B A6C34FK53F 1 HP 115/208/230 V

LEESON 174459.00 SPEEDMASTER ADJUSTABLE SPEED AC DRIVE 400/480V

LEESON 174923 AC DRIVE

 LEESON C145T34DK13 MOTOR 2-1/2HP 208-230/460V 3500-2900 RPM

 LEESON C145T34FK38 MOTOR 3-2HP 3 PHASE 145JM FRAME G121860.00

 LEESON M1125048.00 GEAR MOTOR 1/20 HP 180V GEARMOTOR RATIO 90:1

 LEESON P7272010.B1 GEAR REDUCER 2.6 HP 13.26 RATIO 56C FRAME

 LEESON/STEARNS 105602101001-REVA BRAKE KIT FOR TEFC MOTORS 17514000-REV02

Left Front Control Arm Bushing 31126756063 for BMW 3 Series Z4

Left Rear Door Rear Outside Belt Molding 05076859AJ for Dodge Journey 09-16

Legend 313-284NL 3/4" T-4326NL IPS-PAK x FNPT Coupling

Legris 116278 In-Line One Way Flow Control Valve 1/2" Tube OD x 1/2" Tube OD

 LEHGH HP25 PNEUMATIC AIR CYLINDER 2.50"X9"

 LEHIGH HP20 HYDRAULIC CYLINDER 2.00" BORE X 2.00" STROKE

 LEINE&LINDE SERIES 500 P/N 519067-02 MODEL RHI-504 ENCODER-RESOLVER

Lemforder 1052301 / 31121127725 Front Left Control Arm for BMW 3 Series

  LENNOX # 88C8401 TIME SWITCH TORK # S-752-O

 LENNOX 16J86 LOW AMBIENT KIT FOR CHA16, GCS16-1353

Lennox Element 60898 / P-8-6680 277Vac 4700 Watt 14.7 Cold Ohms

Lennox Vent 3" 90° Vent Pipe Elbow Adapter 75W70 / C5VENT3E / 3CGVSW90L-C

Lenox 1779772 2L Snap Back Hole Saw Arbor + 3002828L 1-3/4" Hole Saw

 LENTECH DLBO-16-F LINEAR BALL BUSHING BEARING

LENZE 2012-1 I/O MODULE W/CARD HOLDER

 LENZE AC TECH ESV751N02YXB563 FREQUENCY DRIVE

 LENZE ACTECH E94ZAHBK2 TERMINAL MODULE NO EXTRA PARTS

LENZE ESV751N04TMC AC TECH DRIVE FREQUENCY INVERTER

 LENZE EZN3A0150H024 LINE REACTOR

 LENZE SMVECTOR ESV751N04TMC ESV751N04TMCXX1E47 FREQUENCY DRIVE-INVERTER

 LEUZE PRK97/4-D-S.1 POLARIZED RETRO PHOTOELECTRIC SENSOR

Lever Action Drum Pump  **Comes As Pictured**

LEVITON 360MI7W MANUAL MOTOR CONTROLLER PIN&SLEEVE CONNECTOR 60 AMP 480V 2P3W

Leviton 4UFH8 061-25W07-000 Wetguard Locking Connector 15/10 Amps 125/250Vac

Leviton 5C374 Connector 20A 125V 5-20R

Leviton 5F100-8MP Opt-X 8-Pack Plate 96-F Loaded w/ 8 12-Fiber MTP Adapters

Leviton LSPD2-T Surge Protection Device & Circuit Breaker 20A 120V AC/CA

Leviton Monet White Slide Dimmer Digital Preset Controls MNI06-1LW

LF Parts USA Thin Blue Line Flag Adjustable Trailer Hitch Cover fits 2" Receiver

LG 31419SK47F PC Board