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

 CARLO GAVAZZI SV215024 SV215-024 DUAL LEVEL RELAY 24V

Carlton K1C-BL-78E 20" Semi-Chisel Chainsaw Chain Low Kickback Chrome

Carquest 37160 Power Steering Hose for Chevrolet Cargo Van Express GMC Savana

CARQUEST 40704 Power Steering Return Hose for Ford Edge Lincoln MKX

CARQUEST B209030 HVAC Front Blower Motor for Chevrolet GMC Pontiac

Carquest CPS 83070 2" Lift / Lower Kit for Leaf Springs

Carquest EGC1034 Exhaust Gas Recirculation (EGR) Valve Control Solenoid

Carquest GEO 9386 4" Flat Band Exhaust Clamp Stainless Steel

Carquest GNAD1092 Wearever Gold Premium Brake Pad Set Cadillac Chevrolet GMC

Carquest GNAD1273 Wearever Gold Premium Brake Pads for Chrysler Dodge Jeep Ram

Carquest HS2521051 Fuel Pump for Ford F-150 F-250 F-350

Carquest Power Steering Hose 36546 92004 Cadillac Chevrolet GMC

Carquest PXD722H Front Ceramic Disc Brake Pad Set for Subaru Impreza Legacy

Carquest Transmission Filter Kit 96023 Chevrolet Daewoo Oldsmobile Pontiac 95-07

 CARR LANE CLR-201-TB THREADED BODY CYLINDER TAPPED PLUNGER BODYWORK SUPPORT

 CARR LANE ROEMHELD CLR-1892-201-SC WORK SUPPORT

 CARRIER 3111164-701 FURNACE SPEED CONTROL FOR INDUCER MOTOR

 CARRIER 33CSNA-01 COMFORT SYSTEM NETWORK ACCESS MODULE

 CARRIER 53DS-900-064 CONDENSATE PUMP

 CARRIER BRYANT HC-23UZ-120 GAS VALVE NO EXTRA PARTS

  CARRIER EF 33CZ 256 COMB GAS VALVE

 CARRIER GE HT-01BE-222 TRANSFORMER PRI-460 SEC-230 9T58B3502

 CARRIER HC 35AB 230 1/8HP 208/230V RPM 1030 2 SPEED ROT CCWLE MOTOR

 CARRIER HC-37-680002 BLOWER MOTOR 1/5HP 115V 1050RMM

 CARRIER HC-40GR-232 CONDENSER FAN MOTOR 1/4HP 208/230V 1100RPM

Carrier HD44AQ280 ECM Blower Motor Assembly 208-230V 50/60Hz 1/2HP

 CARRIER JOHNSON CONTROLS P70DA-40C PRESSURE CONTROL HK-01CA-015

 CARRIER TSAM04-MB SYSTEM ACCES MODULE

Carter M4684 Mechanical Fuel Pump for Pontiac Catalina Firebird Grand Prix

Carter P90021 Electric Inline Fuel Pump for Subaru Volvo Renault Triumph

Cascade 209514 Forklift Hose

Cascade 209529 Forklift Hose

 CASCHO 1 1/2" NPT DL C1/C1/B4 PRESSURE REDUCING VAVLVE RANGE 2-15 PSIG

Case 87454016 Hydraulic Cylinder Double Acting 44.4mm Rod 230.6 mm Stroke

 CASH VALVE BFDSSSZTS01AD PRESSURE REGULATOR 3/4"

Cashco 830-L2-5-06420-95 Compression Helical Spring

Cast Iron Manifold T0043927 VT6

CAT / Caterpillar 218-9894 24VDC Coil Assembly  with Handling

CAT / Caterpillar 318-8631 Pin Assembly

CAT / Caterpillar NA012934C Carrier Plate

CAT 40 x ER32 3" Collet Chuck CAT40ADB-ER32-3.000

CAT Caterpillar 1F2771 1F-2771 Ball Bearing

CAT Caterpillar 276-7276 GP Retractable Seat Belt

CAT Caterpillar 276-7276 GP Retractable Seat Belt **

CAT Caterpillar 308-9679 / 3089679 Fuel Filter

CAT Caterpillar 333-7127 High Pressure Hose Assembly WP 41.3 MPA

CAT Caterpillar 348-3458 Fuse Block Assembly

CAT Caterpillar 352-4756 Wire Harness Assembly

Cat Caterpillar 381-5746 Harness Assembly

CAT Caterpillar 382-6262 Mulching Head Drive Cutter Tooth

CAT Caterpillar 392-9727 Chassis Harness Assembly

Cat Caterpillar 398-1869-00 Elbow

CAT Caterpillar 416-5957 / 4165957 Radiator Hose

CAT Caterpillar 417-9242 / 4179242 Harness Assembly

CAT Caterpillar 434-9402 / 4349402 Hose Assembly

Cat Caterpillar 505-0216 Retainer - Clamp for D9L Tractor

CAT Caterpillar 511-3194 / 5113194 Excavator Tube Assembly

CAT Caterpillar 521-9461 Retainer Kit

CAT Caterpillar 539-1625 AS - Fuse Holder 80A 100A for Excavator

CAT Caterpillar 600-7117 Seat Belt Assembly

CAT Caterpillar 9377601300 Lift Pipe for Lift Truck

CAT Caterpillar 9441000600 Mast Roller Bearing

CAT Caterpillar Drive Shaft 271-6817 / 2716817

CAT Caterpillar F8032-00308 / F803200308 Roller Bearing

  CAT CATERPILLAR P/N 6T-8436 SEAL G

CAT Caterpillar Tilt Hose 97E7506100

Cat Wall Shelf / Perch with 3-Steps Top of Shelf and Steps are Black

Cat50 Collet Chuck Holder ER32X6.000 E / 4534477

 CATERPILLAR 117-9663 CHASSIS HARNESS CABLE-WIRE TRUCK REPLACEMENT NO 51 B

Caterpillar Branched Wiring Harness 294-2709 2942709

Caterpillar CAT 202-8022 / 2028022 Switch Assembly

Caterpillar CAT 9181203801 Bushing Support

Cave Tools Stainless Steel Kabob Rack for Shish Kebob Skewers

CAXT L4A-PDMDM-8-C Sureflex Jumper w/ Interface Type 7-16 DIN Male 8ft

CBC9J 1-1/2" WROT Copper X Copper 90° Elbow 1-5/8" OD

 CBF 23220-HL-C3/S SPHERICAL ROLLER BEARING ITALY

 CCI DRAG CONTROL VALVE 103241178001 CAGE

CCI Thermal Tech. 6000BTU/HR Thermostat  (8-5)

 CCS CUSTOM CONTROL SENSOR 611G181 PRESSURE SWITCH

 CCS CUSTOM CONTROL SENSORS 611G3054 PRESSURE SWITCH

 CCS CUSTOM CONTROL SENSORS 611GM1787 PRESSURE SWITCH

 CCS CUSTOM CONTROL SENSORS 611GM2 PRESSURE SWITCH

 CCS CUSTOM CONTROL SENSORS 695G48 PRESSURE SWITCH

CDI Control Device Air Safety Valve 4TK17 / SCB5075-0A125 / SCB50750A125

  CEE C-E-E TTG7113 VOLTAGE RELAY

 CEM 307000 ASHING FURNACE ASSEMBLY ONE PIECE ELEMENT HIGH TEMPERATURE

Centripro M07422-01 Continous Duty Submersible Motor 230V 3/4HP 5 Amps 3450 RPM

Certified Cirus Control Systems Spreadspart LK 11/27/18 030193

Certincoat 9875 Recirculation Blower Wheel for C2 Hoods

CF24VBUU A-Frame Small Cam Roller 62mm X 29mm x 24mm

CF30-2BUU A-Frame Large Cam Roller 90mmX30mmX35mm

 CHALLENGER CE3040 3 POLE 40A/AMP CIRCUIT BREAKER

Chalmers 800201CS1 #1 Joint Spigot Cap

Champion RW78N Industrial Spark Plug

 CHAR-LYNN EATON H-070DA-2G HYDRAULIC ORBIT-MOTOR GEAR PUMP

Chart 14743180 Regulator Max Inlet 500 PSIG

Chatsworth 12730-718 3" Channel Rack-To-Runway Mounting Plate w/ Bracket

Chatsworth Vertical Cable Manager Rack Set 12465-207

Chem Oil 871T04 Swing Check Valve 1/2" Forged Steal A105 1975 PSI

 CHEMETALL OAKITE976 SER. VG-812 CONDUCTIVITY CONTROL

 CHEMETRONICS 603 SERIES 600 HEAT DETECTOR

  CHESTERTON 478-11/35M-GL-S P/N 050704 SEAL -11/35M SHAFT 1.375

 CHESTERTON 732-32/100M-SU-TC SEAL P/N 046831

 CHESTERTON 891 891-32RU-TC/S SEAL P/N 664367

Chevy Chevrolet 6-Button Key FOB / Keyless Entry Remote

CHG R24 Door Latch & Strike Non-Locking

CHG SS 4" Heavy Duty Appliance Leg A48-5032-C  (Y-5)

Chicago Faucets 335-xjkabnf Adjustable Cycle Time Closure Metering Cartridge

Chicago Faucets 377-XTRHBL12JKNF RH Quaturn Compression Operating Cartridge

Chicago Faucets 622-001PCP Wall Elbow 90° Chrome Plated

Chicago Latrobe 55464 / 1P361 Silver Deming Drill 1" HSS 118 Deg Reduced Shank

 CHICAGO RAWHIDE 88760 OIL SEAL

Chief SLB298 Projector Interface Bracket Black

 CHINT NS2-MC01 WATERPROOF BOX WITH RED EMERGENCY STOP BUTTON

Chromalox / Emerson Bake Element for Whirlpool CH775 865940 455988

 CHROMALOX 288497 MTO-110E2 IMMERSION HATER 120V 1PH 100 KW

 CHROMALOX AR-514LT THERMOSTAT INDUSTRIAL ALL WEATHER 200-550F 277V 30A

 CHROMALOX ARMT0-2155T1 IMMERSION HEATER 120V 1.5K WATTS 156-050504-201

 CHROMALOX CBH-3647 ELECTRIC STUD HEATER 240V 4200 WATT

 CHROMALOX CBH-4258 ELECTRIC STUD HEATER 240V 5300 WATT

Chromalox Element 087-874652-002 120V 500W

 CHROMALOX MT-375A IMMERSION HEATER 480V 7500W 3PH P/N 191660

Chromalox Star Warmer Heating Element 2N-Y6366 120V 1000W

Chromalox Water Immersion Element 877510001 120V 175W

Chrysler 04694524AB Oil Pan / Oil Sump  With Handling.

Chrysler 04766423AD Lower Left Suspension Control Arm Dodge Journey 2009-14

Chrysler Door Locking Mechanism GL 20 I120032

Chrysler Mopar 68370066AC Engine Coolant Expansion Tank for Dodge Ram 2500 3500

 CINCINNATI ELECTROSYSTEMS 4161-7-24 DISPLAY

Cipa 46497 1FX361BSAD RH Power Foldaway Heated Mirror for 09 Dodge Ram 1500

Circular Indoor/Outdoor Convex Mirror 180° Viewing Angle 20LP26 DCVO-16T-4DP-PB