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

BISupply Adjustable Floor Jack Post Basement 36" Ceiling Support Pole

Bitmain Antminer L3+504M+Power Supply DPS-1200FBA 100V 800W

BJB Fluorescent Bi-Pin Lamp Socket Tombstone Ends 26.292.6211.51

BJE Black Night 99" Liquid Level Tank Gauge 011809 No Float Included 2" NPT

BK PRECISION 2130C 30MHz DUAL TRACE OSCILLOSCOPE

BKI SB1938 Probe Assembly Kit

BLACK & DECKER 7950 4500RPM COMMERCIAL DUTY SANDER

Black Box 10/100 Media Converter w/ 2 Port Switch for milti-mode fiber Model LB

Black Box 4-Port USB 2.0 CAT5e/6/7 Extender Over LAN IC408A-R2

BLACK BOX ACS4201AR2 DVI-D KVM EXTENDER REMOTE UNIT

BLACK BOX ACU5520A DUAL LINK DVI/USB EXTENDER SRX LOCAL

BLACK BOX ACU5520A DUAL LINK DVI/USB EXTENDER SRX REMOTE

BLACK BOX BLACK BOX SERVSWITCH DUO R2 P/N KV6112FA-R2

BLACK BOX LGB2124A FANLESS GIGABIT SMART WITCH ECO

Black Ductile Iron Reducing Tees 2"x 2"x 1" FNPT Female Threaded

BLACK HAWK P420 HYDROLIC HAND PUMP 10000 PSI WITH HOSE

Black Horse Off Road Atlas Roll Bar Bed For 2020-2023 Jeep Gladiator SEE DESC

Blackburn RCJ20 2/0 AWG Aluminum Jumper Compression Sleeves 6-3/4" Long

Blackmagic Teranex Mini 12G-SDI To Quad SDR Up To 2160p60 CONVNTRM/DB/SDIQD

Blacoh A101NDP Pulsation Dampener Sentry I 370 in³, 2" FNPT 200 PSI Polypropylen

Blacoh RC-10PP-E50 Pulsation Dampener 150 PSI 10 CU 1/2" FNPT Sentry III

BlastPro 4" Concrete Scraper Carbide Tip Blade Straight Shank BP87000562-C

Blaylock LL-10 Spring Loaded Thief Hatch 16oz. 10-3/8" with Pressure Gasket

Blickle 7" x 2" Caster Wheels Polyurethane-Elastomer Blickle Besthane

Blickle Pressed Steel 10" Swivel Caster Top Plate Nylon Heavy Duty Wheel

Blickle Single Flange Track Wheel 10" Dia, 3-1/8"W, 1-9/16" Bore SPK 251K

Bliss Anand Sight Flow Indicator 1000S 1/2" 1440PSI A351 Grade CF8M

Blocstop D500E BSO500 Secondary Brake W/ Electric Cut Off For 5/16" Wire Rope

Blue Banger Hanger Metal Deck Inserts SDI381258 Fits 3/8", 1/2", 5/8"

Blue Banger Hanger Steel Deck Inserts SDI381258 Fits 3/8", 1/2", 5/8"

BLUE MELECRIC PRO750 TEMPERATURE CONTROLLER

Blue Ox 2" Receiver Ascent Tow Bar BX4370 For Smaller Cars & SUVs

Blue Ox Sway Pro Weight Distribution Hitch Head Assembly BXW1500 1500lb

Blue Sea 5191B Fuse Blocks Single Terminal FLM-10

Blue Sea Systems 7622B-BSS ML ACR Automatic Charging Relay Knob 12V

Blue Sea Systems ML-RBS Remote Battery Switch 12V 7700100B-BSS

Blue Square 501003GR Eclipse Drain 22" x 7"

BLUE-RAY BXR MARK V MKV X-RAY DUPLICATOR

Blue-White Industries F-440 OEM Mullarkey F-44750LK-12 Flow Meter 3/4" 0-10 GPM

Blumaq Repalcement Gear 9G8638 For Caterpillar 6A, 6S, 6SU, D6H, D6H XL

BMC Casappa Hydraulic MP Double Gear Pump 3.16/2.68CI KP30.51-A8K9-LSF/OF-M5-CSL

BMI 3030A POWER ANALYZER POWER PROFILIER

BMI A-111-2485 AC /DC IMPULSE PROBE

BMR On Car Rear Toe Rods Adjustable Rod Ends TR005R For 2015-2020 Mustang

BN Products 1C2066401 Housing Replacement for DCC-2018HL Portable Rebar Cutter

BNR S4 Turbocharger 2.36" Inlet For 2007-2013 Mazda Speed 3, 2006-2007

Boart Longyear 450582 Shank Head Cylinder Adapter Drill 41" HPR6832 EL68

Boart Longyear Jaw Kit for Up To 10 1/2" Pipe Breakout Wrenches Block 100C

Boart Longyear PQ Inner Tube To E Thread Adapter 5700183

Bock 08084 Discharge/Suction Service Valve FKX40 390/470

 BODINE 30R0BECI-D3 INDUSTRIAL GEAR MOTOR

Bodine 33A3BEPM-Z2 DC Gear Motor 130VDC 1/12HP 12:1 Ratio 20LB-IN

Bodine BSL310AZ Class 2 Output 120-277 VAC Emergency LED Driver

Bodine Electric 1/6 Hp 57 Rpm 30:1 230V Parallel Shaft AC Pacesetter Gear Motor

Boeing S012T23616 Rod End Linkage for Aircraft

Boiler Assembly 110V For Tabletop Coffee Machine Pro LE307A LV307A LE307B

Bollards 7" Dia x 12"L 11 Gauge SS304 Brushed Finish Embedment Sleeve Removable

Bolondi SW049-AA.06 Cleaning Head Flow 16 USG/min 2100 psi Max Pressure 2017

Bombardier CRJ 200 Flexible Drive Shaft 601R93106-107 1104SD100-101

Bombardier Door Control Panel 520088727 DCP

Bombardier Learjet Airstair Door Hinge Assembly 85217049-051

 Bombardier Traction Brake Master Controller 813555 SEE DESC

Bondioli & Pavesi Quick Disconnect Tractor Yoke for Size 6 100 Series 80 EL CV

Bonfiglioli IEC Asynchronous IE2 3PH 1HP Motor BE 80 B 4 IP55 CLF 230/400-50

Bonfiglioli Riduttori 714286146, FD07, 100 VDC 0.75A 120Nm Electric Brake Coil

Bonnet Assembly Repair Kit ME815P-16BRK For Marshall 2" Globe & Angle Valves

Bonser Less Flow Div Hydraulic Gear Pump w/ 2.59" Shaft Extension For Forklift

BOP 13-5/8" 3/10000PSI Variable Bore Ram Top Seals 700U For MR-0175

BOP 13-5/8" Packer VBR Series 700 Fixed Bore Top Seals 3/10000psi WP

Borg Warner John Deere Turbocharger S2A For 1998-2007 4045TFM50 Engines

Börger W50514 Drive Shaft w/ keyway FL518 1.7225 Rotary Lobe Pump

Borgeson F-65852.41 Steering Shaft Assembly 000970 for 1975-1979 Ford F-150

Borgeson Front Steer Power Steering Conversion Box For 1965-1967 Ford Mustang

Borgeson Telescoping Steering Shaft 000905 for 1976-1986 Jeep CJ

Borghi Assali Twin Rear Hydraulic Axle 47102000 398746

BorgWarner 53269886492 K26Turbocharger For 1980-2003 Volvo Penta Ship TAMD40

BorgWarner 93097 Refrigeration Alternator 12V 60A M6x1.0B+ Output Terminal

BorgWarner Turbine Housing For S400SX 1.00 A/R T4 VTF

Bosch 0001362310 Starter Motor 12V 10-Teeth 27546 for Case Agricultural Tractor

BOSCH 015 492 PNEUMATIC CYLINDER MAX 10 BAR

BOSCH AG/P-S 1070064905-104 PC BOARD

BOSCH ASM 10-TD 1070077516-104 SERVO DRIVE

Bosch BYD Auto Steering Gear Box 8098 957 124 Commercial Vehicle K9D-3411010A

BOSCH CARDRACK RACK 2AMP 230/115VAC 15x20x11

Bosch DCN-DISD-D Black Base Discussion Device w/ Speakerphone Bluetooth Touchpad

BOSCH DENOX DEF DOSING INJECTOR MODULE 2.2 0-444-043-017

BOSCH INDRAMAT TBM1.2-40-W1-0 24 AC SERVO BLEEDER MODULE

BOSCH INDRAMAT TBM1.2-40-W1-024 AC SERVO BLEEDER MODULE

BOSCH INDRAMAT TVM 1.2-050-220/300-W1/115-220 SERVO POWER SUPPLY

BOSCH PSI 6100.650L1 MITTELFREQUENZ INVERTER PSI 6100

Bosch R911321052 Motor Continuous Torque Of 80.5 Nm

Bosch Rexroth 4WE10EB50/EG24N9DAL/M Directional Control Solenoid Spool Valve

Bosch Rexroth A10CNO45DFR152R Hydraulic Pump For Deutz-Fahr TTV 610-620 Tier 3

BOSCH REXROTH HAT01.1-002-NNN-NN

BOSCH REXROTH HMS01.1N-W0020 INDRADRIVE M SERVO DRIVE

Bosch Rexroth Hydraulic 4WRL 16 W180S-3X/G24EZ4/M & Series 4WRPH Size 6 See Desc

Bosch Rexroth Hydraulic Directional Control Valve 4WE 10 H50/EG24N9K4/M

Bosch Rexroth Hydraulic Directional Valve 0811404608 Series 4WRPEH6 Size 6

Bosch Rexroth John Deere Control Valve Electrohydraulic Hitch Control EHC

Bosch Rexroth MNR R053514510 Steel Ball Transfer Units

BOSCH REXROTH PRC7300 PRC7300-L1-01VRS-0300-01-00001-CC-00 CONTROL

Bosch REXROTH R16513222Z Ball Runner Block CS CS KWD-035-FNS-C2-P-1

Bosch Rexroth R900423328 MK20G14/V Check Valve

Bosch Rexroth R901123502 Check Valve Sandwich Plate 350 bar Z2S6A1-66 / VS055

BOSCH REXROTH R911328093 1C-PB-ENS-NNN-NNN-S2-S-NN-FW CONTROL UNIT INDRA DRIVE

Bosch Rexroth R930065167 LF122x301OC0100 Hydraulic Valve 310 Bar

BOSCH REXROTH Roller Runner Block Carbon RWD-045-SNH-C3-P-2

Bosch Rexroth RWD-045-FLS-C2-H-2 Roller Runner Block R18534237X SEE DESC.

Bosch Rexroth RWD-045-FLS-C3-P-2 Roller Runner Block R18534322X

Bosch Rexroth Servo Motor R911344212 For Single Or Multiple Axis Drive/Controls

Bosch Rexroth Z2FS6-2-4X/2QV Flow Control Throttle Valve R900481624 SEE DESC

Bosch RotoZip Screws For Router 130.2662 2610991306

BOSCH ZS 350 1070077997-102 PC BOARD

Bosch-Rexroth Ball Runner Block Carbon Steel Size 35 R165332420

BOSE 414255 SOUNDLINK BLUETOOTH SPEAKER III *TESTED*

BOSHART BRONZE O-RING UNION ADAPTERS 1-1/4" FPT X 1" PEX 07-UC12-P10NL

Boshart SSMA-100 1 " MPT x Barbed Stainless Steel Male Insert Adapters

Bostitch RH-S10D131HDG Round Head Framing Nails 3" x .131" 21°

Boston Gear 30:1 1.8" 56C Flange 1" Shaft Hollow Bore Stainless Worm Gearbox

Boston Gear 710-15-H Right Angle Worm Gear Speed Reducer 15:1 Single Reduction

Boston Gear 90° Speed Reducer 10:1, Input 0.86HP, Output Torque 281 LB/IN

Boston Gear ORC2SATLP18T5 Rotary Overload clutch

Bottom Roller for John Deere AT366460 for CT33E

BOTTOM SLIDE ONLY For Rev-A-Shelf Pantry Pullout White 21.5"L PS215KIT-D

Bottom Track Roller 22H-30-14101 For Komatsu Mini Excavators PC56-7 PC57-7

bow 0-260 PSI Nitrogen Tire Tyre Pressure Gauge & Hose 8V Valve NTG2604-S

bow SIC3500-001 OLEO Tire Strut Accumulator Inflation Tool Gauge 3500PSI

Box METTLER PH Sensor InSUS307 PN 52004052 For Eldon James Port Disc

Box of 100 Eaton Ultra Range Copper Squeezon Connectors 1/0-#2 STR Grove A & B

Box of 100 Ilsco CP-4 Copper Post Connector 4-18STR 6-18SOL 1/4" Bolt Size

Box of 1000 Texas Instruments General Purpose Amplifier 4 Circuit 14S0IC

Box of 15 Eaton Cooper Power Dual Sensing Bayonet Fuse Links 3Amp 23kV