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

Appleton EDKB102 Selector Switch Cover

APPLETON EDKF21-Q Cover With Factory Sealed Contacts 20-Amp switch 1-P 20A

Appleton EDSK-1J Control Assembly Cover Device Outlet Box Hazardous Location

Appleton EFD275J1 2-Gang Dead-End Explosion Control Control Station

APPLETON EFD275NLQ

APPLETON EFDCB150-J1 COVER FOR HAZARDIOUS LOCATION HEAVY PILOT LIGHT.

Appleton EFDCB175-12 Explosion Proof Selector Switch 2 Position Lever

APPLETON EFKB102-SELECTOR SWITCH WITH COVER 3POSITION ""

Appleton EFKB345 Control Station with Back Box 1” Explosion Proof

Appleton EFKB345 Control Station with Back Box 3/4” Explosion Proof

APPLETON EFKBJ1U2 PILOT LIGHT PB SW COVER ASSY

Appleton EFKF12Q Mall Iron Cover **

Appleton EFS2661 Explosion Proof Pilot Light Station

Appleton EGS 30 Amp Explosion Proof Disconnect Switch 600V 3 Phase AEAB3036DSQRP

Appleton Electric Aau15n Fixture,Incandescent

Appleton Electric Company Conduit Outlet Box GR-Form-3 Type GR 2" NPT

APPLETON ELECTRIC EDSC175-F1 EXPLOSION PROOF TUMBLER SWITCH  

 APPLETON ELECTRIC EXPLOSION-PROOF ENCLOSURE EJB12128

Appleton Electric Eydm-150 Eydm Sealing Fitting,25,M Iron,1-1/2

Appleton Electric Eyf-200 Ey Sealing Fitting,25 Fill,M Iron,2

APPLETON ELECTRIC EYSEF75 Sealing Fitting,Iron,Trade Size 3/4in. Lot Of 5

Appleton Electric Grfx75-A Conduit Outlet Body,X,3/4 In.

Appleton Electric Grx50-A Conduit Outlet Body,X,1/2 In.

APPLETON ELECTRIC UNF50NR Female Union,Steel,Trade Size 1/2 Of 13

APPLETON ELECTRIC UNY50NR Straight Union,Steel,Trade Size 1/2 Of 10

Appleton Explosion Proof Seal Fitting 2" EYF EYAM EYAM-200

APPLETON FM7 T37 NSNP Lot Of 4

APPLETON FM7 TB67 2" O-Z/GEDNEY FORM 7 Mall Iron Conduit Body -

Appleton GRT100 Conduit Outlet Box, Type GRT, (3) 1" Hubs, Malleable

Appleton Malable Iron Cable Tray Clamp TCC-50100G Qty 10

Appleton Single Gang Threaded Unilet EFDC110NLQ

APPLETON SIZE1 COMBO LINE STARTR EBC21AB30FW4 7-15HP 120-600V 709-B0H103 EXPLOSI

APPLETON T300M 3" CONDUIT BODY T FORM 35/85

APPLETON UNY125NR (PKG OF 5) NSMP

Appleton UNY125NR, Exp Proof Conduit Union, 1-1/4 Union Conn Type Uny, Box Of 3

Appleton UNY125NR, Exp Proof Conduit Union, 1-1/4 Union Conn Type Uny, Box Of 2

Appleton WRDK1034 100A 3 Wire 4 Plug 50-400Hz Powertite Receptacle

APPLETON, EDSC21271, CONTROL SWITCH ONLY

Applied Ceramics 91-01482A Focus Ring, 195mm. Flat Wide Lip, 154845

Applied Ceramics 91-01593A Focus Ring, 195mm, Jeida Major Flat, 154844

Applied Ceramics 91-01593A FOCUS RING, 195MM, JEIDA MAJOR GLAT, 133427

Applied Ceramics 91-01593A FOCUS RING, 195MM, JEIDA MAJOR GLAT, 133428

Applied Ceramics 91-01593A FOCUS RING, 195MM, JEIDA MAJOR GLAT, 133532

Applied Ceramics 91-01593A FOCUS RING, 195MM, JEIDA MAJOR GLAT, 133462

Applied Ceramics 91-01593A FOCUS RING, 195MM, JEIDA MAJOR GLAT, 113158

Applied Materials 0010-10055 Gas Box, WXZ AMAT CVD, 109770

Applied Materials 0010-30029 P-Chuck Lift for P-5000, 117283

Applied Materials 0010-30029 P-Chuck Lift for P-5000, 117284

Applied Materials 0010-30029 P-Chuck Lift for P-5000. 117282

APPLIED MATERIALS 0020-29862 TARGET, AL, 5N5, 300MM, 143328

APPLIED MATERIALS 0020-29862 TARGET, AL, 5N5, 300MM, 143329

APPLIED MATERIALS 0020-29862 TARGET, AL, 5N5, 300MM, 143330

APPLIED MATERIALS 0021-39569 PLATE BOTTOM BPSG 200MM XE CHAMBER RTP, 110312

APPLIED MATERIALS 0190-09545 PEDESTAL 6″, EXT, 113244

APPLIED MATERIALS AMAT 0010-20806 EQ MAGNET ASSY, AMAT 0020-24562

APPLIED MATERIALS AMAT 0021-35163 / REFLECTOR PLATE, CHMBR. BOTTOM, 109991

Applied Materials AMAT 0242-70220W P5000 Robot Drive, 8 ", KIT, 112487

Applied Materials AMAT 0242-70220W P5000 Robot Drive, 8 ", KIT, 112488

Applied Materials AMAT 0242-70220W P5000 Robot Drive, 8 ", KIT, 112489

Applied Materials AMAT 0242-70220W P5000 Robot Drive, 8 ", KIT, 112490

Applied Materials AMAT 0242-70220W P5000 Robot Drive, 8 ", KIT, 112737

Applied Materials AMAT 0242-70220W P5000 Robot Drive, 8 ", KIT, 112738

Applied Materials AMAT 0242-70220W P5000 Robot Drive, 8", 172740

Applied Materials AMAT 9150-03316 CA PX42A B/H-PX90 PC Trolley, 112453

Applied Materials AMAT 9150-03316 CA PX42A B/H-PX90 PC Trolley, 112451

Applied Materials AMAT 9150-03316 CA PX42A B/H-PX90 PC Trolley, 112452

Applied Materials AMAT Pinless PIK2 KIT, PT-9199-0001, 0043-0105, 112471

APPLIED MATERIALS, AMAT 0010-21668 PVD magnet.

APPLIED MOTION PRODUCTS 4023-833 2 PHASE STEPPER MOTOR

Applied Motion Products STF10-IP Stepper Drive 24-70v-dc

Applied Optoelectronic 4029-00 V1 1000 PCB w/ 4031-00 HV Module Board, 450455

Applied Test Systems 60-1062 PCA, Delay Generator, PCB, Axiom, 450470

Applied Test Systems K82L-0001CP PCB Board, K82L-001CP, 450474

APS Two Speed Stepper Control Board P/N 562133A1 ASSY/ 562132A1

Aqua Control Fountain Control Cabinet 3 phase 5hp Square D Siemens Swimming Pool

AQUAFINE 12120 ULTRAVIOLET DISINFECTION UNIT, 160348

AQUAFINE 12120 ULTRAVIOLET DISINFECTION UNIT, 160349

Aquafine STERIUV5 A1579 Trojan UV Water Purification System 90 Day

Aquatrac Multiflex DS121006HP1 M5T-CP-T1-TF-OR-RC Automation Controller  

AQXUR 242WA20S INDEXABLE END MILL, 2 FLUTE, 1.250" SHANK DIA, 5-5/8" OAL

AR World Wide KAW6042M1 Modular RF System 47-63MHZ , Amplifier, Combiner, 414691

Arburg ARB 696 126.111 V.00

Arburg Multronica 320M500-90 Injection Molding Machine 164857

Arburg Power Supply Unit 367D

ARCA controller 2220000 Arcapro position controller 827A.E2-000-M10-G

ARCAIR THERMADYNE GOUGING TORCH K4000 01-082-002  In Factory Box

ARCOTRONICS MKP1.44/3 CAPACITOR  

Ariel FF Lube 3/8” A-18527 E65

ARISE RISE COMPUTER UNIT REMOVED

Armstrong 1/2" NPT Inverted Bucket Steam Trap 881 250 PSI NOS

Armstrong 815 250PSGI/17BAR Inverted Bucket Stream Trap 2 1/4" 90 Day

Armstrong FH1139 125PSI Replacement Cap Assembly for Series PT-300/400/3500

Armstrong FH1556 125PSI Cover Cap Assemblyarrnaty

ARMSTRONG INTERNATIONAL 815 Steam Trap, 250 psi, 450F, 10-1/4 In. L 2 yr warrant

Armstrong KAC83 883 80 Pound Steam Trap

 ARMSTRONG LIQUID DRAINER 11-LD 264PSI DIFFERENTIAL 500PSI MAX PRESS. 18-34BA

Armstrong Machine Works CD-42 Steam Trap 10-600 PSI 3/4”  

 ARMSTRONG PUMP TRAP RC300/400/3500 125PSI W/STEAM CONDENSATE RECOVERY RETURN

ARMSTRONG STEAM TRAP 1/2” NPT CD-41 600PSI NSMP

Armstrong Threaded Water Flow Balance Valve Circuit 1.25 1 1/4” NPT

ARMSTRONG TRAP G-963 A3 MOP 75 PSIG MAP 175PSIG AT377F C984C7K 90DAY

ARO 2315-1009-030 Double Acting Air Cylinder 1-1/2" Bore3" Stroke 10 Bar

ARO 666053-388 Diaphragm Pump 100PSI 6.9 bar

Aro C38461-610 Filter/Regulator/Lubricator,208 Cfm Ingersoll Rand