90-2698板卡

90-2698板卡

90-2698板卡

90-2698板卡

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。

Cooper Apex 8MM21 8 mm 6-Point 1/4" Drive Deep Well Metric Socket

Cooper Apex M-10MM43 10 mm 6-Point 3/8" Drive Magnetic Metric Socket

Cooper Apex M-13MM11 13 mm 6-Point 1/4 " Drive Magnetic Metric Socket

Cooper B-Line AW1010P Steel Enclosure Panel Back Plate 8.75x8.88

Cooper B-Line B2005 1 1/2" TW Rigid Conduit Strut Channel Clamp Lot of 15

Cooper B-Line B2006 2" Thin Wall Rigid EMT pipe Strut Clamp Lot Of 40

Cooper B-Line B2011 1 1/4" Rigid Conduit Pipe Strut Clamp Lot Of 21

Cooper B-Line B2012 1 1/2" Rigid Conduit Pipe Strut Clamps Lot Of 27

Cooper B-Line B2207 3/8" Thin wall EMT pipe clamp strut

Cooper B-Line B355 Beam Clamp Lot of 15

Cooper B-Line BW-12 Rod and Wire fastener Lot of 137

Cooper B-Line Ladder Cable Tray 4A-12-90HB24 Hrz Bend 90Deg 12"w 4"h 2"Radi Alum

Cooper B-Line Ladder Cable Tray 6A-24-60HB12 Hrz Bend 60Deg 24"w 6"h 12radi Alum

Cooper B-Line N225 1/2" Zinc Spring Lock Nut for Channel or Unistrut Qty 93

Cooper Bussman JCL 18R 390A 5080V 80K R-rated Fuses for Motor Circuit Protection

Cooper Bussman JKS-100 Limitron Class J 100A 600V Fast Acting Fuse

Cooper Crouse Hinds FSC-1 1/2" Condulet Single Gang Cast Aluminum Device Box

Cooper Crouse Hinds VXH 15 Vaporgard Fixture Fitting

Cooper Crouse-Hinds FDC 3/4" Cast Malleable Iron Single Gang Box Lot Of 2

Cooper Crouse-Hinds FDC2 3/4" Cast Iron Box Single Gang

Cooper power series FL 11N 20R - 20 Amp Button head fuse link lot of 4

Cooper Power Tools TM34 960901 Tightening Servo Module DGD/Gardner Denver

Coorstek 75208 Alumina Ceramic AD-90 Wear Brick Lining 4"x6"x1/2" Box of 44

COPAL PG-30-102R-N Pressure Switch

Copeland FTAH-A075-IAV-001 Air Cooled High Medium Condensing Chiller 208/230V

Copeland JRN1-0025-IAA R-12 Hermetic Compressor

Copeland ZR61KCE-TFD-522 Scroll Compressor 460V 3PH Refrigeration AC

Copper Hammers 1 each, 5# round 2" face, 3# square 2" face.

COR-MET 3301 FC-O 1/16" Flux Cored Welding Wire Nickel Alloy 25# Spool

Cor-Met 95 FC-O 1/16" Flux Core Self Shield Welding Wire 5# Spool

Cotterman FUS100aC1P1 Manual Fold up step 15" wide NIB

CPC PMC1702 1/8" Hose Barb Non- Valved In-Line Coupling Body Medical Grd

CR 28760 Oil Seal 4" OD 2-3/4" ID 7/16" W

CR Chicago Rawhide 13529 Oil Seal NIB

CR Chicago Rawhide 13876 Oil Seal NIB

CR Chicago Rawhide 16679 CRW1 Oil Seal NIB

CR Chicago Rawhide 18549 Oil Seal NIB

CR Chicago Rawhide 21100 CRWA1 R Oil Seal Joint Radial NIB

CR Chicago Rawhide 39922 CRW1 R Joint Radial Oil Seal NIB

CR Chicago Rawhide CR 15138 CR-15138-USA Oil Seal Joint Radial NIB 15138

CR Chicago Rawhide CR 22363 CR 22363 USA Oil Seal Joint Radial NIB 22363

CR Chicago Rawhide CR 9647 CR-9647-USA Oil Seal Joint Radial NIB

CRAMER 113GB200 B Minutes Panel Timer 115V 60Hz 2.7w

Creston BB-1000L Pre-Construction wall mount for APAD LCDcontroller

Criterion 2O3D Boring Head w/1.250 shank 3/4" tooling

CRL CRL 857 200pF +/-10% 7.5KVDC High Voltage RF Transmiting Capacitor

Crompton 077-41LA Frequency Meter 110-130V 077-41 LA-PNAN 55-65 HZ

Crompton Greaves 3ph AC Induction Motor 1710RPM 2-DA56-E Frame Shaft Fan Cooled

Cronatron 89 Certainium 3/32" welding wire rod x 36" lot of 8Lb

Cronatron Certanium 701T P14431 Alloy Welding Rod Stick Electrode 1/16"x36" 10Lb

Crosby 063617 Style JQ Pressure Relief Valve Disc Holder 2.844" O.D.

Crosby 1/4" Eye Slip Hook 1/2" Eye Hole

Crosby 4-Sheave Crane Swivel Hook Rope Block 7.5 Ton 15000Lb 5/8" Cable Wire

Crosby Bullard 1050628 4" Pin-Lok Golden Gate Shank Hook Self-Closing 1.7 Ton

Crosby CG-8 Grade 100 3/4"x94" 2-Leg Double Sling Chain WLL 61100Lb

Crosby Grade 100 3/4"x94" DOS 2-Leg Double Chain Sling WLL 61100Lb

Crosby N-418 108127 NI-22 Snatch Block Pulley Sheave Hook 8ton 5/8-3/4"Wire Rope

Crosby S-320 Series Hoist Hook w/o latch1 ton lot of 4

Crosby U5C WLL 1/2T Safety Hook

Crouse CGB397 1in Cord Grip Strain Releif Connector 0.750-0.875"dia Lot of 15

Crouse -Hinds 5 Pin T Cable Splitter Connector Plug

Crouse Hinds Co TB17 1/2" Outlet Body  Lot of 2

Crouse Hinds Co VDB3 Vintage Industrial Explosion Proof Light Fixture Globe RARE

Crouse Hinds FDCT1 Cast Malleable Cast Iron Three-Way Single Gang Box 1/2" NPT

Crouse-Hinds ARE33 Back Box Conduit for 20/30 Amp AR Series Receptacles

Crouse-Hinds FSD-212 Cast Malleable Iron Two Gang Box 3-Hub 1/2" NPT

Crouse-Hinds VBX-10 Enclosed Wall Mounted Lighting Fixture

Crouzet 84134100 Solid State Relay 10Amp 48-660VAC 4-32VDC

Crown Alloys E309-16 309-16 Stainless Electrode Stick Welding Rods 3/16x14" 5Lbs

Crown Alloys Royal 82-10 Nickel-Chrome-Iron TIG Welding Wire Rods 1/8" 5Lbs

Crown W6AE01 020366 Forklift Drive Motor 24VDC 2.44KW W/Electric Brake SDB7.5

Crydom CSD2440 Solid State Relay 3.5-15V In 240V 40A Out

CSI Ultraspec 8000 Series Laser Machine Analyzer System w/B811701 Controller

CSN-433 Insert seats cutting tools 6 pcs

CTP 1M0498 Cat Caterpillar Piston Ring NIB

Cummins 3895786 L10 M11 Camshaft

Curtis 1205-205 D.C. Motor Controller 36-48 V 350 A

Curtis Albright SW180-326L 110613-003 Contactor 24V Crown Forklift

Curtis CD 701-100 Hour Counter Module 12-24VDC Non Reset

Curtis Instruments 933/3D48AX Battery Controller For Rapistan Demag DT60 Pusher

Curtis Machine 900811-Rev 5 Gearbox 1:1 ratio 1.375" Shafts

Curtis PMC 1205-212 D.C. Motor Controller 36-48V 350A

Curtis PMC 1207-4112 DC Motor Speed Controller 24V

Curtis/Albright SW200A-128 Electric Vehicle DC Contactor 48 V

Curtis/Albright SW202-16 24VDC Electric Reversing Contactor

Curtis/Albright SW202-41 Electric Vehicle DC Contactor Motor Reversing 48 V

Custom Bench Mount Hydraulic Punch Press For Aluminum 21 Ga x .759 Dia Holes

Cutler Hammer 10250T 91000T Yellow momentary stop push button switch lot of 2