125800-01本特利

125800-01本特利

  PLC產(chǎn)品種類繁多，其規(guī)格和性能也各不相同。對(duì)PLC的分類，通常根據(jù)其結(jié)構(gòu)形式的不同、功能的差異和I/O點(diǎn)數(shù)的多少等進(jìn)行大致分類。

    1．按結(jié)構(gòu)形式分類

    根據(jù)PLC的結(jié)構(gòu)形式，可將PLC分為整體式和模塊式兩類。

    （1）整體式PLC  整體式PLC是將電源、CPU、I/O接口等部件都集中裝在一個(gè)機(jī)箱內(nèi)， 具有結(jié)構(gòu)緊湊、體積小、價(jià)格低的特點(diǎn)。小型PLC一般采用這種整體式結(jié)構(gòu)。整體式PLC由不同I/O點(diǎn)數(shù)的基本單元（又稱主機(jī)）和擴(kuò)展單元組成?；締卧獌?nèi)有CPU、I/O接口、與I/O擴(kuò)展單元相連的擴(kuò)展口，以及與編程器或EPROM寫入器相連的接口等。擴(kuò)展單元內(nèi)只有I/O和電源等，沒有CPU?；締卧蛿U(kuò)展單元之間一般用扁平電纜連接。整體式PLC一般還可配備特殊功能單元，如模擬量單元、位置控制單元等，使其功能得以擴(kuò)展。

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（2）模塊式PLC   模塊式PLC是將PLC各組成部分，分別作成若干個(gè)單獨(dú)的模塊，如CPU模塊、I/O模塊、電源模塊（有的含在CPU模塊中）以及各種功能模塊。模塊式PLC由框架或基板和各種模塊組成。模塊裝在框架或基板的插座上。這種模塊式PLC的特點(diǎn)是配置靈活，可根據(jù)需要選配不同規(guī)模的系統(tǒng)，而且裝配方便，便于擴(kuò)展和維修。大、中型PLC一般采用模塊式結(jié)構(gòu)。

    還有一些PLC將整體式和模塊式的特點(diǎn)結(jié)合起來，構(gòu)成所謂疊裝式PLC。疊裝式PLC其CPU、電源、I/O接口等也是各自獨(dú)立的模塊，但它們之間是靠電纜進(jìn)行聯(lián)接，并且各模塊可以一層層地疊裝。這樣，不但系統(tǒng)可以靈活配置，還可做得體積小巧。

    2．按功能分類

    根據(jù)PLC所具有的功能不同，可將PLC分為低檔、中檔、高檔三類。

    （1）低檔PLC  具有邏輯運(yùn)算、定時(shí)、計(jì)數(shù)、移位以及自診斷、監(jiān)控等基本功能，還可有少量模擬量輸入／輸出、算術(shù)運(yùn)算、數(shù)據(jù)傳送和比較、通信等功能。主要用于邏輯控制、順序控制或少量模擬量控制的單機(jī)控制系統(tǒng)。

    （2）中檔PLC   除具有低檔PLC的功能外，還具有較強(qiáng)的模擬量輸入／輸出、算術(shù)運(yùn)算、數(shù)據(jù)傳送和比較、數(shù)制轉(zhuǎn)換、遠(yuǎn)程I/O、子程序、通信聯(lián)網(wǎng)等功能。有些還可增設(shè)中斷控制、PID控制等功能，適用于復(fù)雜控制系統(tǒng)。

    （3）高檔PLC   除具有中檔機(jī)的功能外，還增加了帶符號(hào)算術(shù)運(yùn)算、矩陣運(yùn)算、位邏輯運(yùn)算、平方根運(yùn)算及其它特殊功能函數(shù)的運(yùn)算、制表及表格傳送功能等。高檔PLC機(jī)具有更強(qiáng)的通信聯(lián)網(wǎng)功能，可用于大規(guī)模過程控制或構(gòu)成分布式網(wǎng)絡(luò)控制系統(tǒng)，實(shí)現(xiàn)工廠自動(dòng)化

FARRAND 51 & 1/2" O.A.L. TAPE SPAR LINEAR SCALE 218052-15-1038

TOL-O-MATIC B3W LINEAR BELT DRIVE ACTUATOR WITH MOTOR, NNB

NSK 80" O.A.L. LINEAR BALL SCREW W5016-1987-C5Z 05L5-0005

INA LINEAR BEARING PR 14032 GR3, NIB

54" O.A.L. PRECISION BALL SCREW M-127

THOMSON ROUND LINEAR CASE SHAFT 25MMSOFTX1500MM?, NIB

THK CAM FOLLOWER CFH12MA / 350910 A NIB

THREAD CRAFT INC T-4073 COMMERCIAL BACKLASH BALL SCREW 50 OAL 2? DIA NIB

THOMSON ISO 9000 SUPER PILLOW BLOCK BEARING NIB SPB160PN

SAGINAW 31" LENGTH 3" DIAMETER SHAFT BALL SCREW, NO LABEL, SEE PHOTOS

LEAD SCREWS INTERNATIonAL 40" O.A.L. PRECISION BALL SCREW M447

THK 92" O.A.L. LINEAR MOTION SYSTEM YS 7F27

THREAD CRAFT INC T-6235 COMMERCIAL BACKLASH BALL SCREW 58 OAL 51 TRAV 2? DIA NIB

STAR 83.5" 28-HOLE LINEAR GUIDE RAIL 48-10-1608, RUST

94" O.A.L. PRECISION BALL SCREW C-246

DEUTSCHE STAR RUNNER BLOCK / ROLLER RAIL 1853-613-10, SEALED

20TH CENTURY MACHINE 120" O.A.L. PRECISION BALL SCREW FS-127920-2000

THOMSON A162536 LINEAR BALL BEARING, NNB

PRECISION BALL SCREW 74" O.A.L. FS127920-0800-1?268-02H1

GEORG FISCHER DOUBLE ACTING ACTUATOR 

LINEAR ROLLER BEARING LMUWF16

NUMATICCS, LINEAR ACTUATOR SH10606LB16DS3, K13409

PARKER PNEUMATIC ACUATOR VAVLE P5T-J063DHSN050 SEALED

THK KS PRECISION BALLSCREW 9D22

THK LINEAR GUIDE RAIL NIB SHS35C3SS+840L / UCG00264 101075

THK HSR55 LINEAR BLOCK BEARING

STAR LINEAR BEARING 067-20

THK LINEAR GUIDE BLOCK NIB HSR45CA1SSS(GK) 101815

DUFF-NORTON WORM GEAR ACTUATOR LM3704-57L W/ STEARNS BRAKE 1-055-511-04-BQ?F

THREAD CRAFT INC T-1161 COMMERCIAL BACKLASH BALL SCREW 40 OAL 37 TRAV 2? DIA NIB

40" O.A.L. PRECISION BALL SCREW 89988

PARKER ORIGA SYSTEM PLUS PNEUMATIC DRIVE CYLINDER P5P00000C500-03?353 102624

DR. JOHANNES HEIDENHAIN 1840MM LINEAR ENCODER 216 750 HL

BELOIT CORP. SCREW JACK 274815D051

LINMOT LINEAR GUIDE PS01-48X240 / 0150-1975 *PLUG*

NIPPON THOMPSON IKO LINEAR BEARING, LRW50 E71

HYTORK-130 ACTUATOR 120PSIG

FESTO 12 MM BORE, 270° ANGLE ROTARY ACTUATOR DSM-12-270-P-FW?-CC

REXROTH LINEAR SLIDE BEARING R182443110

INA LINEAR MOTION BEARING KH1026/P/PP

EMCOR 36" O.A.L. PRECISION BALL SCREW E-6428

INA LINEAR BEARING KH3050IPIPP

EMCOR E-6696 58" PRECISION BALL SCREW

EMCOR 42" O.A.L. PRECISION BALL SCREW C-066

PARKER ORIGA SYSTEM PNEUMATIC LINEAR DRIVE SYSTEM 102629

THK 171&11/16" O.A.L. 55 HOLE LINEAR GUIDE WAY RAIL W/ (2) IKO BEARING BLOCK

BELOIT CORP. 15-TON SCREW JACK 274817D023-0-00?4

ACCUGLIDE CG35CEAN LINEAR BLOCK BEARING, NIB

NB LINEAR BEARING TWA-16UU

26" O.A.L. PRECISION BALL SCREW 052243

THOMSON ACCUGLIDE RG25NL0260 348660-81 LINEAR RAIL, NNB

FESTO DGP LINEAR DRIVE DGP-40-1300PPVA?B-SL010179

THREAD CRAFT INC T-8310 COMMERCIAL BACKLASH BALL SCREW 50 OAL 44 TRAV NIB

STAR / REXROTH 1807-203-31 236MM LINEAR ROLLER GUIDE RAIL, NNB

STAR / REXROTH 1807-203-31 LINEAR ROLLER GUIDE RAIL, NNB

THREAD CRAFT 39.55" 1.5 DIAMETER PRECISION BALL SCREW T-4947

36.562" O.A.L. PRECISION BALL SCREW 80198 / C-160

THOMSON SAGINAW 17.5" PRECISION BALL SCREW A-5409

THREAD CRAFT INC T-1284 PRECISION PRELOADED BALL SCREW 41 OAL 38 TRAV NIB

BARNES INDUSTRIAL BWO35342 120694 25?" BALLSCREW, NIB

PRECISION BALL SCREW 70260 NIB

THREAD CRAFT PRECISION BALL SCREW ?-16988

BELOIT CORP. SCREW JACK 274822D026

42" O.A.L. PRECISION BALL SCREW C-270

48" O.A.L. PRECISION BALL SCREW A-60292

STAR / REXROTH 1807-203-31 356MM LINEAR ROLLER GUIDE RAIL, NIB

THREAD CRAFT INC T-2569 COMMERCIAL BACKLASH BALL SCREW 38 OAL 30 TRAV NIB

THK LINEAR GUIDE RAIL NIB SHS-800L(GK) / UCG02891 101077

44'' LINEAR GUIDE RAIL

THOMSON INDUSTRIES, INC SUPERSLIDE SYSTEMS POSITIonING SLIDE, 37" OAL; 32" TRAV

REXROTH STAR RUNNER BLOCK/ BALL RAIL 1623-214-20 NIB

THOMPSON SUPER 24 BALL BEARING LINEAR BUSHING NIB

20TH CENTURY MACHINE 104" O.A.L. PRECISION BALL SCREW FS127920-1600

DAYTRonIC LINEAR SENSOR DS6000A

THREAD CRAFT INC T-4013 COMMERCIAL BACKLASH BALL SCREW 38 OAL 29 TRAV NIB

THREAD CRAFT INC T-5736 COMMERCIAL BACKLASH BALL SCREW 48? OAL 45? TRAV NIB

CAIPO DIS 10292 35 X 30 SCREW ACTUATOR

BELOIT CORP. SCREW JACK 274817D023-0-00?5

THREAD CRAFT T7425 74" O.A.L. PRECISION BALL SCREW CP#2.25X500x74

THREAD CRAFT INC T-1526 COMMERCIAL BACKLASH BALL SCREW 49 OAL 42 TRAV NIB

THREAD CRAFT INC T-6235 COMMERCIAL BACKLASH BALL SCREW 49 OAL 42 TRAV NIB

1244.5MM O.A.L. PRECISION BALL SCREW C-264

IKO 13-HOLE LINEAR GUIDE RAILWAY LWH 55 101018

IAI SINGLE AXIS ROBOT LINEAR ACTUATOR ISA-SXM-0-0-100?0-AQ

EMCOR 47.812" O.A.L. PRECISION BALL SCREW E-6630

FESTO 63MM BORE 500MM STROKE LINEAR DRIVE DGP-63-500-PPVA?-B

HEIDENHAIN 620MM, LINEAR SCALE LS 704

TEMPOSonIC R SERIES LINEAR-POSITION SENSOR RHT0065UD601V01

INGERSOLL-RAND ARO 1/4 TON SERIES 7700 ROLLER CHAIN HOIST 7718E-2C10-C6S

INGERSOLL-RAND ARO 1/4 TON SERIES 7700 ROLLER CHAIN HOIST 7718E-2C10-K6

IDEAL .69-1.25D, SAE SIZE 12, CLAMP 62M12, BOX OF 10 *NEW*

AEROQUIP HOSE CUT OFF MACHINE S1104-2-1

TSUBAKI 3/4" PITCH 10FT RIVETED ROLLER CHAIN, NO. 60 *NEW*

CAMPBELL 1/4" (6MM) WIRE ROPE CLIPS, B7670439 *NEW LOT OF 5*

GALVANIZED WIRE ROPE CABLE, 3/8" 7 X 19, PARTIAL ROLL

CREFORM 200 X 42 SWIVEL CASTER W/ STOP & POLYURETHANE WHEEL, J-200S, LOT OF 2