136703-01本特利

136703-01本特利

  可編程序控制器，英文稱Programmable Controller，簡稱PC。但由于PC容易和個人計算機（Personal Computer）混淆，故人們?nèi)粤晳T地用PLC作為可編程序控制器的縮寫。它是一個以微處理器為核心的數(shù)字運算操作的電子系統(tǒng)裝置，專為在工業(yè)現(xiàn)場應用而設計，它采用可編程序的存儲器，用以在其內(nèi)部存儲執(zhí)行邏輯運算、順序控制、定時/計數(shù)和算術(shù)運算等操作指令，并通過數(shù)字式或模擬式的輸入、輸出接口，控制各種類型的機械或生產(chǎn)過程

廈門莫格電氣自動化有限公司

 ：張 美 霞
      ： 
      
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  PLC是微機技術(shù)與傳統(tǒng)的繼電接觸控制技術(shù)相結(jié)合的產(chǎn)物，它克服了繼電接觸控制系統(tǒng)中的機械觸點的接線復雜、可靠性低、功耗高、通用性和靈活性差的缺點，充分利用了微處理器的優(yōu)點，又照顧到現(xiàn)場電氣操作維修人員的技能與習慣，特別是PLC的程序編制，不需要專門的計算機編程語言知識，而是采用了一套以繼電器梯形圖為基礎(chǔ)的簡單指令形式，使用戶程序編制形象、直觀、方便易學；調(diào)試與查錯也都很方便。用戶在購到所需的PLC后，只需按說明書的提示，做少量的接線和簡易的用戶程序編制工作，就可靈活方便地將PLC應用于生產(chǎn)實踐。

可編程序控制器一直在發(fā)展中，所以至今尚未對其下zui后的定義。電工學會（IEC）曾先后于1982.11；1985.1和1987.2發(fā)布了可編程序控制器標準草案的*，二，三稿。

在第三稿中，對PLC作了如下定義：可編程序控制器是一種數(shù)字運算操作電子系統(tǒng)，專為在工業(yè)環(huán)境下應用而設計。它采用了可編程序的存儲器，用來在其內(nèi)部存儲執(zhí)行邏輯運算、順序控制、定時、計數(shù)和算術(shù)運算等操作的指令，并通過數(shù)字的，模擬的輸入和輸出，控制各種類型的機械或生產(chǎn)過程?？删幊绦蚩刂破骷捌溆嘘P(guān)的外圍設備，都應按易于與工業(yè)控制系統(tǒng)形成一個整體、易于擴充其功能的原則設計。

定義強調(diào)了PLC是：1 數(shù)字運算操作的電子系統(tǒng)——也是一種計算機

                  2 專為在工業(yè)環(huán)境下應用而設計

                  3 面向用戶指令——編程方便

                  4 邏輯運算、順序控制、定時計算和算術(shù)操作

                  5 數(shù)字量或模擬量輸入輸出控制

                  6 易與控制系統(tǒng)聯(lián)成一體

                  7 易于擴充

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