3500/32 3500/32本特利

3500/32本特利

PLC的发展历程

    在工业生产过程中，大量的开关量顺序控制，它按照逻辑条件进行顺序动作，并按照逻辑关系进行连锁保护动作的控制，及大量离散量的数据采集。传统上，这些功能是通过气动或电气控制系统来实现的。1968年美国GM（通用汽车）公司提出取代继电气控制装置的要求，第二年，美国数字公司研制出了基于集成电路和电子技术的控制装置，首次采用程序化的手段应用于电气控制，这就是*代可编程序控制器，称Programmable Controller（PC）。

    个人计算机（简称PC）发展起来后，为了方便，也为了反映可编程控制器的功能特点，可编程序控制器定名为Programmable Logic Controller（PLC），现在，仍常常将PLC简称PC。

    PLC的定义有许多种。国际电工委员会（IEC）对PLC的定义是：可编程控制器是一种数字运算操作的电子系统，专为在工业环境下应用而设计。它采用可编程序的存贮器，用来在其内部存贮执行逻辑运算、顺序控制、定时、计数和算术运算等操作的指令，并通过数字的、模拟的输入和输出，控制各种类型的机械或生产过程。可编程序控制器及其有关设备，都应按易于与工业控制系统形成一个整体，易于扩充其功能的原则设计。

厦门莫格电气自动化有限公司

：张美霞

电  话：/  

传  真：

地  址: 厦门市思明区槟榔西里197号第四层B19单元

http://www.mogget。。ｃｎ/

上世纪80年代至90年代中期，是PLC发展zui快的时期，年增长率一直保持为30~40%。在这时期，PLC在处理模拟量能力、数字运算能力、人机接口能力和网络能力得到大幅度提高，PLC逐渐进入过程控制领域，在某些应用上取代了在过程控制领域处于统治地位的DCS系统。

    PLC具有通用性强、使用方便、适应面广、可靠性高、抗干扰能力强、编程简单等特点。PLC在工业自动化控制特别是顺序控制中的地位，在可预见的将来，是无法取代的。　

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