AB 1746-N2B
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,故人們仍習慣地用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,用以在其內部存儲執(zhí)行邏輯運算、順序控制、定時/計數和算術運算等操作指令,并通過數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過程。PLC是微機技術與傳統(tǒng)的繼電接觸控制技術相結合的產物,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的簡單指令形式,使用戶程序編制形象、直觀、方便易學;調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,用來在其內部存儲執(zhí)行邏輯運算、順序控制、定時、計數和算術運算等操作的指令,并通過數字的,模擬的輸入和輸出,控制各種類型的機械或生產過程??删幊绦蚩刂破骷捌溆嘘P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。
廈門莫格電氣自動化有限公司
:張 美 霞
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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
BUDGIT 1/4 TON ELECTRIC CHAIN HOIST 11689769 / G606-6R
BLACK ConVEYOR BELT, 57-1/2" WIDTH, 1/4" THICK, APPROX. 120' LONG
CM BIG ORANGE 1/8" WIRE ROPE CLIPS 2G804, LOT OF 4 *NEW*
REX 5FT MAT TOP CHAIN LF5936-12 *NEW*