Modicon*康 AS-B846-002
4內(nèi)存容量 :
PLC內(nèi)存有用戶及系統(tǒng)兩大部分。用戶內(nèi)存主要用以存儲(chǔ)用戶程序,個(gè)別的還將其中的一部分劃為系統(tǒng)所用。系統(tǒng)內(nèi)存是與CPU配置在一起的。CPU既要具備訪問(wèn)這些內(nèi)存的能力,還應(yīng)提供相應(yīng)的存儲(chǔ)介質(zhì)。
用戶內(nèi)存大小與可存儲(chǔ)的用戶程序量有關(guān)。內(nèi)存大,可存儲(chǔ)的程序量大,也就可進(jìn)行更為復(fù)雜的控制。從發(fā)展趨勢(shì)看,內(nèi)存容量總是在不斷增大著。大型PLC的內(nèi)存容量可達(dá)幾十k,以至于一百多k。系統(tǒng)內(nèi)存對(duì)于用戶,主要體現(xiàn)在PLC能提供多少內(nèi)部器件。不同的內(nèi)部器件占據(jù)系統(tǒng)內(nèi)存的不同區(qū)域。在物理上并無(wú)這些器件,僅僅為RAM。但通過(guò)運(yùn)行程序進(jìn)行使用時(shí),給使用者提供的卻實(shí)實(shí)在在有這些器件。
內(nèi)存器件種類(lèi)越多,數(shù)量越多,越便于PLC進(jìn)行種種邏輯量及模擬控制。它也是代表 PLC性能的重要指標(biāo)。
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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
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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
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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
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THK HSR55 LINEAR BLOCK BEARING
STAR LINEAR BEARING 067-20
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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
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REXROTH LINEAR SLIDE BEARING R182443110
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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
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THOMSON ACCUGLIDE RG25NL0260 348660-81 LINEAR RAIL, NNB
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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
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THREAD CRAFT PRECISION BALL SCREW ?-16988
BELOIT CORP. SCREW JACK 274822D026
42" O.A.L. PRECISION BALL SCREW C-270
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STAR / REXROTH 1807-203-31 356MM LINEAR ROLLER GUIDE RAIL, NIB
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44'' LINEAR GUIDE RAIL
THOMSON INDUSTRIES, INC SUPERSLIDE SYSTEMS POSITIonING SLIDE, 37" OAL; 32" TRAV
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DAYTRonIC LINEAR SENSOR DS6000A
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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
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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
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IAI SINGLE AXIS ROBOT LINEAR ACTUATOR ISA-SXM-0-0-100?0-AQ
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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