描述

AO3481

衡量一套控制系統(tǒng)的總體成本，不僅考慮其造價(jià)，而且應(yīng)該考察系統(tǒng)從安裝調(diào)試到運(yùn)行維護(hù)整個(gè)生命周期內(nèi)總投入。相對(duì)DCS而言，F(xiàn)CS開(kāi)放的體系結(jié)構(gòu)和OEM技術(shù)將大大縮短開(kāi)發(fā)周期，降低開(kāi)發(fā)成本，且徹底分散的分布式結(jié)構(gòu)將1對(duì)1模擬信號(hào)傳輸方 式變?yōu)?對(duì)N的數(shù)字信號(hào)傳輸方式，節(jié)省了模擬信號(hào)傳輸過(guò)程中大量的A/D、D/A轉(zhuǎn)換裝置、布線安裝成本和維護(hù)費(fèi)用。因此從總體上來(lái)看，F(xiàn)CS的成本大大低于DCS的成本。可以說(shuō)，開(kāi)放性、分散化和低成本是現(xiàn)場(chǎng)總線最顯著的三大特征，它的出現(xiàn)將使傳統(tǒng)的自動(dòng)控制系統(tǒng)產(chǎn)生劃時(shí)代的變革，這場(chǎng)變革的深度和廣度將超過(guò)歷史上任何一次變革，必將開(kāi)創(chuàng)自動(dòng)控制的新紀(jì)元。場(chǎng)總線發(fā)展迅速，現(xiàn)處于群雄并起、百家爭(zhēng)鳴的階段。目前已開(kāi)發(fā)出有40多種現(xiàn)場(chǎng)總線，如Interbus、Bitbus、DeviceNet、MODbus、Arcnet、P-Net、FIP、ISP等，其中最具影響力的有5種，分別是FF、Profitbus、HART、CAN和LonWorks（性能對(duì)照見(jiàn)表1）
FF（Foundation Fieldbus現(xiàn)場(chǎng)基金會(huì)總線）由美國(guó)儀器協(xié)會(huì)（ISA）1994推出，代表公司有Honeywell和Fisher-Rosemount，主要應(yīng)用于石油化工、連續(xù)工業(yè)過(guò)程控制中的儀表。FF的特色是其通訊協(xié)議在ISO的OSI物理層、數(shù)據(jù)鏈路層和應(yīng)用層3層之上附加了用戶層，通過(guò)對(duì)象字典OD（Object Dictionary）和設(shè)備描述語(yǔ)言DDL（Device Description Language）實(shí)現(xiàn)可互操作性。目前基于FF的現(xiàn)場(chǎng)總線產(chǎn)品有，美國(guó)Smar公司生產(chǎn)的壓力溫度變送器，Honeyweill&Rockweill 推出的ProcessLogix系統(tǒng)，F(xiàn)isher-Rosemount推出的PlantWeb。線形、星形、環(huán)形等，通訊介質(zhì)不受限制，可用雙絞線、電力線、無(wú)線、紅外線等各種形式。FCS形成的Infranet控制網(wǎng)很容易與Intranet企業(yè)內(nèi)部網(wǎng)和Internet全球信息網(wǎng)互連，構(gòu)成一個(gè)完整的企業(yè) 網(wǎng)絡(luò)三級(jí)體系結(jié)構(gòu)。

產(chǎn)品承諾：
保?證?全新原裝進(jìn)口,
保?證?安全準(zhǔn)時(shí)發(fā)貨，
保?證售后服務(wù)質(zhì)量，
優(yōu)勢(shì)價(jià)格，大量現(xiàn)貨。

主營(yíng)DCS系統(tǒng)配件
機(jī)器人系統(tǒng)配件
大型伺服系統(tǒng)配件
品牌：ABB???,AB??,GE,FOXBORO,本特利，英維思，伍德沃德，西屋，瑞恩，施耐德，西門子，摩托羅拉，安川。力士樂(lè)。ACSO，橫河等進(jìn)口品牌。Triconex?Siemens?Yaskawa?ABB?GE?Ovation?AB?Foxboro?Motorola?Schneider?XYCOM?KUKA

AC LINE FILTER, TRI-MAG.Inc. SF-1579 – REFURBISHED

CONTROLLER NOVELLUS 270019800 – REFURBISHED

CONTROLLER NOVELLUS 27017400 – REFURBISHED

HV GATE VALVE VAT DN100 PNEUMATIC SERIES 14

POWER SUPPLY ASTEC LPS 252 – REFURBISHED

PRINTED CIRCUIT BOARD, AMAT 0100-09099 – REFURBISHED

PRINTED CIRCUIT BOARD, AMAT 0100-35180 – REFURBISHED

PRINTED CIRCUIT BOARD, AMAT 0100-76258 REV. B

TRANSDUCER VIATRAN 376 – NEW

VACUUM VALVE, MKS 253B-2-50-2, Exhaust throtte valve

VACUUM VALVE, MKS, Exhaust throtte valve, KF50

VACUUM GAUGE CONTROLLER GRANVILLE-PHILL?IPS 375

STYLET FASTPOINT FX-439 DELUXE 707-439-00-02

SET OF 3 VIEWPORTS 716-011533-001 – NEW

PRINTED CIRCUIT BOARD APPLIED MATERIALS 0100-0953 REV.C

POWER SUPPLY APPLIED MATERIALS 0010-09181

FILTER ENTEGRIS WGFG01RH2 WAFERGARD – NEW

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AIR BLOWER ASML 4022.436.2563 3D – REFURBISHED

Osaka Vacuum TG370M Turbopump / Pompe turbo UNTESTED

INVERTER APC UPS MATRIX 3000 – REFURBISHED

TRACOPOWER TSL240-124 POWER SUPPLY – TESTED

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FLOWMETER DWYER INSTRUMENTS VFA-25-SSV – REFURBISHED

FLOWMETER DWYER INSTRUMENTS VFC-131 – REFURBISHED

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TURBOMOLECULAR PUMP ALCATEL ATP 150 – NEW

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VACUUM MANOMETER TYLAN CMLB-21 (100 Torr) – REFURBISHED

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UTI, ASSY Console QualiTorr Remote QTRT P/N: 05801

UTI QualiTorr Remote, Vac System Controller, 05506-2000

ALCATEL MANOMETER CN111 85407 – REFURBISHED

ELECTRONIC BOARD – TESTED

PRECISION BALL SCREW W1205KA-3P-C5Z P/N:07H9-0014 – NEW

LEYBOLD RUVAC WS501 PFPE US ROOTS VACUUM PUMP -PN 91737

PROCESS-KIT AMAT DCVD-LH 6″ TEOS – REFURBISHED

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GAS RING SMALL HOLES&CHANNELS – NEW

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SVG 8836 HOT PLATE – REFURBISHED

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ROBOT SVG 88 ROBOT ARM (little arm) – REFURBISHED

ROBOT SVG 88 LOADER – REFURBISHED

MOTION CONTROLLER PACIFIC SCIENTIFIC SC453

RING,WAFER LIFT RP 0020-09844/0020?-09183 – NEW

PLATE QUARTZ DIST UPPER ASP – REFURBISHED

DOOR, SLIT VALVE, “S” – NEW

SET OF 2: PLATE, CAM SLIT VALVE – NEW

PRINTED CIRCUIT BOARD AMAT 0100-00011 CHOPPER DRIVE

COATED THERMOCOUPLE (8.5″ Lg) W – NEW

POWER SUPPLY POWER ONE HD24-4.8-A SET OF TWO IDENTICALS

VALVE CONTROLLER VACUUM GENERAL AC-2 ADAPTORR

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VALVE CONTROLLER TYLAN AdapTorr AC-2S06 – REFURBISHED

THROTTLE VALVE TYLAN MDVX-100BS11 – REFURBISHED

THROTTLE VALVE VACUUM GENERAL MDV-100B – REFURBISHED

SET OF TERMINAL UNITS BECKHOFF – NEW

SMC SOLENOID VALVE MANIFOLD – USED

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RF SWITCH HUTTINGER ELEKTRONIK 1500A – REFURBISHED

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GAS DIST.PLATE,101 HOLES APPLIED MATERIALS – NEW
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SET OF 14 SWILL COOLDOWN PEDESTAL WAFER SUP – NEW

SET OF 39 SHAFT CLAMP WALKING BEAM PN 0021-79131 – NEW

SET OF 6 SENSOR STEM 6″TITAN HEAD P/N: 0021-77458 – NEW

SET OF 5 SENSOR PLATES – PN 0021-79994 – NEW

SET OF 13 SEAL LIP FLG 625ID – PN 3700-02893 -NEW

SET OF 18 SCR CAP SKT/SLOT 0190-77220 – NEW

SET OF 2 PIN CAP – PN 0021-77267 – NEW

SET OF 3 KAPTON PAD QUARTZ BLADE 300MM PN 0020-15950

SET OF 17 ORING ID 10.178 CDS.112.SILICON?E 3700-02952

SET OF 9 CAP BEARINGS 300MM ROBOT AMAT P/N: 0020-06885

0010-14390 AMAT BRUSH MODULE EXTENDED ROLLER- NEW

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ALCATEL PTM5101 TURBO CERAMIC PUMP – REFURBISHED

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VALVE VERIFLO 944L. NEW

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90 DEGREES VACUUM ELBOW ISO100-KF – REFURBISHED

90 DEGREES VACUUM ELBOW ISO160-KF – REFURBISHED

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VALVE VERIFLO 928L. NEW

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VALVE RK INDUSTRIES TDD-1002-T1. NEW FAB SURPLUS

VACUUM PARTS FLEXIBLE NIPPLE – NEW
A&N CORPORATION P/N: LF63-300-F

VACUUM PARTS BELLOW V4 – NEW

VACCUM CAPACITOR 20-500PF 15KV. REFURBISHED

UPPER ARM 200 MM – NEW

SET OF 5 FLANGE BALL BEARING SFR188SSW- NEW

ROPLAT PAWL HARD STOP. NEW FAB SURPLUS

PRESSURE REDUCING GAUGE VERIFLO PARKER NPR73530W4PXFSM

MIROIR PLAN FOR LASER EXERCICE – NEW
CVI LASER CORPORATION P/N: KRF-3050-45-P

KALREZ O-RING ORNG082E00299 – NEW

HOLDER, 8” WAFER – NEW FAB SURPLUS

DC MOTOR ASS AG-SCHWEIZ 84031-R1 – REFURBISHED

CONVERSION SET 3200251 TO 3200409 – NEW FAB SURPLUS

CABLE FOUR CASSETTE SHIFFTER. NEW FAB SURPLUS

CABLE ASSY ROTARY DRIVE ENCODER. REFURBISHED

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90 DEGREES VACUUM ELBOW ISO63-KF – REFURBISHED

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MASS FLOW CONTROLLER UNIT UFC-1100 Gas:O2 Range:100Sccm

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SIC RING E55539 – NEW

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THERMOELEMENT BALZERS – USED

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PRESSURE REGULATOR MANOMETER AIR LIQUIDE DIRS N°6

HIGH PRESSURE REGULATOR TESCOM 44-226X-242 – set of 2

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CROSS ISOLATION VACUUM NOR-CAL 3870-01212 – REFURBISHED

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RSV 151 B – ROOTS VACUUM PUMP

RSV350 – ROOTS VACUUM PUMP

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TEMPRESS BOARD CONVECTOR DTC PN 910011- NEW

TEMPRESS BOARD PRE AMP RH 13% DTC P/N:910088 – NEW

SET OF 4 TEMPRESS JOURNAL ASSY CENTR SJ-34-SP PN R03005

APPLIED MATERIALS 0100-09127 PCB ASSY – TESTED

BROOKS AUTOMATION TIC-D64LC- PCB ASSY 921062 – TESTED

BROOKS AUTOMATION TIC-DEVN PCB ASSY 921-068 – WARRANTED

MAIN AC INTERCONNECT PCB ASSY 0100-00591 – TESTED

NEMIC-LAMBDA EWS300-24 PCB ASSY – REFURBISHED

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SET OF 10 AMAT SEAL LIP – PN 3700-02884 – NEW

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SET OF 3 SEALING AIR RING FOR BRUSH CLEA – NEW
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EXHAUST PIPE KF 40 VALVE COATED TEMPRESS 507049 – NEW

TEMPRESS FILTER WG2F / PN F06001 – NEW

MOTION CONTROLLER MAYR PN 105167 – REFURBISHED

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REMOTE DIGITAL 16CHANNEL OPTO22 G4D16R / G4REG / G4ODC5

REMOTE DIGITAL 16CHANNEL OPTO22 G4D16R / G4REG / G4IDC5

REMOTE ANALOG 8 CHANNEL OPTO22 G4A8R / G4REG

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AMAT PYROMETER P/N: 0010-18024W – REFURBISHED

SET OF 3 ASSY SENSORS EESV3 – PN 0100-77026 – NEW

SET OF 9 MEMBRANE 8″ ELR, P/N: 0020-79584 – NEW

SET OF 5 STRAP FILAMENT (sce pi/qt/xr)- PN 0020-86731

SET OF 7 TEFLON GASKET AMAT – PN 0020-83092 – NEW

SET OF 7 INSULATOR CAP AMAT P/N: 0020-18441 – NEW

MOTOR ASSEMBLY HEADWAY RESEARCH EC101 PN 9-05198 – NEW

DIGITAL PROCESS INDICATOR LONDON ELECTRONIC SYSTEM LTD

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SIERRACINE/MAGN?EDYNE MAGNET DRIVE 1100-0051-00 – TESTED

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ALCATEL DE OIL FILTER / TESTED

ALCATEL DE OIL FILTER / TESTED /

ALCATEL OIL FILTER – REFURBISHED

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CTI ON-BOARD WATERPUMP PN 8120949G001- REFURBISHED

DIAPHRAGM VACUUM PUMP VARIAN MD 4V – TESTED

ELECTROSTATIC FIELDMETER ION SYSTEMS 775PSV – TESTED

ELECTROSTATIC FIELDMETER ION SYSTEMS 775PSV – NEW

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EXHAUST FILTER LEYBOLD AF4-8 – PN 189 06 – REFURBISHED

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HV GATE VALVE VAT F12-70565-02 – TESTED

MASS FLOW CONTROLLER TYLAN FC280 Gas:H2 Range:300Sccm

PRECISION TEMPERATURE CONTROLLER EUROTHERM 2108i

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LECTRONIC TRANSMITTER METER