過去一段時(shí)間，一些學(xué)者和廠商把DCS和FCS對(duì)立起來。其實(shí)，真正推動(dòng)FCS進(jìn)步的仍然是世界主要幾家DCS廠商。所以，DCS不會(huì)被FCS所代替，而是DCS會(huì)包容FCS，實(shí)現(xiàn)真正的DCS。如今，這一預(yù)測正在被現(xiàn)實(shí)所驗(yàn)證。所有的第四代DCS都包含了各種形式的現(xiàn)場總線接口，可以支持多種標(biāo)準(zhǔn)的現(xiàn)場總線儀表、執(zhí)行機(jī)構(gòu)等。此外，各DCS還改變了原來機(jī)柜架式安裝I/O模件、相對(duì)集中的控制站結(jié)構(gòu)，取而代之的是進(jìn)一步分散的I/O模塊（導(dǎo)軌安裝），或小型化的I/O組件（可以現(xiàn)場安裝）或中小型的PLC。  

分布式控制的一個(gè)重要優(yōu)點(diǎn)是邏輯分割，工程師可以方便地把不同設(shè)備的控制功能按設(shè)備分配到不同的合適控制單元上，這樣操作工可以根據(jù)需要對(duì)單個(gè)控制單元進(jìn)行模塊化的功能修改、下裝和調(diào)試。另一個(gè)優(yōu)點(diǎn)是，各個(gè)控制單元分布安裝在被控設(shè)備附近，既節(jié)省電纜，又可以提高該設(shè)備的控制速度。一些DCS還包括分布式HMI就地操作站，人和機(jī)器將有機(jī)地融合在一起，共同完成一個(gè)智能化工廠的各種操作。例如Emerson 的DeltaV、Foxboro 的A2中的小模塊結(jié)構(gòu)、Ovation的分散模塊結(jié)構(gòu)等。  ?

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產(chǎn)品全新原裝，庫存現(xiàn)貨，質(zhì)量的保障，優(yōu)質(zhì)的服務(wù)，誠摯的態(tài)度，攜程為您服務(wù)。

售出產(chǎn)品質(zhì)保一年，15天有質(zhì)量問題包退換，全國順豐包郵 ，

哲訊與您同在，任何問題溝通都不是問題，致力用最低的價(jià)格和優(yōu)勢(shì)的品質(zhì)保障，誠信和您共同拿下用戶的單子

｝

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金品質(zhì)，你選擇， 品質(zhì)超群惠選廈門哲訊電氣自動(dòng)化，

誠信經(jīng)營，質(zhì)量為首，誠信至上，竭誠為您服務(wù)！

對(duì)待客戶，我們是認(rèn)真的。

 

 【誠信經(jīng)營】【質(zhì)量可靠】【進(jìn)口原裝】【拆包防偽】

  

 【大量庫存】【當(dāng)天付款】【順豐速運(yùn)】【歡迎搶購】

  

Applied Materials DPS Poly 200mm 2 Chamber Centura

 

Applied Materials DPS Poly 200mm 3 Chamber Centura

 

NEMIC-LAMBDA EWS25-5 POWER SUPPLY

 

NEMIC-LAMBDA EWS150-24 POWER SUPPLY

 

VEXTA 5-PHASE DRIVER DFU1514-A3

 

CLIPPARD R-333 MINIMATIC 3-WAY DELAY VALVE NEW IN BOX

 

CLIPPARD R461 4-WAY VALVE NEW IN BOX

 

THK BTK1404-3.6ZZ STANDARD ROLLED BALL SCREW NEW

 

Berg Hex Socket HD Shoulder S/S 3/16 Screw Lot of 8

 

NEMIC-LAMBDA EWS15-5 POWER SUPPLY

 

CONDOR GSC20-12 DC POWER SUPPLY NEW

 

COSEL 24V POWER SUPPLY P30-24

 

AMAT 0040-45933 ASSY BALL TRANSFER SCREW

 

COSEL PAA150F-5 AC POWER SUPPLY

 

NEMIC-LAMBDA JWS150-15/A POWER SUPPLY

 

Swagelok Pat'd QC4-KEY 7, Quick Connect, NEW

 

DETECTOR ASSY, LEFT FAST WAFER MAPPING AMAT 0010-76859

 

DETECTOR ASSY, RIGHT FAST WAFER MAPPING AMAT 0010-76858

 

Oregon Micro Systems VS4 (OMS) VME PCB

 

AMAT 0190-76005 NEW TESTED OMS VMEX SPEC CNTL DWG, INTELLIGENT MOTOR CONTROL PCB

 

ASSY PCB, CHAMBER POWER DISTRIBUTION AMAT 0100-13026, 0100-35060

 

Applied Materials Synergy V452 VME SBC AMAT 0090-03467, 0090-76133, 0090-04116

 

BALL SCREW ASSY, LEFT HAND, SPEC CONTROLLED AMAT 0190-75073

 

PCB ASSY, OPTO SWITCH AMAT 0100-09042

 

Ultralynn Diffusor 6-97202-14

Cover Fan Universal Lift , AMAT 0040-46716

 

300MM LIFT RING Applied Materials AMAT 0020-46322

 

Lam Research Ceramic Ring 4014864-0001

 

Lam Research RING, FOCUS, MAJOR FLAT, ESC 716-028249-066

 

GAS DISTR. PLATE SPUTTER, AMAT 0020-09933

 

Bay Voltex Chiller Model: LT-HRE-1650-485?0-DI AMAT Applied Materials

 

DEVICENET DIP297 ISOLATED POWER ADAPTER

 

SENSOR FBR-OPTIC THRU-BEAM TEFLON COAT 1400-00251

 

MATROX ELECTRONICS SYSTEMS STD-2480-AS

 

Bay Voltex Chiller Model: LT-HRE-1650-485?0-DI Tested/Working AMAT

 

CKD VALVE HYBRID PNEU 2PORT 1-1/8 SURFACE-MOUNT W/ MANUAL AMAT 3870-04192

 

VERIFLO RGLTR ASSY PRESS 0-30PSI OUT 0-100SLM 5R 45800978-1 AMAT 3800-00063

 

MOTOROLA ETHERNET 100BASE T NETWORK 84-W8108F01D

 

AXIAL FAN 120MM 115VAC 260mA MC19683

 

AMAT ASSY, UPA DC DISTRIBUTION BOX, CONTOUR 3 P/N 0010-27688

 

FUJIKIN VALVE AJ1LW000 091455 K-FSR-T-20-6. 35UGF-ATF

 

BROOKS INSTRUMENT PCB BM23475L06R

 

FESTO CPV-10-V1 PNEUMATIC MANIFOLD W/ DNET8 (CPV10-V1-P8-M7?-AMA-SA) 183643 valve

 

Noah Precision Chiller Model 2020

 

HAM-LET UCV HMS20 4VKC REV A AMAT 3870-03343

 

FUJIKIN VALVE ANJNG000 new 401181 O.P 0.4~0.6 Mpa

 

Swagelok 6L-FV4B-FR4-VR4 Vertical Flow Sensor, 1/4" VCR

 

FUJIKIN VALVE ANNTU000 439225 O.P 0.45~0.6 Mpa N.C.

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