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1756-OF6VI
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廈仲仲鑫達(dá)自動(dòng)化設(shè)備有限公司
聯(lián)系人：陳如（銷售工程師）
電話：0592-5085329
手機(jī)：18030132586
傳真：0592-5165561(陳工）
郵箱：1151195663@qq.com
qq:1151195663
廈門市思明區(qū)湖濱東路湖光大廈8樓A座
一般來(lái)講，控制系統(tǒng)網(wǎng)絡(luò)可分為3層：信息層、控制層和設(shè)備層(傳感/執(zhí)行層)。傳統(tǒng)的控制系統(tǒng)在信息層大都采用以太網(wǎng)，而在控制層和設(shè)備層一般采用不同的現(xiàn)場(chǎng)總線或其他專用網(wǎng)絡(luò)。目前，以太網(wǎng)已經(jīng)滲透到了控制層和設(shè)備層，很多的PLC和遠(yuǎn)程I/O供應(yīng)商都能提供支持TCP/IP的以太網(wǎng)接口的產(chǎn)品。以太網(wǎng)之所以給自動(dòng)化市場(chǎng)帶來(lái)風(fēng)暴式的革命，主要有3個(gè)原因：低成本的刺激和速度的提高；現(xiàn)代企業(yè)對(duì)實(shí)時(shí)生產(chǎn)信息有越來(lái)越多的要求；以太網(wǎng)的開放性和兼容性。
早期的以太網(wǎng)，多節(jié)點(diǎn)共享同一個(gè)傳輸媒體，稱為共享以太網(wǎng)(Shared Ethernet)，節(jié)點(diǎn)間通信采用廣播方式，易發(fā)生沖突。共享以太網(wǎng)用CSMA/CD技術(shù)來(lái)避免沖突，即發(fā)送方檢測(cè)到?jīng)_突就暫停發(fā)送，隨機(jī)延遲一段時(shí)間后再重新發(fā)送直到成功。由于延遲時(shí)間是隨機(jī)的，不能事先知道，因而共享以太網(wǎng)的時(shí)間響應(yīng)具有不確定性，不能用于強(qiáng)實(shí)時(shí)性場(chǎng)合。
交換以太網(wǎng)(Switched Ethernet)的出現(xiàn)克服了這一缺點(diǎn)，以太網(wǎng)的交換機(jī)(Switch)是數(shù)據(jù)鏈路層(ISO/OSI參考模型第二層)的多端口網(wǎng)橋，也可以說(shuō)是智能分配器。交換機(jī)將其管理的網(wǎng)絡(luò)以星型拓?fù)浣Y(jié)構(gòu)劃分為許多物理上互相隔離而邏輯上互相聯(lián)系的節(jié)點(diǎn)，每一節(jié)點(diǎn)單獨(dú)與交換機(jī)建立物理連接，在通信的時(shí)候交換機(jī)會(huì)在發(fā)送端口與接受端口間建立一個(gè)獨(dú)占的全雙工通道，它具有以太網(wǎng)的全部帶寬并避免沖突。
American Standard WSM Circuit Board Module 6400-1065-01
Topaz P6 Gate Driver Board PCBA 09040-0305
Schneider TSX Quantum Digital Output Module 140DDO84300
Chemline Plastics Globe Valve 1" 98L00174F
Foxboro Interface Contact Module DM400YL-0G
General Electric Auxiliary Relay 12HAA13A1A
Foxboro Voltage Converter Module 2AI-N2V+SLW
ABB Input Protection Board NINP-61
Ashcroft Snap Action Temperature Switch T424T15-030
Schneider 115 VAC Output Module 140 DAO 842 10
Schlumberger Pressure Regulator 1-1/2" B38R
SNT S 1/7 Speed Reducer RMI63 / RMI 63
ABB Bailey Controls Bus Monitor 6637830A1
SNT S 1/7 Speed Reducer RI63 / RI 63
Parker Solenoid Valve H22WXBBL53A
Ashcroft Temperature Switch T432TS040 XNH
Dresser / Nil-Cor Valve Butterfly 8"-300VANE
Ace Controls Shock Absorber A 1-1/2" x 2"
GEA Tuchenhagen DL Separate Lifting Actuator and components
Bently Nevada Velocity Seismoprobe Sensor 26862-03-12
Parker Parflex Hydraulic Hose Twin 550H-12
American Standard Control circuit Board 6400-1065-01
ABB Stromberg Keyboard ULMA-KB2/A 57298821
Foxboro Spec 200 Indicator 210S-1 ST C
Square D Industrial Control Transformer 9070EL2D5
Allen-Bradley Analog Output Module 1771-OFE2/B
Penn Johnson Controls Lubrication Protection P45NCA-46
Dodge Taper Lock Bushing 3020 x 15/16 117101
ABB Optical Fiber Cable 3AU291001B14
Dodge Bearing Flange F4B-SCAH-100 or F4BSCAH100
Flex Pression SS Flexible Hose Assy 1/8" NPT x 100"
JCS PFA Lined Reducing Filler 1-1/2" x 3/4"
Thomas & Betts Straight Fitting 5336 1-1/2" (Lot of 5)
Gould Shawmut Time Delay Fuse TRS70R (Lot of 4)
Flex Pression SS Flexible Hose Assy 1/4" x 70"
Flex Pression SS Flexible Hose Assy 1/8" NPT x 98"
Resistoflex PFA Lined Reducing Filler Flange 1"x 3/4"
SKF Seal Ring LOR 54 ( Lot of 2)
Gec Alsthom Istat 200 DC Voltage Card Used JSA51903001
Allen-Bradley Relay 700-HC14A1-4 W/Base (5)
Siemens Simatic Digital Input Module 6ES5430-4UA12 Used
Apcon Lazer
Kop-Flex Elastomeric Coupling 30 EHUB
Bailey PTSDDC Pressure transmitter PTSDDC122BB210B
Siemens Digital Input 6ES5 434-7LA11
Hitech Dielectric Hose SI-3024
Gould Shawmut Tri-onic Time Delay Fuse TRS1-8/10R (4)
Dresser / Masoneilan Plug Linear 607000-002-940
Bucher Hydraulics Beringer Power Supply NTA-1
Hydac Betamicron 3Plus Filter 0990 D 005 BH3HC
Drexelbrook Level Control Transmitter 407-6000
Magnetrol Flow Switch F50
ABB PC Board Interface 3BSE005177R1
Robco Mechanical Seal Type 1 TC/SC Viton 4"
Weir Minerals GEHO Pump Roof-Shaped Rings 933.160.127
Morgan Kaowool Thermal Ceramic Gasket Grade 2000 22"
Aeroflex HRC Fuse HA4 350 Form 1
Fybroc Backplate 1500 6" X 8" X 13"
Larco Break Pad Kit 99-3601
SKF Bearing 2311 K
Siemens Transformer A1-106-010-001 TR-13900
General Electric Contactor Relay CR2810A 14AC
Fenwal Thermoswitch 01-018002-021
Honeywell Universal Digital Controller UDC200
ABB Synchronizing Relay Monitor Synchrotact 4
Visua Scan Printhead Kit Titan 6200
Rosemount Conductivity Microprocessor Analyzer 1054BT
Telemecanique Motor Starter Contactor LD1-LB030
Siemens Circuit Breaker JD63F400 400A
Schneider Automation Analog Output 140 ACO 020 00
Dresser Nil-Cor Butterfly Valve 8" Series 310
Triconex Terminal Board for 2652-9 7400058-390
Siemens Rectifier Stack C67117-A5306-A595
Hammond Primary Fuse Kit FK-11(lot of 4)
Dresser / Masoneilan PTFE Valve Bellows 607006-000-940
Hammond Primary Fuse Kit FK-11(lot of 4)
Dresser / Masoneilan PTFE Valve Bellows 607006-000-940
Techmo Car Brass Bushing Heavy Duty 72mm x 60mm x 60mm (lot of 2)
Newco 1-1/2" Swing Gate Check Valve 38SFS2 / 38S-FS2
Dresser Nil-Cor Ball Valve 300 R-T-H-X 1.5"
Armstrong Y-Type Cast Iron Strainer 3" dia CA1SC
Newco Valve Trim (for 11FCB2 10") (Lot of 2)
Carbone of America Thermowell 2TWF-26-14-.5-R10
Omron Relay Base P2CF-11 (Lot of 3)
Legris Ball Valve Double Female 0402 32 49 1-1/2"
Northtern Telecom Wireless Base Station NT0P30DA-93
Siemens 3 Phase RC Filter R15B02-327-C
Carbone of America Thermowell 15TW-31-9.91-0.5-R5
Ashcroft Temperature Switch T424TS-040 w/ 3" Probe
Veco Cable Carrier WS1F/85 (Lot of 6)
Gates Hi-Power V-Belt B74 (Lot of 2)
Gates Tri-Power V-Belt BX78 (Lot of 2)
General Electric Output Current Board ML471L561 GR.1
Eupec Power Block R55-01-127 (Lot of 3)
Crouse-Hinds Non-metallic Push Button Station Type N2S
Aeroflex Delay Action Fuse HRC I-R HA6 500 New
Valmet Metso Paper Cylinder Seal Kit 2300-FD/160/-/90
Gates Tri-Power V-Belt BX46 (Lot of 2)
Goodyear HY-T Wedge V-Belt 3VX1120 (Lot of 3)
Westinghouse Control realy BFD55S 275A288G01
O-Z/Gedney Superstrut Spring Nut 1/4" (Lot of 40)
Omega Probe Handle w/ Cable SDX-UST-K-SMP-M (Lot of 2)
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