DI FBM 217-P0914TR DI FBM 217-P0914TR
現貨 進口全新原裝
廈仲岳航計算機工程有限公司
聯系人:陳如(銷售工程師)
電話:0592-5085329
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傳真:0592-5165561(陳工)
郵箱:1151195663@qq.com
qq:1151195663
廈門市思明區湖濱東路湖光大廈8樓A座
一般來講,控制系統網絡可分為3層:信息層、控制層和設備層(傳感/執行層)。傳統的控制系統在信息層大都采用以太網,而在控制層和設備層一般采用不同的現場總線或其他專用網絡。目前,以太網已經滲透到了控制層和設備層,很多的PLC和遠程I/O供應商都能提供支持TCP/IP的以太網接口的產品。以太網之所以給自動化市場帶來風暴式的革命,主要有3個原因:低成本的刺激和速度的提高;現代企業對實時生產信息有越來越多的要求;以太網的開放性和兼容性。
早期的以太網,多節點共享同一個傳輸媒體,稱為共享以太網(Shared Ethernet),節點間通信采用廣播方式,易發生沖突。共享以太網用CSMA/CD技術來避免沖突,即發送方檢測到沖突就暫停發送,隨機延遲一段時間后再重新發送直到成功。由于延遲時間是隨機的,不能事先知道,因而共享以太網的時間響應具有不確定性,不能用于強實時性場合。DI FBM 217-P0914TR
交換以太網(Switched Ethernet)的出現克服了這一缺點,以太網的交換機(Switch)是數據鏈路層(ISO/OSI參考模型第二層)的多端口網橋,也可以說是智能分配器。交換機將其管理的網絡以星型拓撲結構劃分為許多物理上互相隔離而邏輯上互相聯系的節點,每一節點單獨與交換機建立物理連接,在通信的時候交換機會在發送端口與接受端口間建立一個獨占的全雙工通道,它具有以太網的全部帶寬并避免沖突。
Great Lakes Instruments 690P Two-Wire Transmitter
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Enerpac LT50TS Power Torque Wrench
Apex 5130 Socket 15/16" (Lot of 2)
Specialty Crimper 51002 37032
URYU URW-81R Air Operated Ratchet Wrench 3/8"
UNB 10mm Allen Wrench (Pack of 10)
INBRAKO 10mm Allen Wrench (Pack of 2)
Xcelite 3CSK-WH Coaxial Wire Stripper for all cable sizes 1"-3"
Xcelite 3CSK-GN Coaxial Wire Stripper for all cable sizes 1"-3"
AMP 58433-2 CO-AX Hex Crimper
Gardner-Denver H16RF07T3E100 Nut Drive Air Operated 19mm or 3.5 inch
Osborn 06081228 Medium Face Wire Wheel 6" OD x 2" AH
Virginia Plastics 020-003-474 Modular Tele-Crimp Tool
Amphenol 227-909-2050 Fiber Optic Quick Crimp Tool
Carr Lane CL-253-VTC Verticle Handle Toggle Clamp
Continental Hydraulics C05MSV-PC-30-GA-A Check Valve
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Tour & Andersson AB DN32 Balancing Valve 1-1/4"
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Humphrey Products 062E1-3-10-20-36 Pneumatic Air Valve 120V 50/60Hz 8.2W
ASCO MP-C-080 Solenoid Valve Coil
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Lubriquip MD-3 Inlet Divider 1/4" & 1/2" A96
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Lubriquip Valve Assembly 3500PSI
Lubriquip By-Pass Divider Valve K00
Lubriquip MSP-30S Divider Valve J01
Lubriquip MXP-100S Lubricator Valve A04
Lubriquip MSP-40S Divider Valve C04
Lubriquip MSP-15T Divider Valve D02
Lubriquip MXP75S Moduler Divider Valve C01
Lubriquip MD-2 Inlet Divider 1/2" & 1/2" G97
Lubriquip MD-3 Inlet Divider H90 1/4" & 1/2"
Lubriquip Modular Divider Valve Subplate NPSF
Lubriquip Mainfold Divider Valve K02
Lubriquip Mainfold Divider Valve C04
Lubriquip Mainfold Divider Valve H02
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Beck 20-2700-20 Valve Actuator Motor
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Valve Handle Lot 5/16" (Approx. 11 Pieces)
Valve Handle Lot 1/2"
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Lubriquip MSP-25S Divider Valve G03
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Lubriquip MSP-15S Divider Valve B02
Lubriquip MSP-15S Divider Valve D04
Lubriquip N-MSP-15T Divider Valve E88
Lubriquip MSP-20T Divider Valve H02
Lubriquip MSP-30S Divider Valve H04
Lubriquip MSP-5S Divider Valve H03
Lubriquip MSP-5T Divider Valve E00
Lubriquip MSP-20T Divider Valve L85
Lubriquip MSP-20T Divider Valve J84
Lubriquip MSP-20T Divider Valve H83
Lubriquip MSP-5T Divider Valve A01
Lubriquip MSP-20S Divider Valve F03
Lubriquip MSP-5T Divider Valve H02
Lubriquip MSP-15S Divider Valve D04
Lubriquip MSP-25S Divider Valve E03
Lubriquip MSP-5T Divider Valve H04
Lubriquip MSP-5T Divider Valve J02
Lexair, Inc. 20-1147 Valve Repair Kit
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Lube Devices Inc. Valve Brush
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Jayco AS5311-4M Vacuum Muffler 1/2"
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Sloan A-19-AC Closet Relief Valve
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Numatics 082RD115J Solenoid Valve with Valve Block and Receptacle
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Ross 2768B4901 Valve
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DI FBM 217-P0914TR