描述
5X00119G01
PLC于20世紀60年代末期在美國首先出現(xiàn)，目的是用來取代繼電器，執(zhí)行邏輯、計時、計數(shù)等順序控制功能，建立柔性程序控制系統(tǒng)。1976年正式命名，并給予定義：PLC（ProgrammablelogicController）是一種數(shù)字控制專用電子計算機，它使用了可編程序存儲器儲存指令，執(zhí)行諸如邏輯、順序、計時、計數(shù)與演算等功能，并通過模擬和數(shù)字輸入、輸出等組件，控制各種機械或工作程序。經(jīng)過30多年的發(fā)展，PLC已十分成熟與完善，并具有強大的運算、處理和數(shù)據(jù)傳輸功能。并定義為可編程控制器（ProgrammableController PLC）。PLC在FCS系統(tǒng)中的地位似乎已被確定并無多少爭論。參見圖3：IEC推薦的現(xiàn)場總線控制系統(tǒng)體系結(jié)構(gòu)。PLC作為一個站掛在高速總線上。充分發(fā)揮PLC在處理開關量方面的優(yōu)勢。另外，電廠輔助車間，例如水處理車間、循環(huán)水車間、除灰除渣車間、輸煤車間等，這些車間的工藝過程多以順序控制為主。PLC對于順序控制有其獨特的優(yōu)勢。輔助車間的控制系統(tǒng)應以遵循現(xiàn)場總線通訊協(xié)議的PLC或能與FCS進行通訊交換信息的PLC為優(yōu)選對象。
現(xiàn)場總線的應用是工業(yè)過程控制發(fā)展的主流之一?？梢哉fFCS的發(fā)展應用是自動化領域一場革命。采用現(xiàn)場總線技術構(gòu)造低成本現(xiàn)場總線控制系統(tǒng)，促進現(xiàn)場儀表的智能化、控制功能分散化、控制系統(tǒng)開放化，符合工業(yè)控制系統(tǒng)技術發(fā)展趨勢。
產(chǎn)品承諾：
保?證?全新原裝進口,
保?證?安全準時發(fā)貨，
保?證售后服務質(zhì)量，
優(yōu)勢價格，大量現(xiàn)貨。
主營DCS系統(tǒng)配件
機器人系統(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。ACSO，橫河等進口品牌。 專業(yè)銷售進口DCS? PLC系統(tǒng)備件模塊
Triconex?Siemens?Yaskawa?ABB?GE?Ovation?AB?Foxboro?Motorola?Schneider?XYCOM?KUKA ? 專業(yè)銷售進口DCS? PLC系統(tǒng)備件模塊 15天包退換 一年質(zhì)保 大量現(xiàn)貨? 國內(nèi)實力庫存商家
3COM/US Robotics Total Control 69-000944-00 Dual PRI NA
3COM 3C16476-US Networking Switch 48 Port
3COM 3C16487 BASELINE SWITCH 2824 PORT GIGABIT SFP
L-3 Com./Nova Source 19502450-100x RF Signal Source
L-3 Com./Nova Source 15002000-100x RF Signal Source
3COM 3C16476BS 3COM Switch 2250 Plus. 48 ports 10/100 B
3COM OFFICECONNECT INTERNET FIREWALL DMZ 3C16771-US
3Com SuperStack 3 Switch 3300 XM 24 Port 3C16985B
3COM SUPERSTACK II ADV RPS ENET MANAGEMENT 3C16080
NEW 3COM 3C10402C 3102 Backlit Business Phone 2line
NEW 3COM 3C13780 Router 2-Port FXS Interface Module MIM
One-day shipping available
3Com 3C16841 Switch 4005 2-Port 1000BASE-T Module
GENUINE 3Com 3CSFP91 SFP Module Ask for QTY TNET
3COM 3CBLSF26H Baseline Switch 2226 Plus 26 Ports SALE!
3COM-3C996SX 1000BASE-SXPCI FIBER SERVER NIC NEW RETAIL
One-day shipping available
3COM HUB SUPERSTACK II ETHERNET 10/100MBPS 3C16610US
3com 3C262-FX 100base-fx Sc Module
One-day shipping available
3com 3C16665A-Note Superstack Ii Hub W/1 Bad Port / 5 G
One-day shipping available
3com 3C250100A Lanplex 2500 Base Unit
One-day shipping available
New 3COM NBX V3000 Hard Drive Field Replacemnt 3C10118A
3COM 3101 BASIC PHONE 3C10401B
3Com NBX 100 3C10116B T1/PRI Digital Line Card Mint!
Expedited shipping available
3COM 3C16462 USPP 3C16462
The 3Com NBX 100 Phone System with 4 phones
New 3COM 3C17710 SuperStack 3 Switch 4900 1000BASE-SX
3Com 3CR13020-95 Secure Internet Exchange 4100 IX RPS A
3Com BOARD 3CB9LG4 Modul Switch 4007
3Com Office Connect Net Builder Bridge/Router 3C8852
NEW 3COM 3C13634A Router 3034 with one G.SHDSL port
One-day shipping available
3COM SUPERSTACK 3 4400 48-PORTS SWITCH 3C17204 3C17221
3COM SUPERSTACK 3 4400 48-PORTS SWITCH 3C17204 3C17220
3COM 3C10226B NBX 2102B Business Phone Two RJ45 10/100M
One-day shipping available
NEW 3COM 3C17776 CX4 Local Connection Cable100 cm SALE!
One-day shipping available
3Com Baseline Switch 2824 24-Port
3Com 3C16672 LinkBuilder FMS II w/ 1206-560-000 TESTED
Expedited shipping available
3Com SuperStack 3 Switch 4400 FX 24 Port 3C17210 Mint!
Expedited shipping available
QTY 3Com 3C13701 Router 5012 SIC-1FEA 3C13712 WAN LAN
3Com SuperStack 3 (3C17304) 24-Ports External Switch
Lot 3 3COM 3C10401SPKRA Speaker Phone 3101 SP VOIP VCX
3COM 3CRTPZP0096C TippingPoint Zero Power Bypass 5x Gig
3COM WIRELESS 802.11B 11MBPS/802.11G 3CRWE825075A
3COM SUPERSTACK II 1100/3300 1000BLX MODULE 3C16973
NEW 3COM 3C15500S 12 Month Software Upgrade Service
One-day shipping available
NEW 3COM 3CRWE875075A Wireless LAN Access Point 8750
One-day shipping available
3COM SUPERSTACK 3 BASELINE DUAL SPEED HUB 3C16592B
3COM NBX GROUP 5 PHONE LICENSE 3C10415
3COM NBX 3102 BUSINESS PHONE IP PHONE 3C10402A (NO POWE
3COM 3CBLSF26 Baseline Switch 2226 Plus 26 ports 10/100
One-day shipping available
3COM 3CBLSG16 Baseline Switch 2916-SFP Plus Huge Sale
One-day shipping available
NEW 3COM 3C10380 eXchange Call Center
One-day shipping available
3COM 3CR17332-91 Switch 4210 18-Port 10/100/1000 SFP
One-day shipping available
3com Super Stack -3 Switch 3250
3Com 3C13728 2-Port FXO SIC for 5012 Router
Agilestar – 3CSFP86 – For use in 3Com – New in Box
3COM Baseline 2816 3CBLUG16 16-Port Gigabit Switch
NEW 3COM 3C10222 24-Port 10/100 Ethernet Power Source
3COM 3C1671600A OfficeConnect Gigabit Switch 16 ports
HTM HTMVISTACT-Chin?et VISTACT – Paper Dinnerware, 3-Com
3com 3C8427C Superstack Ii Netbulder 427
3com 3C16593B Superstack Iii 24-p Baseline Ds Hub
3COM NBX GROUP 2 PHONE LICENSE 3C10412
Lot 6x 3Com SuperStack 3 Switch 3300 XM 3C16985B Mint!
LOT x25 PCMCIA Ethernet Card 3COM D-Link Assorted
3Com SS3 Baseline 2824 Gigabit Switch 3C16479-US Mint!
NEW 3COM 3C0VG60005-06 Redundant Power Supply Module
One 3Com NBX VoIP 3102 black business phone (3C10402B)
NEW 3COM 3CBLUF26 Baseline Layer 2 Switch 2026 24-port
QTY 3Com 3C16487 Baseline Switch 2824-SFP PLUS
3COM REMOTE MANAGEMENT ADAPTER 0-PORTS FAST EN 3C215A
3COM ARPS POWER MODULE TYPE 2 POWER SUPPLY 3C16074
專業(yè)銷售進口DCS? PLC系統(tǒng)備件模塊
PLC模塊，可編程控制器，CPU模塊，IO模塊，AI模塊，通訊模塊。AB/施耐德/ABB/GE/本特利/西屋/英維斯/霍尼韋爾/黑馬/FU克斯波羅
15天包退換 一年質(zhì)保 大量現(xiàn)貨? 國內(nèi)實力庫存商家
18150087953 點擊撥打電話聯(lián)系我們