1794-ACNR15
1794-ACNR15
1794-ACNR15
——“凡事預(yù)則立,不預(yù)則廢”。幾乎所有的企業(yè)都曾處在這五個(gè)階段之中:無計(jì)劃階段;預(yù)算制度階段;年度計(jì)劃制定階段;長(zhǎng)期計(jì)劃制定階段;戰(zhàn)略計(jì)劃制定階段。AB的發(fā)展過程注定是職業(yè)經(jīng)理人的成長(zhǎng)過程,計(jì)劃意識(shí)和能力是他們的基本標(biāo)志。
200X年,AB公司整體戰(zhàn)略中對(duì)公司的營(yíng)銷機(jī)構(gòu)進(jìn)行了調(diào)整,通過八大分公司完成全國(guó)范圍內(nèi)的營(yíng)銷工作,此舉對(duì)于各分公司經(jīng)理來講既是機(jī)遇更是挑戰(zhàn),“計(jì)劃、實(shí)施、控制、總結(jié)”是對(duì)他們能力的培養(yǎng)和考察。
現(xiàn)貨+特價(jià)=您懂的
還在等什么!!! 看到品牌型號(hào)!拿起電話打進(jìn)來
發(fā)布的型號(hào)都有產(chǎn)品!! 價(jià)格!庫存!低價(jià)熱賣
系統(tǒng)平臺(tái)意味著系統(tǒng)各部分設(shè)備提供符合國(guó)際標(biāo)準(zhǔn)的各種接口,計(jì)算機(jī)之間的數(shù)據(jù)共享,以及提供給用戶的通用友好界面等。“平臺(tái)”思想因其良好的標(biāo)準(zhǔn)化和開放比,越來越降遍地為大家所接受。
電力系統(tǒng)自動(dòng)化對(duì)可靠性的需求,使人們注意到“PLC ”(可編程邏輯控制器)這種高可靠性和強(qiáng)抗工業(yè)干擾的技術(shù)。90年代以來,PLC 發(fā)展迅猛且應(yīng)用的局域網(wǎng)技術(shù)日趨成熟,產(chǎn)品不斷向系列化、標(biāo)準(zhǔn)化發(fā)展,在自動(dòng)化控制領(lǐng)域中,新一代的PLC 改進(jìn)為PCC (Progammable Computer Controller)已逐漸躍居主導(dǎo)地位,成為實(shí)現(xiàn)自動(dòng)化控制的關(guān)鍵技術(shù),在電力系統(tǒng)也不例外。
PCC 是新一代“可編程計(jì)算器控制器”,是專為在工業(yè)環(huán)境下應(yīng)用而設(shè)計(jì)的數(shù)字運(yùn)行電子系統(tǒng),采用“面向用戶的指今”, 因此編程方便;它直按應(yīng)用于工業(yè)環(huán)境,具有更強(qiáng)的抗干擾能力、更高的可靠性、廣泛的適應(yīng)能力和應(yīng)用范圍;大容量的存儲(chǔ)能力、標(biāo)準(zhǔn)通信接口,基于過程總線的系統(tǒng)互聯(lián)、高級(jí)語言開發(fā)和運(yùn)行環(huán)境,自診斷能力,都使得PCC 為變電站自動(dòng)化提供了出色的友好“平臺(tái)”。
PCC 在變電站自動(dòng)化中的應(yīng)用
下面介紹應(yīng)用PCC 實(shí)現(xiàn)的智能分布式系統(tǒng)運(yùn)用于某供電局的一個(gè)110KV 變電站的例子。系統(tǒng)按分布式結(jié)構(gòu)設(shè)計(jì),采用開放系統(tǒng)、分層控制等先進(jìn)的計(jì)算機(jī)設(shè)計(jì)思想,將計(jì)算機(jī)技術(shù)、通信和網(wǎng)絡(luò)技術(shù)、數(shù)據(jù)庫技術(shù)、圖形和圖像技術(shù)、多媒體技術(shù)、數(shù)據(jù)采集和自動(dòng)控制技術(shù)有機(jī)地結(jié)合在一起,技術(shù)成熟,運(yùn)行經(jīng)驗(yàn)豐富,能夠滿足近期的功能要求和遠(yuǎn)期的發(fā)展需要。整個(gè)設(shè)計(jì)遵照國(guó)際90年代IEC1000系列標(biāo)準(zhǔn),滿足ISO900l 國(guó)際標(biāo)準(zhǔn)。從現(xiàn)場(chǎng)投運(yùn)以來,運(yùn)行穩(wěn)定,技術(shù)趨于成熟。
首先,上位機(jī)和網(wǎng)關(guān)單元組成智能分布式系統(tǒng)結(jié)構(gòu)的變電站層。
上位機(jī)通過PROFIBUS 網(wǎng)絡(luò)與三個(gè)主要PCC 采集控制單元(ST1, ST2 , ST3 )相連,上位機(jī)相當(dāng)于PROFIBUS 網(wǎng)上的一個(gè)結(jié)點(diǎn)。PROFIBUS ( Process Field Bus)網(wǎng)絡(luò)是一種高速數(shù)據(jù)鏈路,是具有標(biāo)準(zhǔn)通訊能力的開放式現(xiàn)場(chǎng)總線,用于PCC 與PCC 之間,或與其它接到本網(wǎng)絡(luò)上的智能設(shè)備(如顯示單元PANELWARE ,上位機(jī)等)間傳送數(shù)據(jù)和系統(tǒng)狀態(tài)。網(wǎng)絡(luò)協(xié)議符合德國(guó)國(guó)家標(biāo)準(zhǔn)D IN19245 ,傳送介質(zhì)為帶屏蔽的雙絞線(或光纜),通道存取方式為令牌(TOKEN )方式,在網(wǎng)絡(luò)上任一結(jié)點(diǎn)地位平等。
上位機(jī)既可以單機(jī)運(yùn)行,也可以采用多機(jī)及網(wǎng)絡(luò)方式運(yùn)行;軟件平臺(tái)采用32 位多任務(wù)、多進(jìn)程設(shè)計(jì),可支持Windows95 / 98 / NT 操作系統(tǒng)軟件,配有多種應(yīng)用軟件接口,并支持OEM 開發(fā),為用戶提供了二次開發(fā)平臺(tái);硬件平臺(tái)可采用小型機(jī)、微型機(jī)或工作站等設(shè)備。
網(wǎng)關(guān)單元ST1上的IFO5O 通訊模塊以及CPU 內(nèi)部均提供RS485 接口與繼保單元相連。網(wǎng)關(guān)單元還提供與外界進(jìn)行通訊的接口,如RS232口通過撥號(hào)MODEM 接入市話網(wǎng),以便于遠(yuǎn)程診斷;或者經(jīng)路由器接入TCP / IP 遠(yuǎn)程網(wǎng)。
若用戶具備與internet 連接的條件,變電站層還可以提供PVI瀏覽器方案,實(shí)現(xiàn)遠(yuǎn)方讀取數(shù)據(jù)。
其次,PROFIBUS 網(wǎng)上的各采集控制單元組成智能分布式系統(tǒng)結(jié)構(gòu)的采集層。
遙測(cè)實(shí)行交流采樣,遙測(cè)主單元ST3 通過net2000與兩個(gè)遙側(cè)子單元相連,利用CP153上的RS485 串行口通信。遠(yuǎn)傳功能通過IF060 提供的RS232 串行口來實(shí)現(xiàn)。
電度量通過遙測(cè)子單元1上的DIXXX 模塊采集脈沖計(jì)數(shù)來實(shí)現(xiàn)。
遙信/遙控單元實(shí)現(xiàn)數(shù)字量的采集和輸出控制。
第三,智能分布式系統(tǒng)結(jié)構(gòu)的外圍層為設(shè)備層,包括采集層用到的傳感器、二次控制回路等。
設(shè)備層根據(jù)現(xiàn)場(chǎng)總線( CANBUS ,PROFIBUS )網(wǎng)絡(luò)傳輸速率快(》 = 50OkbS ) ,軟硬件實(shí)現(xiàn)簡(jiǎn)單等特點(diǎn),可以CANBUS (上述實(shí)例是通過RS485 等)來連接變電站內(nèi)的其他自動(dòng)化裝置和保護(hù)單元、故障錄波、饋線子站及無功補(bǔ)償設(shè)備等的主干網(wǎng),并通過現(xiàn)場(chǎng)總線網(wǎng)絡(luò)連接到采集層,與上一層進(jìn)行必要的數(shù)據(jù)通訊。
本實(shí)例系統(tǒng)的CPU 、專用的網(wǎng)絡(luò)模塊(NW150)和通訊模塊(IFXXX )提供了多種標(biāo)準(zhǔn)通信接口( TTY ,RS422 , RS232 , RS485 ) ,使得CPU 的局部I / 0 總線擴(kuò)展、遠(yuǎn)程擴(kuò)展I/0 (通過RS485 電纜)以及CPU 間的現(xiàn)場(chǎng)總線組網(wǎng)非常靈活,從而方便地實(shí)現(xiàn)系統(tǒng)縱向或橫向集成。系統(tǒng)軟、硬件方面良好的自診斷功能,可把故障范圍減至最小。又由于PCC 的CPU采用68 000+RISC 的32 位微處理器,具有極強(qiáng)的運(yùn)算處理能力,可使大量運(yùn)算、控制功能、保護(hù)功能分散在各智能單元,大大提高了站內(nèi)通信網(wǎng)的利用率,使整個(gè)系統(tǒng)效率達(dá)到最高。
本系統(tǒng)具有可擴(kuò)充的模塊化結(jié)構(gòu)、電源、CPU 、網(wǎng)絡(luò)板(NWXXX )、I/O 板(數(shù)字量輸入輸出板DIXXX / DOXXX 、模擬量輸入板AIXXX 等)、串口板等都是獨(dú)立的模板以總線方式連接在底板( basePLATE)上,它取代了標(biāo)準(zhǔn)的框架裝配的局限性,可在標(biāo)準(zhǔn)的DIN 軌道上任意拆裝、組合。
另外每個(gè)單元都有一電源模塊PSXXX ,并且總在最左邊。系統(tǒng)電源是系統(tǒng)可靠性與完整性的第一保證,PCC 的輸入電壓有AC 、DC 兩種,可實(shí)現(xiàn)交/直流切換。
發(fā)展前景
從上例可以看出,繼承了PLC 與微機(jī)技術(shù)的PCC 技術(shù)形成的第一代自動(dòng)化軟件硬件平臺(tái)結(jié)構(gòu),具特點(diǎn)包括:
高可靠性的元件、適應(yīng)于工業(yè)環(huán)境運(yùn)行的設(shè)計(jì)。
采用32 位CISC 和RISC 的CPU,大容量存儲(chǔ)器,實(shí)時(shí)操作系統(tǒng)、支持計(jì)算機(jī)網(wǎng)絡(luò)通訊、
采用高級(jí)語言編程和梯形圖邏輯設(shè)計(jì)的標(biāo)準(zhǔn)軟件硬件平臺(tái)。
高效率的標(biāo)準(zhǔn)現(xiàn)場(chǎng)總線PROFIBUS、支持Peer-to-Peer的網(wǎng)絡(luò)通訊方式和分布式處理,實(shí)現(xiàn)
當(dāng)?shù)赝ㄓ崳瑯?biāo)準(zhǔn)化軟硬件模塊設(shè)計(jì),減少電纜,降低建設(shè)投資和運(yùn)行維護(hù)費(fèi)用。
配置靈活,容易在線擴(kuò)充修改。
易于實(shí)現(xiàn)橫向縱向功能集成,達(dá)到實(shí)時(shí)信息的全局共享,實(shí)現(xiàn)白動(dòng)化。
應(yīng)用軟件開發(fā)的支持,不僅適合穩(wěn)態(tài)的數(shù)據(jù)采集,也適合瞬態(tài)信號(hào)的采集。
本地/遠(yuǎn)程診斷。
總之,開放式系統(tǒng)平臺(tái)是當(dāng)前變電站自動(dòng)化發(fā)展的方向。由于綜合需要,網(wǎng)絡(luò)技術(shù)、通訊協(xié)議的標(biāo)準(zhǔn)、分布式技術(shù)和數(shù)據(jù)共享、新的算法的研究以及隨之而來的經(jīng)濟(jì)效益的研究等是當(dāng)前變電站自動(dòng)化研究的熱點(diǎn)問題。PCC 應(yīng)用為變電站自動(dòng)化提供了廣闊的前景。現(xiàn)代的PCC 與微機(jī)的發(fā)展相互滲透,已是一種可提供諸多功能的成熟的用戶應(yīng)用控制系統(tǒng),而不是一種簡(jiǎn)單的邏輯控制器,它已被開發(fā)出更多的接口與具它控制設(shè)備進(jìn)行通信、生成報(bào)告,多任務(wù)調(diào)度,可診斷白身故障及機(jī)器故障,這此優(yōu)勢(shì)使PCC 可以實(shí)現(xiàn)各種變電站運(yùn)行、分析與控制功能,符合當(dāng)今的變電站自動(dòng)化系統(tǒng)及站內(nèi)自動(dòng)化設(shè)備的高要求。利用PCC 和現(xiàn)場(chǎng)總線局域網(wǎng)絡(luò)組成變電站自動(dòng)化系統(tǒng)不僅滿足變電站對(duì)系統(tǒng)的功能結(jié)構(gòu)要求,而且具有很高的性能價(jià)格比,是值得進(jìn)一步探討的一種可行性方案。
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Applied Materials AMAT 0010-30659 Lid Lift Fixture Tetra II
Lot of 3 CTI onBoard P300 control module 8113160G-001
NEW AMAT 0190-18328 ASSY. hose 75' SMC/AMAT1, Chiller Hose & quick disconnect
NEW AMAT 0020-24721 Shield Lower 8 inch, 101/COH AR, 13 inch
EFD 1500XL Fuse T 125mA 250V 0114-162-0032
MKS Instruments 128AA-00010-SPC?AL Baratron, 4T 1/2VCR 15P 100C
HAMA SENSORS ZX-73APIH, lots of 2
AMAT 0100-91077 PWBA ANALYSING MAGNET AMPLIFIER, S50367807
NEW AMAT 0100-90188 PWBA VACUUM MANUAL CONTROLLER
MKS baratron 127AA-00001E, 1 Torr with calibration sheet, Clean, S952712
NEW McMillan 401 Liquid flow control 200-2000mL/min with 401 control module
Lot of 2 Leybold NT 341 M , Turbotronic turbo pump controller
TEL 1D10-102521-12, Shield, Depo, Upper-Y, looks new/ceramic coated, very clean
2 LAM 716-011036-001 Ring Filler, orifice, alumnia
3 MKS baratron 124A-11848, 2000 TORR, S 8263A
12 new AMAT 3980-01046 ring pedestal 150mm alum tss pkg mec/st
6 STEC MFC SEC-4400M, NH3, CF4, CHF3, used
5 IPEC Speedfam Novellus 952363, Entegris Q4000 Ball valve
TREK 684-1, 6 phase ESC Power supply, Novellus R19-137359-00
4 NEW Linear actuator 400MM rail two long NP105, 95086-52
2 NEW Novellus 94-34505-60 PCB board, I/O genus, 1569-04
Ipec Speedfam Novellus 959084 Lot of 2 Brushless Servomotors
Berkeley Process Controls ASM121-A-0/B-22?-NB/10, AC Brushless Servo Motor
12 new HBC-558 solid state relay opto 22 480D45-12-NOV12?0 novellus 61-338317-00
3 Horiba Stec SEC-4400 MFC, SEC-4400M, NH3, 300 SCCM
2 AMAT 0190-35791 MUXADIO-001 Seriplex multiplexed ADIO boards
JULABO chiller FP30-H/8 FP30 /6 96404120698
Asyst crossing automation 9701-2157-01, 4301239986 assembly, ACTV POD
lot of 4 SIEBE ENVIRonMENTAL ConTROLS MSC-U1000 4 channel smoke control
NEW 17 HPS 100319113 ISO-KF to VCR-M Adapter AMAT 3300-03436
Asyst 3200-4236-01 assymbly 4002-8268-01, 4002-8551-01, 4002-8130-01 ASSY KIT
NEW AMAT 1200-01514 Relay Contactor 3P AC/DC control, telemecanique LCI F500
VAT 61538-PEAZ-APY1?/0003 Butterfly Throttle and Iso valve Novellus 61-406196-00
MKS Throttle valve T3BIA-28717, Type T3BI control valve
ASYST Wafer Mapper assy, 9700-7051-01, 4002-6446-01 and PCB 3200-1229-01, Clean
Affinity Chiller Used FWA-032K-DD01CA?M1
VAT 14038-PE24-AIU1?/0012 HV Gate valve, 14038-PE24-AIU1
AMAT 0020-42290 Centura, Endura ROBOT Blade 8 inch Tight Tol
Parker 6K4, 0125-112454, 4 Axis servo stepper motor drive controller
AMAT 0010-91251 Mass Resolving Slit Assembly
Aluminum Vacuum chamber 17"x16"x4" Various ports 2 gas feed ports with Mott tube
NEW AMAT 0010-10569 HOUSING ASSY, HOT PLATE, 200M TICL4 TIN
Brooks 002-5860-01, Card, Theta Driver, Brooks, ATR7, Novellus 27-155081-00
VAT 20040-UE24-ABD2?, Valve, VAT, 6"CF, EXT Body, Novellus R60-154308-00
Asyst Brooks 300 mm Roboto Blade, 300mm
AMAT 0020-10520, 125mm, pedestal thick
7 new Todd products SC24-11C, power supplies, 115/230VAC 6A/3A w/ paper work
NEW Novellus 150-000-057, 950827 Drive assy w ASM81-B & Brecoflex T10/980 belt
Brooks Module Controller 002-5870-05, I/O Assembly 002-4674-09
AMAT 0020-76314 Lid, Transfer Changer Centura M/F
AMAT 0020-76314 Lid, Transfer Chamber Centura M/F
SVG 879-0262-001 Shutter interlock control PCB 859-0727-010E
AMAT 0010-00006 RF RACK Control panel, back mount RF generator rack
AMAT 0040-09960 PEDESTAL, 200MM NOTCH, IS, SOLID, ESC assy, chuck, 327152
ASTeX ABX-X348 ETO driver board water cooled
AMAT 0040-09942 SHELL ASSY, ESC assy, 150MM FLAT, IS, Mono, 37MIC, with papers
NEW TEC ASM 000-71002700-00?, PCB, TEC 68356 D 45877
Advanced Motion Controls 30A20-ACT Brush Type PWM Servo Amplifier, New in Box
6 NEW Fluorosilicone 19.33 x 1.39 Oring, Blue, 70, 22-373624-00
KTec Electronics 0140-77751 HARNESS, ROBOT ENCODER, MNFRM-CNTRLR 125
AMAT 0090-75015 SYNERGY V440 SBC PCBA board
asyst 4002-7369-01 Roboto blade
2 NEW Stec SEC-4400 MFC, SEC-4400M, WF6 gas, 10 SCCM flow rate, S9941, S9939
2 Horiba Stec SEC-4400 MFC, SEC-4400M, CF4, 50 SCCM
NEW Parker 43900725 Aviza 085206-000, Veriflo regulator model SQ140E302PMSMFP?M
NEW HVA 21250-0306Z-001 Novellus 19-147081-00, 3' High temp gate vale
Novellus 15-01107-00 Panel, LL, Side DCS
Motion Control Assembly w/ 4 advanced motion control Servo Controllers X02B30A8Q
LYTRON chiller RC011H03BG2C001
Lot of 2 Aera TC FC-PA7800C MFC 200 sccm CF4, Novellus 22-190949-00
Lot of 2 Aera TC FC-PA7800C MFC 50 sccm N2, Novellus 22-268871-00
AE 3153110-000 E Chuck 750V, 2305596-A power supply, AMAT
MKS 600 series pressure controller 655AD2B
2 Horiba Stec LV-F50PO LFC 1@25 ccm, and 1@ 20 ccm TEOS
NEW AMAT 0010-38166 ASSY, CHAMBER LID, PHASE III, TRENCH NG KIT
NEW AMAT 0190-21434 TARGET MONOBLOCK, ALCU 1/SI 1
air bearing Spindle Federal mogul Westwind. 1073-69
VME MOTOROLA 2304-900
3 Horiba Stec LF-210A-EVD Liquid MFC, TDMAT, 0.1 g/min, 1081430IM
LAM 853-015130-103 RF Match, used
3 Horiba stec MFC LF-410A, LF-410A-EVD, TEOS, 4.0 g/min, S0101
NEW AMAT 3870-00154 Slit valve DBL ACTG 49MM ST
AMAT 0190-70060 KollMorgen 1100-0051-00 Magnedyne Electromagnet driver, S8712
Asyst 4002-6446-01 A, 9701-2143-01 wafer mapper, assembly, FRU, OPT, 3200-1229
Asyst 4002-6446-01, 3200-1229-01, wafer mapper, assembly, FRU, OPT
3 AMAT Gas Manifold Assembly with Pneumatic valve, VCR fitting
5 TEL 1381-658459-12 connector PCB, 648180
NEW Raytek RAYITXACN4, SVG 1-907840-001 IR Temperature sensor kit RAYIT2SFS
AMAT 0150-1000 Kaiser systems inc power supply S1-1-1000, 1000V, 1A, 1100891
Novellus 01-17005-00 Controller MPU 9100
AMAT 0100-38027 Seriplex I/O distribution board
AMAT 0010-18132 HDPCVD Ultima RPSC Applicator 5200 CVD HDP-CVD & PCB 0100-18035
AMAT 0010-18132 HDPCVD Ultima RPSC Applicator 5200 HDP-CVD, & PCB 0100-18567
24 AMAT 3870-01767 Fujikin Valve
AMAT 0100-00347 PCB ASSEMBLY, SYSTEM ELECTRON
NEW AMAT 0200-10555 baseplate, With Baffle Quartz
3 Horiba Stec LF-310A-EVD Liquid MFC, TEPO, 0.25 g/min, S111285
2 AdvanTech CIRCUIT MODULE SOM-DB4400, Development Board for SOM-ETX Rev A2
Asyst Technologies 3200-1226-04B PCB board
3 Horiba Stec SEC-4400 MFC, SEC-4400M, SiH4, 100 SCCM, S27220
AMAT 0190-A2321 SBC, GE FANUC VME BUS, VMIVME 7663, VME-7663-11000
AMAT 0010-13104 Cassette Handler Bottom Parts
SVG 99-80207-02 SPIN STATION EXPANSION BOARD, REV A
MKS CT27A11TBC9, AMAT 1350-01190 Baratron Capacitance manometer 10TORR DNET
Tylan general AC-2 Adaptorr model AC213C REV A millipore S4943
AMAT 0010-18132 HDPCVD Ultima RPSC Applicator 5200 HDP-CVD, PCB 0100-18567 REV
注:聯(lián)系我時(shí),請(qǐng)說是在“傲立機(jī)床網(wǎng)”上看到的,謝謝!