描述
FCS是由DCS與PLC發(fā)展而來,F(xiàn)CS不僅具備DCS與PLC的特點,而且跨出了革命的一步,而目前,新型的DCS與新型的PLC都有向對方靠攏的趨勢,新型的DCS已有很強的順序控制功能;而新型的PLC,在處理閉環(huán)控制方面也不差,并且兩者都能組成大型網(wǎng)絡,DCS與PLC的適用范圍,已有很大的交叉。
一、區(qū)別要點
1、DCS
DCS系統(tǒng)的關鍵是通信。也可以說數(shù)據(jù)公路是分散控制系統(tǒng)DCS的脊柱。由于它的任務是為系統(tǒng)所有部件之間提供通信網(wǎng)絡,因此,數(shù)據(jù)公路自身的設計就決定了總體的靈活性和安全性。數(shù)據(jù)公路的媒體可以是:一對絞線、同軸電纜或光纖電纜。
通過數(shù)據(jù)公路的設計參數(shù),基本上可以了解一個特定DCS系統(tǒng)的相對優(yōu)點與弱點。
(1)系統(tǒng)能處理多少I/O信息。
(2)系統(tǒng)能處理多少與控制有關的控制回路的信息。
(3)能適應多少用戶和裝置(CRT、控制站等)。
(4)傳輸數(shù)據(jù)的完整性是怎樣徹底檢查的。
(5)數(shù)據(jù)公路的最大允許長度是多少。
(6)數(shù)據(jù)公路能支持多少支路。
(7)數(shù)據(jù)公路是否能支持由其它制造廠生產(chǎn)的硬件(可編程序控制器、計算機、數(shù)據(jù)記錄裝置等)。
為保證通信的完整,大部分DCS廠家都能提供冗余數(shù)據(jù)公路。
為了保證系統(tǒng)的安全性。使用了復雜的通信規(guī)約和檢錯技術,所謂通信規(guī)約就是一組規(guī)則,用以保證所傳輸?shù)臄?shù)據(jù)被接收,并且被理解的和發(fā)送的數(shù)據(jù)一樣。
歐美品牌停產(chǎn)的,常用的“PLC”備品備件
我司產(chǎn)品應用于以下領域:
1,《發(fā)電廠DCS監(jiān)控系統(tǒng)》
2,《智能平鋼化爐系統(tǒng)制造》
3,《PLC可編程輸送控制系統(tǒng)》
4,《DCS集散控制系統(tǒng)》
?
5,《智能型消防供水控制系統(tǒng)》
6,《化工廠藥液恒流量計算機控制系統(tǒng)》
7,《電氣控制系統(tǒng)》造紙,印染生產(chǎn)線,變電站綜合自動化控制系列
本特利,英維思,伍德沃德,福克斯波羅、西屋、瑞恩、施耐德莫迪康、ABB、AB、西門子、摩托羅拉、GE發(fā)那科、安川、博世力士樂,ACSO,力士樂等各大品牌的DCS系統(tǒng)配件,機器人系統(tǒng)配件,大型伺服系統(tǒng)備件。
Enlarge
G71854 NSK XY-HRS120-RH2SN?F Linear Stage w/Ballscrew
Enlarge
G74627 Labsystems Flouroscan II Fluorescent Type 373
Enlarge
G71680 Valhalla Scientific D6100 Spectral Pwr.Analyzer
G54942 Alcatel IPUP A100L Dry Vacuum Pump
G75678 Argonaut Tech.Quest 210 SLN Control&Quest 210
Enlarge
G54937 Alcatel IPUP A100L Dry Vacuum Pump
C72909 Isel Robotik IPA-58-VKS3-1 5-8″Wafer Prealigner
AC44258 Prometrix Spectromap Film Wafer System SM200/e
C69221 Wentworth FIX-R-1-E Probe Card Repair Station
A34721 Thermotron Environmental Chamber,460/3/60
L75904 Karl Storz Equimat&Endomat System w/stand
C67797 R&K Rucker Kolls 300 Probe Card Building Station
A74366 Sartorius Sartocheck 3 Filter Integrity Tester
A74400 V&P Scientific VP 707 Magnetic Levitation Stirr
C54282 Hot Cold Temp Vacuum Wafer Chuck 11″Stage
C67233 Adept Robot Module 90400-04318/XY-P177S180-1
C56452 Tektronix TLA715 Logic Analyzer(Calibrated 2010
G71828 DeHaart MPC 24/29 Screen Printer
Enlarge
A73306 Mar Research Mar345 Image Plate Detector
A75549 Shimadzu RF-1501 Spectrofluoroph?otometer
C74536 Markem 590 SGT Pad Printer&Touch Panel Display
A69922 Lot of(2)EPE Computer Power Center PowerPacs
C51252 Tektronix TLA715 Logic Analyzer(Calibrated 2010
C53849 Precision Measurement Microscope Sys w/X-Y Stage
A73329 Oxford Cryosystems Cooler Evap Probe,Pump Unit
CC44406 MRL 14TC-45 Conveyer Furnace/Reflow Oven
L75274 Cleansorb C5095DCC Dry Bed Absorber Cabinet
K67775 K&S Kulicke&Soffa 6490 Semi-Auto DieBonder
K72692 Quester Tech UFT10-02 Liquid Source Gas Cabinet
L70515 Varian DS 102 Dual Stage Rotary Vane Vacuum Pump
C72407 Flexus 2 Thin Film Stress Measurement System
C72662 Powervar GPI 3-Phase Power Conditioner 125kVA
A75741 Lab Products 59015HD Vet/Animal Caging System
C75836 Leitz Diavert Trinocular Inverted Microscope
C69606 Intevac NCT 200L Assy Sputtering Source Gun
C70441 Intevac Sputtering Source NCT Intervace Mark V
A39173 Carbolite Type GPC 12/65 Chamber Furnace,1200°C
AH43124 UTE SCS i 124 Substrate Vertical Lap Cleaner
A60926 ALPHASEM AG DB608-PRL Die Bonder w/Selectron
AC44359 Prometrix Resistivity Prober 6″VR-30A System
C71872 CTI-Cryogenics Cryo-Torr 100 Cryopump Cryo Pump
K68523 Kern CPM1 Stereocomparato?r Mono/Stereo
K75665 Nikon Optiphot-2 Trinocular Lab Microscope
R75873 UNISEM Model PPD1500A-A02-AM?T Chiller
L75702 GE Fractionation Kit*NIB*11-0035-99
AT51403 Hughes Model 2500 Automatic Die Bonder
A64698 Advanced Energy PEP-2500 Plasma RF Power Supply
G74798 Alphasem AG DB 608-PRL Die Bonder w/Selectron
Enlarge
A72761 AMC Automation&Modular Component Modu-Con MX2
CT74225 Kevex 7078 Wafer Analysis,X-Ray Source Control
G61761 Applied Biosystems 373 DNA Sequence Stretch
Enlarge
A75223 Power-One 3G37-36 Power Distrubution Unit 40 kVA
C56823 Dage Microtester 22 10kg Shear Test Load Cell
C70560 Royce MBS200 Wire Bond Pull Tester MBS 200
A58949 ESEC SA Wafer Mounter 650.010/6
A72207 Lot of Quality Transformers Corp.10kVA,7.5kVA
A72210 Lot of Lithonia Lighting Reflectors,HID Housing
A74404 Wave Biotech O2MIX Controller,O2MIX20
C53689 Tenney 5 Environmental Chamber(m/n T5-2-100350)
C52722 MCT 4600 Chip Carrier IC Handler for 84PLCC
C52721 MCT 4610 Chip Carrier IC Handler for 28PLCC
C52701 MCT 4600 Chip Carrier IC Handler for 52PLCC
L74808 Welch Allyn Video Path Colposcope 89021A
G63902 Forma Scientific 8325 Bio Freezer
Enlarge
C52694 MCT 3608E IC Handler for 300mil 20pin DIP 3608E3
C52696 MCT 3616E IC Handler(m/n 3616E48P)
C70012 Dage Microtester 22 500gm Shear Test Load Cell
C68808 Davidson Optronics D657-100A Autocollimator
K72695 Innovate 9000 Semiconductor Test Head 220V
C52790 Dage Microtester BT22 5kg Pull Test Load Cell
C52792 Dage Microtester BT22 200g Pull Test Load Cell
C52791 Dage Microtester BT22 1.5kg Pull Test Load Cell
C67867 Dage BT22-LC02 50gm Pull Test Load Cell for BT22
L75273 Asymtek MM-FSLU-STD Upstream Wafer Loader
L75438 Varian DS-102 Dual Stage Rotary Vane Vacuum Pump
C67115 HP Agilent 2090-0357 Vacuum Fluorescent Display
C67234 Adept Robot Module 90403-41063R XY-HRS063CS110A?D