手機號
未認證執(zhí)照
黃工(先生)
普通會員
黃工 (先生)
abb cma112
abb dsab-02c
身在自動化行業(yè)有多少人知道dcs系統(tǒng)中動態(tài)數(shù)據(jù)服務器的設置方法呢。本文針對其設置方法做一個詳細介紹，供大家參考。
dcs控制系統(tǒng)屬于基礎自動化，mis系統(tǒng)側重于辦公自動化。這兩者在反映速度上的區(qū)別很大，dcs是屬于秒級的，而mis是以小時或更長時間為單位的。所以這兩者之間必須要有隔離設備，這個隔離設備就是動態(tài)數(shù)據(jù)服務器。它的功能是生產(chǎn)過程監(jiān)控;歷史數(shù)據(jù)的存儲及管理;統(tǒng)計質(zhì)量控制;設備預防性維護;設備故障診斷;生產(chǎn)優(yōu)化等。
dcs采集現(xiàn)場的生產(chǎn)過程數(shù)據(jù)通過通訊網(wǎng)絡把數(shù)據(jù)傳給操作站和動態(tài)數(shù)據(jù)服務器。動態(tài)數(shù)據(jù)服務器是采集生產(chǎn)全過程的模擬信號或邏輯信號，所以它的采集速度是海量的。要經(jīng)過數(shù)據(jù)淘金，將信號送到生產(chǎn)管理部門。
通常情況下，一個企業(yè)往往有幾種不同牌號的dcs、plc，要把這幾種信號都集中到動態(tài)數(shù)據(jù)服務器中，最好要選擇一個通用顯示平臺。在這個平臺上來顯示不同型號的dcs、plc的信號。通用顯示平臺可采用fix、intouch、組態(tài)王、synall等軟件，開發(fā)各種dcs和plc的驅(qū)動軟件。
最近出廠的dcs采用通用操作站，它采用nt操作系統(tǒng)，監(jiān)控軟件就是fix、intouch.不同dcs型號采用不同的驅(qū)動軟件。各種dcs之間信號傳輸采用opc服務器聯(lián)接，也可以把少量的信號送到mis系統(tǒng)的服務器中。fix、intouch等軟件都能存儲歷史數(shù)據(jù)，幾十個信號可存儲280天之多。如要存儲更多的歷史數(shù)據(jù)，可以采用osi歷史數(shù)據(jù)庫，它可以存儲三年以上。這些通用監(jiān)控軟件都有osi的接口。
老一代的dcs系統(tǒng)的操作站無論操作系統(tǒng)還是監(jiān)控軟件都是專用的，和其它系統(tǒng)通訊都非常困難。如要建立系統(tǒng)間的互聯(lián)，通過計算機接口單元建立動態(tài)數(shù)據(jù)服務器，監(jiān)控軟件仍然可以使用通用的，在nt平臺上運行，但它的數(shù)據(jù)只能上行，不能下行。在設計mis系統(tǒng)過程中，最好使用動態(tài)數(shù)據(jù)服務器，不要把dcs和plc數(shù)據(jù)直接送到web否則會影響到 dcs、plc的正常運行。至于究竟需要建立多少個動態(tài)數(shù)據(jù)服務器，由所需采集的數(shù)據(jù)量和數(shù)據(jù)安 全決定(一般情況下，可達10000點)。
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bosch 1 818 509 569 2-way 1st/pc control cartridge hydraulic valve b438025
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vickers xg 06 2b 30 reducing pressure control hydraulic valve d457512
vickers cge 02 3 21 remote electrically relief hydraulic valve d456943
new nachi dss-g06-c6-r-c1?15-e21 158.5gpm solenoid hydraulic valve d496741
nachi og-g03-p3-k-e50 modular directional control hydraulic valve d472533
new rexroth r900324883 manifold hydraulic valve d360914
parker d1bw20hy21 115v directional control valve b201930
rexroth 4wrz32w3-520-50?/6a24n9k4 directional hydraulic valve d498575
rexroth 4we10d33/0fcw11?0n9k4 solenoid directional hydraulic valve b297664
rexroth 4we6ea60/ew110n?k4 120v-ac directional control valve b308609
sun hydraulics nb2 9js5 aluminum sandwich manifold hydraulic valve b444597
new oilgear hsf802 38gpm flow control hydraulic cartridge valve d496001
sun hydraulics nb3 9jt5 aluminum sandwich manifold hydraulic valve b444603
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sun hydraulics nb3 9jt5 aluminum sandwich manifold hydraulic valve b445883
new milton roy a12840-109 overpump threaded relief hydraulic valve d453516
new nachi ocf-g01-w40-y-3?0 15.8gpm flow control modular hydraulic valve d425092
new ky power e980915254 hydraulic vane motor b492551
rexroth zdr 6 dp2-43/75ym/12 pressure control hydraulic valve d498582
new parker d1vw004cnywh 120v-ac 5000psi solenoid hydraulic valve d399552
new vickers fcv11-12-k-0-nv assembly directional control hydraulic valve b226765
denison hydraulics r2v12u2vps4 hydraulic relief valve d511619
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vickers xcl 03 b 10 reducing 25-1000psi pressure relief hydraulic valve b390112
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vickers dgmpc-5-abk-30 systemstak pilot operated check hydraulic valve b484751
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nachi sa-g03-c5-c115-?e21 110v-ac solenoid hydraulic valve d418118
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nachi og-g03-p3-e50 modular directional control hydraulic valve b220630
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new caterpillar cat 177-4766-e group pilot cartridge hydraulic valve b485860
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nord 979027 950353h 970003e input 1/2in npt manifold hydraulic valve b231748
sun hydraulics zps 9gy5 sae 4 sandwich threaded manifold hydraulic valve b439841
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new sun hydraulics fdba lav flow control hydraulic valve d509357
nachi ss-g03-c5-r-c11?5-e20 115v-ac solenoid hydraulic valve d473040
rexroth drepv 6 c-10/25p16ag24n?k4m 19.5ohm 0.8a pressure control valve b244549
vickers dgmfn-5-y-a2h-b?2h-30 systemstak 32gpm flow control valve b461259
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rexroth dbds 6 p13/100 hydro norma flanged relief hydraulic valve b389386
nachi ocf-g03-p3-k-e5?1 modular flow control hydraulic valve d464292
hagglunds denison sft 015810b1 026-27817 directional control valve b314207
nachi ss-g03-a3z-r-c1?15-e20 directional solenoid hydraulic valve 115v-ac d472445
hagglunds a3d02-34-711-09?02-00b5-013 directional control hydraulic valve b427471
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vickers cge 02 3 21 remote electrically modulated relief hydraulic valve d468355
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rexroth 4we6j60/ew110n9?k4 proportional 120v-ac solenoid hydraulic valve b279354
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sun hydraulics nb2 9jt5 aluminum sandwich 20gpm manifold hydraulic valve b438649
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