Bronkhorst FLOW-BUS interface Manual do Utilizador descarregar pdf (Página 22)

BRONKHORST®

5 FLOW‐BUSSYSTEMOPERATIONWITHCOMPUTER

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Thereareseveraloptionstodothis.Firstseethat thechosenhardwareisabletocommunicatewiththeFLOW‐BUS

systemandthatthiscanbedonewithasufficientvelocityofparametertransferforyourapplication.

Bronkhorsthasdevelopedseveralsoftwaretoolsforcommunicationwiththeinstruments.

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 FlowPlot

 FlowView

 Flowfix

 FlowDD

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Page22

FLOW‐BUSinterface9.17.024

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Thesetoolscanbefoundat:

http://www.bronkhorst.com/en/products/accessories/software_tools/

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5.1 COMMUNICATIONWITHFLOW‐BUSTHROUGHFLOW‐BUSDDESERVER

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Together with a client‐application, either self‐made or with a SCADA‐program from 3rd‐parties. Examples: Genesis,

Fix‐MMI,LotusMeasure,Paragon,Wizcon,LabView,Intouch.Thisoptionisfarmostconvenient,lesscostfulandmost

user friendly. The FLOW‐BUS DDE server also offers a lot of test facilities and user adjustable settings for efficie

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communicationwithdevicesconnectedtotheFLOW‐BUS.

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Advantage:

Verypowerful,fastcommunication,nospecialknowledgeneededfrombus‐protocolandbus‐system,

supportedbyBHT

Disadvantage:

notreally,dependsondemandsofuser:

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Programmingexamplesareavailableformakingapplicationsin:VisualBasic,LabViewandExcel.

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Largesystemswithneedofveryhighupdateratesofdata(within<1sec.)arenotpossible.

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5.2 COMMUNICATIONWITHFLOW‐BUSDIRECTLYTHROUGHDLL

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PartofthisFLOW‐BUSsoftwareisa32‐bitDLL.Youmaycallthefunctionsinthislibrarydirectlytocommunicatewith

devicesontheFLOW‐BUS.Furtherdocumentationmaybeorderedatyourlocalsalesrepresentative.

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Advantage:

Powerfulroutinesavailableforfastcommunication,lessoverhead,lowprocessorload

Disadvantage:

Knowled

geneededfromFLOW‐BUSsystemaboutparameters,processes,nodesetc.,complexsoftware

structure,notsuitedforquicklybuildinganapplication

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ProgrammingexamplesareavailableformakingapplicationsinVisualBasicandLabView.

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