Bronkhorst FLOW-BUS interface Uživatelský manuál Strana 22

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BRONKHORST®
5 FLOW‐BUSSYSTEMOPERATIONWITHCOMPUTER
Thereareseveraloptionstodothis.Firstseethat thechosenhardwareisabletocommunicatewiththeFLOW‐BUS
systemandthatthiscanbedonewithasufficientvelocityofparametertransferforyourapplication.
Bronkhorsthasdevelopedseveralsoftwaretoolsforcommunicationwiththeinstruments.
FlowPlot
FlowView
Flowfix
FlowDD
E
Page22
FLOW‐BUSinterface9.17.024
Thesetoolscanbefoundat:
http://www.bronkhorst.com/en/products/accessories/software_tools/
5.1 COMMUNICATIONWITHFLOW‐BUSTHROUGHFLOW‐BUSDDESERVER
Together with a client‐application, either self‐made or with a SCADA‐program from 3rd‐parties. Examples: Genesis,
Fix‐MMI,LotusMeasure,Paragon,Wizcon,LabView,Intouch.Thisoptionisfarmostconvenient,lesscostfulandmost
user friendly. The FLOW‐BUS DDE server also offers a lot of test facilities and user adjustable settings for efficie
nt
communicationwithdevicesconnectedtotheFLOW‐BUS.
Advantage:
Verypowerful,fastcommunication,nospecialknowledgeneededfrombus‐protocolandbus‐system,
supportedbyBHT
Disadvantage:
notreally,dependsondemandsofuser:
Programmingexamplesareavailableformakingapplicationsin:VisualBasic,LabViewandExcel.
Largesystemswithneedofveryhighupdateratesofdata(within<1sec.)arenotpossible.
5.2 COMMUNICATIONWITHFLOW‐BUSDIRECTLYTHROUGHDLL
PartofthisFLOW‐BUSsoftwareisa32‐bitDLL.Youmaycallthefunctionsinthislibrarydirectlytocommunicatewith
devicesontheFLOW‐BUS.Furtherdocumentationmaybeorderedatyourlocalsalesrepresentative.
Advantage:
Powerfulroutinesavailableforfastcommunication,lessoverhead,lowprocessorload
Disadvantage:
Knowled
geneededfromFLOW‐BUSsystemaboutparameters,processes,nodesetc.,complexsoftware
structure,notsuitedforquicklybuildinganapplication
ProgrammingexamplesareavailableformakingapplicationsinVisualBasicandLabView.
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