BRONKHORST FlowDDE - VIEW AND EDIT PARAMETERS

BRONKHORST®
Page13FlowDDE     9.17.067
 Showdate,time,msec.inmainwindowofFlowDDEforeachline.
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Several advanced settings are available for troubleshooting purposes. Some applications do not support enabling
thesesettings.Ifyouexperienceproblems,disabletheseoptions:
 Enableindirectpolling:eachFLOW‐BUSinstrumentkeepstrackofwhichparameters
are changedbyitselfor
anyotherinstrument.Parameter81showstheprocessinwhichaparameterischanged.Whenthisoptionis
enabled,FlowDDEreadsparameter81andpollstheprocessesthatare changed,soapplicationsdon’tneed
topolltheparametersthemselves.Note:thisoptionslowsdowncommunication,
asmuchmoredataisread
fromtheFLOW‐BUS.
 Enablecommunicationtounavailableparameters:DDEitemsarecreatedforparametersabovenumber237
whentheinstrumentdoesnotcontaintheparameter.Closeandopenthecommunicationafterchangingthis
setting.
 Ignore database restrictions: FlowDDE doesn’t generate errors
 based on the parameter information in its 
database(seechapter3and6),butreadsandwritesallcommandtotheinstrument.Whentheinstrument
returnsanerror,thaterrorisshown.
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4.3.3 Simulationmode
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InsimulationmodeonlyDDE‐communicationwithavirtualsystemstoredinthedatabaseispossible.Thiscanbeused
whenyoudon’thaveaFLOW‐BUSsystemavailable.ParametervaluescanbereadandwritethroughDDEbyyour
client.Onlycontrollersaresimulatedinthismode.Sendingasetpointwillresultinthesamevalueformeasureaftera
fewseconds.
Simulationstart‐up:
- Start‐upFLOWDDE.EXE,byclickingtheicon
- Select[Server][Simulate]
- Waituntilmessage"Simulation=ON"
‐Start‐upyourclientapplication
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4.4 VIEWANDEDITPARAMETERS
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AllparametersanyBronkhorst®instrumentcanhavearestoredinthedatabaseofFlowDDE,whichisusedforcorrect
communicationtotheinstruments.Thecontentsofthisdatabasecanbeviewedandedited.
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4.4.1 Viewparametersandvalues
The list of parameters and its properties as described in chapter 3 can be viewed by Info >> Parameter list. The
meaningofthevaluesofseveralparameters,canbeviewedbyInfo>>Parametervaluelist.
Toviewtheparametersthatamodule(instrument)canhave,opentheView
modules/parameterswindowfromthe
FLOW‐BUSmenu.SelectthecorrectmoduleandclicktheViewparametersbutton.
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