BRONKHORST FlowDDE - Page 9

BRONKHORST®
Page9FlowDDE     9.17.067
Forcommunication with FLOW‐BUS through other ways thanDDE,directly via RS232ASCII‐stringsor via C‐libraries,
usetheparameternumbersfortheFLOW‐BUSmodules(incolumnFBnrofParameterpropertiestable).Alsoyouwill
needtoknowthenodeaddressoftheinstrumentontheFLOW‐BUS,
theprocessnumberandtheparameternumber
ontheinstrument.
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ThenodeaddressisthenodeaddressoftheinstrumentontheFLOW‐BUS.RS232interfacesacceptnodeaddress128.
Whensendingmessagestonodeaddress128,themessagewillalwaysbeaccepted,regardlessthetruenodeaddress
ofthe
instrumentonthebus.
Theprocesscanbefoundintheparametertableorhastobedeterminedwhennothingisfilledin.Inthat case,the
processnumbermostoftenis1,butondeviceswithe.g.multiplesensorchannels,theprocesswillbe1forthefirst
channel,
2forthesecond,andsoonupto32.Onthesemodulesalsoprocess33,65and65aremultipliedinthisway.
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Itisimportanttoknowthatnotallparametersareavailableonall(FLOW‐BUS)instruments.
Formoredetailsaboutparametersandtheiruseseealsothetechnicaldocumentationofyour
instrument.TheBronkhorst®softwareapplicationFlowDDEalsogivesanoverviewofwhichparameters
areavailableonwhichdevices.
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