Delphin ProfiMessage - Page 173

ProfiMessage
tothevalidvalues.
Theentrydirectlysetstheidentifierformessagetobereceived(orsent,see
Usechannelasoutput)when7FFor1FFFFFFFisselectedforFilter.
l Mask
ThemaskfunctionsasafilterandprovidestheoptionofsettingtheCANbus
channeltoawholegroupofIDs.Therangeofinputdependsonthesettingin
Extended ID .ThefiltervalueislinkedwiththeconfiguredandreceivedID
bitbybitAND.Themessageisevaluatedwhentheconfiguredandreceived
IDhavethesamevalue,otherwiseitwillbeignored.Anidentifiergroupis
establishedwhenthebitsthataretobeignoredduringevaluationaresetto
0.Enter7FFor1FFFFFFF whenyoudonotwanttouseamaskforfiltering.
Example for mask settings
ID =0x027=100111=binary,Filter =0x24=100100binary(numberswith0x
areinhexadecimalformat);bitbybitANDoperationresultsin100100inbinary.
ThefirstfourdigitsofthelinkandIDareidentical;andonlythelasttwodigitsare
0and1.CANmessagesarethenreceivedwithIDsthatbeginwith1001(binary)
andendwitheithertwozeroesortwoones,i.e.allmessageswiththe(binary)IDs
100100,100101,100110and100111.
Start position in payload data
l Byte offset
Thelengthofthepayloaddata,i.e.thesizeofthedatafield(DATA)ofaCAN
message,islimitedtoamaximumof8bytes.Thisallowsmultiplesignalsto
betransmittedwithinaCANmessageaslongasnotallthe8bytespersignal
arebeingused(thiswouldonlybethecasewithabinary-coded64-bitfloat-
ingvalue).Enterthestartingbyteforthissignal'spayloaddataInthe
example,thevalue2meansthat,forexample,onesignalwith2bytes(bin-
ary-coded16-bitintegervalue)wouldfitbeforethecurrentsignalandtwo
signalsbehindit.
Themaximumpossiblevalueoftheoffsetisderivedfromthebitlengthofthe
datatypeandisdisplayedtotherightofthenumericfield.Inputisrestricted
tothevalidvalues,andthedefaultis0
l Bit offset
Thisfieldisavailableonlyforthebitdatatypeandbinaryencoding.Thepay-
loadbitinthisdatatypecanbebetweenthe0andseventhbyteposition.
Byteoffsetisalsoavailableforthisdatatype.Inputisrestrictedtothevalid
values,andthedefaultis0
Data type settings
l Data type
Specifiesthedatatypeforinterpretingthetransmittedpayloaddata.Bit
length, Byte orderandWord orderaresetandadjustedinrelationtothe
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Delphin Technology AG
Dezember 2015
ProfiMessage Manual