Delphin ProfiMessage - Page 201

ProfiMessage
plement)or0to255.Floatingvaluesarealwaysinterpretedassigned.Bit-
valuesmakenodistinctionbetweensignedandunsigned.
l Bit length
Setsthebitlengthsforintegerandfloatingdatatypes.Byte sequence and
Word sequence areadjustedaccordingtolengthvalue.Thisalsoappliesto
thenumericfieldsintheStartpositionindata.
l Encoding type
Displaystheencodingtypeusedforinterpretingthetransmittedpayload
data.Binary (thereceivedbytesareinterpretedasbinarydata),ASCII
(ASCIIcharacters,i.e.text)orASCIIHex (thereceivedASCIIcharactersare
interpretedashexadecimalspairs).Thedataisconvertedintothegivendata
typeafterbeingreceived.
l Byte sequence
Thebyteorder(bytesequence)isanumber,madeupofseveralbytes,that
setshowbytesareorderedfortheaddress.BigEndian,alsoknownas
Motorolaformat,ordersthemostsignificantbytetothelowestaddress.
LittleEndian,alsoknownasIntelformat,orderstheleastsignificantbyteto
thelowestaddress.
Referalsotohttp://en.wikipedia.org/wiki/Endianness.
l Word order
Likethebyteorder,wordorderordersworddata(1word=2bytes=16
bits)toaddresses.Inadditiontodeterminingbyteorder,adifferentword
orderingmaybenecessary.
l Byte pattern
Todisplaythedifferentbyteandwordordercombinations,ahexvalue(aran-
domnumberintheexample)isshownwiththeresultingbytepatternofa
message.
Scaling
Ifthesentvaluesrequireconversion,enableScaling andenterMin / Max valuesto
convertfromtheMeasurement valueintotheScale value .
Withoutscaling,thechannel'sData typeisusedWhenscalingis
enabled,thefloatingdatatypeisalwaysusedforthechannel.
Scaling example
Intheaboveimage,aconversiontakesplacefrom2000(integervalue)to200
(°C),i.e.itreturnsadecimalpointdespitetransmissionofaninteger(wholenum-
ber).
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Delphin Technology AG
Dezember 2015
ProfiMessage Manual