Delphin ProfiMessage - Page 188

ProfiMessage
aswellasFC15/16fortheoutputs.Thesettinginfluencesthevaluesthatcanbe
configuredinDatatypesettings.
Reference:Thenumberinfrontoftheinputfieldindicatesthememorypageand
thusthetabtype.
Inputismadeindecimalformbydefault,andisrestrictedtovalidvalues.Using
Show asyoucanspecifywhethertheinputistobeused as an Addressor as a Tab
,andwhetheritshouldfollowdecimalorhexadecimal(Hex)notation.
Data type settings
ThesesettingsaredependentontheFunction codeinputsandalsoonwhetherthe
channelisaninputoroutput.
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
adoptedsetting.Start position in payload data,ScalingandUsechannelas
outputarealsosetaccordingtothedatatype.
l Signed
Setswhethertheintegerdatatypeistobeinterpretedassignedor
unsigned.An8-bitvaluewouldthenbeintherange-128to127(two’scom-
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.
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(inputchannelsonly)
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
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Delphin Technology AG
Dezember 2015
ProfiMessage Manual