Applied-motion SV7-Q-EE Manuel d'utilisateur télécharger pdf (Page 13)

6/26/2010

920‐0032a3eSCLCommunicationReferenceManual Page13

CreateYourOwnApplication

Tocreateyourownapplication,youwillneedtochooseaprogramminglanguage, learnhowSCLcommands

andresponsesareencapsulatedinUDPorTCPpackets,andlearntouseyourprogramminglanguage’s

interfacetothenetwork.SeeAppendix Bforexampl eprograms inVisualBasic6andC#.NET.

PacketFormat

eSCLisbasedonAppliedMotion’sSerialCommandLanguage(SCL),anASCII‐basedlanguagewithrootsinRS‐

232andRS‐485communication.eSCLdrivessupportthefullSCLandQ commandsets,andutilizethespeed

andreliabilityofEthernet.CommandsandresponsesareencapsulatedinthepayloadofUserDatagram

Protocol(UDP)packets,andaretransmittedusingstandardEthernethardwareandstandardTCP/IPstacks.

FordetailsonthefeaturesandcapabilitiesofSCLandQ,pleaserefertotheHostCommandReference.

SendingCommandstoaDrive

AneSCLUDPpacketconsistsofthreeparts,theheader(binary07),theSCLstring(asequenceofASCII

encodedcharacters)andtheSCLtermi nator(ASCIIcarriagereturn,13)

header SCLstring <cr>



Example:Sending“RV”

• SCLHeader=07(twobytes)

• R=ASCII82

• V=ASCII86

• <cr>(ASCIIcarriagereturn)=13

header “RV” <cr>

0 7 82 86 13



ReceivingResponsesfromaDrive

Atypicalresponseto“RV”wouldbe“RV=103<cr>”whichwouldbeformattedas

header “RV=103” <cr>

0 7 82 86 61 49 48 51 13



FurtherReading

Thefollowingmaterialscanbedownloadedfromwww.applied‐motion.com.



• TheeSCLUtilitywillhelpyougetfamiliarwiththeSCLlanguage.

• TheHostCommandReferencecontainsdetailedinformationabouttheSCLandQlang uages.

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Applied-motion SV7-Q-EE Manuel d'utilisateur Page 13