BW宝华韦健音箱和低音炮 DB1 RS-232 指令代码.pdf

DB1Subwoofer

RS-232Interface

Instructions

1ControllingDB1viatheRS-232Port

1.1Location

TheDB1canbecontrolledviatheRS-232port,whichusesastandardD9femaleconnector.

TheRS-232portislocatedontherearconnectorpanel.

1.2RS-232CommunicationParameters

TheRS-232parametersettingsare:

•9600baud

•8databits

•noparity

•1stopbit

•nohandshaking(flowcontrol)

1.3CommandProtocol

TheDB1canbecontrolledbysendingstringsofcharactersviatheserviceport.

Everystringconsistsof:

•Thecommandsetorget

•Oneormoredecimaldigitsthatspecifytheparametertobechanged

•Forthesetcommand:oneormoredigitsthatspecifytheparametervalue

•CR(theASCIIcarriagereturncharacter,13decimal)

•LF(optional–theASCIIlinefeedcharacter,10decimal)

TheDB1repliestoavalidcommandwith:!CRLF

Thisreplymaybefollowedbyanothermessagecontaininginformationifthatwasrequested

byagetcommand.

Foraninvalidcommand,theDB1replies:?CRLF

1.4CommandList

EachcommandstringshouldbeterminatedwithCRandoptionallyLF.Inthetablesof

commandsandresponsesbelow,theASCIIspacecharacter(32decimal)isindicatedby

SP

ThefollowingcommandsareusedtorequestinformationfromtheDB1:

CommandDescriptionReplyfromDB1

getSP6Requestsastring!CRLF

describingthemodelSYSPVALUSP”DB1”CRLF

getSP7Requeststhesoftware!CRLF

versionSYSPVALUSP”n.n.n.n”CRLF

wherenrepresentsoneormoredecimal

digits0..9

getSP148Re