User manual

SimradES70
17Cb=cablequality:
•0=cableisnotconnected
•1=cableisOK
•2=ashortcircuit,orthehydrophonecurrentistoolarge
18error=errordetected–0whennoerrorisdetected,anumber>0indicatesanerror
condition
19chksum=Thechecksumeldconsistsofa"*"andtwohexdigitsrepresentingthe
exclusiveORofallcharactersbetween,butnotincluding,the"$"and"*"characters
PSIMDHBBottomhardnessandbiomass
ThisproprietarySimradtelegramcontainsthebottomhardnessandbiomassascalculated
byanechosounder.
Format
$PSIMDHB,hhmmss.ss,t,f,KHZ,x.x,M,y.y,DB,z.z,,,<CR><LF>
Formatdescription
1$P=talkeridentier(mandatory)
2SIM=SimradtalkerID
3DHB=coordinateduniversaltime(UTC)
4hhmmss.ss=time
5t=transducernumber
6f,KHZ=echosounderfrequencyinkHz
7x.x,M=detectedbottomdepthinmeters.GivenasDBS(depthbelowsurface),
assumingpropertransducerdrafthasbeenentered.
8y.y,DB=bottomsurfacehardnessindB
9z.z=relativebiomassdensityinm²/nmi²(NASC)(s
A
)
NASCmeansNauticalAreaScatteringCoefcient.Thisistheformat(s
A
m²/nmi²)
weprovidethebiomassdata.
10spare1=spareforfutureexpansions
11spare2=spareforfutureexpansions
SimradSounder/TSS1Motionprotocol
ThisproprietarySimradSounder/TSS1protocolmaybethemostcommoninterfacefor
heave,rollandpitchcompensation.Whenyouselectthisprotocol,thenumberofsensor
variablesisxed,andthereisnotokenassociatedwithit.However,baudrateandoutput
ratemaybeadjustedtotyourneeds.TheformatisbasedonASCIIcharacters,the
datagramshavexedlength,anditisterminatedwithacarriagereturnandlinefeed.
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338106/C