Simrad ST90 - Verifying the Communication with the Course Gyro

442703/B
369
Verifyingthecommunicationwiththecoursegyro
Inordertooperatecorrectly,theST90requiresinputfromacoursegyro.Thecurrent
headingisshownonthetopbarifyouhaveenabledthisintheDisplayOptionsdialog
box.Thecommunicationwiththesensoristested.
Prerequisites
Thisprocedureassumesthat:
•ThesensorisconnectedtotheST90.Itisswitchedonandinnormaloperation.
•Theinterfaceportissetupwiththecorrectcommunicationparameters.
•YouarefamiliarwithNMEAandotherrelevantdatagramformats.
•Youknowhowtosetuptheparametersforserialandlocalareanetwork(LAN)
communication.
•Thevesselisberthedoratsea.
•Allrelevantvesseldrawings,installationreportsand/ormeasurementresultsare
available.
•TheST90isturnedon,anditisworkingnormally.
Neithertoolsnorinstrumentsarerequired.
Context
Note
TheinputfromacoursegyroisessentialforST90operation.Withouttheinputfroma
coursegyro,theST90willnotbeabletopresentcorrectnavigationalinformation.This
lackofcompensationwillpreventtheST90fromprovidingcorrectechoinformation.
Inmostcasesasuitablecoursegyroisalreadyinstalledonthevessel.Aglobal
positioningsystem(GPS)withacompatibleoutputformatcanalsobeused.
ThepropertiesofeachoftheavailablecommunicationportsaredenedontheI/OSetup
page.TheSensorInstallationpageallowsyourST90tocommunicatewithexternal
sensorsandsystems.Tomakesurethattheinformationfromthe"mostreliable"sensors
areusedbytheST90,usetheSensorCongurationpagetodeneadatagrampriorities.
ThecommunicationparametersdenedforNMEA0183are:
•BaudRate:4800b/s
•DataBits:8
•Parity:None
•StopBits:1
Procedure
1OpentheSetupmenu.
Settingtowork