Emerson Micro Motion 9739 MVD

QuickstartwithProLinkII
10.SetMasterasappropriate:
OptionDescription
SecondaryUsethissettingifanotherhostsuchasaDCS
isonthenetwork.
PrimaryUsethissettingifnootherhostisonthe
network.TheFieldCommunicatorisnota
host.
11.ClickConnect.
Iftheconnectionissuccessful:
•Thestatusbarinthemainwindowisupdatedtoshowanactiveconnection.
•TheProcessVariableswindoworCommissioningWizardwindowisdisplayed.
Ifanerrormessageappears:
•EnsurethatyouareusingthecorrectCOMport.
•CheckthephysicalconnectionbetweenthePCandthetransmitter.
•Forlong-distancecommunication,orifnoisefromanexternalsourceinterfereswiththe
signal,install120-Ω½-Wterminatingresistorsinparallelwiththeoutputatbothendsofthe
communicationsegment.
3.2.5MakeaModbus/RS-485connection
Prerequisites
Youwillneedthefollowing:
•Aninstalled,licensedcopyofProLinkII
•AnavailableserialorUSBport
•Oneofthefollowingtypesofsignalconverters:
−RS-232toRS-485signalconverter
−USBtoRS-485signalconverter
•Adaptersasrequired(e.g.9-pinto25-pin)
Procedure
1.AttachthesignalconvertertoyourPC’sserialorUSBport.
2.Atthetransmitter,removethehousingcovertoaccesstheRS-485terminalconnections.
Ifthetransmitterisinahazardousarea,donotremovethehousingcoverwhile
powerisbeingsuppliedtotheunit.Removingthehousingcoverwhilepoweris
suppliedtotheunitcouldcauseanexplosion.Toaccesstransmitterinformationina
hazardousenvironment,useacommunicationmethodthatdoesnotrequireremoving
thetransmitterhousingcover.
3.Toconnectdirectlytothetransmitter,connecttheleadsonyoursignalconvertertoterminals26
(RS-485/A)and27(RS-485/B)onyourtransmitter.SeeFigure3-8.
ConfigurationandUseManual
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