Te-technology TC-36-25-RS485 User Manual download pdf (Page 42)

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APPENDIXB:TroubleshootingCommunications

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TroubleshootingRS485

Whenyouinitialize,anerrormessagemyshowupifthereisanyadditionalproblems.Thefollowingtableofferspossible

solutionscorrespondingtoaparticularerror:

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ErrorMessage PossibleCause Solution

ZeroControllersFound NopowertoTC‐36‐25 RS485 unit ApplypowertoTC‐36‐25 RS485,

reviewcustomer‐hookupdrawingfor

properhookup

ZeroControllersFound RS485SEARCHTOAddressistoolow Settoahighervalue

ZeroControllersFound WrongCOMPortselected Checkcomputerhardwaresettingand

settothecorrectCommPort

VISAReadError FramingErrorduringtransferofdata ClickContinuetoresumeprogram

operation

Comm.PortNotResponding IncorrectwiringofCommPorttothe

converterorcomputer

Checkforcorrectwiringofthe

convertertothecomputer,review

converterspecifications&computer

forproperhookup*

Comm.PortNotResponding ConverterisnotconnectedtoTC‐36‐

25RS485

Checkforcorrectconnectionofthe

convertertoTC‐36‐25RS485,review

converterspecifications&TC‐36‐25

RS45customerdrawingforproper

hookup

Comm.PortNotResponding Incorrectwiringoftheconverterto

TC‐36‐25RS485

Checkforcorrectwiringofthe

convertertoTC‐36‐25RS485,review

converterspecifications&TC‐36‐25

RS485customerdrawingforproper

hookup

Comm.PortNotResponding RS485Adaptorincorrectlyornot

installed

ReinstallorinstallRS485Adapter

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*Seethe“RS485CommunicationsConnections”aboveforthecorrectconnections.TheDATA+fromthecomputer

connectstotheDATA–ofthecontroller;likewisetheDATA–fromthecontrollerconnectstotheDATA+ofthe

controller.

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Thecontrollerwillnotcommunicatewiththecomputeriftheportsettingsareincorre

ct.

TheportsettingsfortheRS485

controllerare:

BaudRate–115200

DataBits–8

Parity–None

StopBits–1

FlowControl–None

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Te-technology TC-36-25-RS485 User Manual Page 42

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