Logix5000SLC500通过DH方式交换数据.docx

Logix5000SLC500通过DH方式交换数据.docx

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Logix5000SLC500通过DH方式交换数据

NetworkMessageExample

SLC5/04to1756-L1processorviaDHRIO&2ENETModules

ThefollowingillustratesaSLC5/04processor（CH1DH+node76）sendingamessagetoa1756-L1

ControlLogixprocessor（slot0）.ThemessagewillpassthruaDHRIOmodule,aControlLogixchassis

（Gateway）andaENETmoduletoanotherENETmoduleinanotherControlLogixchassis.Inorderforthe

messagetopassthroughthenetworkaDHRIORoutingtablemustexist!

DHRIORoutingtablecreation

TocreateaDHRIORoutingtableopenupRSLinxandunderCommunicationselectRSWho.

SelectadriverthatwillallowyoutoseeandconnectuptotheDHRIOmodule.

RightClickyourmouseontopoftheDHRIOmoduleandadropdownboxwillopen.

SelectModuleConfigurationbyclickingwiththeleftmousebutton.

SelectDHRIORoutingTabletab.Ifnoroutingtablehasbeencreatedthefollowingshouldappear.

RightclickonBackplaneandthanleftclickonEditModule.

EntertheLinkIDfortheControlLogixBackplane.

ClickonOK.

RightClickon1756-DHRIOandthanLeftClickonEditModule.

EntertheslotnumberfortheDHRIOmoduleandaLinkIDforeachCH.

ClickonOK.

RightClickonBackplaneandthanLeftClickonAddModule.

Select1756-ENETmodule.

ClickonOK.

EntertheslotnumberandaLinkIDfortheEthernetmodule.

ClickonOK.

RightClickonENETLinkandthanLeftClickonAddModule.

Select1756-ENETModuletypeandthanClickonOK.

EntertheIPaddressofthe2ndENETmoduleandthebackplaneofthe2ndControlLogixchassis.

ClickonOK.

ClickonApplyandselectYestodownloadchanges!

ClickonOK.

TheDHRIOConfigurationshouldnowresemblethefollowing:

RSLogix5000TagcreationandSLCMapping

UsingRSLogix5000softwarecreatethecontrollertagslc_data.

DoubleclickonControllerTags,selectEditTagsandenterthenameofthetagtobecreated.

MakesurethattheTypeissetforINTandArrayDimensionsforDim0issetfor5!

SelectlogicfromthetoolbarinRSlogix5000andthenMapPLC/SLCMessagesfromthedropdownmenu.

Enterthefile#youwishtoassociatewithtagslc_data.

Inthisexamplefile9isusedandwillbeaddressedasN9:

0-4intheSLCmessage.

Thefollowingladderprogramwillcontinuouslyre-sendtheMSGinstruction.

ThefollowingistheMSGSetup.

Inthisexample5wordsofdatawillbewrittenfromtheSLC5/04processorstartingatwordN12:

50tothe2nd1756-L1processor（100.100.113.2）ataddressN9:

0-4.

LocalBridgeAddress:

istheDH+nodeaddressofthe1756-DHRIOmodule.

RemoteBridgeAddressisnotrequiredifthetargetdeviceisremote-capable.

RemoteStationAddressistheslotnumberofthe1756-L1processorinthecontrollogixchassis

RemoteBridgeLinkIDisthebackplanelinkidassignedinthereceivingControlLogixchassis.