IEC60870part5[1]isoneoftheIEC60870setofstandardswhichdefinesystemsusedfortelecontrol(supervisorycontrolanddataacquisition)inelectricalengineeringandpowersystemautomationapplications.Part5providesaco妹妹unicationprofileforsendingbasictelecontrolmessagesbetweentwosystems,whichusespermanentdirectlyconnecteddatacircuitsbetweenthesystems.TheIECTechnicalCo妹妹ittee57(WorkingGroup03)havedevelopedaprotocolstandardfortelecontrol,teleprotection,andassociatedteleco妹妹unicationsforelectricpowersystems.TheresultofthisworkisIEC60870-5.FivedocumentsspecifythebaseIEC60870-5:IEC60870-5-1TransmissionFrameFormatsIEC60870-5-2DataLinkTransmissionServicesIEC60870-5-3GeneralStructureofApplicationDataIEC60870-5-4DefinitionandCodingofInformationElementsIEC60870-5-5BasicApplicationFunctionsIEC60870-5-6GuidelinesforconformancetestingfortheIEC60870-5companionstandardsIECTS60870-5-7SecurityextensionstoIEC60870-5-101andIEC60870-5-104protocols(applyingIEC62351)TheIECTechnicalCo妹妹ittee57hasalsogeneratedcompanionstandards:IEC60870-5-101TransmissionProtocols-companionstandardsespeciallyforbasictelecontroltasksIEC60870-5-102TransmissionProtocols-Companionstandardforthetransmissionofintegratedtotalsinelectricpowersystems(thisstandardisnotwidelyused)IEC60870-5-103TransmissionProtocols-CompanionstandardfortheinformativeinterfaceofprotectionequipmentIEC60870-5-104TransmissionProtocols-NetworkaccessforIEC60870-5-101usingstandardtransportprofilesIECTS60870-5-601Transmissionprotocols-ConformancetestcasesfortheIEC60870-5-101companionstandardIECTS60870-5-604ConformancetestcasesfortheIEC60870-5-104companionstandardIEC60870-5-101/102/103/104arecompanionstandardsgeneratedforbasictelecontroltasks,transmissionofintegratedtotals,dataexchangefromprotecti
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