16.10 IEC 61850-8-1 redundant station bus communicationFunction description IEC 61850identificationIEC 60617identificationANSI/IEEE C37.2device numberSystem component for parallelredundancy protocolPRPSTATUS - -16.10.1 FunctionalityRedundant station bus communication according to IEC 62439-3 Edition 2 is available asoption in the Customized 650 Ver 1.3 series IEDs, and the selection is made at ordering.Redundant station bus communication according to IEC 62439-3 Edition 2 uses both portsLAN1A and LAN1B on the COM03 module.Select COM03 for redundant station bus according to IEC 62439-3Edition 2 protocol, at the time of ordering.IEC 62439-3 Edition 2 is NOT compatible with IEC 62439-3 Edition 1.16.10.2 Principle of operationThe redundant station bus communication is configured using the local HMI, MainMenu/Configuration/Communication/TCP-IP configuation/ETHLAN1_AB. Thesettings are also visible in PST in PCM600.The communication is performed in parallel, that is the same data package is transmittedon both channels simultaneously. The received package identity from one channel iscompared with the data package identity from the other channel. If the identity is the same,the last package is discarded.PRPSTATUS supervises redundant communication on the two channels. If no datapackage has been received on one or both channels within the last 10 s, the output LAN1-A and/or LAN1-B are set to indicate error.Section 16 1MRK 502 048-UUS AStation communication656Technical manual