ABB REU 610 Technical Reference Manual

Also see for REU 610: Installation manual Technical reference manual Operator's manual Technical reference manual Operator's manual

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ABB REU 610 Technical Reference Manual Manual pdf 57 page image

57The relay has a counter which can be accessed via CONFIGURATION\COMMUNICATION in the HMI menu. The counter value is set to zero when therelay receives a valid message.5.1.14. IEC 60870-5-103 remote communication protocolThe relay supports the IEC 60870-5-103 remote communication protocol in theunbalanced transmission mode. The IEC 60870-5-103 protocol is used to transfermeasurand and status data from the slave to the master. However, the IEC 60870-5-103 protocol cannot be used to transfer disturbance recorder data.The IEC 60870-5-103 protocol can be used only through the rear connection of therelay on the optional communication module. Connecting the relay to a fibre-opticcommunication bus requires a fibre-optic communication module. The line-idlestate of the fibre-optic communication module can be selected either via the HMI orthe SPA bus. According to the IEC 60870-5-103 standard, the line-idle state is “lighton”. To ensure communication, the line-idle state should be the same for both themaster and the slave device. The connection topology can be selected to be eitherloop or star, the default being loop, and either via the HMI or the SPA bus. Theselected line-idle state and connection topology apply irrespective of which rearcommunication protocol is active.The relay uses the SPA bus protocol as default when the optional communicationmodule is in use. The protocol selection is memorized and is therefore alwaysactivated when the rear connection is in use. The baud rate can be selected either viathe HMI or the SPA bus. According to the IEC 60870-5-103 standard, the baud rateis 9.6 kbps. When the IEC 60870-5-103 protocol is active, event masks are not inuse. Consequently, all events in the selected configuration set are included in theevent reporting.The relay is provided with two different selectable configuration sets, of whichconfiguration set 1 is used by default.Configuration set 1 is intended to be used when the optional I/O module is notinstalled. Configuration set 2 includes additional information, for example outputcontact events 6...8 (SO3...SO5) and digital input events 3...5 (DI3...DI5), providedthat the optional I/O module is installed.Function type and information number are mapped into configuration sets accordingto the IEC 60870-5-103 standard to the extent that these have been defined by thestandard. If not defined by the standard, the type of function and/or the informationnumber are/is mapped into a private range.The tables below indicate the information mapping of the correspondingconfiguration sets. The column GI indicates whether the status of the specifiedinformation object is transmitted within the general interrogation cycle. The relativetime in messages with the type identification 2 is calculated as a time differencebetween the occurred event and the event specified in the column Relative time. TheVoltage RelayTechnical Reference ManualREU 6101MRS755769