ABB IEC 60870-5-103 Communication Protocol Manual

Also see for IEC 60870-5-103: Communication protocol manual Communication protocol manual

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If EventRepMode = HiPriSpont, spontaneous events will be delivered prior to GIevent. To prevent old GI data from being delivered after a new spontaneous event,the pending GI event is modified to contain the same value as the spontaneousevent. As a result, the GI dataset is not time-correlated.3.2.1 IEC 60870-5-103 time synchronization GUID-58312C51-3727-4125-81F3-7440BEBD9728 v5An IED with IEC 60870-5-103 protocol can be used for time synchronization, butfor accuracy reasons, it is not recommended. In some cases, however, this kind ofsynchronization is needed, for example, when no other synchronization isavailable.First, set the IED to be synchronized via IEC 60870-5-103 either from IEDConfiguration/Time/Synchronization/TIMESYNCHGEN:1 in PST or from thelocal HMI.GUID-68284E7B-A24D-4E78-B5BA-736B29F50E9A V2 EN-USFigure 4: Settings under TIMESYNCHGEN:1 in PSTOnly CoarseSyncSrc can be set to 103, not FineSyncSource.After setting up the time synchronization source, the user must check and modifythe IEC 60870-5-103 time synchronization specific settings, under Main menu/Configuration/Communication/Station communication/IEC60870-5-103.• MasterTimeDomain specifies the domain of time sync sent by the master. Italso defines the domain in which time stamps are delivered to the master.(Format is CP56Time2a or CP32Time2a). Domain can be:• Coordinated Universal Time (UTC)• Local time set in the master (Local without DST)• Local time set in the master adjusted according to daylight saving time(Local with DST)• TimeSyncMode specifies the time sent by the IED. The time synchronisation isdone using the following ways:• IEDTime: The IED sends the messages with its own time.• LinMastTime: The IED measures the offset between its own time and themaster time, and applies the same offset for the messages sent as in the1MRK 511 394-UEN A Section 3IEC 60870-5-103 communication engineering670 series 2.2 IEC 19Communication protocol manual