ABB IEC 61850 Edition 2 Communication Protocol Manual

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The mandatory data objects as defined in IEC 61850-7-4 as part of the CommonLogical Node are Mode, Behavior, Health and NamePlate. Mod, Health andNamePlate are mandatory only in the root LLN0, and optional in all other LNs.ModeOnly On and Off are supported on all LNs except for LD0/LLN0, where On,Blocked, Test, and Test-Blocked are supported. Beh can then get all the possiblevalues (On, Blocked, Test, Test-blocked and Off) as a result of Mod on the RootLLN0 and the individual LNs.The operation modes ON (enabled) and BLOCKED are supported remotely by acommand or locally from the LHMI of the IED.If the setting “RemoteModControl” is set to “Off” (default), allremote writes to Mod will be rejected.BehaviourThe operational mode as given by the Mode control is shown in the data object Behaccording to priority rules described for Beh in clause 6 of IEC 61850-7-4.The Beh shows the actual state of the function depending on the hierarchydescribed in clause 6 of IEC 61850-7-4.It is possible that the behavior is influenced also by other sources independent fromthe Mod, for example Insertion of the test handle, loss of SV, IED configurationtool (PCM600), or LHMI.In case the setting “operation” of a function is set to Off from the LHMI orPCM600, the Beh will be set to Off independent of the value of the Mod.The state Off can be set from the LHMI or the PCM600 for the functions havingthe setting “operation”.The TEST and the TEST/BLOCKED mode can be operated locally from the LHMIor by using PCM600.HealthHealth will reflect the current status of the IED HW and configuration. Possiblevalues are: OK, Warning, and Alarm.Health indicates OK, Warning, or Alarm, depending on the IED status.NamePltThe name of the logical node and its relation to namespace definition are shown inthe data object NamePlt as specified for the SCL structure.Section 7 1MRK 511 393-UEN ALogical node data model46 670 series 2.2 IECCommunication protocol manual