CHAPTER 3: IEC 61850 COMMUNICATION PIXIT CONFORMANCE STATEMENTUR FAMILY – COMMUNICATIONS GUIDE 3-2253Table 3-234: PIXIT for Control modelID Edition Description Value / ClarificationCt2 1,2 Is the control model fixed, configurable and/or dynamic?Fixed, Configurable, or Dynamic depending onthe particular control pointCt4 1,2 Is "operate many" supported (comparesboClass)NCt9 1,2 Which additional cause diagnosis aresupported?N UnknownY Not-supportedY Blocked-by-switching-hierarchyY Select-failedY Invalid-positionY Position-reachedN Parameter-change-in-executionN Step-limitY Blocked-by-ModeN Blocked-by-processY Blocked-by-interlockingY Blocked-by-synchrocheckY Command-already-in-executionN Blocked-by-healthN 1-of-n-controlN Abortion-by-cancelN Time-limit-overN Abortion-by-tripY Object-not-selectedEdition 2 specific values:Y Object-already-selectedN No-access-authorityN Ended-with-overshootN Abortion-due-to-deviationN Abortion-by-communication-lossY Blocked-by-commandN NoneY Inconsistent-parametersY Locked-by-other-clientCt10 1,2 How to force a “test-not-ok” respond withSelectWithValue requestNot possibleCt11 1,2 How to force a “test-not-ok” respond withSelect requestNot possibleCt12 1,2 How to force a “test-not-ok” respond withOperate requestDOns:SBOns:DOes:SBOes:As per IEC 61850-8-1, clause 20.11 (“OperatorTest Not OK” shall be returned if an Operatecontrol command is issued, with TEST=TRUE,and the operation fails.)Ct13 1,2 Which origin categories are supported /accepted?Y bay-controlY station-controlY remote-controlY automatic-bayY automatic-stationY automatic-remoteY maintenanceY processCt14 1,2 What happens if the orCat value is notsupported or invalid?DOns: Operate failsSBOns: Operate failsDOes: Operate failsSBOes: Select failsCt15 1,2 Does the IED accept a SelectWithValue /Operate with the same control value as thecurrent status value?Is this behavior configurable?DOns: NSBOns: NDOes: NSBOes: NConfigurable N