Draft61850-7-3©1EC:2002 -11-57WG10-12(61850-7-3)R7.10/DraftFDIS 5 Conditions for attribute inclusion This clause lists general conditions that specify the presence of an attribute. Abbreviation Condition M Attribute is mandatory 0 Attribute is optional PICS_SUBST Attribute is mandatory,if substitution is supported(For substitution,see IEC 61850-7-2) GC_1 At least one of the attributes shall be present for a given instance of DATA GC_2(n) All or none of the data attributes belonging to the same group(n)shall be present for a given instance of DATA. GC_CON A configuration data attribute shall only be present,if the (optional)specific data attributes to which this configuration relates,is present as well AC EXT The attribute shall be present,if the common data class is extended with private attributes. Otherwise,the attribute shall not be present. AC_LNO_M Applies to IdNs in CDC LPL only,IdNs shall always be present if the data object belongs to logical node LLNO,otherwise not AC_DLD_M Applies to InNs in CDC LPL only.InNs shall be present if the name space of the LN deviates from the name space defined in ldNs AC_DLN_M Applies to dataNs in all CDCs,dataNs shall be present if the name space of the DATA deviates from the name space defined in ldNs/InNs. AC_DLNDA_M The attribute shall be present,if the name space of the CDC deviates from either the name space defined in IdNs/InNs or the name space defined in dataNs,or both. AC_SCAV That configuration data attribute shall be present for a given data object,if i and f of the analogue value of the data attribute to which this configuration attribute relates are both present.It shall be optional,if only i is present and it is not required,if only f is present. NOTE-If only i is present in a device without floating point capabilities,the configuration parameter may be exchanged offline. AC_ST The attribute is mandatory,if the controllable status class supports status information AC_CO_M The attribute is mandatory,if the controllable status class supports control AC_CO_O The attribute is optional,if the controllable status class supports control AC_SG_M The attribute is mandatory,if setting group is supported AC_SG_O The attribute is optional,if setting group is supported AC_NSG_M The attribute is mandatory,if setting group is not supported AC_NSG_O The attribute is optional,if setting group is not supported AC_RMS_M The attribute is mandatory when the harmonics reference type is rmsDraft 61850-7-3  IEC:2002 – 11 – 57/WG10-12(61850-7-3)R7.10/DraftFDIS 5 Conditions for attribute inclusion This clause lists general conditions that specify the presence of an attribute. Abbreviation Condition M Attribute is mandatory O Attribute is optional PICS_SUBST Attribute is mandatory, if substitution is supported (For substitution, see IEC 61850-7-2) GC_1 At least one of the attributes shall be present for a given instance of DATA GC_2 (n) All or none of the data attributes belonging to the same group (n) shall be present for a given instance of DATA. GC_CON A configuration data attribute shall only be present, if the (optional) specific data attributes to which this configuration relates, is present as well AC_EXT The attribute shall be present, if the common data class is extended with private attributes. Otherwise, the attribute shall not be present. AC_LN0_M Applies to ldNs in CDC LPL only, ldNs shall always be present if the data object belongs to logical node LLN0, otherwise not AC_DLD_M Applies to lnNs in CDC LPL only, lnNs shall be present if the name space of the LN deviates from the name space defined in ldNs AC_DLN_M Applies to dataNs in all CDCs, dataNs shall be present if the name space of the DATA deviates from the name space defined in ldNs/lnNs. AC_DLNDA_M The attribute shall be present, if the name space of the CDC deviates from either the name space defined in ldNs/lnNs or the name space defined in dataNs, or both. AC_SCAV That configuration data attribute shall be present for a given data object, if i and f of the analogue value of the data attribute to which this configuration attribute relates are both present. It shall be optional, if only i is present and it is not required, if only f is present. NOTE – If only i is present in a device without floating point capabilities, the configuration parameter may be exchanged offline. AC_ST The attribute is mandatory, if the controllable status class supports status information AC_CO_M The attribute is mandatory, if the controllable status class supports control AC_CO_O The attribute is optional, if the controllable status class supports control AC_SG_M The attribute is mandatory, if setting group is supported AC_SG_O The attribute is optional, if setting group is supported AC_NSG_M The attribute is mandatory, if setting group is not supported AC_NSG_O The attribute is optional, if setting group is not supported AC_RMS_M The attribute is mandatory when the harmonics reference type is rms