Section 2 Modbus data mappings2.1 OverviewThis document describes the Modbus data points and structures available in theprotection relay. The point lists describe a superset of all data available through thestandard configuration/s including the optional functionalities.The majority of the Modbus data points are valid for all standard configurations. Somedata points are standard configuration-dependent or optional application-dependentand thus not available in each protection relay. The unavailable, that means, unused,data points always return value 0 when they are read. The configuration-dependentand optional data do not overlap.2.2 Supported functions2.2.1 Supported functions in RET615Table 2:Supported functionsFunction IEC 61850 A B C D E F G HTE01 TE02 TE03 TE04 TE05 TE06 TE07 TE08ProtectionThree-phase non-directional overcurrentprotection, low stagePHLPTOC1 1 HV 1 HV 1 HV 1 HV 1 HV 1 HV 1 HV 1 HVPHLPTOC2 1 LV 1 LV 1 LV 1 LV 1 LV 1 LV 1 LV 1 LVThree-phase non-directional overcurrentprotection, high stagePHHPTOC1 1 HV 1 HV 1 HV 1 HV 1 HV 1 HV 1 HV 1 HVPHHPTOC2 1 LV 1 LV 1 LV 1 LV 1 LV 1 LV 1 LV 1 LVThree-phase non-directional overcurrentprotection, instantaneous stagePHIPTOC1 1 HV 1 HV 1 HV 1 HV 1 HV 1 HV 1 HV 1 HVPHIPTOC2 1 LV 1 LV 1 LV 1 LV 1 LV 1 LV 1 LV 1 LVNon-directional earth-fault protection, lowstageEFLPTOC1 1 HV 1 HV 1) 1 HV 1 HV 1)EFLPTOC2 1 LV 1 LV 2) 1 LV 1 LV 2)Non-directional earth-fault protection, highstageEFHPTOC1 1 HV 1 HV 1) 1 HV 1 HV 1)EFHPTOC2 1 LV 1 LV 2) 1 LV 1 LV 2)Negative-sequence overcurrent protection NSPTOC1 1 HV 1 HV 1 HV 1 HV 1 HV 1 HV 1 HV 1 HVNSPTOC2 1 LV 1 LV 1 LV 1 LV 1 LV 1 LV 1 LV 1 LVResidual overvoltage protection ROVPTOV 2 HV 2 HV 2 HV 2 HVThree-phase undervoltage protection PHPTUV 2 HV 2 HV 2 HV 2 HVThree-phase overvoltage protection PHPTOV 2 HV 2 HV 2 HV 2 HVThree-phase thermal overload protection,two time constantsT2PTTR 1 HV 1 HV 1 HV 1 HV 1 HV 1 HV 1 HV 1 HVStabilized and instantaneous differentialprotection for two-winding transformersTR2PTDF 1 1 1 1 1 1 1 1Numerically stabilized low-impedancerestricted earth-fault protectionLREFPNDF 1 HV 1 LV 1 HV 1 LVTable continues on next page1MRS756878 H Section 2Modbus data mappingsRET615 15Point List Manual