17.9.4 SignalsTable 509:SMAI_20_1 Input signalsName Type Default DescriptionBLOCK BOOLEAN 0 Block group 1DFTSPFC REAL 20.0 Number of samples per fundamental cycle used for DFTcalculationREVROT BOOLEAN 0 Reverse rotation group 1GRP1_A STRING - First analog input used for phase L1 or L1-L2 quantityGRP1_B STRING - Second analog input used for phase B or BC quantityGRP1_C STRING - Third analog input used for phase C or CA quantityGRP1_N STRING - Fourth analog input used for residual or neutral quantityTable 510:SMAI_20_1 Output signalsName Type DescriptionSPFCOUT REAL Number of samples per fundamental cycle from internalDFT reference functionAI3P GROUP SIGNAL Grouped three phase signal containing data from inputs1-4AI1 GROUP SIGNAL Quantity connected to the first analog inputAI2 GROUP SIGNAL Quantity connected to the second analog inputAI3 GROUP SIGNAL Quantity connected to the third analog inputAI4 GROUP SIGNAL Quantity connected to the fourth analog inputAIN GROUP SIGNAL Calculated residual quantity if inputs 1-3 are connectedTable 511:SMAI_20_12 Input signalsName Type Default DescriptionBLOCK BOOLEAN 0 Block group 12REVROT BOOLEAN 0 Reverse rotation group 12GRP12_A STRING - First analog input used for phase L1 or L1-L2 quantityGRP12_B STRING - Second analog input used for phase B or BC quantityGRP12_C STRING - Third analog input used for phase C or CA quantityGRP12_N STRING - Fourth analog input used for residual or neutral quantitySection 17 1MRK 502 048-UUS ABasic IED functions688Technical manual
