FUNCTION "Freq_To_mmH2O" : Real { S7_Optimized_Access := 'FALSE' } AUTHOR : 'Author' FAMILY : 'Function' NAME : 'Name' VERSION : 1.0 VAR_INPUT i_Freq : Real; i_K_freq : Real; END_VAR BEGIN #Freq_To_mmH2O := SQR(#i_Freq) * #i_K_freq ; END_FUNCTION