(* @PATH := '\/Functions_Collection' *) (* @SYMFILEFLAGS := '0' *) FUNCTION PPM_O2 : REAL VAR_INPUT i_Temp : REAL ; (* Temperature *) END_VAR VAR a : REAL := 0.00353376 ; b : REAL := -0.33438937 ; c : REAL := 14.38695088 ; END_VAR (* @END_DECLARATION := '0' *) PPM_O2 := i_Temp * i_Temp * a + i_Temp * b + c ; END_FUNCTION