FB_HVACNOVRAM_Real
VAR_INPUT
bSetDefault : BOOL;
rVar_Default : REAL; bSetDefault: if the variable is TRUE, the value of the input variable rVar_Default is adopted.
rVar_Default: default value defined by the user. The variable is of the data type REAL.
VAR_IN_OUT
rVar : REAL; rVar: variable that is programmed fail-safe by the user.