Added double curly braces for pragma (kept single curly braces for compatibility). Added macro def and undef surrounding pragma to simplify user code. Moved useless comment from generated code back to code generator.
FUNCTION_BLOCK RAMP
VAR_INPUT
RUN : BOOL ; (* 0 - track X0, 1 - ramp to/track X1 *)
X0,X1 : REAL ;
TR : TIME ; (* Ramp duration *)
CYCLE : TIME ; (* Sampling period *)
END_VAR
VAR_OUTPUT
BUSY : BOOL ; (* BUSY = 1 during ramping period *)
XOUT : REAL := 0.0 ;
END_VAR
VAR XI : REAL ; (* Initial value *)
T : TIME := T#0s; (* Elapsed time of ramp *)
END_VAR
BUSY := RUN ;
IF RUN THEN
IF T >= TR THEN BUSY := 0 ; XOUT := X1 ;
ELSE XOUT := XI + (X1-XI) * TIME_TO_REAL(T)
/ TIME_TO_REAL(TR) ;
T := T + CYCLE ;
END_IF ;
ELSE XOUT := X0 ; XI := X0 ; T := t#0s ;
END_IF ;
END_FUNCTION_BLOCK