Fix bug in SFC generated code. Action state was declared in the list of variables to debug, but wasn't stored using structure with flags. This error had side effects that makes Beremiz debug crash.
FUNCTION_BLOCK DELAY (* N-sample delay *)
VAR_INPUT
RUN : BOOL ; (* 1 = run, 0 = reset *)
XIN : REAL ;
N : INT (* 0 <= N < 128 or manufacturer- *)
END_VAR (* specified maximum value *)
VAR_OUTPUT XOUT : REAL; END_VAR (* Delayed output *)
VAR X : ARRAY [0..127] (* N-Element queue *)
OF REAL; (* with FIFO discipline *)
I, IXIN, IXOUT : INT := 0;
END_VAR
IF RUN THEN IXIN := MOD(IXIN + 1, 128) ; X[IXIN] := XIN ;
IXOUT := MOD(IXOUT + 1, 128) ; XOUT := X[IXOUT];
ELSE XOUT := XIN ; IXIN := N ; IXOUT := 0;
FOR I := 0 TO N DO X[I] := XIN; END_FOR;
END_IF ;
END_FUNCTION_BLOCK