AnnexF/hysteresis_st.txt
author Laurent Bessard
Tue, 11 Sep 2012 01:05:24 +0200
changeset 628 fe0d516fe291
parent 0 fb772792efd1
permissions -rwxr-xr-x
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.
0
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
     1
FUNCTION_BLOCK HYSTERESIS
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
     2
    (* Boolean hysteresis on difference *)
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
     3
    (* of REAL inputs, XIN1 - XIN2      *)
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
     4
  VAR_INPUT XIN1, XIN2, EPS : REAL; END_VAR
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
     5
  VAR_OUTPUT Q : BOOL := 0; END_VAR
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
     6
  IF Q THEN IF XIN1 < (XIN2 - EPS) THEN Q := 0; END_IF ;
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
     7
  ELSIF XIN1 > (XIN2 + EPS) THEN Q := 1 ;
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
     8
  END_IF ;
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
     9
END_FUNCTION_BLOCK
fb772792efd1 Initial commit. Last MatPLC CVS with some makefile inclusion removed in order to compile fine out of MatPLC.
etisserant
parents:
diff changeset
    10