lib/hysteresis_st.txt
author 'Gr?gory Tr?lat <gregory.trelat@lolitech.fr>'
Fri, 10 Jul 2009 11:41:29 +0200
changeset 198 f68ef6f05e17
parent 192 c6c2a3d487ac
child 276 1679f514f38a
permissions -rwxr-xr-x
prevent eclipse to push .project with .hgignore
192
c6c2a3d487ac Adding inclusion of function blocks defined in AnnexF into library blocks
lbessard
parents:
diff changeset
     1
FUNCTION_BLOCK HYSTERESIS
c6c2a3d487ac Adding inclusion of function blocks defined in AnnexF into library blocks
lbessard
parents:
diff changeset
     2
    (* Boolean hysteresis on difference *)
c6c2a3d487ac Adding inclusion of function blocks defined in AnnexF into library blocks
lbessard
parents:
diff changeset
     3
    (* of REAL inputs, XIN1 - XIN2      *)
c6c2a3d487ac Adding inclusion of function blocks defined in AnnexF into library blocks
lbessard
parents:
diff changeset
     4
  VAR_INPUT XIN1, XIN2, EPS : REAL; END_VAR
c6c2a3d487ac Adding inclusion of function blocks defined in AnnexF into library blocks
lbessard
parents:
diff changeset
     5
  VAR_OUTPUT Q : BOOL := 0; END_VAR
c6c2a3d487ac Adding inclusion of function blocks defined in AnnexF into library blocks
lbessard
parents:
diff changeset
     6
  IF Q THEN IF XIN1 < (XIN2 - EPS) THEN Q := 0; END_IF ;
c6c2a3d487ac Adding inclusion of function blocks defined in AnnexF into library blocks
lbessard
parents:
diff changeset
     7
  ELSIF XIN1 > (XIN2 + EPS) THEN Q := 1 ;
c6c2a3d487ac Adding inclusion of function blocks defined in AnnexF into library blocks
lbessard
parents:
diff changeset
     8
  END_IF ;
c6c2a3d487ac Adding inclusion of function blocks defined in AnnexF into library blocks
lbessard
parents:
diff changeset
     9
END_FUNCTION_BLOCK
c6c2a3d487ac Adding inclusion of function blocks defined in AnnexF into library blocks
lbessard
parents:
diff changeset
    10