Mercurial Mercurial > matiec / annotate
summary | shortlog | changelog | graph | tags | bookmarks | branches | files | changeset | file | latest | revisions | annotate | diff | comparison | raw | help
lib/hysteresis_st.txt
author laurent
Tue, 01 Sep 2009 17:01:08 +0200
changeset 199 b075f28ec081
parent 192 c6c2a3d487ac
child 276 1679f514f38a
permissions -rwxr-xr-x
Bug with type conversion EN/ENO not evaluated fixed
Removing some warnings in iec_std_lib.h
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
 












matiec