author | Mario de Sousa <msousa@fe.up.pt> |
Fri, 01 Apr 2011 10:06:19 +0100 | |
changeset 264 | 6facabd9c2cd |
parent 192 | c6c2a3d487ac |
child 276 | 1679f514f38a |
permissions | -rwxr-xr-x |
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 |