INVT VS070QS-1618MDM1

VS070QS-1618MDM1 Integrated Machine High-speed counter
202403 (V1.0) 34
B.3 Usage methods of the high-speed counters
B.3.1 1PH single-end counting input high-speed counter
Features: A counter starts to count only when the pulse input changes from OFF to
ON, and the count direction is determined by its corresponding special auxiliary
relay SM. An example of the action is shown in the following figure.
The time sequence chart of the contact actions in the program is shown in the
following figure.
When X11 and X6 are ON, X2 is ON,
C244 is cleared, and the contact is
reset.
Note:
1. Counter input points: X0.
2. High-speed counters, when used in DHSCS, DHSCR, DHSZ, DHSP, and DHST commands, can trigger operations or
controls free from the scan cycle.
When X12 changes from OFF to ON, SM244 is ON,
and C244 counts down.
When the count value of C244 reaches 3, state of C244
contact changes.
When X11 and X6 are ON, C244 starts to count.
When X12 and SM244 are OFF, C244 counts up.
When X10 is ON, C244 is reset regardless of X11 and X6.
C244
contact
C244
SM244
X12
X0
X10
X6
X11
X2
3
0
1
2
3
4
5
4
3
2
1
0
-1
-2
-3
-4
-5
-4
0