5.6.6.2.3 Main counting direction backward
n
The counter counts backward starting with the
load value
.
n
When the counter reaches the
End value
+1 in positive direction, it jumps to the
load
value
at the next count pulse and the gate is automatically closed. If enabled addition-
ally a hardware interrupt is triggered.
n
To restart the count process, you have to generate an edge 0-1 at the gate
5.6.7.2 ‘Gate function’ on page 122
. The counter counts starting with the
load value
.
n
You may exceed the upper count limit.
Limits
Valid range of values
End value
-2 147 483 648 (-2
31
)
up to +2 147 483 646 (2
31
-2)
Upper count limit
+2 147 483 647 (2
31
-1)
VIPA System SLIO
Deployment I/O periphery
Counting > Counter operating modes
HB300 | CPU | 013-CCF0R00 | en | 16-40
118
