VIPA System 300S - Page 162

Main counting direction backwards
n The counter counts backwards starting with the load value.
n When the counter reaches the end value +1 in negative direction,
it jumps to the load value at the next negative count pulse and the
gate is automatically closed.
n T
o restart the count process, you must create a positive edge of
the gate. The counter starts with the load value.
Limits Valid value range
Limit value
-2 147 483 648 (-2
31
)
to +2 147 483 646 (2
31
-2)
Upper count limit
+2 147 483 647 (2
31
-1)
No main counting direction
n The counter counts forward or backwards starting with the load
value.
n At over- or underrun at the count limits, the counter jumps to the
according other count limit and counts from there on.
n The count limits are set to the maximum count range.
Count Periodically
VIPA System 300SDeployment I/O periphery
Counter - Functions
HB140 | CPU | 314-6CF03 | GB | 16-43 162