Each counter always starts at 0. When the counter counts forward and reaches the upper
count limit and another counting pulse in positive direction arrives, it jumps to the lower
count limit and counts from there on. When the counter counts backwards and reaches
the lower count limit and another counting pulse in negative direction arrives, it jumps to
the upper count limit and counts from there on. The count limits are set to the maximum
count range.
Limits
Valid value range
Lower count limit
-2 147 483 648 (-2
31
)
Upper count limit
+2 147 483 647 (2
31
-1)
With
overflow
or
underflow
the status bits STS_OFLW respectively STS_UFLW are set.
These bits remain set until these are reset with RES_SET in the
control word
.
Count continuously
VIPA System SLIO
Deployment
Counter functions
HB300 | FM | 050-1BB30 | en | 20-40
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