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VIPA System SLIO
4.4 Counter - Functions
Overview
Main counting direction
Gate function abort/inter-
rupt
Count continuously
HB300 | FM | 050-1BB00 | en | 19-38
You may count forward and backwards and choose between the following counter func-
tions:
n
Count endless, e.g. distance measuring with incremental encoder
n
Count once, e.g. count to a maximum limit
n
Count periodic, e.g. count with repeated counter process
In the operating modes "Count once" and "Count periodic" you may define a counter
range as start and end value via the parameterization. For every counter additional
parameterizable functions are available like gate function, comparison, hysteresis and
process interrupt.
Via the parameterization you have the opportunity to define a main counting direction for
every counter. If "none" is chosen, the complete counting range is available:
Limits
Lower count limit
Upper count limit
Main counting direction forward
Upper restriction of the count range. The counter counts 0 res. load value in positive
direction until the parameterized end value -1 and jumps then back to the load value with
the next following encoder pulse.
Main counting direction backwards
Lower restriction of the count range. The counter counts from the parameterized start-
res. load value in negative direction to the parameterized end value +1 and jumps then
back to the start value with the next following encoder pulse.
An opening and closing of the SW gate abort or interrupts the count process.
Abort count process
The count process starts after closing and restart of the gate beginning with the load
value.
Interrupt count process
The count process continuous after closing and restart of the gate beginning with the last
recent counter value.
In this operating mode, the counter counts from the load value. 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 nega-
tive 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
Lower count limit
Upper count limit
Valid value range
31
-2 147 483 648 (-2
)
31
+2 147 483 647 (2
-1)
Valid value range
31
-2 147 483 648 (-2
)
31
+2 147 483 647 (2
-1)
Deployment
Counter - Functions
47
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