Manual Datafox ZK-MasterIV
5.2.7.5 Use as counter with Start/Stop via timeout and 1st counting impulse
When using as counter with Start/Stop via timeout and 1st counting impulse a single digital input is
allocated. It is reasonable to use the faster 1 kHz input for this, because it also functions as counter.
Furthermore it is possible to create a data record with the first counting impulse.
The input chain, assigned to first impulse and
counting impulse, is started with the first impulse
(change from Low to High) and then according to
the counter splitter. The counter splitter indicates,
how many impulses are necessary to activate the
assigned input chain. The input chain is not car-
ried out, if 0 is indicated.
If no further impulse is detected within the time
of the timeout, the input chain for the timeout is
started. A further impulse restarts the input chain
of the 1st impulse.
Figure 131: Use as counter with Start/Stop via timeout and 1st counting impulse
The debounce time indicates, how long the signal level has to remain unchanged to be detected as impulse.
This is valid for both the change of level from Low to High (starting a device) and the change of level
from High to Low (stopping a device).
The cycle indicates the interval, in which a data record is created (irrespective of an impulse ). When
stopping the machine the cycle is deactivated (as far as the machine status is Start).
Version: 04.01.07.00
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