VIPA System 300S - Page 170

With reaching the comparison condition the hysteresis
gets active. At
active hysteresis the comparison result remains unchanged until the
counter value leaves the set hysteresis range. After leaving the hyste-
resis range a new hysteresis is only activated with again reaching the
comparison conditions.
1 Counter value = comparison value ®
pulse of the parameterized
pulse duration is put out, the hysteresis is activated and the
counting direction stored
2 Leaving the hysteresis range contrary to the stored counting direc-
tion ® pulse of the parameterized pulse duration is put out, the
hysteresis is de-activated
3 Counter value = comparison value ®
pulse of the parameterized
pulse duration is put out, the hysteresis is activated and the
counting direction stored
4 Leaving the hysteresis range without changing counting direction
® hysteresis is de-activated
5 Counter value = comparison value ®
pulse of the parameterized
pulse duration is put out, the hysteresis is activated and the
counting direction stored
6 Counter value = comparison value and hysteresis
active ® no
pulse
7 Leaving the hysteresis range contrary to the stored counting direc-
tion ® pulse of the parameterized pulse duration is put out, the
hysteresis is de-activated
With reaching the comparison condition the hysteresis
gets active
and a pulse of the parameterized duration is put out. As long as the
counter value is within the hysteresis range, no other pulse is put out.
With activating the hysteresis the counting direction is stored in the
module. If the counter value leaves the hysteresis range
contrary to
the stored counting direction, a pulse of the parameterized duration is
put out. Leaving the hysteresis range without direction change, no
pulse is put out.
Effect at pulse at com-
parison value with
pulse duration not zero
VIPA System 300SDeployment I/O periphery
Counter - Additional functions
HB140 | CPU | 314-6CF03 | GB | 16-43 170