Omron SmartSlice GRT1-OD4G-1 Operation Manual page 70

Functions of Digital I/O Units
OFF Response Time
50
The input filter can also be used to perform an ON delay operation (a delay for
the ON response time is created when the input filter is enabled).
1 2 3 4
ON
OFF
ON OFF OFF ON
Not all values are
ON during the four
samples, so the
input is regarded as
being OFF.
Input data
ON
OFF
When input data changes to OFF, the input data is read five times for the
period of the set interval (1/5 of the OFF response time). If all values are OFF,
the input is turned OFF. The OFF timing is delayed according to the length of
the OFF response time.
The input filter can also be used for ON/OFF delay operations.
To use a pulse shorter than the communications cycle time, set the OFF
response time to a value longer than the communications cycle time. (If the
input pulse is short, the input may remain ON.)
1 2 5
3 4
ON
OFF
OFF ON OFF OFF ON
Input data
ON
OFF
1 2 3
ON
OFF
ON
ON ON
Input data
ON
OFF
ON delay time
(= input filter time)
1
ON
OFF
Not all values are
OFF
OFF during the five
samples, so the input
is regarded as being
ON.
Input data
ON
OFF
Section 4-4
4
All values are ON
ON
during the four
samples, so the
input is regarded
as being ON.
2
3 4 5
OFF OFF OFF OFF All values are OFF
for all five samples,
so the input is
regarded as being
OFF.
ON delay time
(= input filter time)