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6 Digital Input Units
NX-series Digital I/O Unit User’s Manual (W521)
6-
4 Fu
nct
ion
6
6-
4-2 Inpu
t Filter
Operation when the input turns from ON to OFF (OFF filter)
If Input Filter Mode Setting is Enable Only OFF Filter
ON filter is disabled and OFF filter is enabled.
This makes easily to read the pulses that ON time is short.
1
2
3
4
OFF ON OFF OFF
1
2
3
4
OFF OFF OFF OFF
OFF
ON
OFF
ON
Input filter time
Input value is ON
because all inputs
are not OFF during
four times of reading.
Input filter time
Values of input
terminals
Input value
Input value is OFF
because all inputs
are OFF during
four times of reading.
Input filter time
1
2
3
4
ON OFF OFF OFF
OFF
ON
OFF
ON
Input filter time
1
2
3
4
ON
ON OFF OFF
OFF
ON
OFF
ON
OFF OFF
OFF
OFF
When input is ON (ON filter disabled)
If the status of input terminals turns ON,
the input value will turn ON immediately.
When input is OFF (OFF filter enabled)
When input is ON (ON filter disabled)
If the status of input terminals turns ON,
the input value will turn ON immediately.
When input is OFF (OFF filter enabled)
Values of input
terminals
Input value
If the status of input terminals does not
turn ON again during the input filter
time, the input value will turn OFF after
the input filter time has passed.
If the status of input terminals turns ON
again during the input filter time, the
input value stays ON from that time
during the input filter time.
Summary of Contents for NX-IA3117
Page 34: ...Sections in this Manual 32 NX series Digital I O Unit User s Manual W521...
Page 52: ...1 Features and System Configuration 1 18 NX series Digital I O Unit User s Manual W521...
Page 56: ...2 Specifications 2 4 NX series Digital I O Unit User s Manual W521...
Page 152: ...5 I O Refreshing 5 36 NX series Digital I O Unit User s Manual W521...
Page 204: ...8 Digital Mixed I O Units 8 8 NX series Digital I O Unit User s Manual W521...
Page 224: ...9 Troubleshooting 9 20 NX series Digital I O Unit User s Manual W521...
Page 230: ...10 Inspection and Maintenance 10 6 NX series Digital I O Unit User s Manual W521...
Page 337: ...I 1 I NX series Digital I O Unit User s Manual W521 Index...
Page 340: ...I 4 NX series Digital I O Unit User s Manual W521 Index...