Digital Input Filter; Overview Of Function; Details On Function - Omron NXR Series User Manual

9 Functions
9-6

Digital Input Filter

This section describes the digital input filter.
9-6-1

Overview of Function

A function that removes the chattering and noise of the input signal when the port is set to SIO (DI)
Mode.
When the input data changes without stabilization of the state of the contact point due to chattering
and noise, this function prevents changes in data and stabilizes it.
This function uses the Port
9-6-2

Details on Function

This function reads the inputs four times at a 1/4 interval of the input filter time that is set in Input Filter
Value Setting. When all inputs are ON or OFF, the input values turn ON or OFF.
Values of input
terminals
Input value
Note that when you use this function, the timing for which the input value actually turns ON or turns
OFF is delayed from the initial input to the input terminals until ON delay time or OFF delay time in the
following table.
ON delay time
OFF delay time
Set the values for pin 4 and pin 2 independently.
Settings
Use the Sysmac Studio or SDO communications to configure the following settings.
9-12
£ Pin4 Input Filter Value Setting and Port £ Pin2 Input Filter Value Setting.
Input filter time
1 2 3
ON
OFF
ON OFF OFF ON
Input value is OFF because
all inputs are not ON during
four times of reading.
ON
OFF
Delay time
Input filter time
4 1
ON ON ON ON
Input value is ON because
all inputs are ON during
four times of reading.
Description
ON response time + input filter time
OFF response time + input filter time
NXR-series IO-Link Master Unit for EtherCAT User's Manual (W640)
2 3 4