Functions Of E3Nw-Ect; Input Filter - Omron E3NX-FA Operation Manual

7-2

Functions of E3NW-ECT

Digital I/O Slave Units have the following convenient functions, in addition to the I/O signal processing.
7-2-1

Input Filter

Overview of functions
 Purpose
This function prevents data changes and unstable data, which may be caused by fluctuation of input
data and unstable contact state due to chattering and noise. This function is available in Free Run
Mode.
 Details of functions
This function reads inputs (ON/OFF) within a certain set time and turn ON the inputs if they are all
same (all ON or all OFF)
Note that this function works for all inputs of Slave Units and Expansion Units at the same time.
When the input shifts from OFF to ON (or ON to OFF), it is read 4 times from that point at an interval
of 1/4 of the set time. When all read results are ON (or OFF), the input is turned ON (or OFF).
1 2
ON
OFF
ON OFF OFF
Data set to be input
ON
OFF
Setting method
The input filter is set through SDO communications.
The applicable index is 3002 hex.
Refer to the applicable index (Input Filter in Free-Run Mode) in "A-1 Object Dictionary" on page A-2 for
the set values.
E3NW-ECT EtherCAT Digital Sensor Communication Unit Operation Manual (E429)
,
and turn them OFF if not.
3 4
ON
Input data is OFF because all data
is not ON during 4 readings.
1 2 3 4
ON
OFF
ON ON ON ON
Input data is ON because all data
is ON during 4 readings.
Data set to be input
ON
OFF
ON delay time
7 Function Specifications
7
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