Omron Sysmac NX-series, User Manual

Page: 163 / 306

Setting name
Setting descrip-
tion
De-
fault
value
Setting
range
Unit
Update
timing
Remarks
Ch1 Digital Low-
pass Filter Cutoff
Frequency Set the digital low-
pass filter cutoff
frequency. 0 0 to
9900
*1
× 10
Hz Immedi-
ately Set this parameter to 0
to disable the digital
low-pass filter.
Ch2 Digital Low-
pass Filter Cutoff
Frequency
Ch3 Digital Low-
pass Filter Cutoff
Frequency
Ch4 Digital Low-
pass Filter Cutoff
Frequency
*1. The cutoff frequency must be set based on the Digital Filter Processing Period settings. Refer to Restric-
tions for Cutoff Frequency Setting on page 8 - 21 for the setting restrictions.

Restrictions for Cutoff Frequency Setting
Set the cutoff frequency in the following range:
0 < Set value of cutoff frequency ≤ (((1 ÷ Digital Filter Processing Period [µs]) × 1,000,000) ×
0.495) ÷ 10 Hz
If the value exceeds the upper limit, it is set to the upper limit.
For example, when the Digital Filter Processing Period is set to 6.25 µs, the cutoff frequency must
be set in the following range:
0 < Set value of cutoff frequency ≤ (((1 ÷ 6.25 µs) × 1,000,000) × 0.495) ÷ 10 Hz = 7,920

Precautions When You Change Set Values
If you use the actual system to adjust the values of settings that are designed to be updated imme-
diately after a change, change the values of only those settings and transfer them to the Unit. Note
that you need to restart the Unit if you change and transfer the values of settings that are designed
to be updated only after a restart.

Digital Low-pass Filter Enable/Disable Setting
The digital low-pass filter is disabled by default.
Set the cutoff frequency in the Unit operation settings to a value other than
0 to enable the digital
low-pass filter.
Set the cutoff frequency in the Unit operation settings to
0 to disable the digital low-pass filter.
You can enable/disable the digital low-pass filter with the relevant bit in the Ch
£
Operation Com-
mand of I/O data.
8 Functions
8 - 21
NX-series Analog I/O Units User’s Manual for High-speed Analog Input Units (W592)
8-5 Digital Filtering
8
8-5-2
Details on the Function