Omron SYSMAC NX series Startup Guide

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4. Appendices
4.1. Features for Stable Measurement
The following features are available for the Load Cell Input Unit to perform stable measurement.
Make use of them as needed.
● Digital filtering
The digital filtering suppresses the fluctuation of measurement values due to the effect of
electrical noise and mechanical noise, enabling stable measurement. The digital filtering can
be used in any combination with the following three filters:
・Digital low-path filter
・Moving average filter 1
・Moving average filter 2
Refer to 8-2 Digital Filtering described in the NX-series Load Cell Input Unit User’s Manual
(Cat. No. W565) for details on the digital filtering feature.
● Data tracing
The data tracing feature is available to sample and record the measurement values before
and after digital filtering processing.
Referring to the recorded results makes it easy to identify the noise frequency band and
check the effect of noise removal, allowing optimal digital filter design.
Refer to 8-12 Data Tracing and A-2 Digital Filter Design That Utilizes Data Tracing described
in the NX-series Load Cell Input Unit User’s Manual (Cat. No. W565) for details on the data
tracing feature.
4.2. Data Backup When Replacing the Load Cell Input Unit
The data below of the Load Cell Input Unit is stored in the Communications Coupler Unit.
Therefore, resetting is not required upon replacement of the Load Cell Input Unit if you will not
change the settings after the replacement of the Unit.
・I/O allocation settings
・Unit operation settings
The basic parameters to set for equivalent input calibration are included in the Unit operation
settings. Therefore, recalibration is not required after replacement of the Unit if you have been
used it with equivalent input calibration.
If you have been used the Unit with actual load calibration, zero calibration and span calibration
are required after replacement of the Unit. Note that the setting for Ch1 Standard Weight is
included in the Unit operation settings, so Ch1 Standard Weight does not need to be set again if
you will not change the weight used for span calibration.
4.3. Weighing Control Library of Sysmac Library
For the configuration of other weight measurement systems using the Load Cell Input Unit, for
example, a quantitative discharging control system, Weighing Control Library of Sysmac
Library
*1
, which is designed for the Load Cell Input Unit, is available for creating a user program.
Refer to the NJ/NX-series Sysmac Library User’s Manual for Weighing Control Library (Cat. No.
W569) for details on Weighing Control Library of Sysmac Library.

Omron SYSMAC NX series Specifications

General

Brand	Omron
Model	SYSMAC NX series
Category	Controller
Language	English