MG 40 Series - Averaging Input

3740DCT EM-9538-B Rev.5
MG CO., LTD. www.mgco.jp
5-2-55 Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN
6. AVERAGING INPUT
Moving average processing of measured values is congurable. The number of samples in processing the moving average
can be selected in the following table. This operation averages sampled values, and then, averages with a new sample
added and the oldest one omitted. Such operation is repeated as shown in the following gure. For instance, when ‘A 4’ is
selected, the moving average processing with 4 samples (400 millisecond intervals) is repeated. Moving average is used
to remove periodic varied noise superimposed on the input signal and suppress the display ickering.
■ NUMBER OF SAMPLES
DISPLAY FUNCTION DEFAULT VALUE
No moving averaging
Moving average with 2 samples (200 millisecond intervals)
Moving average with 4 samples (400 millisecond intervals)
Moving average with 8 samples (800 millisecond intervals)
Moving average with 16 samples (1600 millisecond intervals)
■ EXAMPLE OF MOVING AVERAGE WITH 4 SAMPLES
(1) The moving average operation starts immediately after the power is on or the moving average is set. Until the sampling
No. reaches the set value, all samples are averaged every 100 milliseconds.
(2) After the sampling No. reaches the set value, a new sample is added to be averaged with the oldest one omitted. Such
operation is repeated.
Measured value
Sampling
Moving averaging
Average
100 milliseconds
Display value
100 milliseconds
Refreshing measured
and average values
(1)
(2)
H