FILTER HISTORY OF waveform CHART

[h.sepah]

Hi. i use waveform chart to display of variable but in ploted curve there are some over shoot  and undr shoot i want filter these over shoot and under shoot. how can i do this?

[GerdW]

Hi h.,

use a filter before plotting the measurement data… (Did you try a Median filter?)

Where does that noise come from? Would it be easier ("make more sense") to eliminate that noise even before your DAQ device measures it?

[h.sepah]

i collected  these data from a load cell amplifier by modbuse rtu. i used Butterworth Filter and out put signal is filtered properly.

[GerdW]

Hi h.,

are you sure your Modbus communication works correctly when you get such "noisy" (erranous) data?

Most often it helps to prevent errors upstream instead of filtering bad data downstream the dataflow…