From Friday, April 19th (11:00 PM CDT) through Saturday, April 20th (2:00 PM CDT), 2024, ni.com will undergo system upgrades that may result in temporary service interruption.

We appreciate your patience as we improve our online experience.

Multifunction DAQ

cancel
Showing results for 
Search instead for 
Did you mean: 

Issue with reading sample

Hi,

 

I'm using the USB-6001 to gather signal data to the NI MAX and to use the data in a Python script. My issue lies in that when I read the data, it is only limited to 100 samples. Previously when I tested it, there was no limit to how many samples. I've try trying to samples to read and sampling frequency and it's always limited to 100 samples. I've installed NI-DAQmx 19.0 and tried with 14.1, and the code is shown below.

 

import nidaqmx
import matplotlib.pyplot as plt

out = nidaqmx.system.storage.persisted_task.PersistedTask("out")
task = out.load()
data = task.read(10000)
dcOffset = sum(data)/len(data)
peakToPeak = max(data) - min(data)
plt.plot(data)

0 Kudos
Message 1 of 1
(1,692 Views)