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Adding Continuous Acquisition Chart Multiple Samples example in NI-DMM - #2220

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NI-velmurugan wants to merge 6 commits into
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NI-velmurugan:users/velmurugan/add-nidmm-cont-acq-chart-multiple-samples

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@NI-velmurugan

@NI-velmurugan NI-velmurugan commented Oct 12, 2026 •

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  • This contribution adheres to CONTRIBUTING.md.
  • I've updated CHANGELOG.md if applicable.
    - [ ] I've added tests applicable for this pull request

What does this Pull Request accomplish?

This PR adds nidmm_cont_acq_chart_multiple_samples.py, a Python adaptation of the LabVIEW Cont Acq & Chart Multiple Samples.vi

What testing has been done?

  • Manually tested the example using simulated hardware and the real hardware

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codecov-commenter commented Oct 12, 2026 •

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Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 88.12%. Comparing base (cdbd8f2) to head (0226df1).

Additional details and impacted files
@@           Coverage Diff           @@
##           master    #2220   +/-   ##
=======================================
  Coverage   88.11%   88.12%           
=======================================
  Files          88       88           
  Lines       22832    22832           
=======================================
+ Hits        20119    20120    +1     
+ Misses       2713     2712    -1     
Flag Coverage Δ
codegenunittests 84.78% <ø> (ø)
nidcpowersystemtests 94.40% <ø> (+0.04%) ⬆️
nidcpowerunittests 89.53% <ø> (ø)
nidigitalsystemtests 92.04% <ø> (ø)
nidigitalunittests 68.43% <ø> (ø)
nidmmsystemtests 92.33% <ø> (ø)
nifakeunittests 86.08% <ø> (ø)
nifgensystemtests 94.34% <ø> (ø)
nimodinstsystemtests 73.85% <ø> (ø)
nimodinstunittests 94.20% <ø> (ø)
nirfsasystemtests 82.71% <ø> (ø)
nirfsaunittests 63.40% <ø> (ø)
nirfsgsystemtests 81.18% <ø> (ø)
niscopesystemtests 89.99% <ø> (ø)
niscopeunittests 43.20% <ø> (ø)
nisesystemtests 91.50% <ø> (ø)
niswitchsystemtests 81.66% <ø> (ø)
nitclksystemtests 94.87% <ø> (ø)
nitclkunittests 98.26% <ø> (ø)

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@NI-velmurugan

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The plotting approach in this example follows the existing gRPC Device Server example continuous-acquire-graph-multiple-points.py , which displays the continuous data with matplotlib.

@divakar-selvam07

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@jarnoldNI, the PR is ready for your review.

try:
with session.initiate():
# A fetch_count of None runs until the chart window is closed or Ctrl+C is pressed
while plt.fignum_exists(figure.number) and (

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Intentionally skipped the LabVIEW STOP button behavior to keep the example simple.
The loop stops when the chart window is closed or Ctrl+C is pressed.

@NI-velmurugan NI-velmurugan changed the title feat: add nidmm cont acq chart multiple samples example Adding Continuous Acquisition Chart Multiple Samples example in NI-DMM Oct 12, 2026
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4 participants