MonoDAQ-U channels disconnect from math channels after Analyze → Measure transition

  • Software
  • MonoDAQ-U channels disconnect from math channels after Analyze → Measure transition
Chris Wellstood

Posted on 14.04.2026 20:30

I am experiencing a reproducible issue in DewesoftX where hardware channels from a MonoDAQ-U device become disconnected from math channels after switching from Analyze back to Measure mode.

In normal operation, math channels are driven by hardware channels and update correctly. However, after an Analyze → Measure transition, the math channels stop updating entirely, indicating they are no longer receiving data from the hardware channels.


Reproduction Steps

  1. Open a setup with MonoDAQ-U channels feeding math channels
  2. Go to:
  3. Ch. Setup → Measure
  4. → Math channels update correctly
  5. Go to:
  6. Analyze → Measure
  7. → Math channels stop updating
  8. Go to:
  9. Ch. Setup → Measure
  10. → Math channels still not updating
  11. Go to:
  12. Ch. Setup → MonoDAQ-U page → Measure
  13. → Math channels immediately resume updating


This appears to be a device/module reinitialization issue where the hardware channel data stream is not properly reattached to downstream math channels after leaving Analyze mode. Opening the MonoDAQ-U setup page forces the connection to be restored.


System Information

  • DewesoftX version: 2026.1 (RELEASE-260316) 64-bit
  • OS: Windows 11 (Build 26200, 64-bit)
  • Device: MonoDAQ-U



Chris Wellstood

Posted on 06.05.2026 14:25

Just wondering if this was not the correct place to ask this question?

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