Jan 9, 2026 · This error can occur if two tasks sharing an acquisition loop have different sample rates. The reason that this error presents itself is that the DAQmx read is a blocking call. Feb 19, 2021 · Status Code: -200279 Here it seems to me that the stream is constantly storing data to the memory which leads to an overflow (Error -200279: Unable to Keep Up with Acquisition in . Jan 10, 2024 · However, when I tried to run it on a third computer, it crashed and gave the same error. I can't figure out what the cause of this is, just that it may be PC related.
Oct 24, 2024 · To avoid an overwrite error, you need to increase the buffer size, read faster, or write slower. In LabVIEW, you may also consider implementing a Producer/Consumer Design Pattern . Mar 21, 2019 · to solve that Error -200279: DON'T use an additional wait time in your loop when you have set the DAQmx task to a fixed samplerate! Other things: - get rid of all those ExpressVIs . Aug 4, 2023 · Error -200279 as below occurred after doing continuous acquisition for a certain amount of time. Increasing the buffer only prolong the time before the error happened, and did not solve the error.
Dec 10, 2025 · What are overwrite and overflow errors, and how can I avoid them in NI-DAQmx? A commonly seen overwrite error is Error -200279: The application is not able to keep up with the . Oct 4, 2023 · The errors (-50352 and -200279) are associated with the NI-DAQmx AI (Signals2) module, which receives signals from the NI cDAQ-9185. Please verify the Ethernet connection, i.e. cable, . Jan 13, 2022 · The normal meaning of the -200279 error is that the device and driver are pushing data into the task buffer faster than your app is pulling it out. When it's just about to write over top of old .
Jan 23, 2008 · Error #200279 usually occurs when you are sampling and not reading values out of the buffer quickly enough. Try and follow the 10% rule for Continous Acquisition with DAQmx.
- This error can occur if two tasks sharing an acquisition loop have different sample rates.
- However, when I tried to run it on a third computer, it crashed and gave the same error.
- To avoid an overwrite error, you need to increase the buffer size, read faster, or write slower.
Error -200279 when Running Data Acquisition with Python and NI. This indicates that "Error in pgenlibr::NewPvar" should be tracked with broader context and ongoing updates.
Error -200279 as below occurred after doing continuous acquisition for a certain amount of time. For readers, this helps frame potential impact and what to watch next.
FAQ
What happened with Error in pgenlibr::NewPvar?
Understanding and Avoiding NI-DAQmx Overwrite and Overflow Errors.
Why is Error in pgenlibr::NewPvar important right now?
What are overwrite and overflow errors, and how can I avoid them in NI-DAQmx?
What should readers monitor next?
The errors (-50352 and -200279) are associated with the NI-DAQmx AI (Signals2) module, which receives signals from the NI cDAQ-9185.
Sources
- https://knowledge.ni.com/KnowledgeArticleDetails?id=kA00Z0000019KTeSAM
- https://stackoverflow.com/questions/66277281/delayed-or-overflowed-data-acquisition-with-python-and-nidaqmx
- https://www.reddit.com/r/LabVIEW/comments/192utxv/labview_error_200279/
- https://haliatech.com/understanding-and-avoiding-ni-daqmx-overwrite-and-overflow-errors/
