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Timing Considerations with Standalone NI CompactDAQ Systems

    Last Modified: April 18, 2018

    While Standalone NI CompactDAQ systems, such as the NI cDAQ-9132, 9133, 9134, 9135, 9136, 9137, 9138 and 9139, can be programmed with and run the LabVIEW Real-Time Module, the hardware and software architecture is optimized for data logging applications rather than for real-time control applications. This means that Standalone NI CompactDAQ systems are ideal for streaming many channels to or from disk for extended periods of time, but should not be used for applications that require hard determinism. The Standalone NI CompactDAQ hardware and software architectures are not designed for deterministic operation.

    • Standalone NI CompactDAQ systems do not support hardware-timed single-point sample mode or hardware-timed non-buffered sample mode.
    • Standalone NI CompactDAQ systems do not support DAQ events as timing sources for time loops.

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