Technical Data Management Streaming (TDMS) is a binary file format that allows for high-speed data logging. When you enable TDMS data logging, NI-DAQmx can stream data directly from the device buffer to the hard disk. NI-DAQmx improves performance and reduces the disk footprint by writing raw data to the TDMS file, including the scaling information separately for use when reading back the TDMS file. You can also read data while logging to disk.
For optimal performance, follow these tips:
National Instruments provides a number of mechanisms for reading TDMS files, including software support in LabVIEW, LabWindows/CVI, ANSI C, DIAdem, and Measurement Studio. In addition, National Instruments provides a Microsoft Excel plug in. Refer to ni.com/tdms for additional information. For information about high-speed data streaming, refer to ni.com/streaming.