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Live HDF5 by UPVI, LLC - Toolkit for LabVIEW Download

Provides a full-featured interface between LabVIEW and the HDF5 scientific data format

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ReleasedMay 19, 2016
Publisher UPVI, LLC
LicenseLive HDF5 License
LabVIEW VersionLabVIEW>=11.0
Operating System Windows NT=6.2,Windows NT=6.1,Windows NT=6.0
Project links Homepage  


The Live HDF5 toolkit provides a full-featured interface between LabVIEW and the HDF5 file format. The HDF5 format (hierarchical data format) is a versatile and widely-used format for storing scientific data. It is a self-describing file format that can store arbitrarily complex datatypes in "datasets" arranged in a folder-like hierarchy within the file. Named attributes may also be attached to the datasets or the folders. HDF5 is accessible to such programs as Matlab, IDL, Mathematica, IGOR Pro, C/C++, Fortran, Java, Perl, Python, and is widely used by national laboratories, research centers, and universities. For full details on the HDF5 format and its functions, please visit the HDF5 website at

Live HDF5 makes it easy for LabVIEW programmers to use the HDF5 library. It follows the standard paradigm of "open, read/write, close." Open a file, write a dataset and/or read a dataset, close the file. When a write command is wired, it will analyze the LabVIEW datatype connected and create a corresponding HDF5 datatype in which to store the wired data. During read, the data may be read back into the same datatype or into a LabVIEW variant. With care and a deep understanding of LabVIEW memory, the data may also be read into a different, compatible datatype.

The toolkit provides both high-level read and write functions which handle the low-level HDF5 details. It also provides utility functions to make interaction with HDF5 files easier for LabVIEW users, e.g. a VI to populate a LabVIEW Tree control with the folder structure of an HDF5 file. Finally, the library provides low-level interfaces to most of the other HDF5 functions for power-users with particular needs.

Release Notes (May 19, 2016)

== Version (2015-04-19) ==

Bugfix release

- Fixed improper link to sub node in LVH5 Write Attribute and LVH5 Read Attribute
- Updated dynamic icons for the same VIs
- Fixed crash that occurred when attempting to write empty arrays to datasets or attributes

Please see CHANGELOG.txt for a complete changelog, and README.txt for known issues and other information.


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