Module simplifies communication to realtime targets with increased determinism

18 April 2007 Computer/Embedded Technology Residential Estate (Industry)

National Instruments has released the NI LabWindows/CVI 8.1 Real-Time Module, an extension to the ANSI C development environment that makes it easy for engineers to create and deploy reliable and deterministic applications to dedicated realtime hardware such as PXI and desktop PCs. LabWindows/CVI Real-Time takes advantage of network variables to simplify the process of transferring data between realtime and Windows applications.

The software also introduces a new high-resolution timing engine for achieving more precise timing and determinism.

"The LabWindows/CVI 8.1 Real-Time Module gives engineers the technology to quickly and seamlessly communicate with distributed realtime and Windows applications, decreasing the amount of code a developer must rewrite to run pre-existing applications in a realtime environment," said John Pasquarette, director of software marketing at National Instruments. "It also delivers tight integration with the LabWindows/CVI development environment and NI hardware, providing engineers with a single toolchain for creating realtime server applications and Windows client applications."

The network variable technology, introduced in LabWindows/CVI 8.1, gives engineers a simplified interface for communicating with applications written in LabWindows/CVI, LabVIEW, Microsoft Visual Basic .NET and C#. Using network variables and the LabWindows/CVI Real-Time Module, NI says that engineers now can publish and share live measurement data between test systems located on the factory floor and remote supervisory machines without the complexity of low-level TCP programming. They can also use the network variable to communicate between LabWindows/CVI Real-Time and NI LabVIEW Real-Time targets.

A new high-resolution timing engine helps engineers perform the accurate timing required for event response applications. With this, says National Instruments, they now can achieve submillisecond loop rates with microsecond software jitter using PXI hardware, which is ideal for applications that require precise timing and determinism such as motion control and event response.

LabWindows/CVI Real-Time also takes advantage of the Technical Data Management (TDM) Streaming library. This library streams realtime test and measurement data to disk quickly without affecting the determinism of time-critical applications.

For more information contact National Instruments SA, 0800 203 199.

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