Real time test software

National Instruments has released NI VeriStand 2011, the latest version of its configuration based software environment for creating real time testing and simulation applications including hardware in the loop (HIL) simulators and test cells.

The open software interface is designed to help engineers achieve more system flexibility while decreasing test development time. The new version includes a real time stimulus profile tool that NI claims expands deterministic test execution with looping and branching structures, composable arithmetic functions, multitasking and more. NI VeriStand 2011 can be combined with INERTIA, an add on from Wineman Technology, which adds a suite of tools to NI VeriStand for optimised closed loop control of dynamometer and servo hydraulic based test cells. The new stimulus profile tool in NI VeriStand 2011 is designed to increase test development efficiency and system capabilities by making it possible for engineers to create and reuse sophisticated test profiles. The tool includes a library of structures and operators that are said to 'significantly' decrease test development time and increase test coverage. It is also enhanced with templates for common test routines such as multitasking and data logging and includes other features specifically designed to broaden test coverage and simplify code reuse in even the most demanding real time testing applications. The Wineman INERTIA add on for NI VeriStand 2011 extends the software's functionality for dynamometer and servo hydraulic based test cell applications. When combined with NI VeriStand 2011, INERTIA gives engineers advanced closed loop control with bumpless mode switching, dither and other features that are useful for implementing real time control and test applications. The add on also includes tools for tuning and monitoring control loops and accounting for mechanical life cycle degradation through amplitude control. Additionally, INERTIA builds on the new stimulus profile editor in NI VeriStand to provide an application specific test editor for more efficient authoring of deterministic stimulus profiles that interface with multiple actuator control loops.