Production Test Process using National Instruments LabVIEW™ Sequences and Scripts
Overview
Thanehall enhanced an existing National Instruments™ LabWindows /CVI™ test sequencer by expanding its functionality to meet customer requirements and transitioning it to National Instruments LabVIEW™. The upgraded system offered robust and flexible capabilities for automating and managing production test processes.
Development Highlights
Core Software Functionality
-
The final solution was a core software framework capable of executing scripts from a structured test sequence file.
-
The bespoke script language, designed for text-based test sequences, supported advanced programming constructs including:
-
Variables: For dynamic data management.
-
Control Structures: If, While, and For loops for logical test flows.
-
Mathematical Functions: Enabling complex calculations within test sequences.
-
Device Commands: A comprehensive library of commands tailored for common and specialised test equipment.
-
Cost-Effective Testing
-
The text-based script system eliminated the need for costly software licenses, empowering the customer’s engineers to own, modify, and manage test sequences independently.
Test Reporting and Accessibility
-
All test results were securely stored in the cloud, ensuring accessibility and scalability.
-
The system provided flexible reporting options, including the ability to generate detailed reports in Excel and other widely-used formats, enabling easy analysis and sharing.
Customer Benefits
-
Enhanced Functionality: The transition to LabVIEW™ brought improved performance and greater flexibility in test process management.
-
Empowered Engineering Teams: By using a text-based scripting approach, the customer’s engineers could efficiently create and manage their own test sequences without additional software costs.
-
Streamlined Reporting: Cloud-based report storage and versatile output formats simplified data management and collaboration.
Conclusion
This project demonstrated Thanehall’s expertise in leveraging National Instruments™ tools to deliver a customised, cost-effective, and scalable production test solution. The system’s advanced scripting capabilities and seamless integration with diverse test equipment ensured high adaptability to customer requirements while reducing operational costs.