Integrating DAQ, IMAQ, and Motion Joe Hays Applications Engineer Thu 11:30a, 2:00p and 4:45p Red River (4B) Joe Hays Applications Engineer Thu 11:30a, 2:00p and 4:45p Red River (4B)

Integrating DAQ, IMAQ, and Motion  Project overview – circuit test system (CTS)  Tools that simplify the integration task  Balance between system monitoring and functional circuit testing  Coordination of image acquisition  Portable configuration information  Project overview – circuit test system (CTS)  Tools that simplify the integration task  Balance between system monitoring and functional circuit testing  Coordination of image acquisition  Portable configuration information

CTS  Objective – circuit manufacturing verification through automated testing  Integration of data acquisition (DAQ), signal conditioning (SCXI), image acquisition (IMAQ), and motion control  Objective – circuit manufacturing verification through automated testing  Integration of data acquisition (DAQ), signal conditioning (SCXI), image acquisition (IMAQ), and motion control

CTS Camera Motor UUT PC Based Acquisitions System Vital Signs

Follow Good Software Development Practices  Top-down verses bottom-up  Define tasks for modularity  Determine the main data flow of the application Critical paths and priorities  Determine dependencies between modules  Standardized junctions for inter-module communication  Remember to design with the future in mind!  Top-down verses bottom-up  Define tasks for modularity  Determine the main data flow of the application Critical paths and priorities  Determine dependencies between modules  Standardized junctions for inter-module communication  Remember to design with the future in mind!

Integration Tools  Multithreading  Code synchronization Semaphores Notifiers Rendezvous Queues Occurences  VI Server  Configuration File VIs  Multithreading  Code synchronization Semaphores Notifiers Rendezvous Queues Occurences  VI Server  Configuration File VIs

Integration Tools (cont.)

Integration Tools (cont.)

Integration Tools (cont.)

Integration Tools (cont.)

System Monitoring and Circuit Testing  Problem – resource conflict between the system monitoring and circuit testing operations  Options More hardware State machine Parallel loop with Semaphore VI Server with Semaphore  Problem – resource conflict between the system monitoring and circuit testing operations  Options More hardware State machine Parallel loop with Semaphore VI Server with Semaphore

VI Server with Semaphores

Coordinated Image Acquisition  Problem – continuous image acquisition without significant delays  Options State machine Parallel loop VI Server  Problem – continuous image acquisition without significant delays  Options State machine Parallel loop VI Server

VI Server

Portable Configuration Information  Problem – system-independent configuration information  Options Hard code information Configuration dialog Configuration files  Problem – system-independent configuration information  Options Hard code information Configuration dialog Configuration files

Configuration Files Example.cfg File Reading the.cfg File

Configuration Files (cont.) Using the.cfg Data

Closing  National Instruments simplifies the integration of measurement and automation systems by providing Superior application development environments Comprehensive driver APIs Advanced hardware solutions  National Instruments simplifies the integration of measurement and automation systems by providing Superior application development environments Comprehensive driver APIs Advanced hardware solutions