Integrating Data Acquisition and Instrument Control with Your Scilab Scripts

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Edith Harper
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1 Integrating Data Acquisition and Instrument Control with Your Scilab Scripts Darcy Dement Marketing Director National Instruments France

2 Who We Are 800 Leaders in Computer-based Measurement and Automation Long-term track record of growth and profitability NI HQ 500 $677M revenue in 2009 More than 5,100 employees; operations in 40+ countries Fortune s 100 Best Companies to Work For 11 consecutive years 16% invested in R&D

3 What We Do Low-Cost Modular Hardware for Measurement and Control Productive Software Development Tools Highly Integrated Systems Platforms Used By Engineers and Scientists for Test, Design, and Control 3

4 The Numerical Mathematics Consortium 4

5 Discussion Topics: Connecting Math with the Physical World Need for adding interactivity & instrumentation A software option for interfacing with the physical world: NI LabVIEW Using Scilab with LabVIEW Use cases Demo Technical information 5

6 Textual Math Strengths Scripted math Sequential order of execution Vector and matrix operations Algorithm design for signal processing Familiarity User network and community 6

7 Need for Instrumentation & Interactivity Acquire real-world data with hardware Generate real stimuli Control any of 1000 s of instruments with available drivers Perform frequency analysis, probability, statistics, math, curve fitting, interpolation, digital signal processing, etc. Create custom algorithms Visualize data with professional user interfaces Generate reports Publish and control applications on the web Connect to databases Efficiently store data in multiple file formats 7

Need for Instrumentation & Interactivity Acquire real-world data with hardware Generate real stimuli Control any of 1000 s of instruments with available drivers Perform frequency analysis,

8 Need for Instrumentation & Interactivity Acquire real-world data with hardware Generate real stimuli Control any of 1000 s of instruments with available drivers Perform frequency analysis, probability, statistics, math, curve fitting, interpolation, digital signal processing, etc. Create custom algorithms Visualize data with professional user interfaces Generate reports Publish and control applications on the web Connect to databases Efficiently store data in multiple file formats 8

9 Complementing Your Scripts with Instrumentation and Presentation Mathematical Simulation Measurement and Presentation 9

10 Complementing Your Scripts with Instrumentation and Presentation Mathematical Simulation Measurement and Presentation 10

Automated test & measurement Graphical system design Easily implement and deploy custom GUIs by applying an

11 What is LabVIEW? Compiled Graphical Development Environment for Engineering & Science Implement and deploy custom applications Automated test & measurement Graphical system design Easily implement and deploy custom GUIs by applying an open, hybrid (graphical + textual) programming approach Acquire / generate signals, instrumentation Apply analysis and signal processing Present results in an interactive graphical format locally or online 11

12 Integrate LabVIEW with Scilab Scripts to Add Interactivity to Simulations 12

13 Integrate LabVIEW with Scilab Scripts to Add Interactive Visualization to Simulations 13

14 LabVIEW-Scilab Script Integration Simplifies Acquisition and Analysis of Live Signals 14

15 ni.com/idnet: Your Source for Instrument Drivers with LabVIEW Drivers for instruments from over 275 vendors 15

16 Multiple NI Data Acquisition Options, Same Software Ethernet Wi-Fi PXI USB PCI PXI Express PCI Express 16

17 DEMO Instrument Your Algorithms 17

18 How it Works: Using Scilab Scripts within LabVIEW 1. Install Scilab or later, LabVIEW 8.0 or later, and the freely downloadable gateway 2. Open LabVIEW, create a new LabVIEW VI, and insert a Scilab script node on the VI block diagram 3. Enter your Scilab script in the Scilab script node 4. Right-click the Scilab script node border, select Add Input or Add Output, and enter input / output variable names 5. Connect LabVIEW wires to the new inputs and outputs When you run your application, LabVIEW invokes the Scilab engine to execute your script 19

19 Downloading the Free Scilab-LabVIEW Gateway scilab.org ni.com/info and enter: infoscilab 20

20 Conclusion & Call-to-Action LabVIEW adds instrumentation and interactivity to bring life to your mathematical simulations Let us know about your applications for the Scilab / LabVIEW link (forums.ni.com, or Try LabVIEW free for 30 days download at ni.com/labview darcy.dement@ni.com 21

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LabWindows /CVI Using the Latest ANSI C Tools for High-Performance Automated Test Agenda Introduction to LabWindows/CVI and modular instruments Developing modular instrument applications Hybrid systems