Scilab LabVIEW Gateway

..

1

Introduction SCILAB with LabVIEW GATEWAY

SCILAB MATLAB SCILAB (freeware) MATLAB SCILAB

LabVIEW Laboratory Virtual Instrument Engineering Workbench GUI (Graphic User Interface) code G (Graphical Language) C, BASIC FORTRAN Port Card

SCILAB LabVIEW

LabVIEW 8.6 SCILAB 4.1.2 ScriptScilab.dll National Instruments INRIA Scilab - LabVIEW Gateway 1.1 (Open source) http://www.scilab.org/products/other/labview_gateway

..

2

Introduction BASIC LabVIEW

LabVIEW Virtual Instrument (VI)

Virtual Instrument (VI) 3

1. Front Panel 2. Block Diagram 3. Icon Connector 3

3 1. Front Panel (

user interface) , , Front Panel GUI VI Front Panel 1.1

1.1 Front Panel LabVIEW

..

3

(Front Panel) LabVIEW 2 (Controls) (Indicator) 2

1.1 Controls (Input) Controls , , , Digital Controls (source) Controls 1.2

1.2 Control LabVIEW

1.2 Indicators , , Indicators output Indicators Indicators Indicators 1.3

1.3 Indicators LabVIEW

2. Block Diagram Source Code LabVIEW

G Block Diagram Executable Program LabVIEW

..

4

Block Diagram Block (wire) Block block Block Diagram 1.4

1.4 Block Diagram LabVIEW

Block Diagram

(Data Flow) 4 2.1 Terminal Control Indicator Front Panel Window Block Diagram Terminal Terminal Terminal Terminal Controls Terminal Terminal Indicator 1.6 2.2 Node / RUN VI Node 1.6

2.3 Functions sine, cos, tan, log Functions Palette Block Diagram Functions Palette 1.5 1.6

..

5

1.5 Functions Palette Block Diagram

2.4 Wires - terminal node Block Diagram wires terminal node terminal Data Flow Programming 1.1 1.1 Wires

Type Scalars 1-D Array 2-D Array Color Boolean

..

6

1.6 Terminal, Node, Function wire Block Diagram

3. Icon Connector Subroutine icon

block diagram Connector LabVIEW Subroutine subVI G VI VI VI subVI module

Icon 1.7 () Connector Terminal 1.7 ()

1.7 Icon Connector LabVIEW

Icon Connector

Wires

Terminal Output

Terminal Input

Block Diagram 3 Node

Functions

..

7

LabVIEW 1.2 LabVIEW 1.2 LabVIEW

LabVIEW VI Program

Function function sin, log

SubVI Subroutine

Front Panel user interface

Block Diagram Program code

..

8

CHAPTER 1 SCILAB with LabVIEW Gateway

SCILAB LabVIEW

ScriptScilab.dll National Instruments INRIA Scilab - LabVIEW Gateway 1.1 (Open source) http://www.scilab.org/products/other/labview_gateway :

Windows 2000/XP/Vista Scilab 4.1.1 release or higher LabVIEW 8.0 or 8.2.x

Scilab - LabVIEW Gateway 1. Scilab - LabVIEW Gateway 1.1 Scilab 4.1.1 LabVIEW 8.0 8.2.x (UNZIP) 1.8

1.8 Scilab - LabVIEW Gateway 1.1

Scilab 4.1.1 LabVIEW 8.6

..

9

2. Folder LabVIEW \examples\Scilab\Scilab 3D Graph.vi \examples\Scilab\Scilab Data Acquisition (lowlevel).vi \examples\Scilab\Scilab Data Acquisition.vi \examples\Scilab\Scilab Fourier Series.vi \examples\Scilab\Scilab Life.vi \examples\Scilab\Scilab Script Node Examples.aliases \examples\Scilab\Scilab Script Node Examples.lvproj \examples\Scilab\Scilab SignalGen-Analysis.vi \menus\Categories\Mathematics\_scriptsAndFormulas\MoreScriptNodes\scilab.mnu \resource\script\ScriptScilab.dll \vi.lib\Scilab\ScilabScript.vi \Scilab - LabVIEW readme.pdf

Examples LabVIEW 8.x

3. Scilab Script 3.1 Scilab - LabVIEW Gateway 1.1

Scilab Scripts LabVIEW 8.6 Functions 1.2

1.2 LabVIEW

..

10

3.2 Getting Started 1.3 Blank VI www.ni.com

1.3 Getting Started

3.3 Scilab Script Block Diagram Functions LabVIEW Mathematics >> Scripts & Formulas >> MoreScriptNodes >> Scilab >> Scilab Script (Icon) 1.4

1.4 Function Scilab

..

11

Scilab Script Scilab Scilab Scilab Error

Scilab Script (Icon) 1 cursor

(hand) Block Diagram 1 1.5

1.5 Scilab script

Scilab Script Scilab (algorithm) Add Input Add Out Scilab Script 1.6

1.6

..

12

CHAPTER 2 Examples of applications

3 1. Log 2 2. 2

2.1 (sinusoid waveform) 2.2 (sinc function)

2.3 (sinc function) 2.4 2 (sinc function)

3. 3 3.1 z = | 0.5*cos(2x) * cos(2y) |

3.2 (torus) 3.3 3 (sinc function)

..

13

1. Log 2 Log2 Scilab

( "" ) x b n x = bn

Log2(128) = 7 2 x 2 x 2 x 2 x 2 x 2 x 2 = 128

1.1 Front Panel 2 Modern Numeric Numeric Control 1 Modern Numeric Numeric Indicator 2.1

2.1 Controls Front Panel

1.2 Block Diagram Scilab script code Scilab

1.3 Add Input x Add Output z ( Add

Output CHAPTER 1) Log 0 Log 2.2 Code Input 0 Function Case Structure

z = log2(x)

1 2

logb(x) = n

..

14

Programming Structures Case Structure 2.3 Function Case Structure Programming Comparison Not Equal? 2.4

2.2 Error Function Scilab Script

2.3 Function Case Structure

2.4 Function Case Structure

1.4 code (True) Function Scilab script

2.5 (False) Code 2.6 Wires Node 2.6 2.7

..

15

2.5 Function Case Structure (True)

2.6 Function Case Structure (False)

1.4 Log 2 Run Continuously

2.7

2.7 Log 2 Scilab script

..

16

2.1 1 (sinusoid waveform)

2.1.1 Front Panel 2 Modern Graph XY Graph 2.8

2.8 Control XY Graph

2.1.2 Block Diagram Scilab script code Scilab

2.1.3 Add Output t y ( Add Output

CHAPTER 1) Function Bundle Programming Cluster, Class, & Variant Bundle 2.9 Wires Node 2.10

2.9 Bundle

-->t = 0:0.01:2; -->f = 1; -->y = sin(2*%pi*f*t);

y = sin(2ft)

..

17

2.10 Scilab script XY Graph

2.1.4 2 Run Continuously 2.11

2.11

..

18

2.2 2 (sinc function)

2.2.1 Front Panel

2 Modern Graph XY Graph 2.8 ( 1) 2.2.2 Block Diagram Scilab script code

Scilab


CHAPTER 1) Function Bundle Programming Cluster, Class, & Variant Bundle 2.9 ( 1) Wires Node 2.12


2.2.4 2 Run Continuously 2.13

x = -15:0.1:15; x = x + (x==0)*%eps; y = sin(x)./x;

y = sin(x) / x

..

19

2.13

..

20

2.3 3 (sinc function)

y y ( y 0.95) 2.3.1 Front Panel


Scilab




2.3.4 2 Run Continuously () 2.15

x = [-15:0.01:15]; y = sin(x); y = y.*(abs(y)

..

21

2.15 ()

..

22

2.4 4 2 (sinc function)

y y (y 0.95 y 0.95) 2.4.1 Front Panel


Scilab




2.4.4 2 Run Continuously

() 2.17

x = [-15:0.01:15]; y = sin(x); y = y.*(y=0.95);

y = sin(x) / x

..

23

2.17 ( 2)

..

24

3.1 1 z = | 0.5*cos(2x) * cos(2y) |

3.1.1 Front Panel

3 Classic Classic Graph ActiveX 3D Surface 2.18

2.18 Control ActiveX 3D Surface


3.1.3 Add Output x , y z z

Array 2 z Choose Data Type 2-D Array of Complex 2.19

2.19 2-D Array of Complex

z = | 0.5*cos(2x) * cos(2y) |

x = linspace(0, 1, 21); y = linspace(0, 1, 21); z = abs(0.5*cos(2*%pi*x)'*cos(2*%pi*y));

..

25

3.1.4 Wires Node 2.20

2.20 Scilab script 3D Surface

3.1.5 3 Control 3D Surface

CWGraph3D Properties... 2.21 Plots Style Color map style Color Spectrum 2.22

2.21

2.22 ()

1

2

3

..

26

3.1.6 3 Run Continuously z = | 0.5*cos(2x) * cos(2y) | 2.23

2.23 z = | 0.5*cos(2x) * cos(2y) |

..

27

3.2 2 (torus)

3.2.1 Front Panel

3 Classic Classic Graph ActiveX 3D Parametric Graph 2.24

2.24 Control ActiveX 3D Parametric Graph


3.2.3 Add Output x , y z Array 2 z Choose Data Type 2-D Array of Complex 2.19 ( 1)

phi = linspace(0, 2*%pi, 21); theta = linspace(0, 2*%pi, 21); a = 1.4; c = 0.5; [PHI, THETA] = ndgrid(phi, theta); x = (a + c*cos(PHI)) .* cos(THETA); y = (a + c * cos(PHI)) .* sin(THETA); z = c * sin(PHI);

x = (a+ccos( )) cos() y = (a+ccos( )) sin() z = c sin()

..

28


2.25 Scilab script 3D Parametric Surface

3.2.5 3 Control 3D Surface

CWGraph3D Properties... 2.21 ( 1) Plots Style Color map style Custom Edit 2.26 2.27

2.26 Custom

2

3

4

1

..

29

2.27 Color Map Editor

3.2.6 3 Run Continuously (torus) 2.28

2.28 (torus)

..

30

3.3 3 3 (3D sinc function)

3.3.1 Front Panel

3 Classic Classic Graph ActiveX 3D Parametric Graph 2.24 ( 2)


3.3.3 Add Output x , y z

Array 2 z Choose Data Type 2-D Array of Complex 2.19 ( 1)


2.29 Scilab script 3D Parametric Surface

y = dsin(d) d = 2y2x +

x = -6:0.5:6; y = -6:0.5:6; [XX, YY] = ndgrid(x, y); d = sqrt(XX.^2 + YY.^2); d(find(d == 0)) = %eps; ZZ = sin(d)./d;

..

31

3.3.5 3 Control 3D Surface CWGraph3D Properties... 2.21 ( 1) Plots Style Color map style Custom Edit 2.26 ( 2) 2.30

2.30 Color Map Editor

3.3.6 3 Run Continuously (torus) 2.31

2.31 3

..

32

REFRENCE

[1] .... , LabVIEW, . [2] .. , SCILAB ( 2), , 2549. [3] www.scilab.org , LabVIEW to Scilab Gateway Version 1.1 for Windows, December 1, 2008

Documents

Scilab LabVIEW Gateway