ICP DAS USA ISaGRAF VP-23W7, Руководство пользователя

Страница: 109 / 192

ISaGRAF WinCE ViewPAC User Manual , V.1.6 , 1/2017 by ICP DAS
6-1
Chapter 6 VB.NET 2008 Program Access To ISaGRAF
Variables
Important Notice:
Please store your application programs and data files in the \Micro_SD . Don't store them
in the \System_disk.
That is because the \System_Disk is using Nor Flash memory. Its size is
small and major purpose is for storing OS, ISaGRAF driver, some basic utilities and DLL . The
Nor Flash memory is not good for frequently updating files. If update files frequently in the
\System_Disk (for example, update a file every 1 to 5 seconds, then it will be about ten thousand
more updates in one day), the data or files in the \System_disk may crush or lost for some days
or months later.
This chapter lists the procedure for creating the first demo program by Visual Studio .NET 2008
development tool. There is some sample programs in the ISaGRAF WinCE ViewPAC CD-ROM
ISaGRAF WinCE ViewPAC CD-ROM :
\napdos\isagraf\vp-25w7-23w7\vb.net-2008-demo\
wp_vb01 : Digital I/O demo with one I-87055W in slot 0 of the ViewPAC.
wp_vb02 : Analog I/O demo with one I-87024W in slot 1 and one I-8017HW in slot 2.
wp_vb03 : Read / Write ISaGRAF internal integers, timers and real variables. (No I/O)
The related ISaGRAF demo project name are "wp_vb01.pia" , "wp_vb02.pia” and "wp_vb03.pia" in the
same directory.
6.1 Create a New Project
1. In the first, users need to open Microsoft Visual Studio .NET 2008 software. And then in the menu of
“ File ”, please run the “ New Project ” .