Lakeshore Learning Materials 642 User Manual

Page 76

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Lake Shore Model 642 Electromagnet Power Supply User’s Manual

5-24

Computer Interface Operation

5.2.7.1 Visual

Basic Serial Interface Program Setup

The serial interface program works with Visual Basic 6.0 (VB6) on an IBM PC (or compatible) with a Pentium-class
processor. A Pentium 90 or higher is recommended, running Windows 95 or better, with a serial interface. It uses the
COM1 communications port at 9600 Baud. Use the following procedure to develop the Serial Interface Program in
Visual Basic.

1. Start

VB6.

2. Choose Standard EXE and select Open.
3. Resize form window to desired size.
4. On the Project Menu, click Components to bring up a list of additional controls available in VB6.
5. Scroll through the controls and select Microsoft Comm Control 6.0. Select OK. In the toolbar at the left of the

screen, the Comm Control will have appeared as a telephone icon.

6. Select the Comm control and add it to the form.
7. Add controls to form:

a. Add three Label controls to the form.
b. Add two TextBox controls to the form.
c. Add one CommandButton control to the form.
d. Add one Timer control to the form.

8. On the View Menu, select Properties Window.
9. In the Properties window, use the dropdown list to select between the different controls of the current project.


10. Set the properties of the controls as defined in Table 5-7.
11. Save the program.

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