D-1
Appendix D
Creating a Visual Basic Test Program
Creating a Visual Basic Test Program
The following procedure creates a test program in Visual Basic that you may use to test
5520A Calibrator RS-232 Host port and RS-232 UUT port operation. This program is
referenced in Chapter 4 under “Testing RS-232 (Host) Operation using Visual Basic”
and “Testing RS-232 (UUT) Operation using Visual Basic.” This procedure assumes you
have access to the Custom Control Icons in your edition of Visual Basic, and creates the
least complicated program for RS-232 testing.
Complete the following procedure to create an RS-232 test program in Visual Basic.
1. Open Microsoft Visual Basic from the Visual Basic group, displaying the Form1
screen (below).
2. From the Toolbox, double click the Command icon , creating a Command1
button on the Form1 screen. Repeat, creating a Command2 button. Repeat again
creating a Command3 button.
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