Serial communication problem in Labview 8.2

[HeatherJ]

Hello,

I am using serial port to communicate. It works just fine with source code. When I generate stand alone application and  run on my computer it works too. However, when I install it on another computer, I cannot get the computer talk any more. It will run but no communication. I am using application builder built the application and installation files. I am sure the serial port on the other computer is working since I have other application built by Labview 6.1 running just fine. Any idea what happened?

Thanks.

[Dennis_Knutson]

Did you include the VISA run-time with your installation? With 6.1, you had the option of using the obsolete serpdrv driver for serial. That is no longer supported and you have to use VISA. The other thing to check to see is whether the aliases exist (i.e. Com1). Open MAX (Measurement & Automation Explorer), and check.

[HeatherJ]

Thanks, Dennis.

Where is the VISA run time? I did installed the run time engine 8.2. Is there anything else I need to install too?

[Dennis_Knutson]

In the build specifications, you should select to create an installer. Then you can select Additonal Installers. Select the options for NI-VISA run time and Measurement and Automation Explorer. They are also on your drivers CD and available for download from https://www.ni.com/en/support/downloads.html.