rs232_error no -1073807202,Property Node in VISA Configure Serial Port

[antonis]

I RUN THE SERIAL PORT EXAMPLES OF LABVIEW AND I GET THE ERROR 1073807202 ,Property Node in VISA Configure Serial Port.CAN ANYONE HELP ME TO SOLVE IT?I FOUND A SUGGESTION ABOUT IT AT THE SUPPORT BUT IT DIDN'T HELP ME.IT WAS ABOUT THE STOP BITS,WHICH I HAVE FIXED THEME RIGHT.

[Deepu]

Hi antonis,

Why don't you post the vi that you have tried with errors. That will help us to see the problem.

Regards

[jcoves]

Dear all,

sorry for my intromission but I have had the same error message.

So far, what I could discover indicates that there is a problem which is system dependent.

The error pops up, at least in my case, when I haven't inicialized the port correctly because the VISA control does not find the serial port.

My application runs fine in my machine. I made the executable file and tried to run it in other machine. The thing is that I tried to run my application in another PC and I had this error message. (Both machines using Win2000 and RunTimeEngine 7.0)

After installing Labview in this other machine to be able to debug the application there I found out that the VISA control did not find any of the commports installed on that machine.

Maybe this is not your case, and your VISA control detects all your ports. In that case I guess your application is trying to run an action with the port before this one has been initialized. Try to check the flow of your application (that happened to me too).

On the other hand, if you cannot see the ports, as it is my problem, I would really apreciate if anyone could help us on finding the solution.

I've tried the "Find Visa Resources" control and depending on the machine I have run the program (all of them using Win2000), I had different results. Anyone knows why? Have you had this problem too?

Thanks a lot

[tbob]

Reboot your PC, and upon booting up, press the key that allows you to go into the BIOS setup.  Here you will find a screen for the serial ports.  Check the configuration on a PC that works and compare it to a PC that doesn't work.  Perhaps the port is disabled on the PC that doesn't work, or maybe the address and/or interrupt are wrong.  Other than that, I would say that maybe your serial port is not working.

[m.gerbracht]

I have the same problem. When I try to run the LabView example "Basic Serial write and read" I get the error message "A code library required by VISA could not be located or loaded".

I have seen that this problem has been discussed here often but none of the answers solved my problem. Running LabView 8.2 on Windows XP I tried the following to solve the problem:

1. Tried to uninstall LabView 8.2 and install it again because on another computer with the same installation of LabView 8.2 the example program worked
2. Try to install VISA from this website, but it was already installed
3. Checked the settings of the serial port in the BIOS, they were set to:
    Port 1: 3F8/IRQ4
    Port 2: 2F8/IRQ3

    I set both to "auto". But neither using the old nor using the new settings the problems disappeared.
4. An Acton Monochromator connected to one of the two serial ports works fine for both BIOS settings

It would be nice if someone could suggest a solution or something I could check to solve the problem. It would also be ok to use another example VI that communicates to the serial port without using VISA.

Thanks in advance!
Michael

[tbob]

You may have to uninstall all NI software, expecially Labview and VISA, and then reinstall.  It seems as if VISA was not properly installed in the first place.

[m.gerbracht]

Ok, how can I uninstall VISA and where is it saved on the harddrive? Yesterday I deinstalled LabView using the LabView installer on the CD. I deinstalled anything this installer could find on the harddrive. If this is not enough, how can I deinstall all NI components more efficiently?

Thanks,
Michael

[tbob]

Open the Control Panel.  Run Add/Remove Software.  Look for NI software in the list.  Click on remove.  Check to see if VISA is listed separately, but I believe that it is listed under NI software.

[m.gerbracht]

Ok, now it works. I did the following:

1. Uninstall LabView using the Installer CD
2. Uninstall Labview by standard widows "add/remove programs"
3. Deleting the National Instruments directory
4. Using MSIBlast as deleted everything NI related
5. Installing LabView 8.2 again.

I guess that is not the recommanded way to uninstall LabView but it worked for me.

Thanks,
Michael