labview 8.6 compatible with windows7 (serial port communication problem encountered)

[yu_guo]

Hi,

we have installed labview 8.6 in windows 7 (32 bit) PC, and NI device drivers installed (using NI devices driver DVD, 2011). We have a labview program run in the PC,

it communicates with another windows 2000 PC through COM port. initially the program developed in windows xp (labview 8.6 installed) and runs no problem. now we run the sourcecode in windows 7 PC which labview 8.6 installed. but intermittently there has serial port communciation, the labview program in windows 7 pc send data to windows 2000 pc, but the later one didn't receive the string and shows time out. baud rate for both pc to be set the same. if retry to send, windows 2000 pc can receive the string. but after a while, same problem happens again.

my question:

is this related to labview 8.6 compatible problem with windows 7(32 bit). I have checked in windows 7 pc, NI Visa 5.1.0, NI visa runtime-5.1.0 installed.? if it is not

labview 8.6 run in windows 7 problem, then any other reason to cause the problem?

Thanks a lot!

[smercurio_fc]

Is it possible that it's because LabVIEW 8.6 is not officially compatible with Windows 7? Yes. Is it likely the issue in your case? Impossible to say. It could also be your specific way that you are communicating. It could also be timing. You're running on another PC, so things may be running slower or faster, and so you might be seeing a race condition. Impossible to say without more details as to what your command/response protocol is, or without seeing any code.