Newbie level 4
I have an old instrument that uses the serial port for communication, I have written a VI for this and it has been working well on computers that use Windows 95 and 98. However we recently had to use a computer that has Windows 2000 and the VI has ceased to work. I was wondering if there are issues with LabView,Rs232 and NT. I can get the VI to work if I use the LabView in the trace mode but when it is in normal mode it won't work. I have tried to trace what is happening using Procom to monitor the serial ports but this does not show up any errors apart from sometimes missing the command string and never catching the return string from the instrument. In the VI I have the Tx and the Rx part of the programme in seperate sequence frames, so one should be finished before the other is called. I hope there are some experts out there that can help me. I was wondering if I have a rogue computer as I do not have any other computers running NT to test the VI on.