Serial Port Write.vi doesn't work, wenn I try to write a charakter

[Dima]

It's hang and doesn't get out. I can get out only wenn I stop the vi.

[Shannon R]

Dima,

Since I don't have the specifics of the problem, such as your operating system or version of LabView, I cannot be sure of the solution.

However, if you are using LabView 4.1, there is a knowledge base article on National Instrument's web site that may help you. The address is http://digital.ni.com/public.nsf/3efedde4322fef19862567740067f3cc/8d5bed8d77b96c49852563a9004585bd?OpenDocument.
Even if you are not using LabView 4.1, this may help if you have an older version of the serpdrv file in the LabView directory.

Other than that, I would recommend making sure that you are using the correct termination character. NI Simulator expects either \n or \r after the string that you are sending.

Thanks and good luck!

Shannon Rariden
Applications Engineer
Natio
nal Instruments