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problems whith rs232 comunication

I'm a new programer whith labview and i have problems whith rs232
omunications, in my VI i need to receibe 24 Bytes, i do, but sometimes
i receibe repeat bytes and the comunication is not correct, another
time the program don't receibe anything. Please help me

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I recommend using VISA to communicate since it is easier. If you are using LabVIEW 6i then open up a new vi and go to Help\Examples\I/O Interfaces\Serial Communication. There are several examples there that will help you get started. LabVIEW<->Serial is a good example if you either want to read or write and it allows you to specify the number of bytes read. Serial Communication is the example that I would use if you want to write and read. These will hopefully help you get started. If you have any questions, you can request either phone or email support at:

Kim L.
Applications Engineer
National Instruments
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