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Trouble communicating in RS232

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Hello everyone,

 

I recently changed the computer (from windows 7 to windows 10) that is communicating with a bunch of instrument, especially one in RS232.

Since I switched computer, I had trouble establishing a communication with that instrument, either through NIMax or via LabVIEW.

 

More specifically, I have trouble from reading instruction from the port: it work perfectly or not at all from one day to another, for a reason that I cannot understand.

The instructions that I write on the port are always taken into account by the instrument, meaning that the communication is established, but I sometimes can't Read at all instructions from the instrument (leads to timeout).

 

The port configuration (baud rate, stop bit, parity, buffer size ...) are correct, and I write the instruction in the good way (term char, line feed etc.).

So, I can't figure out why it sometimes work, and why it sometimes does not work:

-Is it linked to this new computer's port configurations ?

-Are there errors stuck in the instrument register ?

 

More information are probably needed, I am not an expert in the field.

Thanks in advance for your ideas !

 

Sam

 


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