VISA Read won't return data in case of timeout?

[MaSta]

Hello! 

I just want to verify if this is expected: when using VISA Read with eight bytes while the message coming in only has six bytes it causes a timeout and an error (VI_ERROR_ABORT). I can see in the IO Trace that the six-byte message is received, but it's not returned via the output of VISA Read.

Normal?

[rolfk]

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@MaSta wrote:

Hello! 

I just want to verify if this is expected: when using VISA Read with eight bytes while the message coming in only has six bytes it causes a timeout and an error (VI_ERROR_ABORT). I can see in the IO Trace that the six-byte message is received, but it's not returned via the output of VISA Read.

Normal?

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Yes, when VISA returns an error it won't remove the data from the incoming buffer. The data is still there and you should be able to read it with a properly configured VISA Read.