VISA Serial read issues

[Pontigre]

Hi,

I am using LabView to read the resistance values from an AC Resistance bridge using the VISA commands basically copied and pasted from the Basic Serial Read and Write.vi and am currently running into an error:

VISA: (Hex 0xBFFF006C) An overrun error occured during transfer. A character was not read from the hardware before the next character arrived.

I was wondering how to fix this as well as turn the outputs of the RVAL command into a double.

Cheers

[Minions · Accepted solution]

Read more than 2 characters during your VISA Read.  I typically use some number large enough to handle most situations (200).  You might be leaving the termination characters and others behind which may be causing this issue as you send the next request to the instrument.  The VISA Read should stop upon receipt of a termination character. 

[crossrulz]

What sensor are you using?  Hard to give any real advice without knowing the communication protocol.  This information is typically in the manual.

[Pontigre]

Thanks! That seems to get rid of the error!