VISA Read buffer overrun

[JasonWB]

Hi all,

We are experiencing problems with a VISA read.  We are getting buffer overruns.  The data is coming in at 115kbps, so I guess that is not too unexpected.  This may be more of a problem with Windows than LabView, but how do accomodate this?  The data is coming in in packets, so it may be possible to handle this.  Is there any way to configure a USB serial port input to incorporate a FIFO?

Thanks,

Jason

[Can_W]

Hey Jason,
From what you've said, it does seem that the problem lies with the buffer size that windows has. There isn't really anything that you can do in LabVIEW or NI-VISA to correct the issue. However, you can change the settings to the FIFO to allow more data. This KnowledgeBase explains the process in doing so, there are several options, if you have any of the other modules mentioned, I would use that first.

Hope this helps