VERY Intermittent VISA error "Property Node (arg 1)" on Bytes at Port

[edweir]

Cross post from LAVAg.org: http://lavag.org/topic/16777-very-intermittent-visa-error-property-node-arg-1-on-bytes-at-port/

I'm running a queue controlled multi-loop many master/many slave data parser (among other features), and gosh darn it if it isn't mostly working!  However, one issue that I'm running into is an extremely un-reproducible error in the serial data read/write loop out to a USB Telegesis module.  I can't seem to replicate it, and when it happens, it may happen a few times in a row, but usually upon a software reset, disappears again.  This software will be running for a significant period of time without user intervention, so I can't afford to have this happen when someone's not around to fix it.  Any ideas?

The Error:

-1073807360,Property Node (arg 1) in ...(my top level vi).vi

The Code:

Thanks for the help!

[Richard_Smith]

Hi,

This error is generally caused by an unsupported configuration/property.  I think it will be useful if you could post an IO Trace log running the application. You can configure the software to stop after receiving the error (or certain amount of calls later). Also, remember to select just the VISA driver.  See the link below if you need information on how to set an IO Trace.

http://digital.ni.com/public.nsf/allkb/282C5D41E2BA04F2862574BA007803B9

Regards,

Richard.