topic Re: visa timeout expired before operation completed in LabVIEW https://ni.lithium.com/t5/LabVIEW/visa-timeout-expired-before-operation-completed/m-p/159200#M94792 Hello,<BR /><BR />You can use VISA to access the parallel port just as you would a COM (serial) port, only you will likely specify the LPT alias in the resource name selector; this will have an asrl formal name as well which you could use. In any event, which VI are you using and which VISA operation times out? If you could get an NI-Spy capture and post it, it may elucidate what is going on! The following link will help you get such a capture if you are not already familiar:<BR /><BR />http://digital.ni.com/public.nsf/websearch/8D890EC09B15C05A86256E6F007E3E86?OpenDocument<BR /><BR />Repost if you are still having problems!<BR /><BR />Best Regards,<BR /><BR />JLS <BR /> Fri, 22 Oct 2004 00:33:43 GMT JLS 2004-10-22T00:33:43Z visa timeout expired before operation completed https://ni.lithium.com/t5/LabVIEW/visa-timeout-expired-before-operation-completed/m-p/159199#M94791 Using LV 6.1.<BR />Trying to set the data bits on the parallel port using VISA per the example on the NI website.<BR />Nothing fancy. But I keep getting the VISA timeout error.<BR /><BR />Anyone have any ideas? <BR /> Wed, 20 Oct 2004 17:16:19 GMT https://ni.lithium.com/t5/LabVIEW/visa-timeout-expired-before-operation-completed/m-p/159199#M94791 nyc_(is_out_of_here) 2004-10-20T17:16:19Z Re: visa timeout expired before operation completed https://ni.lithium.com/t5/LabVIEW/visa-timeout-expired-before-operation-completed/m-p/159200#M94792 Hello,<BR /><BR />You can use VISA to access the parallel port just as you would a COM (serial) port, only you will likely specify the LPT alias in the resource name selector; this will have an asrl formal name as well which you could use. In any event, which VI are you using and which VISA operation times out? If you could get an NI-Spy capture and post it, it may elucidate what is going on! The following link will help you get such a capture if you are not already familiar:<BR /><BR />http://digital.ni.com/public.nsf/websearch/8D890EC09B15C05A86256E6F007E3E86?OpenDocument<BR /><BR />Repost if you are still having problems!<BR /><BR />Best Regards,<BR /><BR />JLS <BR /> Fri, 22 Oct 2004 00:33:43 GMT https://ni.lithium.com/t5/LabVIEW/visa-timeout-expired-before-operation-completed/m-p/159200#M94792 JLS 2004-10-22T00:33:43Z