System variables cannot be monitored with National Instruments Published Variable Monitor

Question

Hi everyone !
Currentlty I´m facing a problem with shared variables libraries.
All shared variables libraries used in my application are set to autodeploy with Autodeploy Variables in the Project Explorer Window; when the application starts a window is shown - Deploy ... - that shows the deployment progress and by selecting Close on successful completion this window is closed automatically and that is exactly what happens in my application, but when my application starts to read  shared variables bound to daqmx virtual channels  an error occurred -  code: -1950679034; source: ni_tagger_lv_Read; possible reason(s):  The shared variable has no value.
After that I decided to open the National Instruments Published Variable Monitor to check if my application libraries were really deployed and I found that every shared variable which wasn´t bound to a daqmx channel was working perfectly but those that were bound to a daqmx channel weren´t - their qualities were Stale No Value. When this happenned I immediatly thought it could be some problem occurring with the binding process, then I decided to also monitor the global virtual channels to which my shared variables were supposedly  bound and I found that their qualities were Stale. I don´t know what else I can do, can anyone help me with this?
My applications runs on a PXI 8186 controller under Windows XP, LabVIEW 8.0.1 and LabVIEW DSC 8.0.1.

Answer 1

Make sure if the DAQmx driver version is 8.0 or later, the shared variable binding to global channel feature is available since version 8.0. You can download the latest version of DAQmx driver from our website www.ni.com in drivers and updates section.
Regards,
Rogerio Rodrigues
AE National Instruments Brazil