RT with Daqmx

[Venkat]

Hi,
I am using RT7.1 with Daqmx Driver 7.2 for my application. I am using two PXI6052E cards with PXI 8175 RT Controller. I am using Synchronized daqmx acquisition example VI to acquire data from both DAQ cards. If I am downloading this vi from Host PC then it is running fine in all priority levels. If I am building it as an application (With build target RT and rebooting the controller) then program is running fine with normal priority. But it is not running in High priority levels. It is giving error in timing property node (error code -89130). What mistake I am doing?

[GValdes]

Venkat,

Could you tell me exactly which example are you running? Also, what priority level are you setting for the VI? I will like to try that VI on my side. It shouldn't make a difference if it is running as a VI or an executable, so I want to replicate your settings.

I hope to hear back from you soon.

Gustavo Valdes
Applications Engineer

[Venkat]

Hi,
I am using

Multi Device Synchronous shared Time base Continuous acquisition.vi

Which is inside DAQmx-Synchronization folder.


Thanks,
S.Venkat

[GValdes]

Venkat,

Do you mind if I ask you why would you like to run this in a higher priority? I tried running that program. However, if I increase the priority and run the VI, it will not have time to update the local computer; since the code is running in higher priority, the VI does not have time to update the graph. I am surprised I did not get the same behavior. Did you add anything else to the code, or modified the sample rate?

Please, let me know the exact configuration of the system. The error you are receiving doesn't seem to relate too much to RT and shouldn't be occuring.

G Valdes