Re : Video Output for PXI Embedded Real-Time Controller ?

[Herlag]

I plan to purchase a PXI Embedded Real-Time Controller for security monitoring.

Is it possible to use the video output of a PXI Controller running RTOS to display messages from a LabVIEW RT application ? According to the documentation, it seems that the use of the video output is only possible for PXI Controllers running Windows XP.

Does it exist a specific application to do this with LabVIEW RT ?

Thanx.

H.L.

[YannC]

Hi,

What kind of message do you want to display?

Here you can find a similar post on the forum:

using the local monitor from a pxi labview rt system as the HMI without a pc attached.

Regards

[Herlag]

Thanx for the answer and for the link.

My plan is to use a PXI Embedded Real-Time Controller for security moritoring.

Security regulations require special logo and text to be displayed according to the conditions in the zone under control. Thus I have to continuously display a static image among various statutory ones, each one corresponding to specific security conditions.

[YannC]

Hi,

It's not possible to display static image on a PXI running only RTOS.

You can use the  RT hypervisor to have an RTOS and a Win XP on the same PXI.

 Regards

[Herlag]

Hi Yann,

The situation seems a bit confusing as in the link you've given above using the local monitor from a pxi labview rt system as the HMI without a pc attached, two messages (here and here) say that it is possible to display an image on the video output of a PXI RT controller using a function of the NI-IMAQ librarey (namely, the IMAQ RT Video Out VI) !

I have the NI-IMAQ library but no PXI controller to test if this solution should work or not 😞

Does anyone have the answer ?

Thanx,

H.L.

[YannC]

Hi,

Mea Culpa, you're right! With PXI Controller it's possible to use the NI-IMAQ library and the IMAQ RT Video Out VI. I'll try this function and send you some return.

Regards

[Herlag · Accepted solution]

All right, it works using the IMAQ RT Video Out VI : pictures are correctly displayed via the video output of the PXI Controller running RTOS.

Thanx.