How is a signal (external Trigg from PCI 1409) sent thru RTSI into PCI 1422?

[ahernand]

Hello. I am not a super user so please be patient. How is a signal aquired using PCI 1409 (external trigger0)sent thru RTSI into PCI 1422 to trigger the aquireing of an image?

[Amaury]

If I understand correctly you have an external trigger which comes in on the 1409 trigger 0 pin and you want to have the 1422 trigger off the same signal?

On the 1409 Code add:
Using IMAQ generate pulse:
Trigger Line - RTSI-X
Signal - External Triger 0
Mode - Retrigerable Pulse

This will make the 1409 output a pulse on RTSI-X each time it sees a pulse on the external trigger 0.
Then follow a trigger example for the 1422 and use RTSI-X as the trigger.

Note that if the cameras are not in an asynchronous reset mode this will not acutally syschronise the frames within more that 1/frame rate seconds

Hope this helps!
Regards,
Amaury
NI Applications Engineer