Analog Source Triggering with more than one channel in channel list

[PeterTrollens]

Hello,

I am trying to use an analog reference trigger with a channel list that contains more than one entry using a
M Series 6289. I am aware that this is generally not possible to have more than one channel in the list due to hardware limitations. I was hoping if some sort of workaround exists.

I am using the NIDAQmx C API to control the card.

Using a second card that is syncronized via RTSI should
allow me to use an analog reference trigger to control multiple analog IO channels ... Right ???

Thanks for any advice!

Best regards
Peter

[Sean_C.]

Hello Peter,

If you look at the NI-DAQmx Help, Analog Triggering Considerations for E Series, M Series, and S Series Devices section, it says that to pause multiple channels with an Analog trigger, you must wire that signal to APFI0 or APFI1. Therefore, it is possible to perform this operation.

If you are sharing the AI Sample Clock across RTSI, then you would be able to stop multiple AI channels across multiple devices with the one Analog Reference Trigger.

I hope this helps,
Sean C.