Synchronize several 9191 chassis

Hello

I have a project where I need to use four 9191 chassis Wi - Fi (each of them is containing a module 9239). Each of them will have the right distance between (20-30 m)

How to synchronize acquisition on all four frame?

Thank you

Hi TinoMK,

Looking for how tight synchronization? There is no way to truly synchronize 9239 in of 9191 since you cannot share time bases, examples of clock or triggers. The closest you could come starts the task at the same time. You would be always at the mercy of your network latency time.

A trick that might get you more closely to leave real at the same time uses the DAQmx controls Task.vi to commit all the tasks before them. Since the time it takes to commit a task can vary from task to task, if you wait until all your tasks are committed before you start them, you can do your measurements closer to "synchronized" as is possible with your hardware configuration.

I hope this help to point you in the right direction.

Kind regards

Tags: NI Hardware

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