Synchronization - Master and Slave tasks

[StathPol]

For syncrhonisation (via hardware) of two modlues; one 4330 and 6361, shall I create one master task for the 4330 and then syncrhinise it with the 6361 module? Or create multiple channels say 5 from 4330 and 5 from 6361 and then specify one channel from 4330 to be the master and all the rest modules from 4330 and 6361 to be slave tasks?

Thanks, 

[ShazilM]

Hi Pepis21, 

What is it exactly that you wish to achieve. Your solution would be decided depending on what you wish to acquire. The former option should work too. 

Here is a white paper on syncrhonization that I thought might be worth sharing: https://www.ni.com/en/support/documentation/supplemental/10/synchronization-explained.html

Regards,

[stevem181]

I don't know if this is compatible with your 6361, but it's worth a look.

Multi-Device Synchronization - Continuous Analog Input with Multiple Rates using PXIe-433x

https://forums.ni.com/t5/NI-DAQmx-Examples/Multi-Device-Synchronization-Continuous-Analog-Input-with...

The sync vis used in the example are located here:

C:\Program Files (x86)\National Instruments\LabVIEW 201X\examples\DAQmx\_Utility

steve

[StathPol]

I have checked the 6361 for syncrhonisation and it can syncrhonise the sensors:

https://www.ni.com/en-us/shop/model/pxie-6361.html

If you schroll down in the specifications' summary, it says:

Triggering: digital and analog

Syncrhonisation Bus (RTSI): Yes 

What I am trying to achieve is to consider master and slave tasks and share sample clock and digital start trigger to syncrhonise the sensors. I guess that we need to share the sample clock across all of the tasks, then do the same with digital start edge and then create a sequence structure to ensure that the slave tasks start before the master tasks.

Pepis21