Synchronization of different DAQ devices

[Azim]

Hi Dear Members,

I want to control the spindle motor. It needs three analog time delay signal to drive. Using the LabView program, I have generated the three time delay signals. But, I have DAQ device which have only two analog output pins. So, I have decided to use two DAQ devices so that can get three analog output ports. I am little bit worried about how to synchronize between the two DAQs. I will be happy if anyone can help me to let the procedure of synchronization of different DAQs.

Thank you in advance.

Best Regards

Azim

[JVP · Accepted solution]

Hello Azim,

There are many different ways to sync A/O on DAQ devices. However, it depends on what devices you are using. Could you tell me what DAQ devices you are using? LabVIEW coding is not very difficult, however how you connect the hardware will differ. For instance if you are using two pci cards you can connect them via RTSI cable; and use one as master and reference the clock off of the master.

Regards,

Jignesh P 

[Azim]

Hi Jignesh P

Thank you very much. I will use two PCIe 6363 and want to synchronize them. If I do connect them with RTSI cable, how I denote one as master and do referencing the clock? Would you please give me some example or related link.

Thank you once again for your co-operation.

Regards

Azim

[JVP]

Hi Azim,

There is an community example that can be found here: Synchronize Multiple Devices with a Shared External Sample Clock using DAQmx. 

The above image is the block diagram from the example I have listed.

Regards,

Jignesh

[Azim]

Thanks Jignesh!

Hope this will be helpful.

Regards

Azim.