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How to acquire multiple digital data to LabVIEW in the same time?

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Hi everyone!

 

I am now using PCI6221 and Labview 2016 to acquire multiple digital data from outside circuit. I hope to achieve the goal of acquiring data in the same time, but in the examples I find the example of continuous digital input and finite digital input will not support PCI6221.

 

So Does PCI6221 can achieve the job? How to deal with this problem the devices?

 

Thanks a lot!

 

Best,

Jason

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Hi guys!

 

I am confused about which type it is for PCI6221 to acquire multiple digital data, serial or parallel.

 

For example, if we acquire 3 bits data from outside circuit, will it go like 1-0-1 in only one line or parallel in 3 lines?

 

Thanks a lot!

 

Best,

Jason

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Solution
Accepted by topic author leo321

If you define a port to read/write, all of those lines in the port will be read/written at the same time in parallel.

 

Did you have a problem with the answers you got here?


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Dear crossrulz,

 

Thank you very much for your reply!

 

So in my case, if I want to acquire/generate multiple digital data for example 4 lines to send in/out 4 bits data each line, all the data will be read/written at the same time in parallel, so I need 16 lines to send out/in 4*4 bits data,right?

 

What will happen if I only use 1 line for each 4 bits data? (there are 4 bits each line)

 

Look forward to your reply! Thanks again!

 

Best,

 

Jason

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