Synchronising streamed and finite data sets

[Jason K]

I am trying to get two programs to run together and to synchronise the data streams. One program requires continuous data streaming using AI Read (Channels 6 and 7) and the other collects a finite data set using the AI Waveform Scan (Scaled Array) function (Channels 0 to 5). Is it possible to acquire data from both programs simultaneously so that the final output is a single synchronised array (Channels 0 to 7).

If it is not possible to synchronise the data collection in this way than can anyone suggest a way to get a finite data set from both programs simultaneously bearing in mind that at least one of them requires data to be streamed continuously. I hope I have defined my problem clearly enough for someone to be of assis
tance.

PS. I am using the PCI-6036E DAQ Card on LabView 6.1 on Windows XP. I am fairly new to this so please forgive me if this is a silly question.

Thanks in advance.

Jason.

[Spencer S.]

Jason,

It is not possible to perform two simultaneous operations with the same DAQ resource. So, in your situation, it will not be possible to acquire analog input data from your PCI-6036E simultaneously with two separate tasks. Since you need to perform both a continuous and a finite operation, you should acquire continuously from all of the desired channels and parse out the required finite data set.

Good luck with your application.

Spencer S.

[Jason K]

Thanks for the quick reply.

I had a feeling that this might be the case. My limitation at the monent is sampling rate. I think that I will either upgrade the 6036E or install a second DAQ card.

Jason