Thank you so much for the answer, Kemens. I connected an indicator to read the acquired buffer no. I haven't seen any different behavior. I just feel I don't really understand this so called 'acquired buffer number'. I have no idea whether there's a limitation of that number. For example, I understand it should be a circular buffer. If I don't output my data after acquiring it, would the new data overwrite in the buffer when some threshold is achieved? (say, after 1000 frames, the buffer start to clear itself and rewrite?)
I ask this question just because i want to separate my data acquisition part and logging part in different while loops. So I may not want the data to be store immediately after grabbing. I may want the logging process to be hold until some point.
Thank you again, Kemens!